<?php

namespace App\Console\Commands;

use App\Utilities\SystemDatabaseConfiguration;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\DB;
use Throwable;

class VerifySystemDatabase extends Command
{
    public const EXIT_CONFIG_NOT_LOADED = 10;

    public const EXIT_DATABASE_CONNECTION_FAILED = 11;

    public const EXIT_SYSTEM_TABLE_VALIDATION_FAILED = 12;

    public const EXIT_SHARED_NOT_CONFIGURED = 13;

    protected $signature = 'system-database:verify';

    protected $description = '在新的 Laravel 进程中验证当前共享系统数据库';

    public function handle(SystemDatabaseConfiguration $configuration): int
    {
        try {
            $settings = $configuration->current();
        } catch (Throwable) {
            return $this->failed(
                '新配置未被 Laravel 加载。',
                self::EXIT_CONFIG_NOT_LOADED
            );
        }

        if ($settings['mode'] === 'bootstrap') {
            $this->components->warn('当前仍使用本机临时引导库，尚未接入团队共享系统数据库；本次没有测试远程连接。');
            $this->line('下一步：在“系统设置 → 数据库管理 → 系统数据库”中输入一次负责人提供的系统数据库密码。');

            return self::EXIT_SHARED_NOT_CONFIGURED;
        }

        if ($settings['mode'] !== 'shared' || ! config('upstreams.stored_configuration.enabled', false)) {
            return $this->failed(
                '共享配置未完整启用，请通过系统数据库连接页面重新保存；不要仅手工修改运行模式。',
                self::EXIT_CONFIG_NOT_LOADED
            );
        }

        try {
            DB::purge((string) $settings['connection']);
            DB::reconnect((string) $settings['connection']);
            DB::selectOne('SELECT 1');
        } catch (Throwable) {
            return $this->failed(
                'Laravel 数据库连接失败。',
                self::EXIT_DATABASE_CONNECTION_FAILED
            );
        }

        try {
            $configuration->probe($settings);
        } catch (Throwable) {
            return $this->failed(
                '系统表验证失败。',
                self::EXIT_SYSTEM_TABLE_VALIDATION_FAILED
            );
        }

        $this->components->info('共享系统数据库已通过应用级验证。');

        return self::SUCCESS;
    }

    private function failed(string $message, int $exitCode): int
    {
        $this->components->error($message);

        return $exitCode;
    }
}