<?php

use Illuminate\Http\Client\Request as HttpRequest;
use Illuminate\Support\Facades\Http;
use Inertia\Testing\AssertableInertia as Assert;

function studentAuthUserCookie(): string
{
    return json_encode([
        'email' => 'student@example.com',
        'id' => 11,
        'identity_number' => '123456',
        'name' => 'Alma',
        'role' => 'student',
        'status' => 'active',
    ], JSON_THROW_ON_ERROR);
}

test('mahasiswa routes redirect guests to login', function () {
    $this->get(route('mahasiswa'))
        ->assertRedirect(route('login'));
});

test('mahasiswa dashboard page can be rendered through laravel proxy', function () {
    config(['services.rag.base_url' => 'https://rag.test/api/v1']);

    Http::fake([
        'https://rag.test/api/v1/courses*' => Http::response([
            'data' => [
                [
                    'description' => 'Materi struktur data',
                    'id' => 101,
                    'title' => 'Struktur Data',
                ],
            ],
            'limit' => 100,
            'page' => 1,
            'total' => 1,
        ]),
        'https://rag.test/api/v1/chats/sessions*' => Http::response([
            'data' => [
                [
                    'course_id' => '101',
                    'created_at' => '2026-05-01T10:00:00Z',
                    'message_count' => 2,
                    'title' => 'Apa itu stack?',
                    'updated_at' => '2026-05-01T10:00:00Z',
                    'user_id' => 'student-1',
                    'uuid_id' => 'session-1',
                ],
            ],
            'pagination' => [
                'limit' => 20,
                'page' => 1,
                'total' => 1,
                'total_pages' => 1,
            ],
        ]),
    ]);

    $this->withCookie('sevima_raghub_auth_token', 'token')
        ->withCookie('sevima_raghub_auth_user', studentAuthUserCookie())
        ->get(route('mahasiswa'))
        ->assertOk()
        ->assertInertia(fn (Assert $page) => $page
            ->component('mahasiswa')
            ->where('backendMessage', null)
            ->has('courses', 1)
            ->where('courses.0.title', 'Struktur Data')
            ->has('chatSessions', 1)
            ->where('chatSessions.0.uuid_id', 'session-1')
            ->where('selectedCourseId', '101'));

    Http::assertSent(fn (HttpRequest $request): bool => $request->method() === 'GET'
        && str_starts_with($request->url(), 'https://rag.test/api/v1/chats/sessions?')
        && str_contains($request->url(), 'page=1')
        && str_contains($request->url(), 'limit=20')
        && $request->hasHeader('Authorization', 'Bearer token'));
});

test('mahasiswa chat session can be created and initial message sent through laravel proxy', function () {
    config([
        'services.rag.base_url' => 'https://rag.test/api/v1',
        'services.rag.chat_mode' => 'rest',
    ]);

    Http::fake([
        'https://rag.test/api/v1/chats/sessions/session-1/messages' => Http::response([
            'content' => 'Stack adalah struktur data LIFO.',
            'created_at' => '2026-05-01T10:01:00Z',
            'role' => 'assistant',
            'sources' => [],
            'uuid_id' => 'message-1',
        ]),
        'https://rag.test/api/v1/chats/sessions' => Http::response([
            'course_id' => '101',
            'created_at' => '2026-05-01T10:00:00Z',
            'message_count' => 0,
            'title' => 'Apa itu stack?',
            'updated_at' => '2026-05-01T10:00:00Z',
            'user_id' => 'student-1',
            'uuid_id' => 'session-1',
        ], 201),
    ]);

    $this->withCookie('sevima_raghub_auth_token', 'token')
        ->withCookie('sevima_raghub_auth_user', studentAuthUserCookie())
        ->from(route('mahasiswa'))
        ->post(route('mahasiswa.sessions.store'), [
            'course_id' => '101',
            'title' => 'Apa itu stack?',
        ])
        ->assertRedirect(route('mahasiswa.show', ['sessionId' => 'session-1']))
        ->assertSessionMissing('sevima_raghub_pending_initial_chat.session-1')
        ->assertSessionHasNoErrors();

    Http::assertSent(fn (HttpRequest $request): bool => $request->method() === 'POST'
        && $request->url() === 'https://rag.test/api/v1/chats/sessions'
        && $request->hasHeader('Authorization', 'Bearer token')
        && $request['course_id'] === '101'
        && $request['title'] === 'Apa itu stack?');

    Http::assertSent(fn (HttpRequest $request): bool => $request->method() === 'POST'
        && $request->url() === 'https://rag.test/api/v1/chats/sessions/session-1/messages'
        && $request->hasHeader('Authorization', 'Bearer token')
        && $request['content'] === 'Apa itu stack?');
});

test('mahasiswa chat detail page renders session and history from api', function () {
    config([
        'services.rag.base_url' => 'https://rag.test/api/v1',
        'services.rag.chat_mode' => 'rest',
    ]);

    Http::fake([
        'https://rag.test/api/v1/courses*' => Http::response([
            'data' => [
                [
                    'id' => 101,
                    'title' => 'Struktur Data',
                ],
            ],
            'limit' => 100,
            'page' => 1,
            'total' => 1,
        ]),
        'https://rag.test/api/v1/chats/sessions/session-1/messages' => Http::response([
            'data' => [
                [
                    'content' => 'Apa itu stack?',
                    'created_at' => '2026-05-01T10:00:00Z',
                    'role' => 'user',
                    'sources' => [],
                    'uuid_id' => 'user-message-1',
                ],
                [
                    'content' => 'Stack adalah struktur data LIFO.',
                    'created_at' => '2026-05-01T10:01:00Z',
                    'role' => 'assistant',
                    'sources' => [],
                    'uuid_id' => 'message-1',
                ],
            ],
        ]),
        'https://rag.test/api/v1/chats/sessions/session-1' => Http::response([
            'course_id' => '101',
            'created_at' => '2026-05-01T10:00:00Z',
            'message_count' => 2,
            'title' => 'Apa itu stack?',
            'updated_at' => '2026-05-01T10:01:00Z',
            'user_id' => 'student-1',
            'uuid_id' => 'session-1',
        ]),
        'https://rag.test/api/v1/chats/sessions*' => Http::response([
            'data' => [],
            'pagination' => [
                'limit' => 20,
                'page' => 1,
                'total' => 0,
                'total_pages' => 0,
            ],
        ]),
    ]);

    $this->withCookie('sevima_raghub_auth_token', 'token')
        ->withCookie('sevima_raghub_auth_user', studentAuthUserCookie())
        ->get(route('mahasiswa.show', ['sessionId' => 'session-1']))
        ->assertOk()
        ->assertInertia(fn (Assert $page) => $page
            ->component('mahasiswa-chat')
            ->where('sessionId', 'session-1')
            ->where('currentSession.uuid_id', 'session-1')
            ->has('messages', 2)
            ->where('messages.0.role', 'user')
            ->where('messages.1.role', 'assistant')
            ->where('selectedCourseId', '101'));

    Http::assertSent(fn (HttpRequest $request): bool => $request->url() === 'https://rag.test/api/v1/chats/sessions/session-1');
    Http::assertSent(fn (HttpRequest $request): bool => $request->url() === 'https://rag.test/api/v1/chats/sessions/session-1/messages');
});

test('mahasiswa chat detail page can be rendered with direct session messages', function () {
    config([
        'services.rag.base_url' => 'https://rag.test/api/v1',
        'services.rag.chat_mode' => 'direct',
    ]);

    Http::fake([
        'https://rag.test/api/v1/courses*' => Http::response([
            'data' => [
                [
                    'id' => 101,
                    'title' => 'Struktur Data',
                ],
            ],
            'limit' => 100,
            'page' => 1,
            'total' => 1,
        ]),
        'https://rag.test/api/v1/chats/sessions/session-1/messages' => Http::response([
            'data' => [],
        ]),
        'https://rag.test/api/v1/chats/sessions/session-1' => Http::response([
            'course_id' => '101',
            'created_at' => '2026-05-01T10:00:00Z',
            'message_count' => 0,
            'title' => 'Apa itu stack?',
            'updated_at' => '2026-05-01T10:00:00Z',
            'user_id' => 'student-1',
            'uuid_id' => 'session-1',
        ]),
        'https://rag.test/api/v1/chats/sessions*' => Http::response([
            'data' => [],
            'pagination' => [
                'limit' => 20,
                'page' => 1,
                'total' => 0,
                'total_pages' => 0,
            ],
        ]),
    ]);

    $this->withCookie('sevima_raghub_auth_token', 'token')
        ->withCookie('sevima_raghub_auth_user', studentAuthUserCookie())
        ->withSession([
            'sevima_raghub_direct_messages.session-1' => [
                [
                    'content' => 'Jawaban bot',
                    'created_at' => '2026-05-01T10:01:00Z',
                    'role' => 'assistant',
                    'sources' => [],
                    'uuid_id' => 'message-1',
                ],
            ],
        ])
        ->get(route('mahasiswa.show', ['sessionId' => 'session-1']))
        ->assertOk()
        ->assertInertia(fn (Assert $page) => $page
            ->component('mahasiswa-chat')
            ->where('backendMessage', null)
            ->where('sessionId', 'session-1')
            ->where('currentSession.uuid_id', 'session-1')
            ->has('messages', 1)
            ->where('messages.0.content', 'Jawaban bot')
            ->where('selectedCourseId', '101'));
});

test('mahasiswa direct chat message can be sent through laravel proxy', function () {
    config([
        'services.rag.base_url' => 'https://rag.test/api/v1',
        'services.rag.chat_mode' => 'direct',
    ]);

    Http::fake([
        'https://rag.test/api/v1/ai/query' => Http::response([
            'content' => 'Stack adalah struktur data LIFO.',
            'created_at' => '2026-05-01T10:01:00Z',
            'message_id' => 'message-1',
            'role' => 'assistant',
            'sources' => [],
        ]),
    ]);

    $this->withCookie('sevima_raghub_auth_token', 'token')
        ->withCookie('sevima_raghub_auth_user', studentAuthUserCookie())
        ->from(route('mahasiswa.show', ['sessionId' => 'session-1']))
        ->post(route('mahasiswa.messages.store', ['sessionId' => 'session-1']), [
            'content' => 'Apa itu stack?',
            'course_id' => '101',
        ])
        ->assertRedirect(route('mahasiswa.show', ['sessionId' => 'session-1']))
        ->assertSessionHasNoErrors();

    $directMessages = session('sevima_raghub_direct_messages.session-1');

    expect($directMessages)->toHaveCount(2)
        ->and($directMessages[0]['content'])->toBe('Apa itu stack?')
        ->and($directMessages[1]['content'])->toBe('Stack adalah struktur data LIFO.');

    Http::assertSent(fn (HttpRequest $request): bool => $request->method() === 'POST'
        && $request->url() === 'https://rag.test/api/v1/ai/query'
        && $request->hasHeader('Authorization', 'Bearer token')
        && $request['course_id'] === '101'
        && $request['prompt'] === 'Apa itu stack?');
});

test('mahasiswa rest chat message can be sent through laravel proxy', function () {
    config([
        'services.rag.base_url' => 'https://rag.test/api/v1',
        'services.rag.chat_mode' => 'rest',
    ]);

    Http::fake([
        'https://rag.test/api/v1/chats/sessions/session-1/messages' => Http::response([
            'content' => 'Stack adalah struktur data LIFO.',
            'created_at' => '2026-05-01T10:01:00Z',
            'role' => 'assistant',
            'sources' => [],
            'uuid_id' => 'message-1',
        ]),
    ]);

    $this->withCookie('sevima_raghub_auth_token', 'token')
        ->withCookie('sevima_raghub_auth_user', studentAuthUserCookie())
        ->from(route('mahasiswa.show', ['sessionId' => 'session-1']))
        ->post(route('mahasiswa.messages.store', ['sessionId' => 'session-1']), [
            'content' => 'Apa itu stack?',
            'course_id' => '101',
        ])
        ->assertRedirect(route('mahasiswa.show', ['sessionId' => 'session-1']))
        ->assertSessionHasNoErrors();

    Http::assertSent(fn (HttpRequest $request): bool => $request->method() === 'POST'
        && $request->url() === 'https://rag.test/api/v1/chats/sessions/session-1/messages'
        && $request->hasHeader('Authorization', 'Bearer token')
        && $request['content'] === 'Apa itu stack?');
});

test('mahasiswa stream mode json chat message uses rest endpoint', function () {
    config([
        'services.rag.base_url' => 'https://rag.test/api/v1',
        'services.rag.chat_mode' => 'stream',
    ]);

    Http::fake([
        'https://rag.test/api/v1/chats/sessions/session-1/messages' => Http::response([
            'content' => 'Stack adalah struktur data LIFO.',
            'created_at' => '2026-05-01T10:01:00Z',
            'role' => 'assistant',
            'sources' => [],
            'uuid_id' => 'message-1',
        ]),
    ]);

    $this->withCookie('sevima_raghub_auth_token', 'token')
        ->withCookie('sevima_raghub_auth_user', studentAuthUserCookie())
        ->withHeaders(['Accept' => 'application/json'])
        ->postJson(route('mahasiswa.messages.store', ['sessionId' => 'session-1']), [
            'content' => 'Apa itu stack?',
            'course_id' => '101',
        ])
        ->assertSuccessful()
        ->assertJsonPath('assistantMessage.content', 'Stack adalah struktur data LIFO.');

    Http::assertSent(fn (HttpRequest $request): bool => $request->method() === 'POST'
        && $request->url() === 'https://rag.test/api/v1/chats/sessions/session-1/messages'
        && $request->hasHeader('Authorization', 'Bearer token')
        && $request['content'] === 'Apa itu stack?');
});

test('mahasiswa stream chat message forwards backend server sent events', function () {
    config([
        'services.rag.base_url' => 'https://rag.test/api/v1',
        'services.rag.chat_mode' => 'stream',
    ]);

    $streamBody = "data: {\"content\":\"Stack adalah struktur data LIFO.\"}\n\n";

    Http::fake([
        'https://rag.test/api/v1/chats/sessions/session-1/stream' => Http::response(
            $streamBody,
            200,
            ['Content-Type' => 'text/event-stream'],
        ),
    ]);

    $this->withCookie('sevima_raghub_auth_token', 'token')
        ->withCookie('sevima_raghub_auth_user', studentAuthUserCookie())
        ->withHeaders(['Accept' => 'text/event-stream'])
        ->post(route('mahasiswa.messages.store', ['sessionId' => 'session-1']), [
            'content' => 'Apa itu stack?',
            'course_id' => '101',
        ])
        ->assertSuccessful()
        ->assertStreamed()
        ->assertHeader('Content-Type', 'text/event-stream; charset=utf-8')
        ->assertStreamedContent($streamBody);

    Http::assertSent(fn (HttpRequest $request): bool => $request->method() === 'POST'
        && $request->url() === 'https://rag.test/api/v1/chats/sessions/session-1/stream'
        && $request->hasHeader('Authorization', 'Bearer token')
        && $request->hasHeader('Accept', 'text/event-stream')
        && $request['content'] === 'Apa itu stack?');
});

test('mahasiswa chat message uses backend error message', function () {
    config([
        'services.rag.base_url' => 'https://rag.test/api/v1',
        'services.rag.chat_mode' => 'direct',
    ]);

    Http::fake([
        'https://rag.test/api/v1/ai/query' => Http::response([
            'message' => 'I do not know based on available materials.',
        ], 422),
    ]);

    $this->withCookie('sevima_raghub_auth_token', 'token')
        ->withCookie('sevima_raghub_auth_user', studentAuthUserCookie())
        ->from(route('mahasiswa.show', ['sessionId' => 'session-1']))
        ->post(route('mahasiswa.messages.store', ['sessionId' => 'session-1']), [
            'content' => 'Apa itu stack?',
            'course_id' => '101',
        ])
        ->assertRedirect(route('mahasiswa.show', ['sessionId' => 'session-1']))
        ->assertSessionHasErrors(['message' => 'I do not know based on available materials.']);
});

test('mahasiswa chat session can be deleted through laravel proxy', function () {
    config(['services.rag.base_url' => 'https://rag.test/api/v1']);

    Http::fake([
        'https://rag.test/api/v1/chats/sessions/session-1' => Http::response([]),
    ]);

    $this->withCookie('sevima_raghub_auth_token', 'token')
        ->withCookie('sevima_raghub_auth_user', studentAuthUserCookie())
        ->withSession([
            'sevima_raghub_direct_messages.session-1' => [
                [
                    'content' => 'Jawaban bot',
                    'created_at' => '2026-05-01T10:01:00Z',
                    'role' => 'assistant',
                    'sources' => [],
                    'uuid_id' => 'message-1',
                ],
            ],
        ])
        ->from(route('mahasiswa.show', ['sessionId' => 'session-1']))
        ->delete(route('mahasiswa.destroy', ['sessionId' => 'session-1']), [
            'active_session_id' => 'session-1',
        ])
        ->assertRedirect(route('mahasiswa'))
        ->assertSessionMissing('sevima_raghub_direct_messages.session-1')
        ->assertSessionHasNoErrors();

    Http::assertSent(fn (HttpRequest $request): bool => $request->method() === 'DELETE'
        && $request->url() === 'https://rag.test/api/v1/chats/sessions/session-1'
        && $request->hasHeader('Authorization', 'Bearer token'));
});