<?php

declare(strict_types=1);

namespace Tests\Feature\Api\Admin;

use App\Mail\Admin\AdminLoginAlertMail;
use App\Models\AdminLoginBlock;
use App\Models\Setting;
use App\Models\User;
use App\Support\Auth\AdminLoginAlert;
use Database\Seeders\TemplateSeeder;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Facades\Mail;
use Spatie\Permission\Models\Role;
use Tests\TestCase;

class LoginThrottleTest extends TestCase
{
    use RefreshDatabase;

    protected function setUp(): void
    {
        parent::setUp();
        Cache::flush();
        Mail::fake();
        (new TemplateSeeder())->seedScenarioIfMissing('admin_login_alert');
    }

    private function login(string $username, string $password, string $ip = '127.0.0.1')
    {
        return $this->withServerVariables(['REMOTE_ADDR' => $ip])
            ->postJson('/api/v1/administrator/login', ['username' => $username, 'password' => $password]);
    }

    private function staff(): User
    {
        return User::factory()->create(['username' => 'staff', 'password' => Hash::make('correct-password-123')]);
    }

    public function test_ip_is_blocked_for_20_minutes_after_more_than_4_failures(): void
    {
        $this->staff();

        for ($i = 4; $i >= 1; $i--) {
            $this->login('staff', 'wrong')->assertUnauthorized()->assertJsonPath('remaining_attempts', $i);
        }

        $this->login('staff', 'wrong')->assertStatus(429);
        $this->login('staff', 'correct-password-123')->assertStatus(429);
        $this->login('someone-else', 'whatever')->assertStatus(429)->assertJsonPath('message', fn ($m) => str_starts_with($m, 'IP của bạn'));

        $this->travel(21)->minutes();
        $this->login('staff', 'correct-password-123')->assertOk();
    }

    public function test_successful_login_does_not_reset_failures_of_the_ip(): void
    {
        $this->staff();
        User::factory()->create(['username' => 'victim', 'password' => Hash::make('victim-password-123')]);

        for ($i = 0; $i < 4; $i++) {
            $this->login('victim', 'guess-' . $i)->assertUnauthorized();
            $this->login('staff', 'correct-password-123')->assertOk();
            $this->app['auth']->forgetGuards();
        }

        $this->login('victim', 'guess-final')->assertStatus(429);
        $this->assertTrue(AdminLoginBlock::where('kind', 'ip')->sole()->isBlocked());
    }

    public function test_account_is_locked_after_failures_from_different_ips(): void
    {
        $this->staff();

        foreach (['10.0.0.1', '10.0.0.2', '10.0.0.3', '10.0.0.4'] as $ip) {
            $this->login('staff', 'wrong', $ip)->assertUnauthorized();
        }
        $this->login('STAFF', 'wrong', '10.0.0.5')->assertStatus(429);

        $this->login('staff', 'correct-password-123', '10.0.0.9')
            ->assertStatus(429)
            ->assertJsonPath('message', fn ($m) => str_starts_with($m, 'Tài khoản này'));
        $this->login('another', 'whatever', '10.0.0.9')->assertUnauthorized();
    }

    public function test_successful_login_alerts_configured_recipients(): void
    {
        $this->staff();

        $this->login('staff', 'correct-password-123')->assertOk();
        Mail::assertQueued(AdminLoginAlertMail::class, fn ($mail) => $mail->hasTo('web@tgs.com.vn'));

        Setting::updateOrCreate(['key' => 'email_settings'], ['value' => json_encode([AdminLoginAlert::SETTING_FIELD => ['it@tgs.com.vn']])]);
        $this->login('staff', 'correct-password-123')->assertOk();
        Mail::assertQueued(AdminLoginAlertMail::class, fn ($mail) => $mail->hasTo('it@tgs.com.vn'));
    }

    public function test_empty_recipient_list_disables_alert(): void
    {
        $this->staff();
        Setting::updateOrCreate(['key' => 'email_settings'], ['value' => json_encode([AdminLoginAlert::SETTING_FIELD => []])]);

        $this->login('staff', 'correct-password-123')->assertOk();
        Mail::assertNothingQueued();
    }

    public function test_admin_can_list_and_unblock_ip(): void
    {
        $this->staff();
        for ($i = 0; $i < 5; $i++) {
            $this->login('staff', 'wrong');
        }

        Role::firstOrCreate(['name' => 'Full Administrator', 'guard_name' => 'admin']);
        $admin = User::factory()->create();
        $admin->assignRole('Full Administrator');

        $items = collect($this->actingAs($admin, 'admin')->getJson('/api/v1/administrator/login-blocks')
            ->assertOk()
            ->assertJsonCount(2, 'data.items')
            ->json('data.items'))->keyBy('kind');
        $this->assertSame('127.0.0.1', $items['ip']['identifier']);
        $this->assertSame('staff', $items['account']['identifier']);

        $this->actingAs($admin, 'admin')->deleteJson("/api/v1/administrator/login-blocks/{$items['ip']['id']}")->assertOk();
        $this->app['auth']->forgetGuards();
        $this->login('staff', 'correct-password-123')->assertStatus(429);

        $this->actingAs($admin, 'admin')->deleteJson("/api/v1/administrator/login-blocks/{$items['account']['id']}")->assertOk();
        $this->app['auth']->forgetGuards();
        $this->login('staff', 'correct-password-123')->assertOk();
    }
}