#!/usr/bin/env php
<?php

function read_sql_file(string $file)
{
    $comment_regex = '/(?<!:)\/\/.*|\/\\*(\s|.)*?\*\/|--[^\n]+/';
    $lines = explode("\n", preg_replace($comment_regex, '', co::readFile($file)));
    $init_sql = [];
    $multi = false;
    foreach ($lines as $index => $line) {
        if (strlen($line) === 0) {
            continue;
        }
        if (substr($line, -1, 1) !== ';') {
            if (!$multi) {
                $multi = true;
                goto _new_line;
            } else {
                _append:
                $end_line = &$init_sql[count($init_sql) - 1];
                $end_line = $end_line . $line . "\n";
            }
        } else {
            if ($multi) {
                $multi = false;
                goto _append;
            } else {
                $multi = false;
                _new_line:
                $init_sql[] = "{$line}";
            }
        }
    }

    return $init_sql;
}

require __DIR__ . '/include/config.php';

Swoole\Coroutine\run(function () {
    echo "[DB-init] initialization MySQL database...\n";
    $mysql = new Swoole\Coroutine\MySQL();
    $connected = $mysql->connect([
        'host' => MYSQL_SERVER_HOST,
        'port' => MYSQL_SERVER_PORT,
        'user' => MYSQL_SERVER_USER,
        'password' => MYSQL_SERVER_PWD,
        'database' => MYSQL_SERVER_DB
    ]);
    if (!$connected) {
        echo "[DB-init] Connect failed! Error#{$mysql->connect_errno}: {$mysql->connect_error}\n";
        exit(1);
    }
    $sql_file = read_sql_file(__DIR__ . '/test.sql');
    foreach ($sql_file as $line) {
        if (!$mysql->query($line)) {
            echo "[DB-init] Failed! Error#{$mysql->errno}: {$mysql->error}\n";
            exit(1);
        }
    }
    echo "[DB-init] Done!\n";
});