<?php

namespace App\Console\Commands;

use App\Services\SettingsRuntimeCanEditSync;
use Illuminate\Console\Command;
use Symfony\Component\Process\Process;

class DeploySettingsConstCommand extends Command
{
    protected $signature = 'settings:deploy
                            {database?* : نام دیتابیس (اختیاری؛ پیش‌فرض DB_DATABASE)}
                            {--file= : مسیر SQL (پیش‌فرض database/sql/deploy_settings_const.sql)}
                            {--preserve : deploy_settings_const_preserve_value_sync_can_edit.sql}';

    protected $description = 'اجرای deploy_settings_const.sql روی DB tenant با اتصال .env';

    public function handle(): int
    {
        $path = $this->resolveSqlPath();
        if ($path === null) {
            return self::FAILURE;
        }

        $cfg = config('database.connections.'.config('database.default'));
        if (($cfg['driver'] ?? '') !== 'mysql') {
            $this->error('فقط mysql پشتیبانی می‌شود.');

            return self::FAILURE;
        }

        $host = (string) ($cfg['host'] ?? '127.0.0.1');
        $port = (string) ($cfg['port'] ?? '3306');
        $user = (string) ($cfg['username'] ?? '');
        $pass = (string) ($cfg['password'] ?? '');
        $defaultDb = (string) ($cfg['database'] ?? '');

        if ($user === '') {
            $this->error('DB_USERNAME در .env خالی است.');

            return self::FAILURE;
        }

        $databases = $this->argument('database');
        if ($databases === [] || $databases === null) {
            if ($defaultDb === '') {
                $this->error('نام DB ندهید → DB_DATABASE را در .env بگذارید یا آرگومان بدهید.');

                return self::FAILURE;
            }
            $databases = [$defaultDb];
        }

        $mysql = $this->findMysqlBinary();
        if ($mysql === null) {
            $this->error('mysql client پیدا نشد. نصب کنید یا اجرا کنید: bash database/sql/run_deploy_settings.sh');

            return self::FAILURE;
        }

        $sql = file_get_contents($path);
        if ($sql === false || trim($sql) === '') {
            $this->error("فایل SQL خالی یا غیرقابل خواندن: {$path}");

            return self::FAILURE;
        }

        $extraPath = database_path('sql/settings_menu_and_show_to_user.sql');
        if (is_file($extraPath)) {
            $extraSql = file_get_contents($extraPath);
            if ($extraSql !== false && trim($extraSql) !== '') {
                $sql .= "\n".$extraSql;
            }
        }

        foreach ($databases as $db) {
            $db = trim((string) $db);
            if ($db === '') {
                continue;
            }

            $this->info("==> {$path} → {$db} @ {$host}:{$port}");

            $process = new Process([
                $mysql,
                '-h', $host,
                '-P', $port,
                '-u', $user,
                '--default-character-set=utf8mb4',
                $db,
            ], null, ['MYSQL_PWD' => $pass]);
            $process->setInput($sql);
            $process->setTimeout(null);
            $process->run(function ($type, $buffer) {
                $line = trim($buffer);
                if ($line === '') {
                    return;
                }
                if ($type === Process::ERR) {
                    $this->error($line);
                } else {
                    $this->line($line);
                }
            });

            if (! $process->isSuccessful()) {
                $this->error("خطا روی دیتابیس: {$db}");

                return self::FAILURE;
            }

            $this->syncRuntimeCanEdit($db);

            $this->info("    done: {$db}");
        }

        $this->info('==> all done');

        return self::SUCCESS;
    }

    private function resolveSqlPath(): ?string
    {
        if ($this->option('preserve')) {
            $relative = 'database/sql/deploy_settings_const_preserve_value_sync_can_edit.sql';
        } else {
            $relative = $this->option('file') ?: 'database/sql/deploy_settings_const.sql';
        }

        $path = str_starts_with($relative, '/')
            ? $relative
            : base_path($relative);

        if (! is_file($path)) {
            $this->error("فایل SQL پیدا نشد: {$path}");

            return null;
        }

        return $path;
    }

    private function syncRuntimeCanEdit(string $database): void
    {
        try {
            $sync = app(SettingsRuntimeCanEditSync::class);
            $sync->useDatabase($database);
            $updated = $sync->sync();
            $this->line("    can_edit sync: {$updated} row(s) updated");

            $status = $sync->statusMap();
            if ($status !== []) {
                $preview = collect($status)
                    ->map(fn ($canEdit, $key) => "{$key}={$canEdit}")
                    ->implode(', ');
                $this->line("    can_edit sample: {$preview}");
            }

            $violations = $sync->violations();
            if ($violations !== []) {
                $this->warn('    WARN: runtime keys still can_edit≠1: '.implode(', ', array_keys($violations)));
            }

            $advancedViolations = $sync->advancedViolations();
            if ($advancedViolations !== []) {
                $this->warn('    WARN: advanced keys still can_edit≠0: '.implode(', ', array_keys($advancedViolations)));
            }

            $fee = \App\Models\Setting::query()
                ->where('key', 'fee_deduct_from_gold')
                ->first(['key', 'can_edit']);
            if ($fee) {
                $this->line("    check fee_deduct_from_gold can_edit={$fee->can_edit}");
            }
        } catch (\Throwable $e) {
            $this->warn('    runtime can_edit sync skipped: '.$e->getMessage());
        }
    }

    private function findMysqlBinary(): ?string
    {
        $process = new Process(['command', '-v', 'mysql']);
        $process->run();
        if ($process->isSuccessful()) {
            $bin = trim($process->getOutput());
            if ($bin !== '') {
                return $bin;
            }
        }

        foreach (['/usr/bin/mysql', '/usr/local/bin/mysql'] as $candidate) {
            if (is_executable($candidate)) {
                return $candidate;
            }
        }

        return null;
    }
}