<?php

namespace Modules\Webstatement\Console;

use Exception;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\Log;
use Modules\Webstatement\Jobs\SendStatementEmailJob;
use Modules\Webstatement\Models\Account;

/**
 * Command untuk mengirim email statement PDF ke nasabah
 *
 * Command ini akan:
 * 1. Memvalidasi parameter input
 * 2. Menjalankan job pengiriman email statement
 * 3. Memberikan feedback ke user tentang status eksekusi
 */
class SendStatementEmailCommand extends Command
{
    /**
     * Signature dan parameter command
     *
     * @var string
     */
    protected $signature = 'webstatement:send-email
                            {period : Format periode YYYY-MM (contoh: 2024-01)}
                            {--account= : Nomor rekening spesifik (opsional)}
                            {--batch-id= : ID batch untuk tracking (opsional)}
                            {--queue=emails : Nama queue untuk job (default: emails)}
                            {--delay=0 : Delay dalam menit sebelum job dijalankan}';

    /**
     * Deskripsi command
     *
     * @var string
     */
    protected $description = 'Mengirim email statement PDF ke nasabah berdasarkan periode';

    /**
     * Menjalankan command
     *
     * @return int
     */
    public function handle()
    {
        $this->info('🚀 Memulai proses pengiriman email statement...');

        try {
            // Ambil parameter
            $period = $this->argument('period');
            $accountNumber = $this->option('account');
            $batchId = $this->option('batch-id');
            $queueName = $this->option('queue');
            $delay = (int) $this->option('delay');

            // Validasi parameter
            if (!$this->validateParameters($period, $accountNumber)) {
                return Command::FAILURE;
            }

            // Log command execution
            Log::info('SendStatementEmailCommand started', [
                'period' => $period,
                'account_number' => $accountNumber,
                'batch_id' => $batchId,
                'queue' => $queueName,
                'delay' => $delay
            ]);

            // Dispatch job
            $job = SendStatementEmailJob::dispatch($period, $accountNumber, $batchId)
                ->onQueue($queueName);

            if ($delay > 0) {
                $job->delay(now()->addMinutes($delay));
                $this->info("⏰ Job dijadwalkan untuk dijalankan dalam {$delay} menit");
            }

            // Tampilkan informasi
            $this->displayJobInfo($period, $accountNumber, $batchId, $queueName);

            $this->info('✅ Job pengiriman email statement berhasil didispatch!');
            $this->info('📊 Gunakan command berikut untuk monitoring:');
            $this->line("   php artisan queue:work {$queueName}");
            $this->line('   php artisan telescope:work (jika menggunakan Telescope)');

            return Command::SUCCESS;

        } catch (Exception $e) {
            $this->error('❌ Error saat mendispatch job: ' . $e->getMessage());

            Log::error('SendStatementEmailCommand failed', [
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);

            return Command::FAILURE;
        }
    }

    /**
     * Validasi parameter input
     *
     * @param string $period
     * @param string|null $accountNumber
     * @return bool
     */
    private function validateParameters($period, $accountNumber = null)
    {
        // Validasi format periode
        if (!preg_match('/^\d{4}\d{2}$/', $period)) {
            $this->error('❌ Format periode tidak valid. Gunakan format YYYYMM (contoh: 202401)');
            return false;
        }

        // Validasi account number jika diberikan
        if ($accountNumber) {
            $account = Account::with('customer')
                             ->where('account_number', $accountNumber)
                             ->first();

            if (!$account) {
                $this->error("❌ Account {$accountNumber} tidak ditemukan");
                return false;
            }

            // Cek apakah ada email (dari stmt_email atau customer email)
            $hasEmail = !empty($account->stmt_email) ||
                       ($account->customer && !empty($account->customer->email));

            if (!$hasEmail) {
                $this->error("❌ Account {$accountNumber} tidak memiliki email (baik di stmt_email maupun customer email)");
                return false;
            }

            $emailSource = !empty($account->stmt_email) ? 'stmt_email' : 'customer email';
            $emailAddress = !empty($account->stmt_email) ? $account->stmt_email : $account->customer->email;

            $this->info("✅ Account {$accountNumber} ditemukan dengan email: {$emailAddress} (dari {$emailSource}) - Cabang: {$account->branch_code}");
        } else {
            // Cek apakah ada account dengan email (dari stmt_email atau customer email)
            $accountCount = Account::with('customer')
                                  ->where('stmt_sent_type', 'BY.EMAIL')
                                  ->get()
                                  ->filter(function ($account) {
                                      return !empty($account->stmt_email) ||
                                             ($account->customer && !empty($account->customer->email));
                                  })
                                  ->count();

            if ($accountCount === 0) {
                $this->error('❌ Tidak ada account dengan email ditemukan (baik di stmt_email maupun customer email)');
                return false;
            }

            $this->info("✅ Ditemukan {$accountCount} account dengan email");
        }

        return true;
    }

    /**
     * Menampilkan informasi job yang akan dijalankan
     *
     * @param string $period
     * @param string|null $accountNumber
     * @param string|null $batchId
     * @param string $queueName
     * @return void
     */
    private function displayJobInfo($period, $accountNumber, $batchId, $queueName)
    {
        $this->info('📋 Detail Job:');
        $this->line("   Periode: {$period}");
        $this->line("   Account: " . ($accountNumber ?: 'Semua account dengan email'));
        $this->line("   Batch ID: " . ($batchId ?: 'Auto-generated'));
        $this->line("   Queue: {$queueName}");

        // Estimasi path file
        if ($accountNumber) {
            $account = Account::where('account_number', $accountNumber)->first();
            if ($account) {
                $pdfPath = "storage/app/combine/{$period}/{$account->branch_code}/{$accountNumber}_{$period}.pdf";
                $this->line("   File PDF: {$pdfPath}");
            }
        } else {
            $this->line("   File PDF: storage/app/combine/{$period}/[branch_code]/[account_number]_{$period}.pdf");
        }
    }
}