<?php

declare(strict_types=1);

namespace Tests\Feature\Api\Client;

use App\Mail\Customer\PasswordResetLink;
use App\Models\Customer;
use App\Models\RefreshToken;
use App\Services\Api\Client\ClientAuthService;
use App\Support\PasswordResetToken;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Facades\Mail;
use Illuminate\Support\Facades\Storage;
use Tests\TestCase;

class ClientAuthSecurityTest extends TestCase
{
    use RefreshDatabase;


    private function api(): static
    {
        return $this->withHeaders(['x-access-token' => $this->buildClientAccessToken()]);
    }

    public function test_access_token_older_than_skew_window_is_rejected(): void
    {
        $this->withHeaders(['x-access-token' => $this->buildClientAccessToken(time() - 3600)])
            ->getJson('/v1/banks')
            ->assertStatus(403);
    }

    public function test_verify_email_code_is_invalidated_after_too_many_wrong_attempts(): void
    {
        $customer = Customer::factory()->create([
            'status'                       => 0,
            'email_verify_code'            => '123456',
            'email_verify_code_expired_at' => now()->addMinutes(5),
        ]);

        for ($i = 0; $i < 5; $i++) {
            $this->api()->postJson('/v1/client/verify-email', ['email' => $customer->email, 'code' => '000000'])
                ->assertStatus(422);
        }

        // Lần sai thứ 5 huỷ mã: mã đúng cũng vô dụng, phải gửi lại.
        $this->assertNull($customer->fresh()->email_verify_code);
        $this->assertSame(0, (int) $customer->fresh()->status);

        // throttle:client-auth khoá theo email: lần thứ 6 trong phút bị chặn, email khác vẫn qua.
        $this->api()->postJson('/v1/client/verify-email', ['email' => $customer->email, 'code' => '123456'])
            ->assertStatus(429);
        $this->api()->postJson('/v1/client/verify-email', ['email' => 'other@example.com', 'code' => '123456'])
            ->assertStatus(422);
    }

    public function test_forgot_password_sends_link_without_changing_password_and_reset_revokes_sessions(): void
    {
        Mail::fake();
        $customer = Customer::factory()->create(['status' => 1]);
        $oldHash = $customer->password;
        RefreshToken::create(['customer_id' => $customer->id, 'token' => 'x', 'expires_at' => now()->addDay()]);

        $this->api()->postJson('/v1/client/forgot-password', ['email' => strtoupper($customer->email)])->assertOk();

        $this->assertSame($oldHash, $customer->fresh()->password);
        $token = null;
        Mail::assertQueued(PasswordResetLink::class, function (PasswordResetLink $mail) use ($customer, &$token) {
            $html = $mail->render();
            preg_match('#/dat-lai-mat-khau\?t=([0-9a-z]+)#', $html, $match);
            $token = $match[1] ?? null;

            return $mail->hasTo($customer->email)
                && !str_contains($html, 'email=')
                && str_contains($html, '60 phút');
        });

        $this->assertNotNull($token);
        $this->assertSame(PasswordResetToken::LENGTH, strlen($token));
        $this->assertTrue(PasswordResetToken::isWellFormed($token));

        $this->api()->getJson('/v1/client/reset-password/' . $token)
            ->assertOk()
            ->assertJsonPath('data.email', $customer->email);

        $this->api()->postJson('/v1/client/reset-password', [
            'token' => $token, 'password' => 'NewPass1234', 'password_confirmation' => 'NewPass1234',
        ])->assertOk();

        $this->assertTrue(Hash::check('NewPass1234', $customer->fresh()->password));
        $this->assertSame(0, RefreshToken::where('customer_id', $customer->id)->count());

        $this->api()->getJson('/v1/client/reset-password/' . $token)->assertNotFound();
        $this->api()->postJson('/v1/client/reset-password', [
            'token' => $token, 'password' => 'Other12345', 'password_confirmation' => 'Other12345',
        ])->assertStatus(422);
    }

    public function test_reset_token_rejects_tampered_unknown_expired_and_superseded_tokens(): void
    {
        $customer = Customer::factory()->create(['status' => 1]);
        $token = PasswordResetToken::issue($customer);

        $lastChar = $token[PasswordResetToken::LENGTH - 1];
        $tampered = substr($token, 0, -1) . ($lastChar === 'a' ? 'b' : 'a');
        $this->assertFalse(PasswordResetToken::isWellFormed($tampered));
        $this->assertFalse(PasswordResetToken::isWellFormed(substr($token, 0, -1)));
        $this->assertFalse(PasswordResetToken::isWellFormed(strtoupper($token)));
        $this->api()->getJson('/v1/client/reset-password/' . $tampered)->assertNotFound();

        $this->assertNull(PasswordResetToken::issue($customer), 'throttled within 60s');

        $this->travel(61)->seconds();
        $newer = PasswordResetToken::issue($customer);
        $this->assertNotNull($newer);
        $this->assertNull(PasswordResetToken::findCustomer($token), 'old link revoked when a new one is issued');
        $this->assertSame($customer->id, PasswordResetToken::findCustomer($newer)?->id);

        $other = Customer::factory()->create(['status' => 1]);
        $otherToken = PasswordResetToken::issue($other);
        $this->assertSame($other->id, PasswordResetToken::findCustomer($otherToken)?->id);

        $this->travel(61)->minutes();
        $this->assertNull(PasswordResetToken::findCustomer($newer), 'expired after 60 minutes');
        $this->api()->postJson('/v1/client/reset-password', [
            'token' => $newer, 'password' => 'NewPass1234', 'password_confirmation' => 'NewPass1234',
        ])->assertStatus(422);
    }

    public function test_locked_account_loses_api_access_even_with_unexpired_jwt(): void
    {
        $customer = Customer::factory()->create(['status' => 1]);
        $token = \Tymon\JWTAuth\Facades\JWTAuth::fromUser($customer);

        $this->api()->withHeaders(['Authorization' => "Bearer {$token}"])->getJson('/v1/client/me')->assertOk();

        $customer->update(['status' => 3]);
        $this->app['auth']->forgetGuards();

        $this->api()->withHeaders(['Authorization' => "Bearer {$token}"])->getJson('/v1/client/me')->assertUnauthorized();
    }

    public function test_cccd_details_are_not_exposed_to_client(): void
    {
        Storage::fake('local');
        Storage::disk('local')->put('cccd/front.jpg', 'img');
        Storage::disk('local')->put('cccd/back.jpg', 'img');
        $customer = Customer::factory()->create([
            'status'                => 1,
            'identity_number'       => '079123456789',
            'front_identity_number' => 'cccd/front.jpg',
            'back_identity_number'  => 'cccd/back.jpg',
        ]);

        $me = $this->actingAs($customer, 'client')->api()->getJson('/v1/client/me')->assertOk();
        $data = $me->json('data.client.customer');

        $this->assertTrue($data['cccd_updated']);
        $this->assertArrayNotHasKey('cmnd', $data);
        $this->assertArrayNotHasKey('cmnd_before', $data);
        $this->assertArrayNotHasKey('cmnd_after', $data);
        $this->api()->get("/v1/client/cccd/{$customer->id}/front")->assertNotFound();
    }

    public function test_phone_is_masked_to_last_three_digits_in_client_response(): void
    {
        $customer = Customer::factory()->create([
            'status' => 1,
            'phone' => '0929768789',
        ]);

        $this->actingAs($customer, 'client')->api()->getJson('/v1/client/me')
            ->assertOk()
            ->assertJsonPath('data.client.customer.phone', '*******789');

        $this->actingAs($customer->fresh(), 'client')->api()->putJson('/v1/client/update', [
            'fullname' => 'Bảo',
            'company' => 'Công ty mới',
        ])->assertOk();

        $this->assertSame('0929768789', $customer->fresh()->phone);
    }

    public function test_access_token_is_revoked_when_password_changes(): void
    {
        $customer = Customer::factory()->create(['status' => 1, 'password' => Hash::make('OldPass123')]);
        $jwt = \Tymon\JWTAuth\Facades\JWTAuth::fromUser($customer);
        $call = fn () => $this->api()->withHeader('Authorization', "Bearer {$jwt}")->getJson('/v1/client/me');

        $call()->assertOk();

        $this->api()->withHeader('Authorization', "Bearer {$jwt}")->putJson('/v1/client/change-password', [
            'current_password' => 'OldPass123', 'password' => 'NewPass123', 'password_confirmation' => 'NewPass123',
        ])->assertOk();

        $this->app['auth']->forgetGuards();
        $call()->assertStatus(401);
    }

    public function test_throttle_uses_client_ip_from_encrypted_payload_not_next_server_ip(): void
    {
        // Cùng REMOTE_ADDR (Next server) nhưng IP khách khác nhau → không bị đếm chung.
        foreach (['203.0.113.1', '203.0.113.2'] as $ip) {
            for ($i = 0; $i < 60; $i++) {
                $this->withHeaders(['x-access-token' => $this->buildClientAccessToken(null, $ip)])
                    ->getJson('/v1/banks')->assertOk();
            }
        }

        $this->withHeaders(['x-access-token' => $this->buildClientAccessToken(null, '203.0.113.1')])
            ->getJson('/v1/banks')->assertStatus(429);
    }

    public function test_logout_revokes_refresh_token_so_it_cannot_be_used_again(): void
    {
        $customer = Customer::factory()->create(['status' => 1]);
        $jwt = \Tymon\JWTAuth\Facades\JWTAuth::fromUser($customer);
        $rawRefreshToken = 'raw-refresh-token';
        RefreshToken::create([
            'customer_id' => $customer->id,
            'token'       => hash('sha256', $rawRefreshToken),
            'expires_at'  => now()->addDays(30),
        ]);

        $this->api()->withHeader('Authorization', "Bearer {$jwt}")
            ->postJson('/v1/client/logout', ['refresh_token' => $rawRefreshToken])
            ->assertOk();

        $this->assertSame(0, RefreshToken::where('customer_id', $customer->id)->count());

        $this->api()->postJson('/v1/client/refresh', ['refresh_token' => $rawRefreshToken])
            ->assertStatus(401);
    }

    public function test_reused_rotated_refresh_token_revokes_all_tokens_of_customer(): void
    {
        $customer = Customer::factory()->create(['status' => 1]);
        $rawRefreshToken = 'raw-refresh-token';
        RefreshToken::create([
            'customer_id' => $customer->id,
            'token'       => hash('sha256', $rawRefreshToken),
            'expires_at'  => now()->addDays(30),
        ]);

        // Rotation hợp lệ lần đầu: đánh dấu token cũ đã dùng, cấp token mới.
        $first = $this->api()->postJson('/v1/client/refresh', ['refresh_token' => $rawRefreshToken])->assertOk();
        $newRawRefreshToken = $first->json('data.refresh_token');
        $this->assertNotSame($rawRefreshToken, $newRawRefreshToken);
        // Token cũ vẫn còn nhưng đã đánh dấu revoked_at, cộng token mới vừa cấp.
        $this->assertSame(2, RefreshToken::where('customer_id', $customer->id)->count());

        $this->travel(ClientAuthService::REFRESH_TOKEN_REUSE_GRACE_SECONDS + 1)->seconds();

        // Dùng lại token cũ (đã rotate): coi như bị lộ, thu hồi toàn bộ token của khách.
        $this->api()->postJson('/v1/client/refresh', ['refresh_token' => $rawRefreshToken])
            ->assertStatus(401);

        $this->assertSame(0, RefreshToken::where('customer_id', $customer->id)->count());

        // Token mới (hợp lệ, chưa dùng) cũng đã bị thu hồi theo.
        $this->api()->postJson('/v1/client/refresh', ['refresh_token' => $newRawRefreshToken])
            ->assertStatus(401);
    }

    public function test_concurrent_refresh_within_grace_window_does_not_revoke_sessions(): void
    {
        $customer = Customer::factory()->create(['status' => 1]);
        $rawRefreshToken = 'raw-refresh-token';
        RefreshToken::create([
            'customer_id' => $customer->id,
            'token'       => hash('sha256', $rawRefreshToken),
            'expires_at'  => now()->addDays(30),
        ]);

        $first = $this->api()->postJson('/v1/client/refresh', ['refresh_token' => $rawRefreshToken])->assertOk();
        $second = $this->api()->postJson('/v1/client/refresh', ['refresh_token' => $rawRefreshToken])->assertOk();

        foreach ([$first, $second] as $response) {
            $this->api()->postJson('/v1/client/refresh', ['refresh_token' => $response->json('data.refresh_token')])
                ->assertOk();
        }
    }

    public function test_incomplete_legacy_cccd_is_reported_only_as_not_updated(): void
    {
        $customer = Customer::factory()->create(['status' => 1, 'front_identity_number' => '/uploads/2023/11/06/abc.jpg']);

        $data = $this->actingAs($customer, 'client')->api()->getJson('/v1/client/me')
            ->assertOk()
            ->json('data.client.customer');

        $this->assertFalse($data['cccd_updated']);
        $this->assertArrayNotHasKey('cmnd_before', $data);
    }

    public function test_profile_update_accepts_gender_enum_values_only(): void
    {
        $customer = Customer::factory()->create(['status' => 1, 'gender' => 0])->fresh();
        $payload = ['fullname' => 'Bảo', 'phone' => '0929768789'];

        $this->actingAs($customer, 'client')->api()
            ->putJson('/v1/client/update', $payload + ['gender' => 1])
            ->assertOk()
            ->assertJsonPath('data.client.customer.gender', 1)
            ->assertJsonPath('data.client.customer.gender_label', 'Nữ');

        $this->actingAs($customer->fresh(), 'client')->api()
            ->putJson('/v1/client/update', $payload + ['gender' => 2])
            ->assertStatus(422);
    }

    public function test_profile_update_saves_birthday_and_validates_ward_belongs_to_province(): void
    {
        $customer = Customer::factory()->create(['status' => 1])->fresh();
        $payload = ['fullname' => 'Bảo', 'phone' => '0929768789'];

        $this->actingAs($customer, 'client')->api()
            ->putJson('/v1/client/update', $payload + [
                'birthday'      => '1995-06-20',
                'province_code' => '79',
                'ward_code'     => '27448',
            ])
            ->assertOk()
            ->assertJsonPath('data.client.customer.birthday', '1995-06-20')
            ->assertJsonPath('data.client.customer.province_code', '79')
            ->assertJsonPath('data.client.customer.province', 'Hồ Chí Minh')
            ->assertJsonPath('data.client.customer.ward', 'Bình Trị Đông');

        $this->actingAs($customer->fresh(), 'client')->api()
            ->putJson('/v1/client/update', $payload + ['province_code' => '01', 'ward_code' => '27448'])
            ->assertStatus(422)
            ->assertJsonValidationErrors(['ward_code']);

        $this->actingAs($customer->fresh(), 'client')->api()
            ->putJson('/v1/client/update', $payload + ['birthday' => now()->addDay()->toDateString()])
            ->assertStatus(422)
            ->assertJsonValidationErrors(['birthday']);

        $this->api()->getJson('/v1/provinces')->assertOk()->assertJsonCount(34, 'data');
        $this->api()->getJson('/v1/provinces/79/wards')->assertOk()->assertJsonFragment(['code' => '27448']);
    }
}