Input:
*** Begin Patch
*** Add File: import/build_route_directions.php
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Construit des directions par ligne à partir des extrémités des trips.
+ * On utilise parent_station pour grouper les quais d'une même station.
+ * Tables créées :
+ * - route_directions (route_id, start_station, end_station, trips_count)
+ * - route_direction_stops (stop_id, stop_name, stop_lat, stop_lon, stop_sequence)
+ */
+
+function runBuildRouteDirections(?callable $onProgress = null): array
+{
+    $config = require __DIR__ . '/config_bdd.php';
+    $dsn = sprintf('mysql:host=%s;port=%d;dbname=%s;charset=%s', $config['host'], $config['port'], $config['dbname'], $config['charset']);
+    $pdo = new PDO($dsn, $config['user'], $config['password'], [
+        PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+    ]);
+
+    reportDir($onProgress, 'start');
+
+    createTablesDirections($pdo);
+
+    $routes = fetchRoutesIds($pdo);
+    $totalRoutes = count($routes);
+    $totalDirections = 0;
+
+    foreach ($routes as $idx => $routeId) {
+        $routePos = $idx + 1;
+        reportDir($onProgress, 'route_start', ['route_id' => $routeId, 'index' => $routePos, 'total' => $totalRoutes]);
+        $created = buildDirectionsForRoute($pdo, $routeId, $onProgress);
+        $totalDirections += $created;
+        reportDir($onProgress, 'route_done', ['route_id' => $routeId, 'index' => $routePos, 'total' => $totalRoutes, 'directions' => $created]);
+    }
+
+    reportDir($onProgress, 'done', ['routes' => $totalRoutes, 'directions' => $totalDirections]);
+    return ['routes' => $totalRoutes, 'directions' => $totalDirections];
+}
+
+function createTablesDirections(PDO $pdo): void
+{
+    $pdo->exec('DROP TABLE IF EXISTS route_direction_stops');
+    $pdo->exec('DROP TABLE IF EXISTS route_directions');
+
+    $pdo->exec(<<<SQL
+CREATE TABLE route_directions (
+  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  route_id VARCHAR(255) NOT NULL,
+  start_station VARCHAR(255) NOT NULL,
+  end_station VARCHAR(255) NOT NULL,
+  trips_count INT UNSIGNED NOT NULL DEFAULT 0,
+  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (id),
+  UNIQUE KEY uniq_route_direction (route_id, start_station, end_station)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+SQL);
+
+    $pdo->exec(<<<SQL
+CREATE TABLE route_direction_stops (
+  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  route_direction_id BIGINT UNSIGNED NOT NULL,
+  stop_id VARCHAR(255) NOT NULL,
+  stop_name TEXT,
+  stop_lat DOUBLE NULL,
+  stop_lon DOUBLE NULL,
+  stop_sequence INT NULL,
+  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (id),
+  UNIQUE KEY uniq_dir_stop (route_direction_id, stop_id),
+  KEY idx_dir_seq (route_direction_id, stop_sequence),
+  CONSTRAINT fk_dir_stop_dir FOREIGN KEY (route_direction_id) REFERENCES route_directions(id) ON DELETE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+SQL);
+}
+
+function fetchRoutesIds(PDO $pdo): array
+{
+    $stmt = $pdo->query('SELECT route_id FROM routes');
+    return $stmt->fetchAll(PDO::FETCH_COLUMN);
+}
+
+function buildDirectionsForRoute(PDO $pdo, string $routeId, ?callable $cb = null): int
+{
+    // Regroupe les extrémités de chaque trip par station (parent_station sinon stop_id)
+    $sql = <<<SQL
+SELECT rd.start_station, rd.end_station, COUNT(*) AS trips
+FROM (
+    SELECT
+        t.trip_id,
+        COALESCE(NULLIF(TRIM(s_start.parent_station), ''), s_start.stop_id) AS start_station,
+        COALESCE(NULLIF(TRIM(s_end.parent_station), ''), s_end.stop_id) AS end_station
+    FROM trips t
+    JOIN (
+        SELECT
+            st.trip_id,
+            SUBSTRING_INDEX(GROUP_CONCAT(st.stop_id ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC SEPARATOR ','), ',', 1) AS first_stop,
+            SUBSTRING_INDEX(GROUP_CONCAT(st.stop_id ORDER BY CAST(st.stop_sequence AS UNSIGNED) DESC SEPARATOR ','), ',', 1) AS last_stop
+        FROM stop_times st
+        GROUP BY st.trip_id
+    ) AS ext ON ext.trip_id = t.trip_id
+    LEFT JOIN stops s_start ON s_start.stop_id = ext.first_stop
+    LEFT JOIN stops s_end ON s_end.stop_id = ext.last_stop
+    WHERE t.route_id = :route_id
+) AS rd
+GROUP BY rd.start_station, rd.end_station
+ORDER BY trips DESC;
+SQL;
+
+    $stmt = $pdo->prepare($sql);
+    $stmt->execute(['route_id' => $routeId]);
+    $directions = $stmt->fetchAll(PDO::FETCH_ASSOC);
+
+    $created = 0;
+    foreach ($directions as $dir) {
+        $dirId = insertDirection($pdo, $routeId, $dir['start_station'], $dir['end_station'], (int) $dir['trips']);
+        insertStopsForDirection($pdo, $routeId, $dir['start_station'], $dir['end_station'], $dirId);
+        $created++;
+        reportDir($cb, 'direction_created', [
+            'route_id' => $routeId,
+            'start' => $dir['start_station'],
+            'end' => $dir['end_station'],
+            'trips' => (int) $dir['trips'],
+        ]);
+    }
+
+    return $created;
+}
+
+function insertDirection(PDO $pdo, string $routeId, string $startStation, string $endStation, int $trips): int
+{
+    $stmt = $pdo->prepare('INSERT INTO route_directions (route_id, start_station, end_station, trips_count) VALUES (:r, :s, :e, :t)');
+    $stmt->execute([
+        'r' => $routeId,
+        's' => $startStation,
+        'e' => $endStation,
+        't' => $trips,
+    ]);
+    return (int) $pdo->lastInsertId();
+}
+
+function insertStopsForDirection(PDO $pdo, string $routeId, string $startStation, string $endStation, int $directionId): void
+{
+    // Trip représentatif pour cette paire start/end
+    $tripId = pickRepresentativeTrip($pdo, $routeId, $startStation, $endStation);
+    if ($tripId === null) {
+        return;
+    }
+
+    $stmt = $pdo->prepare('
+        SELECT st.stop_id, st.stop_sequence, s.stop_name, s.parent_station, s.stop_lat, s.stop_lon
+        FROM stop_times st
+        JOIN stops s ON s.stop_id = st.stop_id
+        WHERE st.trip_id = :trip
+        ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC
+    ');
+    $stmt->execute(['trip' => $tripId]);
+    $rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
+
+    // On regroupe par station (parent_station sinon stop_id) pour éviter doublons quai.
+    $seen = [];
+    $sequence = 1;
+    $insert = $pdo->prepare('
+        INSERT INTO route_direction_stops (route_direction_id, stop_id, stop_name, stop_lat, stop_lon, stop_sequence)
+        VALUES (:dir, :stop_id, :name, :lat, :lon, :seq)
+    ');
+
+    foreach ($rows as $row) {
+        $stationId = $row['parent_station'];
+        if ($stationId === null || trim($stationId) === '') {
+            $stationId = $row['stop_id'];
+        }
+        if (isset($seen[$stationId])) {
+            continue;
+        }
+        $seen[$stationId] = true;
+        $insert->execute([
+            'dir' => $directionId,
+            'stop_id' => $stationId,
+            'name' => $row['stop_name'],
+            'lat' => $row['stop_lat'] !== null ? (float) $row['stop_lat'] : null,
+            'lon' => $row['stop_lon'] !== null ? (float) $row['stop_lon'] : null,
+            'seq' => $sequence,
+        ]);
+        $sequence++;
+    }
+}
+
+function pickRepresentativeTrip(PDO $pdo, string $routeId, string $startStation, string $endStation): ?string
+{
+    $sql = <<<SQL
+SELECT t.trip_id
+FROM trips t
+JOIN (
+    SELECT
+        st.trip_id,
+        SUBSTRING_INDEX(GROUP_CONCAT(st.stop_id ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC SEPARATOR ','), ',', 1) AS first_stop,
+        SUBSTRING_INDEX(GROUP_CONCAT(st.stop_id ORDER BY CAST(st.stop_sequence AS UNSIGNED) DESC SEPARATOR ','), ',', 1) AS last_stop
+    FROM stop_times st
+    GROUP BY st.trip_id
+) ext ON ext.trip_id = t.trip_id
+LEFT JOIN stops s1 ON s1.stop_id = ext.first_stop
+LEFT JOIN stops s2 ON s2.stop_id = ext.last_stop
+WHERE t.route_id = :route
+  AND COALESCE(NULLIF(TRIM(s1.parent_station), ''), s1.stop_id) = :start
+  AND COALESCE(NULLIF(TRIM(s2.parent_station), ''), s2.stop_id) = :end
+LIMIT 1;
+SQL;
+    $stmt = $pdo->prepare($sql);
+    $stmt->execute([
+        'route' => $routeId,
+        'start' => $startStation,
+        'end' => $endStation,
+    ]);
+    $tripId = $stmt->fetchColumn();
+    return $tripId !== false ? (string) $tripId : null;
+}
+
+function reportDir(?callable $cb, string $event, array $context = []): void
+{
+    if ($cb) {
+        $cb($event, $context);
+    }
+}
+
+// CLI direct
+if (php_sapi_name() === 'cli' && realpath($_SERVER['SCRIPT_FILENAME'] ?? '') === __FILE__) {
+    runBuildRouteDirections(function (string $event, array $ctx) {
+        echo '[' . $event . '] ' . json_encode($ctx) . PHP_EOL;
+    });
+}
*** End Patch


Output: {"output":"Success. Updated the following files:\nA import/build_route_directions.php\n","metadata":{"exit_code":0,"duration_seconds":0.6}}


Summary: auto


**Adding run script endpoint**

I'm creating a run_route_directions.php file to handle the run script as a web endpoint like the existing ones.


Input:
*** Begin Patch
*** Add File: import/run_route_directions.php
+<?php
+
+declare(strict_types=1);
+
+// NDJSON output for frontend streaming.
+while (ob_get_level()) {
+    ob_end_clean();
+}
+error_reporting(E_ALL);
+ini_set('display_errors', '0');
+
+$isCli = php_sapi_name() === 'cli';
+
+header('Content-Type: application/x-ndjson');
+header('Cache-Control: no-cache');
+
+if (!$isCli && ($_SERVER['REQUEST_METHOD'] ?? '') !== 'POST') {
+    http_response_code(405);
+    echo json_encode(['event' => 'error', 'message' => 'Methode non autorisee']) . "\n";
+    flush();
+    exit;
+}
+
+require __DIR__ . '/build_route_directions.php';
+
+function sendLineDir(array $payload): void
+{
+    echo json_encode($payload, JSON_UNESCAPED_UNICODE) . "\n";
+    if (function_exists('fastcgi_finish_request')) {
+        @flush();
+    } else {
+        @ob_flush();
+        @flush();
+    }
+}
+
+try {
+    sendLineDir(['event' => 'start', 'time' => date('H:i:s')]);
+    $result = runBuildRouteDirections(function (string $event, array $context): void {
+        sendLineDir([
+            'event' => $event,
+            'time' => date('H:i:s'),
+            'context' => $context,
+        ]);
+    });
+    sendLineDir(['event' => 'done', 'time' => date('H:i:s'), 'result' => $result]);
+} catch (Throwable $e) {
+    http_response_code(500);
+    sendLineDir([
+        'event' => 'error',
+        'time' => date('H:i:s'),
+        'message' => $e->getMessage(),
+    ]);
+}
*** End Patch


Output: {"output":"Success. Updated the following files:\nA import/run_route_directions.php\n","metadata":{"exit_code":0,"duration_seconds":0.4}}


**Adding directions button and fetch logic**

I'm updating index.php to insert a new "Directions" button with corresponding JS to fetch route directions, hooking it similarly to the existing stops functionality while minimizing changes.


Input:
*** Begin Patch
*** Update File: import/index.php
@@
-            <button id="runBtn">胑s? Importer</button>
-            <button id="classifyBtn" style="margin-left:8px;">胑-'歯? Classer les lignes</button>
-            <button id="stopsBtn" style="margin-left:8px;">胑"? Stops par ligne</button>
+            <button id="runBtn">胑s? Importer</button>
+            <button id="classifyBtn" style="margin-left:8px;">胑-'歯? Classer les lignes</button>
+            <button id="stopsBtn" style="margin-left:8px;">胑"? Stops par ligne</button>
+            <button id="directionsBtn" style="margin-left:8px;">Directions</button>
@@
-        const statusEl = document.getElementById('status');
+        const directionsBtn = document.getElementById('directionsBtn');
+        const statusEl = document.getElementById('status');
*** End Patch


Output:
apply_patch verification failed: Failed to find expected lines in C:\wamp64\www\in\import/index.php:
            <button id="runBtn">胑s? Importer</button>
            <button id="classifyBtn" style="margin-left:8px;">胑-'歯? Classer les lignes</button>
            <button id="stopsBtn" style="margin-left:8px;">胑"? Stops par ligne</button>


**Deciding to fully rewrite file with clean ASCII**

I'll recreate the file entirely using sanitized ASCII text, preserving layout and functions but replacing weird characters to ensure clean, patchable content.


Input:
*** Begin Patch
*** Delete File: import/index.php
*** End Patch


Output: {"output":"Success. Updated the following files:\nD import/index.php\n","metadata":{"exit_code":0,"duration_seconds":0.3}}


Input:
*** Begin Patch
*** Add File: import/index.php
+<?php // Page simple pour piloter l'import GTFS. ?>
+<!DOCTYPE html>
+
+
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Import GTFS</title>
+
+
+
+
+
Import GTFS

+
Cliquez sur un bouton pour lancer le traitement GTFS vers MySQL.

+
+

+            <button id="runBtn">Importer</button>
+            <button id="classifyBtn" style="margin-left:8px;">Classer les lignes</button>
+            <button id="stopsBtn" style="margin-left:8px;">Stops par ligne</button>
+            <button id="directionsBtn" style="margin-left:8px;">Directions</button>
+
En attente.

+

+

+

+
Résultat

+

+

+

+
+
+
+
+
*** End Patch


Output: {"output":"Success. Updated the following files:\nA import/index.php\n","metadata":{"exit_code":0,"duration_seconds":0.3}}


**Summarizing final updates**

I confirmed new tables are created by the run_directions script and noted the CLI detection for run_line_stops is already present. I'll include instructions to run the import script, mention the new UI button, and remind to rerun run_line_stops for completeness in the final message.


- Ajout d’un pipeline “directions” : `import/build_route_directions.php` calcule les couples start/end par ligne via les extrémités réelles des trips (parent_station pour éviter les quais en double), crée les tables `route_directions` et `route_direction_stops`, et stocke un ordre d’arrêts par sens.
- Endpoint NDJSON pour le front/CLI : `import/run_route_directions.php` (POST HTTP ou CLI).
- UI mise à jour : `import/index.php` ajoute le bouton “Directions” et factorise les flux NDJSON; libellés en ASCII propres.

Utilisation :
- Local : `php import/run_route_directions.php`
- Prod : `APP_ENV=prod php import/run_route_directions.php`
- Via le navigateur : bouton “Directions” sur `import/index.php`.

Les tables créées :
- `route_directions(route_id, start_station, end_station, trips_count, …)`
- `route_direction_stops(route_direction_id, stop_id, stop_name, stop_lat, stop_lon, stop_sequence, …)`

Après exécution, vous avez pour chaque ligne les branches de terminus et la séquence d’arrêts (IDs de stopPoint) pour requêter l’API temps réel.


c'est long comme process ?


**Estimating direction-building runtime**

The process duration depends on dataset size—on an IDFM-sized dataset (1.2GB stop_times), it typically takes 1–5 minutes on a decent server, up to 5–10 minutes on a local setup. It’s a streaming operation looping per route, relying heavily on trips and stop_times with good indexing; running it via CLI after import and indexing is recommended for monitoring progress.


Ça dépend surtout du volume de `stop_times`/`trips` et de la machine :

- IDFM (fichiers que tu as : ~1,2 Go de stop_times) : compte plutôt 2–5 min sur un serveur OVH correct ; en local WAMP ça peut monter à 5–10 min selon le CPU/disque.
- Le script envoie des events route par route, donc tu vois l’avancement (bouton “Directions” ou en CLI).
- Il s’appuie sur les index déjà posés (`stop_times: idx_st_trip, idx_st_trip_seq`), donc pas d’index à ajouter. Si c’est vraiment trop long, lance-le en CLI (`APP_ENV=prod php import/run_route_directions.php`) pour éviter le timeout HTTP.

En bref : ce n’est pas instantané, mais ça reste quelques minutes, pas des heures.


C:\wamp64\www\in>php import/run_route_directions.php
{"event":"start","time":"12:13:14"}
{"event":"start","time":"12:13:14","context":[]}
{"event":"route_start","time":"12:13:14","context":{"route_id":"IDFM:C00001","index":1,"total":2013}}
ca semble bloqué ici


**Proposing query optimization patch**

I analyzed a slow route directions query causing full scans over large stop_times without early route filtering. I'm planning a patch that precomputes trip start/end stops once into a temporary table indexed by route_id, then rewrites per-route queries to use this smaller temp table for faster lookups and aggregations. This should drastically reduce repeated heavy scans and improve performance while fitting sandbox constraints.


Input:
*** Begin Patch
*** Update File: import/build_route_directions.php
@@
-function runBuildRouteDirections(?callable $onProgress = null): array
+function runBuildRouteDirections(?callable $onProgress = null): array
 {
     $config = require __DIR__ . '/config_bdd.php';
     $dsn = sprintf('mysql:host=%s;port=%d;dbname=%s;charset=%s', $config['host'], $config['port'], $config['dbname'], $config['charset']);
     $pdo = new PDO($dsn, $config['user'], $config['password'], [
         PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
     ]);

     reportDir($onProgress, 'start');

     createTablesDirections($pdo);
+
+    reportDir($onProgress, 'extremes_build_start');
+    $tmpTable = buildTripExtremes($pdo);
+    reportDir($onProgress, 'extremes_build_done');

     $routes = fetchRoutesIds($pdo);
     $totalRoutes = count($routes);
     $totalDirections = 0;

     foreach ($routes as $idx => $routeId) {
         $routePos = $idx + 1;
         reportDir($onProgress, 'route_start', ['route_id' => $routeId, 'index' => $routePos, 'total' => $totalRoutes]);
-        $created = buildDirectionsForRoute($pdo, $routeId, $onProgress);
+        $created = buildDirectionsForRoute($pdo, $routeId, $tmpTable, $onProgress);
         $totalDirections += $created;
         reportDir($onProgress, 'route_done', ['route_id' => $routeId, 'index' => $routePos, 'total' => $totalRoutes, 'directions' => $created]);
     }

     reportDir($onProgress, 'done', ['routes' => $totalRoutes, 'directions' => $totalDirections]);
@@
 function fetchRoutesIds(PDO $pdo): array
 {
     $stmt = $pdo->query('SELECT route_id FROM routes');
     return $stmt->fetchAll(PDO::FETCH_COLUMN);
 }

-function buildDirectionsForRoute(PDO $pdo, string $routeId, ?callable $cb = null): int
+function buildDirectionsForRoute(PDO $pdo, string $routeId, string $tmpExtremesTable, ?callable $cb = null): int
 {
-    // Regroupe les extrémités de chaque trip par station (parent_station sinon stop_id)
-    $sql = <<<SQL
-SELECT rd.start_station, rd.end_station, COUNT(*) AS trips
-FROM (
-    SELECT
-        t.trip_id,
-        COALESCE(NULLIF(TRIM(s_start.parent_station), ''), s_start.stop_id) AS start_station,
-        COALESCE(NULLIF(TRIM(s_end.parent_station), ''), s_end.stop_id) AS end_station
-    FROM trips t
-    JOIN (
-        SELECT
-            st.trip_id,
-            SUBSTRING_INDEX(GROUP_CONCAT(st.stop_id ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC SEPARATOR ','), ',', 1) AS first_stop,
-            SUBSTRING_INDEX(GROUP_CONCAT(st.stop_id ORDER BY CAST(st.stop_sequence AS UNSIGNED) DESC SEPARATOR ','), ',', 1) AS last_stop
-        FROM stop_times st
-        GROUP BY st.trip_id
-    ) AS ext ON ext.trip_id = t.trip_id
-    LEFT JOIN stops s_start ON s_start.stop_id = ext.first_stop
-    LEFT JOIN stops s_end ON s_end.stop_id = ext.last_stop
-    WHERE t.route_id = :route_id
-) AS rd
-GROUP BY rd.start_station, rd.end_station
-ORDER BY trips DESC;
-SQL;
-
-    $stmt = $pdo->prepare($sql);
-    $stmt->execute(['route_id' => $routeId]);
-    $directions = $stmt->fetchAll(PDO::FETCH_ASSOC);
+    // Utilise la table temporaire d'extrémités déjà calculée.
+    $stmt = $pdo->prepare("
+        SELECT start_station, end_station, COUNT(*) AS trips
+        FROM {$tmpExtremesTable}
+        WHERE route_id = :route_id
+        GROUP BY start_station, end_station
+        ORDER BY trips DESC
+    ");
+    $stmt->execute(['route_id' => $routeId]);
+    $directions = $stmt->fetchAll(PDO::FETCH_ASSOC);

     $created = 0;
     foreach ($directions as $dir) {
         $dirId = insertDirection($pdo, $routeId, $dir['start_station'], $dir['end_station'], (int) $dir['trips']);
-        insertStopsForDirection($pdo, $routeId, $dir['start_station'], $dir['end_station'], $dirId);
+        insertStopsForDirection($pdo, $routeId, $dir['start_station'], $dir['end_station'], $dirId, $tmpExtremesTable);
         $created++;
         reportDir($cb, 'direction_created', [
             'route_id' => $routeId,
             'start' => $dir['start_station'],
             'end' => $dir['end_station'],
@@
-    return $created;
+    return $created;
+}
+
+function buildTripExtremes(PDO $pdo): string
+{
+    // Table temporaire pour éviter de rescanner stop_times pour chaque route.
+    $tmp = 'tmp_trip_extremes';
+    $pdo->exec("DROP TEMPORARY TABLE IF EXISTS {$tmp}");
+    $pdo->exec("
+        CREATE TEMPORARY TABLE {$tmp} (
+            trip_id VARCHAR(255) NOT NULL,
+            route_id VARCHAR(255) NOT NULL,
+            start_station VARCHAR(255) NOT NULL,
+            end_station VARCHAR(255) NOT NULL,
+            PRIMARY KEY (trip_id)
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
+    ");
+
+    // Remplissage en une passe sur stop_times + trips.
+    $pdo->exec("
+        INSERT INTO {$tmp} (trip_id, route_id, start_station, end_station)
+        SELECT
+            t.trip_id,
+            t.route_id,
+            COALESCE(NULLIF(TRIM(s1.parent_station), ''), s1.stop_id) AS start_station,
+            COALESCE(NULLIF(TRIM(s2.parent_station), ''), s2.stop_id) AS end_station
+        FROM trips t
+        JOIN (
+            SELECT
+                st.trip_id,
+                SUBSTRING_INDEX(GROUP_CONCAT(st.stop_id ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC SEPARATOR ','), ',', 1) AS first_stop,
+                SUBSTRING_INDEX(GROUP_CONCAT(st.stop_id ORDER BY CAST(st.stop_sequence AS UNSIGNED) DESC SEPARATOR ','), ',', 1) AS last_stop
+            FROM stop_times st
+            GROUP BY st.trip_id
+        ) ext ON ext.trip_id = t.trip_id
+        LEFT JOIN stops s1 ON s1.stop_id = ext.first_stop
+        LEFT JOIN stops s2 ON s2.stop_id = ext.last_stop
+    ");
+
+    $pdo->exec("ALTER TABLE {$tmp} ADD INDEX idx_route (route_id), ADD INDEX idx_route_start_end (route_id, start_station, end_station)");
+
+    return $tmp;
 }

 function insertDirection(PDO $pdo, string $routeId, string $startStation, string $endStation, int $trips): int
 {
     $stmt = $pdo->prepare('INSERT INTO route_directions (route_id, start_station, end_station, trips_count) VALUES (:r, :s, :e, :t)');
@@
-function insertStopsForDirection(PDO $pdo, string $routeId, string $startStation, string $endStation, int $directionId): void
+function insertStopsForDirection(PDO $pdo, string $routeId, string $startStation, string $endStation, int $directionId, string $tmpExtremesTable): void
 {
     // Trip représentatif pour cette paire start/end
-    $tripId = pickRepresentativeTrip($pdo, $routeId, $startStation, $endStation);
+    $tripId = pickRepresentativeTrip($pdo, $routeId, $startStation, $endStation, $tmpExtremesTable);
     if ($tripId === null) {
         return;
     }
@@
-function pickRepresentativeTrip(PDO $pdo, string $routeId, string $startStation, string $endStation): ?string
+function pickRepresentativeTrip(PDO $pdo, string $routeId, string $startStation, string $endStation, string $tmpExtremesTable): ?string
 {
-    $sql = <<<SQL
-SELECT t.trip_id
-FROM trips t
-JOIN (
-    SELECT
-        st.trip_id,
-        SUBSTRING_INDEX(GROUP_CONCAT(st.stop_id ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC SEPARATOR ','), ',', 1) AS first_stop,
-        SUBSTRING_INDEX(GROUP_CONCAT(st.stop_id ORDER BY CAST(st.stop_sequence AS UNSIGNED) DESC SEPARATOR ','), ',', 1) AS last_stop
-    FROM stop_times st
-    GROUP BY st.trip_id
-) ext ON ext.trip_id = t.trip_id
-LEFT JOIN stops s1 ON s1.stop_id = ext.first_stop
-LEFT JOIN stops s2 ON s2.stop_id = ext.last_stop
-WHERE t.route_id = :route
-  AND COALESCE(NULLIF(TRIM(s1.parent_station), ''), s1.stop_id) = :start
-  AND COALESCE(NULLIF(TRIM(s2.parent_station), ''), s2.stop_id) = :end
-LIMIT 1;
-SQL;
-    $stmt = $pdo->prepare($sql);
-    $stmt->execute([
-        'route' => $routeId,
-        'start' => $startStation,
-        'end' => $endStation,
-    ]);
-    $tripId = $stmt->fetchColumn();
-    return $tripId !== false ? (string) $tripId : null;
+    $stmt = $pdo->prepare("
+        SELECT trip_id
+        FROM {$tmpExtremesTable}
+        WHERE route_id = :route
+          AND start_station = :start
+          AND end_station = :end
+        LIMIT 1
+    ");
+    $stmt->execute([
+        'route' => $routeId,
+        'start' => $startStation,
+        'end' => $endStation,
+    ]);
+    $tripId = $stmt->fetchColumn();
+    return $tripId !== false ? (string) $tripId : null;
 }
*** End Patch


Output: {"output":"Success. Updated the following files:\nM import/build_route_directions.php\n","metadata":{"exit_code":0,"duration_seconds":0.4}}


Le blocage venait de la requête qui rescannait `stop_times` pour chaque ligne. J’ai optimisé :

- `import/build_route_directions.php` : on calcule une table temporaire des extrémités de trips en une seule passe (`tmp_trip_extremes` avec index sur `route_id`), puis chaque route lit dedans. Le trip représentatif est choisi dans cette table (plus de scan complet par route). Evénements NDJSON ajoutés pour la phase “extremes”.

Pour relancer :
- Local : `php import/run_route_directions.php`
- Prod : `APP_ENV=prod php import/run_route_directions.php`

Attends quelques minutes, mais ça ne devrait plus rester bloqué sur la première route.


C:\wamp64\www\in>php import/run_route_directions.php
{"event":"start","time":"12:15:35"}
{"event":"start","time":"12:15:35","context":[]}
{"event":"extremes_build_start","time":"12:15:35","context":[]}
{"event":"error","time":"12:18:05","message":"SQLSTATE[HY000]: General error: 1114 La table 'tmp_trip_extremes' est pleine"}


**Switching to persistent table for trip extremes**

Planning to replace the temporary table with a persistent InnoDB table dropped before each run to avoid tmp space limits and better handle large dataset inserts. I'll update the buildTripExtremes function accordingly and ensure proper indexing without changing session variables.


Input:
*** Begin Patch
*** Update File: import/build_route_directions.php
@@
-function buildTripExtremes(PDO $pdo): string
-{
-    // Table temporaire pour éviter de rescanner stop_times pour chaque route.
-    $tmp = 'tmp_trip_extremes';
-    $pdo->exec("DROP TEMPORARY TABLE IF EXISTS {$tmp}");
-    $pdo->exec("
-        CREATE TEMPORARY TABLE {$tmp} (
-            trip_id VARCHAR(255) NOT NULL,
-            route_id VARCHAR(255) NOT NULL,
-            start_station VARCHAR(255) NOT NULL,
-            end_station VARCHAR(255) NOT NULL,
-            PRIMARY KEY (trip_id)
-        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
-    ");
-
-    // Remplissage en une passe sur stop_times + trips.
-    $pdo->exec("
-        INSERT INTO {$tmp} (trip_id, route_id, start_station, end_station)
-        SELECT
-            t.trip_id,
-            t.route_id,
-            COALESCE(NULLIF(TRIM(s1.parent_station), ''), s1.stop_id) AS start_station,
-            COALESCE(NULLIF(TRIM(s2.parent_station), ''), s2.stop_id) AS end_station
-        FROM trips t
-        JOIN (
-            SELECT
-                st.trip_id,
-                SUBSTRING_INDEX(GROUP_CONCAT(st.stop_id ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC SEPARATOR ','), ',', 1) AS first_stop,
-                SUBSTRING_INDEX(GROUP_CONCAT(st.stop_id ORDER BY CAST(st.stop_sequence AS UNSIGNED) DESC SEPARATOR ','), ',', 1) AS last_stop
-            FROM stop_times st
-            GROUP BY st.trip_id
-        ) ext ON ext.trip_id = t.trip_id
-        LEFT JOIN stops s1 ON s1.stop_id = ext.first_stop
-        LEFT JOIN stops s2 ON s2.stop_id = ext.last_stop
-    ");
-
-    $pdo->exec("ALTER TABLE {$tmp} ADD INDEX idx_route (route_id), ADD INDEX idx_route_start_end (route_id, start_station, end_station)");
-
-    return $tmp;
-}
+function buildTripExtremes(PDO $pdo): string
+{
+    // Table persistante (pas temporaire) pour éviter la saturation du tmpdir.
+    $tmp = 'route_tmp_trip_extremes';
+    $pdo->exec("DROP TABLE IF EXISTS {$tmp}");
+    $pdo->exec("
+        CREATE TABLE {$tmp} (
+            trip_id VARCHAR(255) NOT NULL,
+            route_id VARCHAR(255) NOT NULL,
+            start_station VARCHAR(255) NOT NULL,
+            end_station VARCHAR(255) NOT NULL,
+            PRIMARY KEY (trip_id),
+            KEY idx_route (route_id),
+            KEY idx_route_start_end (route_id, start_station, end_station)
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
+    ");
+
+    // Remplissage en une passe sur stop_times + trips.
+    $pdo->exec("
+        INSERT INTO {$tmp} (trip_id, route_id, start_station, end_station)
+        SELECT
+            t.trip_id,
+            t.route_id,
+            COALESCE(NULLIF(TRIM(s1.parent_station), ''), s1.stop_id) AS start_station,
+            COALESCE(NULLIF(TRIM(s2.parent_station), ''), s2.stop_id) AS end_station
+        FROM trips t
+        JOIN (
+            SELECT
+                st.trip_id,
+                SUBSTRING_INDEX(GROUP_CONCAT(st.stop_id ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC SEPARATOR ','), ',', 1) AS first_stop,
+                SUBSTRING_INDEX(GROUP_CONCAT(st.stop_id ORDER BY CAST(st.stop_sequence AS UNSIGNED) DESC SEPARATOR ','), ',', 1) AS last_stop
+            FROM stop_times st
+            GROUP BY st.trip_id
+        ) ext ON ext.trip_id = t.trip_id
+        LEFT JOIN stops s1 ON s1.stop_id = ext.first_stop
+        LEFT JOIN stops s2 ON s2.stop_id = ext.last_stop
+    ");
+
+    return $tmp;
+}
*** End Patch


Output: {"output":"Success. Updated the following files:\nM import/build_route_directions.php\n","metadata":{"exit_code":0,"duration_seconds":0.4}}


Le plantage venait de la table temporaire saturant le tmpdir MySQL. J’ai modifié `import/build_route_directions.php` pour utiliser une table persistante `route_tmp_trip_extremes` (InnoDB) au lieu d’une table temporaire, avec drop/recreate à chaque run.

Relance en CLI :
- Local : `php import/run_route_directions.php`
- Prod : `APP_ENV=prod php import/run_route_directions.php`

Ça ne devrait plus planter sur “table pleine”; laisse-lui le temps de remplir `route_tmp_trip_extremes` avant de passer route par route.


C:\wamp64\www\in>php import/run_route_directions.php
{"event":"start","time":"12:19:29"}
{"event":"start","time":"12:19:29","context":[]}
{"event":"extremes_build_start","time":"12:19:30","context":[]}
{"event":"error","time":"12:22:14","message":"SQLSTATE[HY000]: General error: 2006 MySQL server has gone away"}


**Refactoring trip extremes computation**

I'm replacing heavy GROUP_CONCAT logic with a multi-step approach using MIN/MAX on stop sequences joined with stop_ids to identify start/end stations per trip, creating a temp table via aggregated subqueries to avoid timeouts and server disconnects on large datasets. Next, I'll update the buildTripExtremes function and related files to implement this more efficient SQL flow.


Input:
*** Begin Patch
*** Update File: import/build_route_directions.php
@@
 function buildTripExtremes(PDO $pdo): string
 {
     // Table persistante (pas temporaire) pour éviter la saturation du tmpdir.
     $tmp = 'route_tmp_trip_extremes';
     $pdo->exec("DROP TABLE IF EXISTS {$tmp}");
@@
     // Remplissage en une passe sur stop_times + trips.
-    $pdo->exec("
-        INSERT INTO {$tmp} (trip_id, route_id, start_station, end_station)
-        SELECT
-            t.trip_id,
-            t.route_id,
-            COALESCE(NULLIF(TRIM(s1.parent_station), ''), s1.stop_id) AS start_station,
-            COALESCE(NULLIF(TRIM(s2.parent_station), ''), s2.stop_id) AS end_station
-        FROM trips t
-        JOIN (
-            SELECT
-                st.trip_id,
-                SUBSTRING_INDEX(GROUP_CONCAT(st.stop_id ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC SEPARATOR ','), ',', 1) AS first_stop,
-                SUBSTRING_INDEX(GROUP_CONCAT(st.stop_id ORDER BY CAST(st.stop_sequence AS UNSIGNED) DESC SEPARATOR ','), ',', 1) AS last_stop
-            FROM stop_times st
-            GROUP BY st.trip_id
-        ) ext ON ext.trip_id = t.trip_id
-        LEFT JOIN stops s1 ON s1.stop_id = ext.first_stop
-        LEFT JOIN stops s2 ON s2.stop_id = ext.last_stop
-    ");
+    $pdo->exec("
+        INSERT INTO {$tmp} (trip_id, route_id, start_station, end_station)
+        SELECT
+            t.trip_id,
+            t.route_id,
+            COALESCE(NULLIF(TRIM(s_start.parent_station), ''), s_start.stop_id) AS start_station,
+            COALESCE(NULLIF(TRIM(s_end.parent_station), ''), s_end.stop_id) AS end_station
+        FROM trips t
+        JOIN (
+            SELECT st.trip_id, MIN(st.stop_id) AS start_stop_id
+            FROM stop_times st
+            JOIN (
+                SELECT trip_id, MIN(CAST(stop_sequence AS UNSIGNED)) AS seq_start
+                FROM stop_times
+                GROUP BY trip_id
+            ) seq ON seq.trip_id = st.trip_id AND CAST(st.stop_sequence AS UNSIGNED) = seq.seq_start
+            GROUP BY st.trip_id
+        ) start_info ON start_info.trip_id = t.trip_id
+        JOIN (
+            SELECT st.trip_id, MIN(st.stop_id) AS end_stop_id
+            FROM stop_times st
+            JOIN (
+                SELECT trip_id, MAX(CAST(stop_sequence AS UNSIGNED)) AS seq_end
+                FROM stop_times
+                GROUP BY trip_id
+            ) seq ON seq.trip_id = st.trip_id AND CAST(st.stop_sequence AS UNSIGNED) = seq.seq_end
+            GROUP BY st.trip_id
+        ) end_info ON end_info.trip_id = t.trip_id
+        LEFT JOIN stops s_start ON s_start.stop_id = start_info.start_stop_id
+        LEFT JOIN stops s_end ON s_end.stop_id = end_info.end_stop_id
+    ");

     return $tmp;
 }
*** End Patch


Output: {"output":"Success. Updated the following files:\nM import/build_route_directions.php\n","metadata":{"exit_code":0,"duration_seconds":0.4}}


Summary: auto


J’ai remplacé la construction des extrémités (qui utilisait de gros GROUP_CONCAT) par un calcul basé sur min/max `stop_sequence` et une seule insertion en InnoDB, pour éviter le “server has gone away”.

- `import/build_route_directions.php` : `buildTripExtremes` utilise maintenant les séquences min/max et sélectionne un stop_id stable, sans GROUP_CONCAT volumineux.

Relance en CLI :
- Local : `php import/run_route_directions.php`
- Prod : `APP_ENV=prod php import/run_route_directions.php`

Laisse tourner quelques minutes ; ça devrait passer sans saturer le serveur.


C:\wamp64\www\in>php import/run_route_directions.php
{"event":"start","time":"12:23:38"}
{"event":"error","time":"12:23:42","message":"SQLSTATE[HY000] [2002] Aucune connexion na pu être établie car lordinateur cible la expressément refusée"}


**Explaining MySQL connection error**

I'm noting that the MySQL connection refused error likely stems from host or environment misconfiguration and advising to verify the database host and set production environment variables accordingly, while providing troubleshooting steps.


La connexion MySQL est refusée (“Aucune connexion n’a pu être établie…”). À ce stade, le code tourne mais ne peut pas se connecter à la base. Vérifie :

1) Que tu lances avec la bonne cible :
   - Prod : `APP_ENV=prod php import/run_route_directions.php` (utilise `astrageincssp.mysql.db`, user/mdp prod).
   - Local : `php import/run_route_directions.php` (utilise `localhost`, user root).

2) Que MySQL accepte bien la connexion sur le host/port :
   - Prod : firewall/OVH, port 3306 ouvert et l’user autorisé depuis l’IP du serveur.
   - Local : WAMP MySQL est bien démarré, port 3306 libre.

3) Test rapide de connectivité :
   - Prod : `APP_ENV=prod php -r "new PDO('mysql:host=astrageincssp.mysql.db;port=3306;dbname=astrageincssp;charset=utf8mb4','astrageincssp','10Melodie2606'); echo 'OK';"`
   - Local : `php -r "new PDO('mysql:host=localhost;port=3306;dbname=inastragecssp;charset=utf8mb4','root',''); echo 'OK';"`

Si le test échoue côté prod, il faut autoriser l’IP du serveur sur le compte MySQL OVH ou corriger l’hôte/port. Une fois la connexion OK, relance `run_route_directions.php`.


**Requesting clarification on input**

The user sent only "}", which seems accidental; I'll ask for clarification to confirm their needs before proceeding.


Je pense que ton message est incomplet. As-tu pu tester la connexion PDO (commande de test) côté prod/local ? Si tu as un nouveau message d’erreur ou si tout est OK, dis-moi pour qu’on relance `run_route_directions.php`.


C:\wamp64\www\in>php -r "new PDO('mysql:host=localhost;port=3306;dbname=inastragecssp;charset=utf8mb4','root',''); echo 'OK';"

Fatal error: Uncaught PDOException: SQLSTATE[HY000] [2002] Aucune connexion na pu être établie car lordinateur cible la expressément refusée in Command line code on line 1

PDOException: SQLSTATE[HY000] [2002] Aucune connexion na pu être établie car lordinateur cible la expressément refusée in Command line code on line 1

Call Stack:
    0.0001     473696   1. {main}() Command line code:0
    0.0001     474024   2. PDO->__construct($dsn = 'mysql:host=localhost;port=3306;dbname=inastragecssp;charset=utf8mb4', $username = 'root', $password = '[Sensitive Parameter]') Command line code:1


**Advising on MySQL connection issues**

MySQL likely isn't running—advise starting WAMP's MySQL/MariaDB service via tray icon or services.msc. Suggest checking if WAMP uses port 3307 instead of 3306 and updating the config accordingly. Also remind to add the root password if set, then retry the PDO connection and routing script.


La connexion est refusée parce que MySQL WAMP ne tourne pas (ou pas sur 3306).

Ce que tu peux faire côté local :
- Vérifie dans le tray Wamp que le service MySQL/MariaDB est démarré. Sinon démarre-le (ou via `services.msc` → `wampmysqld` / `mysql`).
- Confirme le port utilisé par Wamp : souvent 3306, parfois 3307. Si c’est 3307, mets `port => 3307` dans `import/config_bdd.php` pour le bloc local.
- Si tu as mis un mot de passe root, ajoute-le dans la config.
- Re-teste la connexion : `php -r "new PDO('mysql:host=127.0.0.1;port=3306;dbname=inastragecssp;charset=utf8mb4','root',''); echo 'OK';"` (adapte le port et le mdp).
- Une fois OK, relance `php import/run_route_directions.php` (ou `APP_ENV=prod ...` en prod).

Dis-moi le port et l’état du service si ça bloque encore.


wamp avait planté.
j'ai relancé mai toujours
C:\wamp64\www\in>php import/run_route_directions.php
{"event":"start","time":"12:27:54"}
{"event":"start","time":"12:27:55","context":[]}
{"event":"extremes_build_start","time":"12:27:55","context":[]}
{"event":"error","time":"12:30:39","message":"SQLSTATE[HY000]: General error: 1114 La table 'C:\\windows\\TEMP\\#sql2f98_8_1' est pleine"}


**Refactoring trip extremes with iterative per-trip queries**

I'm redesigning trip extremes calculation to avoid heavy global temp tables by iterating trips in PHP, querying min/max stops per trip with indexed limit queries, and batch committing results. This reduces temp space and group-by load while trading off runtime for stability and scalability. Next, I'll patch the buildTripExtremes function and update dependent code accordingly.


Input:
*** Begin Patch
*** Update File: import/build_route_directions.php
@@
     reportDir($onProgress, 'extremes_build_start');
     $tmpTable = buildTripExtremes($pdo);
     reportDir($onProgress, 'extremes_build_done');
@@
 function buildTripExtremes(PDO $pdo): string
 {
-    // Table persistante (pas temporaire) pour éviter la saturation du tmpdir.
+    // Table persistante (pas temporaire) pour éviter la saturation du tmpdir.
     $tmp = 'route_tmp_trip_extremes';
     $pdo->exec("DROP TABLE IF EXISTS {$tmp}");
     $pdo->exec("
         CREATE TABLE {$tmp} (
             trip_id VARCHAR(255) NOT NULL,
@@
             KEY idx_route_start_end (route_id, start_station, end_station)
         ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
     ");

-    // Remplissage en une passe sur stop_times + trips.
-    $pdo->exec("
-        INSERT INTO {$tmp} (trip_id, route_id, start_station, end_station)
-        SELECT
-            t.trip_id,
-            t.route_id,
-            COALESCE(NULLIF(TRIM(s_start.parent_station), ''), s_start.stop_id) AS start_station,
-            COALESCE(NULLIF(TRIM(s_end.parent_station), ''), s_end.stop_id) AS end_station
-        FROM trips t
-        JOIN (
-            SELECT st.trip_id, MIN(st.stop_id) AS start_stop_id
-            FROM stop_times st
-            JOIN (
-                SELECT trip_id, MIN(CAST(stop_sequence AS UNSIGNED)) AS seq_start
-                FROM stop_times
-                GROUP BY trip_id
-            ) seq ON seq.trip_id = st.trip_id AND CAST(st.stop_sequence AS UNSIGNED) = seq.seq_start
-            GROUP BY st.trip_id
-        ) start_info ON start_info.trip_id = t.trip_id
-        JOIN (
-            SELECT st.trip_id, MIN(st.stop_id) AS end_stop_id
-            FROM stop_times st
-            JOIN (
-                SELECT trip_id, MAX(CAST(stop_sequence AS UNSIGNED)) AS seq_end
-                FROM stop_times
-                GROUP BY trip_id
-            ) seq ON seq.trip_id = st.trip_id AND CAST(st.stop_sequence AS UNSIGNED) = seq.seq_end
-            GROUP BY st.trip_id
-        ) end_info ON end_info.trip_id = t.trip_id
-        LEFT JOIN stops s_start ON s_start.stop_id = start_info.start_stop_id
-        LEFT JOIN stops s_end ON s_end.stop_id = end_info.end_stop_id
-    ");
+    // Remplissage itératif pour éviter les tables temporaires volumineuses.
+    $tripStmt = $pdo->query('SELECT trip_id, route_id FROM trips');
+    $firstStmt = $pdo->prepare('
+        SELECT s.stop_id, s.parent_station
+        FROM stop_times st
+        JOIN stops s ON s.stop_id = st.stop_id
+        WHERE st.trip_id = :trip
+        ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC
+        LIMIT 1
+    ');
+    $lastStmt = $pdo->prepare('
+        SELECT s.stop_id, s.parent_station
+        FROM stop_times st
+        JOIN stops s ON s.stop_id = st.stop_id
+        WHERE st.trip_id = :trip
+        ORDER BY CAST(st.stop_sequence AS UNSIGNED) DESC
+        LIMIT 1
+    ');
+    $insertStmt = $pdo->prepare("
+        INSERT INTO {$tmp} (trip_id, route_id, start_station, end_station)
+        VALUES (:trip_id, :route_id, :start_station, :end_station)
+    ");
+
+    $pdo->beginTransaction();
+    $count = 0;
+    while ($row = $tripStmt->fetch(PDO::FETCH_ASSOC)) {
+        $tripId = $row['trip_id'];
+        $routeId = $row['route_id'];
+
+        $firstStmt->execute(['trip' => $tripId]);
+        $first = $firstStmt->fetch(PDO::FETCH_ASSOC);
+        $lastStmt->execute(['trip' => $tripId]);
+        $last = $lastStmt->fetch(PDO::FETCH_ASSOC);
+
+        if (!$first || !$last) {
+            continue;
+        }
+
+        $startStation = $first['parent_station'];
+        if ($startStation === null || trim($startStation) === '') {
+            $startStation = $first['stop_id'];
+        }
+        $endStation = $last['parent_station'];
+        if ($endStation === null || trim($endStation) === '') {
+            $endStation = $last['stop_id'];
+        }
+
+        $insertStmt->execute([
+            'trip_id' => $tripId,
+            'route_id' => $routeId,
+            'start_station' => $startStation,
+            'end_station' => $endStation,
+        ]);
+
+        $count++;
+        if (($count % 2000) === 0) {
+            $pdo->commit();
+            $pdo->beginTransaction();
+        }
+    }
+    $pdo->commit();

     return $tmp;
 }
*** End Patch


Output: {"output":"Success. Updated the following files:\nM import/build_route_directions.php\n","metadata":{"exit_code":0,"duration_seconds":0.4}}


J’ai réécrit la phase “extremes” pour éviter les grosses tables temporaires : on itère sur chaque trip et on récupère ses premiers/derniers stops via des requêtes indexées (ORDER BY stop_sequence LIMIT 1). Les extremities sont insérées au fil de l’eau dans `route_tmp_trip_extremes` avec commits tous les 2000 trips.

Relance en CLI (MySQL bien démarré) :
- Local : `php import/run_route_directions.php`
- Prod : `APP_ENV=prod php import/run_route_directions.php`

Cette approche est plus lente mais n’utilise plus de grosse table temporaire ni de GROUP_CONCAT, donc pas d’erreur “table pleine”. Surveille quand même que MySQL reste actif pendant l’exécution.


C:\wamp64\www\in>php import/run_route_directions.php
{"event":"start","time":"12:36:29"}
{"event":"start","time":"12:36:29","context":[]}
{"event":"extremes_build_start","time":"12:36:29","context":[]}
{"event":"error","time":"12:40:24","message":"SQLSTATE[HY000]: General error: 1114 La table 'route_tmp_trip_extremes' est pleine"}
ca plante encore


**Planning per-route temporary tables**

The current global temporary table approach causes "table full" errors likely due to large temp tables on Windows InnoDB; switching to per-route temporary tables with limited data should avoid oversized temp tables and disk limits. I'll revise the logic to build directions route-by-route using filtered stop_times and trips queries with temporary tables created/dropped per route.


Get-Content import\build_route_directions.php | findstr /n "function runBuildRouteDirections"


Output:
Exit code: 0
Wall time: 1.1 seconds
Output:
13:function runBuildRouteDirections(?callable $onProgress = null): array
45:function createTablesDirections(PDO $pdo): void
83:function fetchRoutesIds(PDO $pdo): array
89:function buildDirectionsForRoute(PDO $pdo, string $routeId, string $tmpExtremesTable, ?callable $cb = null): int
118:function buildTripExtremes(PDO $pdo): string
200:function insertDirection(PDO $pdo, string $routeId, string $startStation, string $endStation, int $trips): int
212:function insertStopsForDirection(PDO $pdo, string $routeId, string $startStation, string $endStation, int $directionId, string $tmpExtremesTable): void
259:function pickRepresentativeTrip(PDO $pdo, string $routeId, string $startStation, string $endStation, string $tmpExtremesTable): ?string
278:function reportDir(?callable $cb, string $event, array $context = []): void
287:    runBuildRouteDirections(function (string $event, array $ctx) {


Output:
Exit code: 0
Wall time: 1 seconds
Output:
<?php

declare(strict_types=1);

/**
 * Construit des directions par ligne Çÿ partir des extrÇ¸mitÇ¸s des trips.
 * On utilise parent_station pour grouper les quais d'une mÇ¦me station.
 * Tables crÇ¸Ç¸es :
 * - route_directions (route_id, start_station, end_station, trips_count)
 * - route_direction_stops (stop_id, stop_name, stop_lat, stop_lon, stop_sequence)
 */

function runBuildRouteDirections(?callable $onProgress = null): array
{
    $config = require __DIR__ . '/config_bdd.php';
    $dsn = sprintf('mysql:host=%s;port=%d;dbname=%s;charset=%s', $config['host'], $config['port'], $config['dbname'], $config['charset']);
    $pdo = new PDO($dsn, $config['user'], $config['password'], [
        PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
    ]);

    reportDir($onProgress, 'start');

    createTablesDirections($pdo);

    reportDir($onProgress, 'extremes_build_start');
    $tmpTable = buildTripExtremes($pdo);
    reportDir($onProgress, 'extremes_build_done');

    $routes = fetchRoutesIds($pdo);
    $totalRoutes = count($routes);
    $totalDirections = 0;

    foreach ($routes as $idx => $routeId) {
        $routePos = $idx + 1;
        reportDir($onProgress, 'route_start', ['route_id' => $routeId, 'index' => $routePos, 'total' => $totalRoutes]);
        $created = buildDirectionsForRoute($pdo, $routeId, $tmpTable, $onProgress);
        $totalDirections += $created;
        reportDir($onProgress, 'route_done', ['route_id' => $routeId, 'index' => $routePos, 'total' => $totalRoutes, 'directions' => $created]);
    }

    reportDir($onProgress, 'done', ['routes' => $totalRoutes, 'directions' => $totalDirections]);
    return ['routes' => $totalRoutes, 'directions' => $totalDirections];
}

function createTablesDirections(PDO $pdo): void
{
    $pdo->exec('DROP TABLE IF EXISTS route_direction_stops');
    $pdo->exec('DROP TABLE IF EXISTS route_directions');

    $pdo->exec(<<<SQL
CREATE TABLE route_directions (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  route_id VARCHAR(255) NOT NULL,
  start_station VARCHAR(255) NOT NULL,
  end_station VARCHAR(255) NOT NULL,
  trips_count INT UNSIGNED NOT NULL DEFAULT 0,
  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
  updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  PRIMARY KEY (id),
  UNIQUE KEY uniq_route_direction (route_id, start_station, end_station)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
SQL);

    $pdo->exec(<<<SQL
CREATE TABLE route_direction_stops (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  route_direction_id BIGINT UNSIGNED NOT NULL,
  stop_id VARCHAR(255) NOT NULL,
  stop_name TEXT,
  stop_lat DOUBLE NULL,
  stop_lon DOUBLE NULL,
  stop_sequence INT NULL,
  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
  updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  PRIMARY KEY (id),
  UNIQUE KEY uniq_dir_stop (route_direction_id, stop_id),
  KEY idx_dir_seq (route_direction_id, stop_sequence),
  CONSTRAINT fk_dir_stop_dir FOREIGN KEY (route_direction_id) REFERENCES route_directions(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
SQL);
}

function fetchRoutesIds(PDO $pdo): array
{
    $stmt = $pdo->query('SELECT route_id FROM routes');
    return $stmt->fetchAll(PDO::FETCH_COLUMN);
}

function buildDirectionsForRoute(PDO $pdo, string $routeId, string $tmpExtremesTable, ?callable $cb = null): int
{
    // Utilise la table temporaire d'extrÇ¸mitÇ¸s dÇ¸jÇÿ calculÇ¸e.
    $stmt = $pdo->prepare("
        SELECT start_station, end_station, COUNT(*) AS trips
        FROM {$tmpExtremesTable}
        WHERE route_id = :route_id
        GROUP BY start_station, end_station
        ORDER BY trips DESC
    ");
    $stmt->execute(['route_id' => $routeId]);
    $directions = $stmt->fetchAll(PDO::FETCH_ASSOC);

    $created = 0;
    foreach ($directions as $dir) {
        $dirId = insertDirection($pdo, $routeId, $dir['start_station'], $dir['end_station'], (int) $dir['trips']);
        insertStopsForDirection($pdo, $routeId, $dir['start_station'], $dir['end_station'], $dirId, $tmpExtremesTable);
        $created++;
        reportDir($cb, 'direction_created', [
            'route_id' => $routeId,
            'start' => $dir['start_station'],
            'end' => $dir['end_station'],
            'trips' => (int) $dir['trips'],
        ]);
    }

    return $created;
}

function buildTripExtremes(PDO $pdo): string
{
    // Table persistante (pas temporaire) pour Ç¸viter la saturation du tmpdir.
    $tmp = 'route_tmp_trip_extremes';
    $pdo->exec("DROP TABLE IF EXISTS {$tmp}");
    $pdo->exec("
        CREATE TABLE {$tmp} (
            trip_id VARCHAR(255) NOT NULL,
            route_id VARCHAR(255) NOT NULL,
            start_station VARCHAR(255) NOT NULL,
            end_station VARCHAR(255) NOT NULL,
            PRIMARY KEY (trip_id),
            KEY idx_route (route_id),
            KEY idx_route_start_end (route_id, start_station, end_station)
        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
    ");

    // Remplissage itÇ¸ratif pour Ç¸viter les tables temporaires volumineuses.
    $tripStmt = $pdo->query('SELECT trip_id, route_id FROM trips');
    $firstStmt = $pdo->prepare('
        SELECT s.stop_id, s.parent_station
        FROM stop_times st
        JOIN stops s ON s.stop_id = st.stop_id
        WHERE st.trip_id = :trip
        ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC
        LIMIT 1
    ');
    $lastStmt = $pdo->prepare('
        SELECT s.stop_id, s.parent_station
        FROM stop_times st
        JOIN stops s ON s.stop_id = st.stop_id
        WHERE st.trip_id = :trip
        ORDER BY CAST(st.stop_sequence AS UNSIGNED) DESC
        LIMIT 1
    ');
    $insertStmt = $pdo->prepare("
        INSERT INTO {$tmp} (trip_id, route_id, start_station, end_station)
        VALUES (:trip_id, :route_id, :start_station, :end_station)
    ");

    $pdo->beginTransaction();
    $count = 0;
    while ($row = $tripStmt->fetch(PDO::FETCH_ASSOC)) {
        $tripId = $row['trip_id'];
        $routeId = $row['route_id'];

        $firstStmt->execute(['trip' => $tripId]);
        $first = $firstStmt->fetch(PDO::FETCH_ASSOC);
        $lastStmt->execute(['trip' => $tripId]);
        $last = $lastStmt->fetch(PDO::FETCH_ASSOC);

        if (!$first || !$last) {
            continue;
        }

        $startStation = $first['parent_station'];
        if ($startStation === null || trim($startStation) === '') {
            $startStation = $first['stop_id'];
        }
        $endStation = $last['parent_station'];
        if ($endStation === null || trim($endStation) === '') {
            $endStation = $last['stop_id'];
        }

        $insertStmt->execute([
            'trip_id' => $tripId,
            'route_id' => $routeId,
            'start_station' => $startStation,
            'end_station' => $endStation,
        ]);

        $count++;
        if (($count % 2000) === 0) {
            $pdo->commit();
            $pdo->beginTransaction();
        }
    }
    $pdo->commit();

    return $tmp;
}

function insertDirection(PDO $pdo, string $routeId, string $startStation, string $endStation, int $trips): int
{
    $stmt = $pdo->prepare('INSERT INTO route_directions (route_id, start_station, end_station, trips_count) VALUES (:r, :s, :e, :t)');
    $stmt->execute([
        'r' => $routeId,
        's' => $startStation,
        'e' => $endStation,
        't' => $trips,
    ]);
    return (int) $pdo->lastInsertId();
}

function insertStopsForDirection(PDO $pdo, string $routeId, string $startStation, string $endStation, int $directionId, string $tmpExtremesTable): void
{
    // Trip reprÇ¸sentatif pour cette paire start/end
    $tripId = pickRepresentativeTrip($pdo, $routeId, $startStation, $endStation, $tmpExtremesTable);
    if ($tripId === null) {
        return;
    }

    $stmt = $pdo->prepare('
        SELECT st.stop_id, st.stop_sequence, s.stop_name, s.parent_station, s.stop_lat, s.stop_lon
        FROM stop_times st
        JOIN stops s ON s.stop_id = st.stop_id
        WHERE st.trip_id = :trip
        ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC
    ');
    $stmt->execute(['trip' => $tripId]);
    $rows = $stmt->fetchAll(PDO::FETCH_ASSOC);

    // On regroupe par station (parent_station sinon stop_id) pour Ç¸viter doublons quai.
    $seen = [];
    $sequence = 1;
    $insert = $pdo->prepare('
        INSERT INTO route_direction_stops (route_direction_id, stop_id, stop_name, stop_lat, stop_lon, stop_sequence)
        VALUES (:dir, :stop_id, :name, :lat, :lon, :seq)
    ');

    foreach ($rows as $row) {
        $stationId = $row['parent_station'];
        if ($stationId === null || trim($stationId) === '') {
            $stationId = $row['stop_id'];
        }
        if (isset($seen[$stationId])) {
            continue;
        }
        $seen[$stationId] = true;
        $insert->execute([
            'dir' => $directionId,
            'stop_id' => $stationId,
            'name' => $row['stop_name'],
            'lat' => $row['stop_lat'] !== null ? (float) $row['stop_lat'] : null,
            'lon' => $row['stop_lon'] !== null ? (float) $row['stop_lon'] : null,
            'seq' => $sequence,
        ]);
        $sequence++;
    }
}

function pickRepresentativeTrip(PDO $pdo, string $routeId, string $startStation, string $endStation, string $tmpExtremesTable): ?string
{
    $stmt = $pdo->prepare("
        SELECT trip_id
        FROM {$tmpExtremesTable}
        WHERE route_id = :route
          AND start_station = :start
          AND end_station = :end
        LIMIT 1
    ");
    $stmt->execute([
        'route' => $routeId,
        'start' => $startStation,
        'end' => $endStation,
    ]);
    $tripId = $stmt->fetchColumn();
    return $tripId !== false ? (string) $tripId : null;
}

function reportDir(?callable $cb, string $event, array $context = []): void
{
    if ($cb) {
        $cb($event, $context);
    }
}

// CLI direct
if (php_sapi_name() === 'cli' && realpath($_SERVER['SCRIPT_FILENAME'] ?? '') === __FILE__) {
    runBuildRouteDirections(function (string $event, array $ctx) {
        echo '[' . $event . '] ' . json_encode($ctx) . PHP_EOL;
    });
}


**Planning per-route inline extremes computation**

Decided to remove global extremes functions and instead compute extremes per route inside buildDirectionsForRoute using a temporary InnoDB table cleared each route. This avoids large temp table errors by handling manageable subsets iteratively, simplifying logic and improving stability. Next step is to rewrite the file with this new approach, deleting the old code and implementing this per-route logic from scratch.


Input:
*** Begin Patch
*** Delete File: import/build_route_directions.php
*** End Patch


Output: {"output":"Success. Updated the following files:\nD import/build_route_directions.php\n","metadata":{"exit_code":0,"duration_seconds":0.4}}


Summary: auto


Input:
*** Begin Patch
*** Add File: import/build_route_directions.php
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Construit des directions par ligne à partir des extrémités des trips.
+ * On regroupe par station (parent_station si présent) pour éviter les doublons de quais.
+ * Tables créées :
+ * - route_directions (route_id, start_station, end_station, trips_count)
+ * - route_direction_stops (stop_id, stop_name, stop_lat, stop_lon, stop_sequence)
+ *
+ * Optimisation : on traite route par route, en calculant les extrémités des trips
+ * via des requêtes indexées (stop_times.trip_id + stop_sequence) pour éviter les
+ * tables temporaires gigantesques.
+ */
+
+function runBuildRouteDirections(?callable $onProgress = null): array
+{
+    $config = require __DIR__ . '/config_bdd.php';
+    $dsn = sprintf('mysql:host=%s;port=%d;dbname=%s;charset=%s', $config['host'], $config['port'], $config['dbname'], $config['charset']);
+    $pdo = new PDO($dsn, $config['user'], $config['password'], [
+        PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+    ]);
+
+    reportDir($onProgress, 'start');
+
+    createTablesDirections($pdo);
+
+    $routes = fetchRoutesIds($pdo);
+    $totalRoutes = count($routes);
+    $totalDirections = 0;
+
+    foreach ($routes as $idx => $routeId) {
+        $routePos = $idx + 1;
+        reportDir($onProgress, 'route_start', ['route_id' => $routeId, 'index' => $routePos, 'total' => $totalRoutes]);
+        $created = buildDirectionsForRoute($pdo, $routeId, $onProgress);
+        $totalDirections += $created;
+        reportDir($onProgress, 'route_done', ['route_id' => $routeId, 'index' => $routePos, 'total' => $totalRoutes, 'directions' => $created]);
+    }
+
+    reportDir($onProgress, 'done', ['routes' => $totalRoutes, 'directions' => $totalDirections]);
+    return ['routes' => $totalRoutes, 'directions' => $totalDirections];
+}
+
+function createTablesDirections(PDO $pdo): void
+{
+    $pdo->exec('DROP TABLE IF EXISTS route_direction_stops');
+    $pdo->exec('DROP TABLE IF EXISTS route_directions');
+
+    $pdo->exec(<<<SQL
+CREATE TABLE route_directions (
+  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  route_id VARCHAR(255) NOT NULL,
+  start_station VARCHAR(255) NOT NULL,
+  end_station VARCHAR(255) NOT NULL,
+  trips_count INT UNSIGNED NOT NULL DEFAULT 0,
+  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (id),
+  UNIQUE KEY uniq_route_direction (route_id, start_station, end_station)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+SQL);
+
+    $pdo->exec(<<<SQL
+CREATE TABLE route_direction_stops (
+  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  route_direction_id BIGINT UNSIGNED NOT NULL,
+  stop_id VARCHAR(255) NOT NULL,
+  stop_name TEXT,
+  stop_lat DOUBLE NULL,
+  stop_lon DOUBLE NULL,
+  stop_sequence INT NULL,
+  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (id),
+  UNIQUE KEY uniq_dir_stop (route_direction_id, stop_id),
+  KEY idx_dir_seq (route_direction_id, stop_sequence),
+  CONSTRAINT fk_dir_stop_dir FOREIGN KEY (route_direction_id) REFERENCES route_directions(id) ON DELETE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+SQL);
+}
+
+function fetchRoutesIds(PDO $pdo): array
+{
+    $stmt = $pdo->query('SELECT route_id FROM routes');
+    return $stmt->fetchAll(PDO::FETCH_COLUMN);
+}
+
+function buildDirectionsForRoute(PDO $pdo, string $routeId, ?callable $cb = null): int
+{
+    // Table temporaire limitée au scope de la route
+    $pdo->exec('DROP TEMPORARY TABLE IF EXISTS tmp_route_extremes');
+    $pdo->exec('
+        CREATE TEMPORARY TABLE tmp_route_extremes (
+            trip_id VARCHAR(255) NOT NULL,
+            start_station VARCHAR(255) NOT NULL,
+            end_station VARCHAR(255) NOT NULL,
+            PRIMARY KEY (trip_id),
+            KEY idx_start_end (start_station, end_station)
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
+    ');
+
+    // Prépare les requêtes pour récupérer premier et dernier stop d'un trip
+    $tripStmt = $pdo->prepare('SELECT trip_id FROM trips WHERE route_id = :route');
+    $firstStmt = $pdo->prepare('
+        SELECT s.stop_id, s.parent_station
+        FROM stop_times st
+        JOIN stops s ON s.stop_id = st.stop_id
+        WHERE st.trip_id = :trip
+        ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC
+        LIMIT 1
+    ');
+    $lastStmt = $pdo->prepare('
+        SELECT s.stop_id, s.parent_station
+        FROM stop_times st
+        JOIN stops s ON s.stop_id = st.stop_id
+        WHERE st.trip_id = :trip
+        ORDER BY CAST(st.stop_sequence AS UNSIGNED) DESC
+        LIMIT 1
+    ');
+    $insertStmt = $pdo->prepare('
+        INSERT INTO tmp_route_extremes (trip_id, start_station, end_station)
+        VALUES (:trip_id, :start_station, :end_station)
+    ');
+
+    $tripStmt->execute(['route' => $routeId]);
+
+    $count = 0;
+    while ($trip = $tripStmt->fetch(PDO::FETCH_ASSOC)) {
+        $tripId = $trip['trip_id'];
+
+        $firstStmt->execute(['trip' => $tripId]);
+        $first = $firstStmt->fetch(PDO::FETCH_ASSOC);
+        $lastStmt->execute(['trip' => $tripId]);
+        $last = $lastStmt->fetch(PDO::FETCH_ASSOC);
+
+        if (!$first || !$last) {
+            continue;
+        }
+
+        $startStation = $first['parent_station'];
+        if ($startStation === null || trim($startStation) === '') {
+            $startStation = $first['stop_id'];
+        }
+        $endStation = $last['parent_station'];
+        if ($endStation === null || trim($endStation) === '') {
+            $endStation = $last['stop_id'];
+        }
+
+        $insertStmt->execute([
+            'trip_id' => $tripId,
+            'start_station' => $startStation,
+            'end_station' => $endStation,
+        ]);
+        $count++;
+    }
+
+    // Directions pour cette route
+    $dirStmt = $pdo->query('
+        SELECT start_station, end_station, COUNT(*) AS trips
+        FROM tmp_route_extremes
+        GROUP BY start_station, end_station
+        ORDER BY trips DESC
+    ');
+    $directions = $dirStmt->fetchAll(PDO::FETCH_ASSOC);
+
+    $created = 0;
+    foreach ($directions as $dir) {
+        $dirId = insertDirection($pdo, $routeId, $dir['start_station'], $dir['end_station'], (int) $dir['trips']);
+        insertStopsForDirection($pdo, $routeId, $dir['start_station'], $dir['end_station'], $dirId);
+        $created++;
+        reportDir($cb, 'direction_created', [
+            'route_id' => $routeId,
+            'start' => $dir['start_station'],
+            'end' => $dir['end_station'],
+            'trips' => (int) $dir['trips'],
+        ]);
+    }
+
+    return $created;
+}
+
+function insertDirection(PDO $pdo, string $routeId, string $startStation, string $endStation, int $trips): int
+{
+    $stmt = $pdo->prepare('INSERT INTO route_directions (route_id, start_station, end_station, trips_count) VALUES (:r, :s, :e, :t)');
+    $stmt->execute([
+        'r' => $routeId,
+        's' => $startStation,
+        'e' => $endStation,
+        't' => $trips,
+    ]);
+    return (int) $pdo->lastInsertId();
+}
+
+function insertStopsForDirection(PDO $pdo, string $routeId, string $startStation, string $endStation, int $directionId): void
+{
+    // Trip représentatif pour cette paire start/end
+    $tripId = pickRepresentativeTrip($pdo, $routeId, $startStation, $endStation);
+    if ($tripId === null) {
+        return;
+    }
+
+    $stmt = $pdo->prepare('
+        SELECT st.stop_id, st.stop_sequence, s.stop_name, s.parent_station, s.stop_lat, s.stop_lon
+        FROM stop_times st
+        JOIN stops s ON s.stop_id = st.stop_id
+        WHERE st.trip_id = :trip
+        ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC
+    ');
+    $stmt->execute(['trip' => $tripId]);
+    $rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
+
+    // On regroupe par station (parent_station sinon stop_id) pour éviter doublons quai.
+    $seen = [];
+    $sequence = 1;
+    $insert = $pdo->prepare('
+        INSERT INTO route_direction_stops (route_direction_id, stop_id, stop_name, stop_lat, stop_lon, stop_sequence)
+        VALUES (:dir, :stop_id, :name, :lat, :lon, :seq)
+    ');
+
+    foreach ($rows as $row) {
+        $stationId = $row['parent_station'];
+        if ($stationId === null || trim($stationId) === '') {
+            $stationId = $row['stop_id'];
+        }
+        if (isset($seen[$stationId])) {
+            continue;
+        }
+        $seen[$stationId] = true;
+        $insert->execute([
+            'dir' => $directionId,
+            'stop_id' => $stationId,
+            'name' => $row['stop_name'],
+            'lat' => $row['stop_lat'] !== null ? (float) $row['stop_lat'] : null,
+            'lon' => $row['stop_lon'] !== null ? (float) $row['stop_lon'] : null,
+            'seq' => $sequence,
+        ]);
+        $sequence++;
+    }
+}
+
+function pickRepresentativeTrip(PDO $pdo, string $routeId, string $startStation, string $endStation): ?string
+{
+    $stmt = $pdo->prepare('
+        SELECT t.trip_id
+        FROM trips t
+        JOIN tmp_route_extremes te ON te.trip_id = t.trip_id
+        WHERE t.route_id = :route
+          AND te.start_station = :start
+          AND te.end_station = :end
+        LIMIT 1
+    ');
+    $stmt->execute([
+        'route' => $routeId,
+        'start' => $startStation,
+        'end' => $endStation,
+    ]);
+    $tripId = $stmt->fetchColumn();
+    return $tripId !== false ? (string) $tripId : null;
+}
+
+function reportDir(?callable $cb, string $event, array $context = []): void
+{
+    if ($cb) {
+        $cb($event, $context);
+    }
+}
+
+// CLI direct
+if (php_sapi_name() === 'cli' && realpath($_SERVER['SCRIPT_FILENAME'] ?? '') === __FILE__) {
+    runBuildRouteDirections(function (string $event, array $ctx) {
+        echo '[' . $event . '] ' . json_encode($ctx) . PHP_EOL;
+    });
+}
*** End Patch


Output: {"output":"Success. Updated the following files:\nA import/build_route_directions.php\n","metadata":{"exit_code":0,"duration_seconds":0.4}}


La construction des directions a été simplifiée : plus de table globale. Chaque ligne est traitée séparément avec une petite table temporaire `tmp_route_extremes` (InnoDB) et un calcul des extrémités en parcourant seulement les trips de la ligne. Cela évite les grosses tables temporaires qui saturaient le `tmpdir`.

Fichiers impactés :
- `import/build_route_directions.php` réécrit pour un traitement par route (création/dépose de la table temporaire à chaque route).

À relancer en local (MySQL WAMP démarré) :
```
php import/run_route_directions.php
```
En prod :
```
APP_ENV=prod php import/run_route_directions.php
```
Laisse-le tourner quelques minutes ; il devrait avancer route par route sans “table pleine”. Si ça bloque encore, on regardera l’espace disque MySQL ou le port/instance utilisés.


faudrait pas vider ou purger un truc ?
ca fait quelques lignes et ca sature
C:\wamp64\www\in>php import/run_route_directions.php
{"event":"start","time":"12:51:49"}
{"event":"start","time":"12:51:49","context":[]}
{"event":"route_start","time":"12:51:49","context":{"route_id":"IDFM:C00001","index":1,"total":2013}}
{"event":"direction_created","time":"12:51:50","context":{"route_id":"IDFM:C00001","start":"IDFM:69762","end":"IDFM:69579","trips":50}}
{"event":"direction_created","time":"12:51:50","context":{"route_id":"IDFM:C00001","start":"IDFM:69579","end":"IDFM:69762","trips":49}}
{"event":"direction_created","time":"12:51:50","context":{"route_id":"IDFM:C00001","start":"IDFM:69579","end":"IDFM:69653","trips":44}}
{"event":"direction_created","time":"12:51:50","context":{"route_id":"IDFM:C00001","start":"IDFM:69653","end":"IDFM:69579","trips":43}}
{"event":"route_done","time":"12:51:50","context":{"route_id":"IDFM:C00001","index":1,"total":2013,"directions":4}}
{"event":"route_start","time":"12:51:50","context":{"route_id":"IDFM:C00003","index":2,"total":2013}}
{"event":"direction_created","time":"12:51:50","context":{"route_id":"IDFM:C00003","start":"IDFM:69596","end":"IDFM:69596","trips":18}}
{"event":"direction_created","time":"12:51:50","context":{"route_id":"IDFM:C00003","start":"IDFM:69572","end":"IDFM:69596","trips":4}}
{"event":"direction_created","time":"12:51:50","context":{"route_id":"IDFM:C00003","start":"IDFM:69596","end":"IDFM:69625","trips":4}}
{"event":"route_done","time":"12:51:50","context":{"route_id":"IDFM:C00003","index":2,"total":2013,"directions":3}}
{"event":"route_start","time":"12:51:50","context":{"route_id":"IDFM:C00004","index":3,"total":2013}}
{"event":"error","time":"12:51:50","message":"SQLSTATE[HY000]: General error: 1114 La table 'tmp_route_extremes' est pleine"}


**Replacing temporary table with persistent one**

Planning to avoid temp table full errors by switching from temporary InnoDB tables to a persistent table truncated per route, storing data on disk outside the temp tablespace; next, I'll implement creation once at startup and truncation before each route's processing.


Input:
*** Begin Patch
*** Update File: import/build_route_directions.php
@@
 function runBuildRouteDirections(?callable $onProgress = null): array
 {
     $config = require __DIR__ . '/config_bdd.php';
     $dsn = sprintf('mysql:host=%s;port=%d;dbname=%s;charset=%s', $config['host'], $config['port'], $config['dbname'], $config['charset']);
     $pdo = new PDO($dsn, $config['user'], $config['password'], [
         PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
     ]);

     reportDir($onProgress, 'start');

     createTablesDirections($pdo);
+    $workTable = createWorkTable($pdo);

     $routes = fetchRoutesIds($pdo);
     $totalRoutes = count($routes);
     $totalDirections = 0;

     foreach ($routes as $idx => $routeId) {
         $routePos = $idx + 1;
         reportDir($onProgress, 'route_start', ['route_id' => $routeId, 'index' => $routePos, 'total' => $totalRoutes]);
-        $created = buildDirectionsForRoute($pdo, $routeId, $onProgress);
+        $created = buildDirectionsForRoute($pdo, $routeId, $workTable, $onProgress);
         $totalDirections += $created;
         reportDir($onProgress, 'route_done', ['route_id' => $routeId, 'index' => $routePos, 'total' => $totalRoutes, 'directions' => $created]);
     }
*** End Patch


Output: {"output":"Failed to write file import/build_route_directions.php\n","metadata":{"exit_code":1,"duration_seconds":0.3}}


Get-Content import\build_route_directions.php | findstr /n "createTablesDirections"


Output:
Exit code: 1
Wall time: 1 seconds
Output:


Get-Content import\build_route_directions.php | findstr /n "route_start"


Output:
Exit code: 1
Wall time: 0.9 seconds
Output:


Get-Content import\build_route_directions.php | findstr /n "function"


Output:
Exit code: 1
Wall time: 1 seconds
Output:


**Checking file presence for patch failure**


Output:
Exit code: 0
Wall time: 0.8 seconds
Output:

    R‚pertoireÿ: C:\wamp64\www\in\import

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
-a----        15/12/2025     11:28           6470 build_line_stops.php
-a----        15/12/2025     13:53              0 build_route_directions.php
-a----        15/12/2025     09:28           3090 classify_lines.php
-a----        15/12/2025     09:44           1511 config_bdd.php
-a----        15/12/2025     09:28          13581 import_data.php
-a----        15/12/2025     12:45          13903 index.php
-a----        15/12/2025     09:28           4015 prepare_indexes.php
-a----        15/12/2025     09:28           1285 run_classify.php
-a----        15/12/2025     10:22           1374 run_import.php
-a----        15/12/2025     10:54           1333 run_line_stops.php
-a----        15/12/2025     09:28           1292 run_prepare_indexes.php
-a----        15/12/2025     12:28           1363 run_route_directions.php


**Reconstructing route directions with persistent work table**

Planning to rebuild the route directions PHP script using a persistent truncated work table that includes a route_id column for filtering; transactions will commit every 2000 inserts, and the flow will report progress per route while ensuring ASCII compliance.


**Passing table name as parameter**

I'm adjusting the edge code to accept the work table name as a parameter for flexibility. Next, I'll implement the stable version with report directory support and add a CLI entry before applying the patch.


Input:
*** Begin Patch
*** Add File: import/build_route_directions.php
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Construit des directions par ligne à partir des extrémités des trips.
+ * On regroupe par station (parent_station si présent) pour éviter les doublons de quais.
+ * Tables créées :
+ * - route_directions (route_id, start_station, end_station, trips_count)
+ * - route_direction_stops (stop_id, stop_name, stop_lat, stop_lon, stop_sequence)
+ *
+ * Optimisation : traitement route par route avec une table de travail persistante
+ * (route_tmp_extremes) truncatée à chaque route pour éviter de saturer le tmpdir.
+ */
+
+function runBuildRouteDirections(?callable $onProgress = null): array
+{
+    $config = require __DIR__ . '/config_bdd.php';
+    $dsn = sprintf('mysql:host=%s;port=%d;dbname=%s;charset=%s', $config['host'], $config['port'], $config['dbname'], $config['charset']);
+    $pdo = new PDO($dsn, $config['user'], $config['password'], [
+        PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+    ]);
+
+    reportDir($onProgress, 'start');
+
+    createTablesDirections($pdo);
+    $workTable = createWorkTable($pdo);
+
+    $routes = fetchRoutesIds($pdo);
+    $totalRoutes = count($routes);
+    $totalDirections = 0;
+
+    foreach ($routes as $idx => $routeId) {
+        $routePos = $idx + 1;
+        reportDir($onProgress, 'route_start', ['route_id' => $routeId, 'index' => $routePos, 'total' => $totalRoutes]);
+        $created = buildDirectionsForRoute($pdo, $routeId, $workTable, $onProgress);
+        $totalDirections += $created;
+        reportDir($onProgress, 'route_done', ['route_id' => $routeId, 'index' => $routePos, 'total' => $totalRoutes, 'directions' => $created]);
+    }
+
+    reportDir($onProgress, 'done', ['routes' => $totalRoutes, 'directions' => $totalDirections]);
+    return ['routes' => $totalRoutes, 'directions' => $totalDirections];
+}
+
+function createTablesDirections(PDO $pdo): void
+{
+    $pdo->exec('DROP TABLE IF EXISTS route_direction_stops');
+    $pdo->exec('DROP TABLE IF EXISTS route_directions');
+
+    $pdo->exec(<<<SQL
+CREATE TABLE route_directions (
+  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  route_id VARCHAR(255) NOT NULL,
+  start_station VARCHAR(255) NOT NULL,
+  end_station VARCHAR(255) NOT NULL,
+  trips_count INT UNSIGNED NOT NULL DEFAULT 0,
+  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (id),
+  UNIQUE KEY uniq_route_direction (route_id, start_station, end_station)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+SQL);
+
+    $pdo->exec(<<<SQL
+CREATE TABLE route_direction_stops (
+  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  route_direction_id BIGINT UNSIGNED NOT NULL,
+  stop_id VARCHAR(255) NOT NULL,
+  stop_name TEXT,
+  stop_lat DOUBLE NULL,
+  stop_lon DOUBLE NULL,
+  stop_sequence INT NULL,
+  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (id),
+  UNIQUE KEY uniq_dir_stop (route_direction_id, stop_id),
+  KEY idx_dir_seq (route_direction_id, stop_sequence),
+  CONSTRAINT fk_dir_stop_dir FOREIGN KEY (route_direction_id) REFERENCES route_directions(id) ON DELETE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+SQL);
+}
+
+function createWorkTable(PDO $pdo): string
+{
+    $table = 'route_tmp_extremes';
+    $pdo->exec("DROP TABLE IF EXISTS {$table}");
+    $pdo->exec(<<<SQL
+CREATE TABLE {$table} (
+  trip_id VARCHAR(255) NOT NULL,
+  route_id VARCHAR(255) NOT NULL,
+  start_station VARCHAR(255) NOT NULL,
+  end_station VARCHAR(255) NOT NULL,
+  PRIMARY KEY (trip_id),
+  KEY idx_route (route_id),
+  KEY idx_route_start_end (route_id, start_station, end_station)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+SQL);
+    return $table;
+}
+
+function fetchRoutesIds(PDO $pdo): array
+{
+    $stmt = $pdo->query('SELECT route_id FROM routes');
+    return $stmt->fetchAll(PDO::FETCH_COLUMN);
+}
+
+function buildDirectionsForRoute(PDO $pdo, string $routeId, string $workTable, ?callable $cb = null): int
+{
+    $pdo->exec("TRUNCATE TABLE {$workTable}");
+
+    $tripStmt = $pdo->prepare('SELECT trip_id FROM trips WHERE route_id = :route');
+    $firstStmt = $pdo->prepare('
+        SELECT s.stop_id, s.parent_station
+        FROM stop_times st
+        JOIN stops s ON s.stop_id = st.stop_id
+        WHERE st.trip_id = :trip
+        ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC
+        LIMIT 1
+    ');
+    $lastStmt = $pdo->prepare('
+        SELECT s.stop_id, s.parent_station
+        FROM stop_times st
+        JOIN stops s ON s.stop_id = st.stop_id
+        WHERE st.trip_id = :trip
+        ORDER BY CAST(st.stop_sequence AS UNSIGNED) DESC
+        LIMIT 1
+    ');
+    $insertStmt = $pdo->prepare("
+        INSERT INTO {$workTable} (trip_id, route_id, start_station, end_station)
+        VALUES (:trip_id, :route_id, :start_station, :end_station)
+    ");
+
+    $tripStmt->execute(['route' => $routeId]);
+
+    $pdo->beginTransaction();
+    $count = 0;
+    while ($trip = $tripStmt->fetch(PDO::FETCH_ASSOC)) {
+        $tripId = $trip['trip_id'];
+
+        $firstStmt->execute(['trip' => $tripId]);
+        $first = $firstStmt->fetch(PDO::FETCH_ASSOC);
+        $lastStmt->execute(['trip' => $tripId]);
+        $last = $lastStmt->fetch(PDO::FETCH_ASSOC);
+
+        if (!$first || !$last) {
+            continue;
+        }
+
+        $startStation = $first['parent_station'];
+        if ($startStation === null || trim($startStation) === '') {
+            $startStation = $first['stop_id'];
+        }
+        $endStation = $last['parent_station'];
+        if ($endStation === null || trim($endStation) === '') {
+            $endStation = $last['stop_id'];
+        }
+
+        $insertStmt->execute([
+            'trip_id' => $tripId,
+            'route_id' => $routeId,
+            'start_station' => $startStation,
+            'end_station' => $endStation,
+        ]);
+
+        $count++;
+        if (($count % 2000) === 0) {
+            $pdo->commit();
+            $pdo->beginTransaction();
+        }
+    }
+    $pdo->commit();
+
+    $dirStmt = $pdo->prepare("
+        SELECT start_station, end_station, COUNT(*) AS trips
+        FROM {$workTable}
+        WHERE route_id = :route
+        GROUP BY start_station, end_station
+        ORDER BY trips DESC
+    ");
+    $dirStmt->execute(['route' => $routeId]);
+    $directions = $dirStmt->fetchAll(PDO::FETCH_ASSOC);
+
+    $created = 0;
+    foreach ($directions as $dir) {
+        $dirId = insertDirection($pdo, $routeId, $dir['start_station'], $dir['end_station'], (int) $dir['trips']);
+        insertStopsForDirection($pdo, $routeId, $dir['start_station'], $dir['end_station'], $dirId, $workTable);
+        $created++;
+        reportDir($cb, 'direction_created', [
+            'route_id' => $routeId,
+            'start' => $dir['start_station'],
+            'end' => $dir['end_station'],
+            'trips' => (int) $dir['trips'],
+        ]);
+    }
+
+    return $created;
+}
+
+function insertDirection(PDO $pdo, string $routeId, string $startStation, string $endStation, int $trips): int
+{
+    $stmt = $pdo->prepare('INSERT INTO route_directions (route_id, start_station, end_station, trips_count) VALUES (:r, :s, :e, :t)');
+    $stmt->execute([
+        'r' => $routeId,
+        's' => $startStation,
+        'e' => $endStation,
+        't' => $trips,
+    ]);
+    return (int) $pdo->lastInsertId();
+}
+
+function insertStopsForDirection(PDO $pdo, string $routeId, string $startStation, string $endStation, int $directionId, string $workTable): void
+{
+    $tripId = pickRepresentativeTrip($pdo, $routeId, $startStation, $endStation, $workTable);
+    if ($tripId === null) {
+        return;
+    }
+
+    $stmt = $pdo->prepare('
+        SELECT st.stop_id, st.stop_sequence, s.stop_name, s.parent_station, s.stop_lat, s.stop_lon
+        FROM stop_times st
+        JOIN stops s ON s.stop_id = st.stop_id
+        WHERE st.trip_id = :trip
+        ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC
+    ');
+    $stmt->execute(['trip' => $tripId]);
+    $rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
+
+    $seen = [];
+    $sequence = 1;
+    $insert = $pdo->prepare('
+        INSERT INTO route_direction_stops (route_direction_id, stop_id, stop_name, stop_lat, stop_lon, stop_sequence)
+        VALUES (:dir, :stop_id, :name, :lat, :lon, :seq)
+    ');
+
+    foreach ($rows as $row) {
+        $stationId = $row['parent_station'];
+        if ($stationId === null || trim($stationId) === '') {
+            $stationId = $row['stop_id'];
+        }
+        if (isset($seen[$stationId])) {
+            continue;
+        }
+        $seen[$stationId] = true;
+        $insert->execute([
+            'dir' => $directionId,
+            'stop_id' => $stationId,
+            'name' => $row['stop_name'],
+            'lat' => $row['stop_lat'] !== null ? (float) $row['stop_lat'] : null,
+            'lon' => $row['stop_lon'] !== null ? (float) $row['stop_lon'] : null,
+            'seq' => $sequence,
+        ]);
+        $sequence++;
+    }
+}
+
+function pickRepresentativeTrip(PDO $pdo, string $routeId, string $startStation, string $endStation, string $workTable): ?string
+{
+    $stmt = $pdo->prepare("
+        SELECT trip_id
+        FROM {$workTable}
+        WHERE route_id = :route
+          AND start_station = :start
+          AND end_station = :end
+        LIMIT 1
+    ");
+    $stmt->execute([
+        'route' => $routeId,
+        'start' => $startStation,
+        'end' => $endStation,
+    ]);
+    $tripId = $stmt->fetchColumn();
+    return $tripId !== false ? (string) $tripId : null;
+}
+
+function reportDir(?callable $cb, string $event, array $context = []): void
+{
+    if ($cb) {
+        $cb($event, $context);
+    }
+}
+
+// CLI direct
+if (php_sapi_name() === 'cli' && realpath($_SERVER['SCRIPT_FILENAME'] ?? '') === __FILE__) {
+    runBuildRouteDirections(function (string $event, array $ctx) {
+        echo '[' . $event . '] ' . json_encode($ctx) . PHP_EOL;
+    });
+}
*** End Patch


Output: {"output":"Success. Updated the following files:\nA import/build_route_directions.php\n","metadata":{"exit_code":0,"duration_seconds":0.4}}


Output:
Exit code: 0
Wall time: 1.1 seconds
Output:
No syntax errors detected in import/build_route_directions.php


- Le fichier `import/build_route_directions.php` était vide après l’erreur précédente : je l’ai reconstruit avec une approche plus sûre.
- Nouveau fonctionnement : une table de travail persistante `route_tmp_extremes` (InnoDB) est créée une fois puis TRUNCATE à chaque route. Plus de table temporaire qui remplit le `tmpdir`.
- Chaque route est traitée séparément : on extrait les extrémités de ses trips, on insère les directions, puis les arrêts ordonnés (en regroupant par station `parent_station`).

À relancer en local (MySQL démarré) :
```
php import/run_route_directions.php
```
En prod :
```
APP_ENV=prod php import/run_route_directions.php
```
Cette version évite les “table … pleine” du tmpdir. Si ça bloque encore, il faudra vérifier l’espace disque MySQL.


**Planning rewrite to avoid temp table**

The user’s "table full" error seems tied to disk or table space limits with InnoDB on Windows WAMP, likely caused by heavy use of the temporary per-route extremes table. I'll rewrite build_route_directions.php to eliminate that table, aggregating trip directions entirely in PHP arrays with multiple queries per route instead.


Input:
*** Begin Patch
*** Delete File: import/build_route_directions.php
*** End Patch


Output: {"output":"Success. Updated the following files:\nD import/build_route_directions.php\n","metadata":{"exit_code":0,"duration_seconds":0.3}}


Input:
*** Begin Patch
*** Add File: import/build_route_directions.php
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Construit des directions par ligne à partir des extrémités des trips.
+ * On regroupe par station (parent_station si présent) pour éviter les doublons de quais.
+ * Tables créées :
+ * - route_directions (route_id, start_station, end_station, trips_count)
+ * - route_direction_stops (stop_id, stop_name, stop_lat, stop_lon, stop_sequence)
+ *
+ * Optimisation : aucun stockage massif. On parcourt les trips de chaque ligne,
+ * on agrège en mémoire (start/end -> count, trip_id représentatif) puis on insère.
+ */
+
+function runBuildRouteDirections(?callable $onProgress = null): array
+{
+    $config = require __DIR__ . '/config_bdd.php';
+    $dsn = sprintf('mysql:host=%s;port=%d;dbname=%s;charset=%s', $config['host'], $config['port'], $config['dbname'], $config['charset']);
+    $pdo = new PDO($dsn, $config['user'], $config['password'], [
+        PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
+    ]);
+
+    reportDir($onProgress, 'start');
+
+    createTablesDirections($pdo);
+
+    $routes = fetchRoutesIds($pdo);
+    $totalRoutes = count($routes);
+    $totalDirections = 0;
+
+    foreach ($routes as $idx => $routeId) {
+        $routePos = $idx + 1;
+        reportDir($onProgress, 'route_start', ['route_id' => $routeId, 'index' => $routePos, 'total' => $totalRoutes]);
+        $created = buildDirectionsForRoute($pdo, $routeId, $onProgress);
+        $totalDirections += $created;
+        reportDir($onProgress, 'route_done', ['route_id' => $routeId, 'index' => $routePos, 'total' => $totalRoutes, 'directions' => $created]);
+    }
+
+    reportDir($onProgress, 'done', ['routes' => $totalRoutes, 'directions' => $totalDirections]);
+    return ['routes' => $totalRoutes, 'directions' => $totalDirections];
+}
+
+function createTablesDirections(PDO $pdo): void
+{
+    $pdo->exec('DROP TABLE IF EXISTS route_direction_stops');
+    $pdo->exec('DROP TABLE IF EXISTS route_directions');
+
+    $pdo->exec(<<<SQL
+CREATE TABLE route_directions (
+  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  route_id VARCHAR(255) NOT NULL,
+  start_station VARCHAR(255) NOT NULL,
+  end_station VARCHAR(255) NOT NULL,
+  trips_count INT UNSIGNED NOT NULL DEFAULT 0,
+  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (id),
+  UNIQUE KEY uniq_route_direction (route_id, start_station, end_station)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+SQL);
+
+    $pdo->exec(<<<SQL
+CREATE TABLE route_direction_stops (
+  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  route_direction_id BIGINT UNSIGNED NOT NULL,
+  stop_id VARCHAR(255) NOT NULL,
+  stop_name TEXT,
+  stop_lat DOUBLE NULL,
+  stop_lon DOUBLE NULL,
+  stop_sequence INT NULL,
+  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (id),
+  UNIQUE KEY uniq_dir_stop (route_direction_id, stop_id),
+  KEY idx_dir_seq (route_direction_id, stop_sequence),
+  CONSTRAINT fk_dir_stop_dir FOREIGN KEY (route_direction_id) REFERENCES route_directions(id) ON DELETE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+SQL);
+}
+
+function fetchRoutesIds(PDO $pdo): array
+{
+    $stmt = $pdo->query('SELECT route_id FROM routes');
+    return $stmt->fetchAll(PDO::FETCH_COLUMN);
+}
+
+function buildDirectionsForRoute(PDO $pdo, string $routeId, ?callable $cb = null): int
+{
+    // Map start|end => ['start' => ..., 'end' => ..., 'count' => int, 'trip' => trip_id]
+    $directions = [];
+
+    $tripStmt = $pdo->prepare('SELECT trip_id FROM trips WHERE route_id = :route');
+    $tripStmt->execute(['route' => $routeId]);
+
+    $firstStmt = $pdo->prepare('
+        SELECT s.stop_id, s.parent_station
+        FROM stop_times st
+        JOIN stops s ON s.stop_id = st.stop_id
+        WHERE st.trip_id = :trip
+        ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC
+        LIMIT 1
+    ');
+    $lastStmt = $pdo->prepare('
+        SELECT s.stop_id, s.parent_station
+        FROM stop_times st
+        JOIN stops s ON s.stop_id = st.stop_id
+        WHERE st.trip_id = :trip
+        ORDER BY CAST(st.stop_sequence AS UNSIGNED) DESC
+        LIMIT 1
+    ');
+
+    while ($trip = $tripStmt->fetch(PDO::FETCH_ASSOC)) {
+        $tripId = $trip['trip_id'];
+
+        $firstStmt->execute(['trip' => $tripId]);
+        $first = $firstStmt->fetch(PDO::FETCH_ASSOC);
+        $lastStmt->execute(['trip' => $tripId]);
+        $last = $lastStmt->fetch(PDO::FETCH_ASSOC);
+
+        if (!$first || !$last) {
+            continue;
+        }
+
+        $startStation = $first['parent_station'];
+        if ($startStation === null || trim($startStation) === '') {
+            $startStation = $first['stop_id'];
+        }
+        $endStation = $last['parent_station'];
+        if ($endStation === null || trim($endStation) === '') {
+            $endStation = $last['stop_id'];
+        }
+
+        $key = $startStation . '|' . $endStation;
+        if (!isset($directions[$key])) {
+            $directions[$key] = [
+                'start' => $startStation,
+                'end' => $endStation,
+                'count' => 0,
+                'trip' => $tripId,
+            ];
+        }
+        $directions[$key]['count']++;
+    }
+
+    // Insertion des directions + stops
+    $created = 0;
+    foreach ($directions as $dir) {
+        $dirId = insertDirection($pdo, $routeId, $dir['start'], $dir['end'], $dir['count']);
+        insertStopsForDirection($pdo, $routeId, $dirId, $dir['trip']);
+        $created++;
+        reportDir($cb, 'direction_created', [
+            'route_id' => $routeId,
+            'start' => $dir['start'],
+            'end' => $dir['end'],
+            'trips' => $dir['count'],
+        ]);
+    }
+
+    return $created;
+}
+
+function insertDirection(PDO $pdo, string $routeId, string $startStation, string $endStation, int $trips): int
+{
+    $stmt = $pdo->prepare('INSERT INTO route_directions (route_id, start_station, end_station, trips_count) VALUES (:r, :s, :e, :t)');
+    $stmt->execute([
+        'r' => $routeId,
+        's' => $startStation,
+        'e' => $endStation,
+        't' => $trips,
+    ]);
+    return (int) $pdo->lastInsertId();
+}
+
+function insertStopsForDirection(PDO $pdo, string $routeId, int $directionId, string $tripId): void
+{
+    $stmt = $pdo->prepare('
+        SELECT st.stop_id, st.stop_sequence, s.stop_name, s.parent_station, s.stop_lat, s.stop_lon
+        FROM stop_times st
+        JOIN stops s ON s.stop_id = st.stop_id
+        WHERE st.trip_id = :trip
+        ORDER BY CAST(st.stop_sequence AS UNSIGNED) ASC
+    ');
+    $stmt->execute(['trip' => $tripId]);
+    $rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
+
+    $seen = [];
+    $sequence = 1;
+    $insert = $pdo->prepare('
+        INSERT INTO route_direction_stops (route_direction_id, stop_id, stop_name, stop_lat, stop_lon, stop_sequence)
+        VALUES (:dir, :stop_id, :name, :lat, :lon, :seq)
+    ');
+
+    foreach ($rows as $row) {
+        $stationId = $row['parent_station'];
+        if ($stationId === null || trim($stationId) === '') {
+            $stationId = $row['stop_id'];
+        }
+        if (isset($seen[$stationId])) {
+            continue;
+        }
+        $seen[$stationId] = true;
+        $insert->execute([
+            'dir' => $directionId,
+            'stop_id' => $stationId,
+            'name' => $row['stop_name'],
+            'lat' => $row['stop_lat'] !== null ? (float) $row['stop_lat'] : null,
+            'lon' => $row['stop_lon'] !== null ? (float) $row['stop_lon'] : null,
+            'seq' => $sequence,
+        ]);
+        $sequence++;
+    }
+}
+
+function reportDir(?callable $cb, string $event, array $context = []): void
+{
+    if ($cb) {
+        $cb($event, $context);
+    }
+}
+
+// CLI direct
+if (php_sapi_name() === 'cli' && realpath($_SERVER['SCRIPT_FILENAME'] ?? '') === __FILE__) {
+    runBuildRouteDirections(function (string $event, array $ctx) {
+        echo '[' . $event . '] ' . json_encode($ctx) . PHP_EOL;
+    });
+}
*** End Patch


Output: {"output":"Success. Updated the following files:\nA import/build_route_directions.php\n","metadata":{"exit_code":0,"duration_seconds":0.4}}


Output:
Exit code: 0
Wall time: 1.3 seconds
Output:
No syntax errors detected in import/build_route_directions.php


- `import/build_route_directions.php` a été réécrit : plus de table intermédiaire volumineuse. Pour chaque ligne, on parcourt les trips, on agrège en mémoire (start/end → compteur + trip représentatif), puis on insère directement les directions et les arrêts. Plus de risque de “table pleine” lié aux tables temporaires.

- Les tables finales restent les mêmes (`route_directions`, `route_direction_stops`), recréées en début de run.

Relance en local (MySQL lancé) :
```
php import/run_route_directions.php
```
En prod :
```
APP_ENV=prod php import/run_route_directions.php
```
Cette version évite les saturations du tmpdir/data dir. Surveille le temps d’exécution, mais ça doit avancer route par route sans erreur 1114.


**Diagnosing InnoDB table full errors**

The "table is full" errors likely stem from InnoDB tablespace limits or disk space constraints on WAMP's default MySQL setup with 32-bit or auto-extended ibdata1 at max size. Since the route_direction_stops table fills after few inserts despite small row count, it likely hits tablespace limits rather than actual disk space. Switching route_direction_stops and related tables to MyISAM will store data outside the InnoDB tablespace and avoid the size limit, so I'll modify table creation to use MyISAM and remove foreign keys accordingly.


Input:
*** Begin Patch
*** Update File: import/build_route_directions.php
@@
-CREATE TABLE route_directions (
-  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
-  route_id VARCHAR(255) NOT NULL,
-  start_station VARCHAR(255) NOT NULL,
-  end_station VARCHAR(255) NOT NULL,
-  trips_count INT UNSIGNED NOT NULL DEFAULT 0,
-  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
-  updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
-  PRIMARY KEY (id),
-  UNIQUE KEY uniq_route_direction (route_id, start_station, end_station)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+CREATE TABLE route_directions (
+  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  route_id VARCHAR(255) NOT NULL,
+  start_station VARCHAR(255) NOT NULL,
+  end_station VARCHAR(255) NOT NULL,
+  trips_count INT UNSIGNED NOT NULL DEFAULT 0,
+  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  PRIMARY KEY (id),
+  UNIQUE KEY uniq_route_direction (route_id, start_station, end_station)
+) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
 SQL);

     $pdo->exec(<<<SQL
 CREATE TABLE route_direction_stops (
   id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
@@
   stop_sequence INT NULL,
   created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
   updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
   PRIMARY KEY (id),
   UNIQUE KEY uniq_dir_stop (route_direction_id, stop_id),
-  KEY idx_dir_seq (route_direction_id, stop_sequence),
-  CONSTRAINT fk_dir_stop_dir FOREIGN KEY (route_direction_id) REFERENCES route_directions(id) ON DELETE CASCADE
-) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+  KEY idx_dir_seq (route_direction_id, stop_sequence)
+) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
 SQL);
 }
*** End Patch


Output: {"output":"Success. Updated the following files:\nM import/build_route_directions.php\n","metadata":{"exit_code":0,"duration_seconds":0.4}}


J’ai forcé les tables `route_directions` et `route_direction_stops` en MyISAM (plus de FK) pour sortir des limites InnoDB qui saturent (“table pleine”). Le reste du script ne change pas.

Relance en local :
```
php import/run_route_directions.php
```
En prod :
```
APP_ENV=prod php import/run_route_directions.php
```
Ça devrait éviter l’erreur 1114 liée à l’espace InnoDB. If ça bloque encore, on sera probablement face à un vrai manque d’espace disque MySQL.


comment je sais la taille disque allouée ?
faut redémarrer mysql ?


**Providing WAMP MySQL storage guidance**

I'm explaining how to check MySQL data directory and tmpdir disk usage on Windows using WAMP, noting the default path and how to inspect disk space via Explorer and properties. I also suggest verifying table storage types and sizes via phpMyAdmin or SQL commands, recommend adjusting my.ini for InnoDB data file settings if needed, and advise restarting MySQL after config changes but not after schema updates.