Implement verified curriculum, video review, watch sessions, ledger safeguards, and remove demo data

2026-09-09 17:04:08 +03:00
parent 0dc5df7b5e
commit 5af684a892
49 changed files with 1809 additions and 3005 deletions
@@ -0,0 +1,42 @@
+<?php
+declare(strict_types=1);
+
+/**
+ * Explicit migration runner. It never drops a database and does not run from
+ * HTTP. Usage: php backend/scripts/run_migrations.php [--dry-run|--status].
+ */
+require_once dirname(__DIR__) . '/app/bootstrap.php';
+
+use App\Core\Database;
+
+$mode = in_array('--status', $argv, true) ? 'status' : (in_array('--dry-run', $argv, true) ? 'dry_run' : 'apply');
+$dir = dirname(__DIR__) . '/migrations';
+$files = glob($dir . '/*.sql') ?: [];
+sort($files, SORT_STRING);
+$pdo = Database::getConnection();
+$pdo->exec("CREATE TABLE IF NOT EXISTS schema_migrations (filename VARCHAR(255) NOT NULL PRIMARY KEY, sha256 CHAR(64) NOT NULL, applied_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4");
+$applied = Database::select('SELECT filename, sha256, applied_at FROM schema_migrations ORDER BY filename');
+$known = array_column($applied, null, 'filename');
+
+foreach ($files as $file) {
+    $name = basename($file); $sha = hash_file('sha256', $file);
+    if (isset($known[$name])) {
+        if (!hash_equals((string)$known[$name]['sha256'], $sha)) { fwrite(STDERR, "REFUSE {$name}: applied migration checksum changed.\n"); exit(2); }
+        echo "APPLIED  {$name}  {$known[$name]['applied_at']}\n"; continue;
+    }
+    if ($mode === 'status') { echo "PENDING  {$name}\n"; continue; }
+    if ($mode === 'dry_run') { echo "WOULD APPLY  {$name}\n"; continue; }
+    $sql = file_get_contents($file);
+    if ($sql === false || trim($sql) === '') { fwrite(STDERR, "REFUSE {$name}: unreadable or empty.\n"); exit(2); }
+    echo "APPLYING {$name}\n";
+    try {
+        // MySQL DDL may commit implicitly. The migration is recorded only after
+        // its complete SQL succeeds; repair any partial DDL manually before retry.
+        $pdo->exec($sql);
+        Database::insert('INSERT INTO schema_migrations (filename, sha256) VALUES (?, ?)', [$name, $sha]);
+        echo "APPLIED  {$name}\n";
+    } catch (Throwable $e) {
+        fwrite(STDERR, "FAILED {$name}: {$e->getMessage()}\n");
+        exit(1);
+    }
+}