"""Contract tests for submission routes"""
import pytest
import io
import os
import yaml


@pytest.fixture
def test_product(app):
    """Create a test product"""
    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_0001'],
            'status': 'active'
        }

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

        yield 'test-product'


@pytest.mark.contract
def test_get_submission_form(client, test_product):
    """T030: Contract test for GET /submit/{product_slug}

    Expected: 200 OK with HTML form containing textarea and file inputs
    """
    response = client.get('/submit/test-product')

    assert response.status_code == 200
    assert b'<form' in response.data
    assert b'textarea' in response.data or b'<textarea' in response.data
    assert b'type="file"' in response.data


@pytest.mark.contract
def test_post_submission_text_only(client, test_product):
    """T031: Contract test for POST /submit/{product_slug} with text only

    Expected: 200/302 success with confirmation message
    """
    data = {
        'feedback_text': 'This is my feedback about the product.'
    }

    response = client.post('/submit/test-product', data=data, follow_redirects=True)

    assert response.status_code == 200
    assert b'success' in response.data.lower() or b'thank' in response.data.lower()


@pytest.mark.contract
def test_post_submission_files_only(client, test_product):
    """T032: Contract test for POST /submit/{product_slug} with files only

    Expected: 200/302 success with confirmation message
    """
    data = {
        'files': [
            (io.BytesIO(b'test file content'), 'test.txt')
        ]
    }

    response = client.post('/submit/test-product',
                          data=data,
                          content_type='multipart/form-data',
                          follow_redirects=True)

    assert response.status_code == 200
    assert b'success' in response.data.lower() or b'thank' in response.data.lower()


@pytest.mark.contract
def test_post_submission_text_and_files(client, test_product):
    """T033: Contract test for POST /submit/{product_slug} with text and files

    Expected: 200/302 success with confirmation message
    """
    data = {
        'feedback_text': 'Here is my feedback with attachments.',
        'files': [
            (io.BytesIO(b'screenshot content'), 'screenshot.png'),
            (io.BytesIO(b'log file content'), 'error.log')
        ]
    }

    response = client.post('/submit/test-product',
                          data=data,
                          content_type='multipart/form-data',
                          follow_redirects=True)

    assert response.status_code == 200
    assert b'success' in response.data.lower() or b'thank' in response.data.lower()


@pytest.mark.contract
def test_empty_submission_rejected(client, test_product):
    """T034: Contract test for empty submission rejection (400)

    Expected: 400 Bad Request - must provide either text or files
    """
    data = {
        'feedback_text': ''
    }

    response = client.post('/submit/test-product', data=data)

    assert response.status_code == 400


@pytest.mark.contract
def test_too_many_files_rejected(client, test_product):
    """T035: Contract test for >3 files rejection (400)

    Expected: 400 Bad Request - maximum 3 files allowed
    """
    data = {
        'files': [
            (io.BytesIO(b'file1'), 'file1.txt'),
            (io.BytesIO(b'file2'), 'file2.txt'),
            (io.BytesIO(b'file3'), 'file3.txt'),
            (io.BytesIO(b'file4'), 'file4.txt')
        ]
    }

    response = client.post('/submit/test-product',
                          data=data,
                          content_type='multipart/form-data')

    assert response.status_code == 400
    assert b'maximum' in response.data.lower() or b'3' in response.data


@pytest.mark.contract
def test_large_file_rejected(client, test_product):
    """T036: Contract test for >10MB file rejection (413)

    Expected: 413 Request Entity Too Large
    """
    # Create a file larger than 10MB
    large_content = b'x' * (11 * 1024 * 1024)  # 11MB

    data = {
        'files': [
            (io.BytesIO(large_content), 'large.txt')
        ]
    }

    response = client.post('/submit/test-product',
                          data=data,
                          content_type='multipart/form-data')

    # Flask will reject this with 413 due to MAX_CONTENT_LENGTH
    assert response.status_code == 413


@pytest.mark.contract
def test_unsupported_file_type_rejected(client, test_product):
    """T037: Contract test for unsupported file type rejection (400)

    Expected: 400 Bad Request - file type not allowed
    """
    data = {
        'files': [
            (io.BytesIO(b'#!/bin/bash\necho malicious'), 'script.sh')
        ]
    }

    response = client.post('/submit/test-product',
                          data=data,
                          content_type='multipart/form-data')

    assert response.status_code == 400
    assert b'not allowed' in response.data.lower() or b'type' in response.data.lower()


@pytest.mark.contract
def test_rate_limiting(client, test_product, app):
    """T038: Contract test for rate limiting (429 after 10 submissions)

    Expected: 429 Too Many Requests after exceeding rate limit
    """
    # Skip if rate limiting is disabled
    if not app.config.get('RATELIMIT_ENABLED'):
        pytest.skip('Rate limiting disabled in test config')

    # Make 10 successful submissions (the limit)
    for i in range(10):
        data = {'feedback_text': f'Feedback {i}'}
        response = client.post('/submit/test-product', data=data)
        # Should succeed (200 or 302)
        assert response.status_code in [200, 302]

    # 11th submission should be rate limited
    data = {'feedback_text': 'This should be rate limited'}
    response = client.post('/submit/test-product', data=data)

    assert response.status_code == 429