<?php
// ── INIT DATABASE (dijalankan entrypoint pada SETIAP container start) ────────
// Pengganti "migrate + seed" dari coolify-deployment.md Aturan #6:
//   1. Tunggu database siap (retry ±60 detik).
//   2. Kalau tabel `spbu` sudah ada → skip, supaya idempoten antar restart
//      (INSERT seed di schema.sql tidak boleh jalan dua kali).
//   3. Kalau belum → eksekusi database/schema.sql, dengan melewati statement
//      CREATE DATABASE/USE — database sudah disediakan Coolify dan user
//      aplikasi tidak punya privilege CREATE DATABASE.

require __DIR__ . '/../api/env.php';

$db  = dbConfig();
$dsn = "mysql:host={$db['host']};port={$db['port']};dbname={$db['dbname']};charset=utf8mb4";

echo "Waiting for database at {$db['host']}:{$db['port']}...\n";

$pdo         = null;
$maxAttempts = 30;
for ($attempt = 1; $attempt <= $maxAttempts; $attempt++) {
    try {
        $pdo = new PDO($dsn, $db['username'], $db['password'], [
            PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
            PDO::ATTR_TIMEOUT => 3,
        ]);
        break;
    } catch (PDOException $e) {
        if ($attempt === $maxAttempts) {
            fwrite(STDERR, "Database {$db['host']}:{$db['port']} unreachable after {$maxAttempts} attempts: {$e->getMessage()}\n");
            exit(1);
        }
        sleep(2);
    }
}

echo "Database connection OK.\n";

if ($pdo->query("SHOW TABLES LIKE 'spbu'")->fetch() !== false) {
    echo "Table 'spbu' already exists, skipping schema init.\n";
    exit(0);
}

echo "Initializing schema from database/schema.sql...\n";

$sql = file_get_contents(__DIR__ . '/../database/schema.sql');

// Buang baris komentar penuh supaya pemecahan per `;` tetap aman.
$lines = array_filter(
    explode("\n", $sql),
    fn ($line) => !str_starts_with(trim($line), '--')
);

$statements = array_filter(array_map('trim', explode(';', implode("\n", $lines))));

foreach ($statements as $statement) {
    if (preg_match('/^(CREATE\s+DATABASE|USE)\b/i', $statement)) {
        continue;
    }
    $pdo->exec($statement);
}

echo "Schema initialized: table 'spbu' created and seeded.\n";