"""Contract tests for dashboard routes"""
import pytest
import os
import yaml
import io
from unittest.mock import Mock, patch
from app.models.user import User


@pytest.fixture
def test_product(app):
    """Create a test product with feedback"""
    with app.app_context():
        # Create test product directory and config
        product_dir = os.path.join(app.config['DATA_DIR'], 'products', 'test-product')
        os.makedirs(product_dir, exist_ok=True)

        # Create product config
        config_file = os.path.join(product_dir, 'config.yaml')
        config_data = {
            'product_id': 'test-product',
            'name': 'Test Product',
            'submission_url_slug': 'test-product',
            'owner_language': 'en',
            'assigned_owner_ids': ['usr_owner1'],
            'status': 'active'
        }

        with open(config_file, 'w') as f:
            yaml.dump(config_data, f)

        # Create feedback directory
        feedback_dir = os.path.join(product_dir, 'feedback')
        os.makedirs(feedback_dir, exist_ok=True)

        # Create test feedback
        feedback_id = 'test-feedback-001'
        feedback_path = os.path.join(feedback_dir, feedback_id)
        os.makedirs(feedback_path, exist_ok=True)

        # Create feedback metadata
        metadata = {
            'feedback_id': feedback_id,
            'product_id': 'test-product',
            'status': 'new',
            'submitted_at': '2025-10-16T10:00:00Z',
            'has_attachments': True,
            'attachment_count': 1,
            'category': 'bug',
            'original_language': 'en'
        }

        with open(os.path.join(feedback_path, 'metadata.yaml'), 'w') as f:
            yaml.dump(metadata, f)

        # Create feedback content
        with open(os.path.join(feedback_path, 'content.txt'), 'w') as f:
            f.write('Test feedback content')

        # Create attachments directory and file
        attachments_dir = os.path.join(feedback_path, 'attachments')
        os.makedirs(attachments_dir, exist_ok=True)

        with open(os.path.join(attachments_dir, 'test.txt'), 'w') as f:
            f.write('test attachment content')

        yield {
            'product_id': 'test-product',
            'feedback_id': feedback_id
        }


@pytest.fixture
def test_users(app):
    """Create test users (admin and product owner)"""
    users_file = os.path.join(app.config['DATA_DIR'], 'users.yaml')

    # User model expects format: {'users': {user_id: user_data}}
    users_data = {
        'users': {
            'usr_admin': {
                'user_id': 'usr_admin',
                'username': 'admin',
                'email': 'admin@example.com',
                'password_hash': User.hash_password('admin123'),
                'role': 'administrator',
                'product_ids': [],
                'is_active': True
            },
            'usr_owner1': {
                'user_id': 'usr_owner1',
                'username': 'owner1',
                'email': 'owner1@example.com',
                'password_hash': User.hash_password('owner123'),
                'role': 'product_owner',
                'product_ids': ['test-product'],
                'is_active': True
            },
            'usr_owner2': {
                'user_id': 'usr_owner2',
                'username': 'owner2',
                'email': 'owner2@example.com',
                'password_hash': User.hash_password('owner456'),
                'role': 'product_owner',
                'product_ids': ['other-product'],
                'is_active': True
            }
        }
    }

    with open(users_file, 'w') as f:
        yaml.dump(users_data, f)

    yield users_data


@pytest.mark.contract
def test_get_login(client):
    """T093: Contract test for GET /login

    Expected: 200 OK with HTML login form
    """
    response = client.get('/login')

    assert response.status_code == 200
    assert b'<form' in response.data
    assert b'username' in response.data.lower() or b'email' in response.data.lower()
    assert b'password' in response.data.lower()


@pytest.mark.contract
def test_post_login_valid_credentials(client, app, test_users):
    """T094: Contract test for POST /login with valid credentials

    Expected: 302 redirect to dashboard with session established
    """
    data = {
        'username': 'admin',
        'password': 'admin123'
    }

    response = client.post('/login', data=data, follow_redirects=False)

    # Should redirect (302) to dashboard or home
    assert response.status_code == 302

    # Follow redirect and verify user is logged in
    response_redirected = client.get(response.location, follow_redirects=True)
    assert response_redirected.status_code == 200


@pytest.mark.contract
def test_post_login_invalid_credentials(client, app, test_users):
    """T095: Contract test for POST /login with invalid credentials (401)

    Expected: 401 Unauthorized or redirect back to login with error message
    """
    data = {
        'username': 'admin',
        'password': 'wrongpassword'
    }

    response = client.post('/login', data=data)

    # Should return error (401 or 200 with error message)
    assert response.status_code in [200, 401]

    if response.status_code == 200:
        # If returns 200, should show error message
        assert b'invalid' in response.data.lower() or b'incorrect' in response.data.lower() or b'error' in response.data.lower()


@pytest.mark.contract
def test_get_logout(client, app, test_users):
    """T096: Contract test for GET /logout

    Expected: 302 redirect to login or home, session cleared
    """
    # First login
    client.post('/login', data={'username': 'admin', 'password': 'admin123'})

    # Then logout
    response = client.get('/logout', follow_redirects=False)

    assert response.status_code == 302


@pytest.mark.contract
def test_get_dashboard_authenticated(client, app, test_users, test_product):
    """T097: Contract test for GET /dashboard (authenticated)

    Expected: 200 OK with dashboard showing feedback list
    """
    # Login first
    client.post('/login', data={'username': 'admin', 'password': 'admin123'})

    response = client.get('/dashboard')

    assert response.status_code == 200
    assert b'feedback' in response.data.lower() or b'dashboard' in response.data.lower()


@pytest.mark.contract
def test_get_dashboard_unauthenticated(client):
    """T098: Contract test for GET /dashboard (unauthenticated redirect)

    Expected: 302 redirect to login page
    """
    response = client.get('/dashboard', follow_redirects=False)

    # Should redirect to login
    assert response.status_code == 302
    assert '/login' in response.location


@pytest.mark.contract
def test_get_dashboard_with_filters(client, app, test_users, test_product):
    """T099: Contract test for GET /dashboard with filters

    Expected: 200 OK with filtered feedback list
    """
    # Login first
    client.post('/login', data={'username': 'admin', 'password': 'admin123'})

    # Request with filters
    response = client.get('/dashboard?category=bug&status=new')

    assert response.status_code == 200


@pytest.mark.contract
def test_get_dashboard_with_search(client, app, test_users, test_product):
    """T100: Contract test for GET /dashboard with search query

    Expected: 200 OK with search results
    """
    # Login first
    client.post('/login', data={'username': 'admin', 'password': 'admin123'})

    # Request with search query
    response = client.get('/dashboard?search=test')

    assert response.status_code == 200


@pytest.mark.contract
def test_get_feedback_detail(client, app, test_users, test_product):
    """T101: Contract test for GET /feedback/{id} detail view

    Expected: 200 OK with feedback detail page showing content, metadata, attachments
    """
    # Login first
    client.post('/login', data={'username': 'admin', 'password': 'admin123'})

    feedback_id = test_product['feedback_id']
    response = client.get(f'/feedback/{feedback_id}')

    assert response.status_code == 200
    assert b'Test feedback content' in response.data or b'feedback' in response.data.lower()


@pytest.mark.contract
def test_post_feedback_status_update(client, app, test_users, test_product):
    """T102: Contract test for POST /feedback/{id}/status update

    Expected: 200/302 success, metadata.yaml updated with new status
    """
    # Login first
    client.post('/login', data={'username': 'admin', 'password': 'admin123'})

    feedback_id = test_product['feedback_id']

    data = {
        'status': 'in_progress'
    }

    response = client.post(f'/feedback/{feedback_id}/status', data=data)

    # Should succeed
    assert response.status_code in [200, 302]


@pytest.mark.contract
def test_get_attachment_download(client, app, test_users, test_product):
    """T103: Contract test for GET /feedback/{id}/attachment/{filename} download

    Expected: 200 OK with file content, correct Content-Disposition header
    """
    # Login first
    client.post('/login', data={'username': 'admin', 'password': 'admin123'})

    feedback_id = test_product['feedback_id']

    response = client.get(f'/feedback/{feedback_id}/attachment/test.txt')

    assert response.status_code == 200
    assert b'test attachment content' in response.data
    # Should have download headers
    assert 'Content-Disposition' in response.headers or 'content-disposition' in response.headers


@pytest.mark.contract
def test_access_control_owner_products(client, app, test_users, test_product):
    """T104: Contract test for access control (owner sees only assigned products)

    Expected: Product owner can only access feedback for their assigned products
    """
    # Login as owner1 (has access to test-product)
    client.post('/login', data={'username': 'owner1', 'password': 'owner123'})

    feedback_id = test_product['feedback_id']

    # Should have access to feedback from test-product
    response = client.get(f'/feedback/{feedback_id}')
    assert response.status_code == 200

    # Logout
    client.get('/logout')

    # Login as owner2 (only has access to other-product)
    client.post('/login', data={'username': 'owner2', 'password': 'owner456'})

    # Should NOT have access to feedback from test-product
    response = client.get(f'/feedback/{feedback_id}')
    assert response.status_code == 403  # Forbidden


@pytest.mark.contract
def test_post_trigger_analysis_success(client, app, test_users, test_product):
    """Contract test for POST /feedback/{id}/analyze - manual analysis trigger

    Expected: 302 redirect with success message, status updated to 'analyzed'
    """
    # Login first
    client.post('/login', data={'username': 'admin', 'password': 'admin123'})

    feedback_id = test_product['feedback_id']

    # Mock the Claude API response
    mock_api_response = Mock()
    mock_api_response.content = [Mock(text="""
# Feedback Analysis

**Category**: bug

**Original Language**: en

**Summary**: User reports a test feedback issue

**Translation**: (same as original)
""")]

    # Patch AI analyzer
    with patch('app.routes.dashboard.ClaudeAnalyzer') as mock_analyzer_class:
        mock_analyzer = Mock()
        mock_analyzer.analyze_feedback.return_value = Mock(
            category='bug',
            original_language='en',
            summary='User reports a test feedback issue',
            translation='(same as original)',
            raw_analysis=mock_api_response.content[0].text
        )
        mock_analyzer_class.return_value = mock_analyzer

        with patch('app.routes.dashboard.os.getenv', return_value='test-api-key'):
            response = client.post(f'/feedback/{feedback_id}/analyze', follow_redirects=False)

    # Should redirect
    assert response.status_code == 302
    assert f'/feedback/{feedback_id}' in response.location

    # Verify analysis was saved
    with app.app_context():
        data_dir = app.config['DATA_DIR']
        analysis_file = os.path.join(
            data_dir, 'products', 'test-product', 'feedback', feedback_id, 'analysis.md'
        )
        assert os.path.exists(analysis_file)


@pytest.mark.contract
def test_post_trigger_analysis_no_content(client, app, test_users, test_product):
    """Contract test for POST /feedback/{id}/analyze - feedback with empty text content

    Expected: 302 redirect with error message
    """
    # Create feedback with empty content.txt
    with app.app_context():
        product_dir = os.path.join(app.config['DATA_DIR'], 'products', 'test-product')
        feedback_id = 'test-feedback-empty-text'
        feedback_path = os.path.join(product_dir, 'feedback', feedback_id)
        os.makedirs(feedback_path, exist_ok=True)

        metadata = {
            'feedback_id': feedback_id,
            'product_id': 'test-product',
            'status': 'new',
            'submitted_at': '2025-10-16T10:00:00Z',
            'has_attachments': True,
            'attachment_count': 1
        }

        with open(os.path.join(feedback_path, 'metadata.yaml'), 'w') as f:
            yaml.dump(metadata, f)

        # Create empty content.txt
        with open(os.path.join(feedback_path, 'content.txt'), 'w') as f:
            f.write('')

        # Create attachments directory to show this has attachments only
        attachments_dir = os.path.join(feedback_path, 'attachments')
        os.makedirs(attachments_dir, exist_ok=True)
        with open(os.path.join(attachments_dir, 'image.png'), 'w') as f:
            f.write('fake image data')

    # Login and try to analyze
    client.post('/login', data={'username': 'admin', 'password': 'admin123'})
    response = client.post(f'/feedback/{feedback_id}/analyze', follow_redirects=True)

    # Should show error message
    assert response.status_code == 200
    assert b'Cannot analyze' in response.data or b'no text content' in response.data


@pytest.mark.contract
def test_post_trigger_analysis_unauthenticated(client, app, test_product):
    """Contract test for POST /feedback/{id}/analyze - unauthenticated access

    Expected: 302 redirect to login
    """
    feedback_id = test_product['feedback_id']
    response = client.post(f'/feedback/{feedback_id}/analyze', follow_redirects=False)

    # Should redirect to login
    assert response.status_code == 302
    assert '/login' in response.location