<?php

namespace Tests\Feature\Services\Auth;

use App\Models\OtpCode;
use App\Services\Auth\OtpService;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Http\Client\Request;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\Http;
use Tests\TestCase;

class OtpServiceTest extends TestCase
{
    use RefreshDatabase;

    protected OtpService $service;

    protected function setUp(): void
    {
        parent::setUp();

        Http::fake();
        $this->service = app(OtpService::class);
    }

    public function test_generate_code_returns_four_digit_numeric_string(): void
    {
        $code = $this->service->generateCode();

        $this->assertMatchesRegularExpression('/^[1-9]\d{3}$/', $code);
    }

    public function test_send_for_phone_stores_code_with_expiry(): void
    {
        Carbon::setTestNow('2026-09-21 10:00:00');

        $otpCode = $this->service->sendForPhone('09120000000');

        $this->assertSame('09120000000', $otpCode->phone);
        $this->assertMatchesRegularExpression('/^\d{4}$/', $otpCode->code);
        $this->assertTrue($otpCode->expires_at->eq(Carbon::parse('2026-09-21 10:03:00')));
        $this->assertDatabaseCount('otp_codes', 1);
    }

    public function test_send_for_phone_uses_custom_minutes(): void
    {
        Carbon::setTestNow('2026-09-21 10:00:00');

        $otpCode = $this->service->sendForPhone('09120000000', 10);

        $this->assertTrue($otpCode->expires_at->eq(Carbon::parse('2026-09-21 10:10:00')));
    }

    public function test_send_for_phone_replaces_existing_code_for_same_phone(): void
    {
        $existing = OtpCode::factory()->create(['phone' => '09120000000', 'code' => '1111']);

        $otpCode = $this->service->sendForPhone('09120000000');

        $this->assertTrue($otpCode->is($existing));
        $this->assertDatabaseCount('otp_codes', 1);
        $this->assertDatabaseMissing('otp_codes', ['phone' => '09120000000', 'code' => '1111']);
    }

    public function test_send_for_phone_sends_verify_code_pattern_sms(): void
    {
        config(['services.iranpayamak.patterns.verify_code' => 'verify-pattern']);

        $otpCode = $this->service->sendForPhone('09120000000');

        Http::assertSent(function (Request $request) use ($otpCode) {
            return $request['code'] === 'verify-pattern'
                && $request['recipient'] === '09120000000'
                && $request['attributes']['otp'] === $otpCode->code;
        });
    }

    public function test_send_for_phone_still_stores_code_when_sms_fails(): void
    {
        Http::fake([config('services.iranpayamak.api_url') => Http::response('error', 500)]);

        $otpCode = $this->service->sendForPhone('09120000000');

        $this->assertDatabaseHas('otp_codes', ['id' => $otpCode->id, 'phone' => '09120000000']);
    }

    public function test_verify_code_returns_true_and_deletes_valid_code(): void
    {
        OtpCode::factory()->create(['phone' => '09120000000', 'code' => '1234']);

        $this->assertTrue($this->service->verifyCode('09120000000', '1234'));
        $this->assertDatabaseCount('otp_codes', 0);
    }

    public function test_verify_code_returns_false_for_wrong_code_and_keeps_record(): void
    {
        OtpCode::factory()->create(['phone' => '09120000000', 'code' => '1234']);

        $this->assertFalse($this->service->verifyCode('09120000000', '0000'));
        $this->assertDatabaseCount('otp_codes', 1);
    }

    public function test_verify_code_returns_false_for_other_phone(): void
    {
        OtpCode::factory()->create(['phone' => '09120000000', 'code' => '1234']);

        $this->assertFalse($this->service->verifyCode('09130000000', '1234'));
        $this->assertDatabaseCount('otp_codes', 1);
    }

    public function test_verify_code_returns_false_for_expired_code(): void
    {
        OtpCode::factory()->expired()->create(['phone' => '09120000000', 'code' => '1234']);

        $this->assertFalse($this->service->verifyCode('09120000000', '1234'));
        $this->assertDatabaseCount('otp_codes', 1);
    }

    public function test_verify_code_returns_false_when_code_expires_exactly_now(): void
    {
        Carbon::setTestNow('2026-09-21 10:00:00');
        OtpCode::factory()->create(['phone' => '09120000000', 'code' => '1234', 'expires_at' => now()]);

        $this->assertFalse($this->service->verifyCode('09120000000', '1234'));
    }

    public function test_verify_code_cannot_be_reused(): void
    {
        OtpCode::factory()->create(['phone' => '09120000000', 'code' => '1234']);

        $this->service->verifyCode('09120000000', '1234');

        $this->assertFalse($this->service->verifyCode('09120000000', '1234'));
    }

    public function test_exists_valid_returns_true_without_deleting_code(): void
    {
        OtpCode::factory()->create(['phone' => '09120000000', 'code' => '1234']);

        $this->assertTrue($this->service->existsValid('09120000000', '1234'));
        $this->assertDatabaseCount('otp_codes', 1);
    }

    public function test_exists_valid_returns_false_for_wrong_code(): void
    {
        OtpCode::factory()->create(['phone' => '09120000000', 'code' => '1234']);

        $this->assertFalse($this->service->existsValid('09120000000', '0000'));
    }

    public function test_exists_valid_returns_false_for_expired_code(): void
    {
        OtpCode::factory()->expired()->create(['phone' => '09120000000', 'code' => '1234']);

        $this->assertFalse($this->service->existsValid('09120000000', '1234'));
    }
}