# tests/system/test_error_handling.py
import pytest


@pytest.mark.system
class TestErrorHandling:
    def test_invalid_json(self, client, auth_headers):
        """Test handling of invalid JSON"""
        response = client.post(
            "/api/v1/product", headers=auth_headers, content="invalid json"
        )

        assert response.status_code == 422  # Validation error

    def test_missing_required_fields(self, client, auth_headers):
        """Test handling of missing required fields"""
        response = client.post(
            "/api/v1/product", headers=auth_headers, json={"title": "Test"}
        )  # Missing product_id

        assert response.status_code == 422

    def test_invalid_authentication(self, client):
        """Test handling of invalid authentication"""
        response = client.get(
            "/api/v1/product", headers={"Authorization": "Bearer invalid_token"}
        )

        assert response.status_code == 401  # Token is not valid

    def test_nonexistent_resource(self, client, auth_headers):
        """Test handling of nonexistent resource access"""
        response = client.get("/api/v1/product/NONEXISTENT", headers=auth_headers)
        assert response.status_code == 404

        response = client.get("/api/v1/shop/NONEXISTENT", headers=auth_headers)
        assert response.status_code == 404

    def test_duplicate_resource_creation(self, client, auth_headers, test_product):
        """Test handling of duplicate resource creation"""
        product_data = {
            "product_id": test_product.product_id,  # Duplicate ID
            "title": "Another Product",
        }

        response = client.post(
            "/api/v1/product", headers=auth_headers, json=product_data
        )
        assert response.status_code == 400

    def test_server_error_handling(self, client, auth_headers):
        """Test handling of server errors"""
        # This would test 500 errors if you have endpoints that can trigger them
        # For now, test that the error handling middleware works
        response = client.get("/api/v1/nonexistent-endpoint", headers=auth_headers)
        assert response.status_code == 404

    def test_rate_limiting_behavior(self, client, auth_headers):
        """Test rate limiting behavior if implemented"""
        # Make multiple rapid requests to test rate limiting
        responses = []
        for i in range(10):
            response = client.get("/api/v1/product", headers=auth_headers)
            responses.append(response)

        # All should succeed unless rate limiting is very aggressive
        # Adjust based on your rate limiting configuration
        success_count = sum(1 for r in responses if r.status_code == 200)
        assert success_count >= 5  # At least half should succeed

    def test_malformed_requests(self, client, auth_headers):
        """Test handling of various malformed requests"""
        # Test extremely long URLs
        long_search = "x" * 10000
        response = client.get(f"/api/v1/product?search={long_search}", headers=auth_headers)
        # Should handle gracefully, either 200 with no results or 422 for too long
        assert response.status_code in [200, 422]

        # Test special characters in parameters
        special_chars = "!@#$%^&*(){}[]|\\:;\"'<>,.?/~`"
        response = client.get(f"/api/v1/product?search={special_chars}", headers=auth_headers)
        # Should handle gracefully
        assert response.status_code in [200, 422]

    def test_database_error_recovery(self, client, auth_headers):
        """Test application behavior during database issues"""
        # This is more complex to test - you'd need to simulate DB issues
        # For now, just test that basic operations work
        response = client.get("/api/v1/product", headers=auth_headers)
        assert response.status_code == 200

    def test_content_type_errors(self, client, auth_headers):
        """Test handling of incorrect content types"""
        # Send XML to JSON endpoint
        response = client.post(
            "/api/v1/product",
            headers={**auth_headers, "Content-Type": "application/xml"},
            content="<xml>not json</xml>"
        )
        assert response.status_code in [400, 422, 415]  # Bad request or unsupported media type

    def test_large_payload_handling(self, client, auth_headers):
        """Test handling of unusually large payloads"""
        # Create a very large product description
        large_data = {
            "product_id": "LARGE_TEST",
            "title": "Large Test Product",
            "description": "x" * 50000  # Very long description
        }

        response = client.post("/api/v1/product", headers=auth_headers, json=large_data)
        # Should either accept it or reject with 422 (too large)
        assert response.status_code in [200, 201, 422, 413]