<?php
/**
 * Container health check (Coolify / Docker HEALTHCHECK).
 */
header('Content-Type: application/json; charset=utf-8');

require __DIR__ . '/config.php';

// #region agent log
function agent_debug_health_request_log(string $hypothesisId, string $message, array $data = []): void {
    $payload = [
        'sessionId' => '885d37',
        'runId' => 'coolify-bad-gateway',
        'hypothesisId' => $hypothesisId,
        'location' => 'health.php',
        'message' => $message,
        'data' => $data,
        'timestamp' => (int) round(microtime(true) * 1000),
    ];
    $line = json_encode($payload, JSON_UNESCAPED_SLASHES) . PHP_EOL;
    @file_put_contents(__DIR__ . '/debug-885d37.log', $line, FILE_APPEND);
    @error_log('agent_debug ' . $line);
}
// #endregion

try {
    agent_debug_health_request_log('H5,H7', 'health request reached PHP', [
        'sapi' => PHP_SAPI,
        'request_uri' => $_SERVER['REQUEST_URI'] ?? '',
        'http_host' => $_SERVER['HTTP_HOST'] ?? '',
        'server_port' => $_SERVER['SERVER_PORT'] ?? '',
        'database_url_getenv_present' => getenv('DATABASE_URL') !== false && getenv('DATABASE_URL') !== '',
        'database_url_server_present' => isset($_SERVER['DATABASE_URL']) && $_SERVER['DATABASE_URL'] !== '',
        'dot_env_file_exists' => file_exists(__DIR__ . '/.env'),
    ]);
    if (!extension_loaded('pdo_pgsql')) {
        throw new RuntimeException('pdo_pgsql extension missing');
    }
    require_once __DIR__ . '/helpers.php';
    require_database();
    $response = ['status' => 'ok'];
    agent_debug_health_request_log('H5,H7', 'health request returning ok', [
        'exit_code' => 0,
        'response' => $response,
    ]);
    echo json_encode($response, JSON_UNESCAPED_UNICODE);
} catch (Throwable $e) {
    http_response_code(503);
    $response = [
        'status' => 'error',
        'message' => $e->getMessage(),
    ];
    agent_debug_health_request_log('H5,H7', 'health request returning error', [
        'exit_code' => 1,
        'response' => $response,
        'error_class' => get_class($e),
    ]);
    echo json_encode($response, JSON_UNESCAPED_UNICODE);
    exit(1);
}