<?php

namespace App\Console\Commands;

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

class ApplicationReady extends Command
{
    public const EXIT_NOT_INSTALLED = 20;

    public const EXIT_RUNTIME_NOT_WRITABLE = 21;

    public const EXIT_DATABASE_CONNECTION_FAILED = 22;

    protected $signature = 'app:ready';

    protected $description = '检查应用安装、运行目录和数据库是否已经可用';

    public function handle(SystemDatabaseConfiguration $configuration): int
    {
        if (! config('app.installed')) {
            return $this->failed('APP_INSTALLED 未被 Laravel 加载。', self::EXIT_NOT_INSTALLED);
        }

        foreach ([
            storage_path('app'),
            storage_path('framework/views'),
            storage_path('logs'),
            base_path('bootstrap/cache'),
            base_path('.env'),
        ] as $writablePath) {
            if (! is_writable($writablePath)) {
                return $this->failed('Laravel 运行目录不可写。', self::EXIT_RUNTIME_NOT_WRITABLE);
            }
        }

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

        if ($configuration->current()['mode'] === 'bootstrap') {
            $this->components->info('本地网页和临时引导库已就绪；团队共享数据尚未接入。');
        } else {
            $this->components->info('应用运行正常，当前数据库可查询。团队数据接入状态请运行 system-database:verify 检查。');
        }

        return self::SUCCESS;
    }

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

        return $exitCode;
    }
}