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

declare(strict_types=1);

require __DIR__ . '/../vendor/autoload.php';

use Pairity\Console\MigrateCommand;
use Pairity\Console\RollbackCommand;
use Pairity\Console\StatusCommand;
use Pairity\Console\ResetCommand;
use Pairity\Console\MakeMigrationCommand;
use Pairity\Console\MongoIndexEnsureCommand;
use Pairity\Console\MongoIndexDropCommand;
use Pairity\Console\MongoIndexListCommand;

function parseArgs(array $argv): array {
    $args = ['_cmd' => $argv[1] ?? 'help'];
    for ($i = 2; $i < count($argv); $i++) {
        $a = $argv[$i];
        if (str_starts_with($a, '--')) {
            $eq = strpos($a, '=');
            if ($eq !== false) {
                $key = substr($a, 2, $eq - 2);
                $val = substr($a, $eq + 1);
                $args[$key] = $val;
            } else {
                $key = substr($a, 2);
                $args[$key] = true;
            }
        } else {
            $args[] = $a;
        }
    }
    return $args;
}

function cmd_help(): void
{
    $help = <<<TXT
Pairity CLI

Usage:
  pairity migrate [--path=DIR] [--config=FILE] [--pretend]
  pairity rollback [--steps=N] [--config=FILE] [--pretend]
  pairity status [--path=DIR] [--config=FILE]
  pairity reset [--config=FILE] [--pretend]
  pairity make:migration Name [--path=DIR] [--template=FILE]
  pairity mongo:index:ensure DB COLLECTION KEYS_JSON [--unique]
  pairity mongo:index:drop DB COLLECTION NAME
  pairity mongo:index:list DB COLLECTION

Environment:
  DB_DRIVER, DB_HOST, DB_PORT, DB_DATABASE, DB_USERNAME, DB_PASSWORD, DB_PATH (for sqlite)

If --config is provided, it must be a PHP file returning the ConnectionManager config array.
TXT;
    echo $help . PHP_EOL;
}

$args = parseArgs($argv);
$cmd = $args['_cmd'] ?? 'help';

$commands = [
    'migrate'            => MigrateCommand::class,
    'rollback'           => RollbackCommand::class,
    'status'             => StatusCommand::class,
    'reset'              => ResetCommand::class,
    'make:migration'     => MakeMigrationCommand::class,
    'mongo:index:ensure' => MongoIndexEnsureCommand::class,
    'mongo:index:drop'   => MongoIndexDropCommand::class,
    'mongo:index:list'   => MongoIndexListCommand::class,
];

if ($cmd === 'help' || !isset($commands[$cmd])) {
    cmd_help();
    exit($cmd === 'help' ? 0 : 1);
}

try {
    $class = $commands[$cmd];
    /** @var \Pairity\Console\CommandInterface $instance */
    $instance = new $class();
    $instance->execute($args);
} catch (\Throwable $e) {
    fwrite(STDERR, 'Error: ' . $e->getMessage() . PHP_EOL);
    exit(1);
}