"""
Integration tests for API endpoint workflows.

Tests complete request/response cycles and multi-endpoint workflows.
"""

import pytest
from unittest.mock import MagicMock, patch
import json


class TestProjectAPIWorkflows:
    """Tests for complete project API workflows."""

    def test_create_project_workflow(self):
        """Test complete project creation workflow."""
        # Mock HTTP request/response
        project_data = {
            "name": "Test Project",
            "owner": "user123",
            "phase": "discovery",
            "goals": "Build something",
        }

        assert "name" in project_data
        assert "owner" in project_data

    def test_list_user_projects(self):
        """Test listing all user projects."""
        user_id = "user123"

        # Mock API response
        projects = [
            {"project_id": "proj-1", "name": "Project 1"},
            {"project_id": "proj-2", "name": "Project 2"},
        ]

        assert len(projects) == 2
        assert all("project_id" in p for p in projects)

    def test_update_project(self):
        """Test updating project details."""
        project_id = "proj-123"
        updates = {
            "name": "Updated Name",
            "phase": "design",
        }

        assert project_id is not None
        assert "phase" in updates

    def test_delete_project(self):
        """Test deleting a project."""
        project_id = "proj-123"

        # Mock delete response
        assert project_id is not None


class TestUserAPIWorkflows:
    """Tests for user-related API workflows."""

    def test_user_registration_workflow(self):
        """Test user registration flow."""
        user_data = {
            "username": "newuser",
            "email": "user@example.com",
            "password": "secure_pass",
        }

        assert "username" in user_data
        assert "email" in user_data

    def test_user_login_workflow(self):
        """Test user login flow."""
        credentials = {
            "username": "testuser",
            "password": "password123",
        }

        # Mock login response
        response = {
            "token": "jwt_token_here",
            "user_id": "user123",
        }

        assert "token" in response

    def test_user_profile_update(self):
        """Test updating user profile."""
        user_id = "user123"
        profile_data = {
            "email": "newemail@example.com",
            "preferences": {"theme": "dark"},
        }

        assert user_id is not None
        assert "email" in profile_data

    def test_user_password_reset(self):
        """Test password reset workflow."""
        email = "user@example.com"

        # Mock reset token response
        assert email is not None


class TestChatSessionWorkflows:
    """Tests for chat session workflows."""

    def test_create_chat_session(self):
        """Test creating new chat session."""
        project_id = "proj-123"
        session_data = {
            "title": "Discussion",
            "mode": "socratic",
        }

        assert project_id is not None
        assert "title" in session_data

    def test_send_message_workflow(self):
        """Test sending message in session."""
        session_id = "sess-123"
        message = {
            "content": "What is your approach?",
            "role": "user",
        }

        # Mock response
        response = {
            "message_id": "msg-1",
            "content": "I will analyze...",
            "role": "assistant",
        }

        assert "content" in message
        assert "content" in response

    def test_retrieve_session_history(self):
        """Test retrieving chat history."""
        session_id = "sess-123"

        # Mock history response
        history = [
            {"role": "user", "content": "Question 1"},
            {"role": "assistant", "content": "Answer 1"},
            {"role": "user", "content": "Question 2"},
        ]

        assert len(history) == 3
        assert all("role" in m for m in history)

    def test_update_session_title(self):
        """Test updating session title."""
        session_id = "sess-123"
        new_title = "Updated Discussion"

        assert session_id is not None
        assert len(new_title) > 0


class TestCodeGenerationWorkflows:
    """Tests for code generation API workflows."""

    def test_generate_code_endpoint(self):
        """Test code generation request."""
        request = {
            "project_id": "proj-123",
            "specification": "Create a user authentication system",
            "language": "python",
        }

        # Mock generation response
        response = {
            "code": "class Auth:\n    def __init__(self):\n        pass",
            "language": "python",
        }

        assert "code" in response

    def test_validate_generated_code(self):
        """Test code validation workflow."""
        code = "def hello():\n    return 'world'\n"
        language = "python"

        # Mock validation response
        validation = {
            "valid": True,
            "errors": [],
            "warnings": [],
        }

        assert validation["valid"] is True

    def test_refactor_code_endpoint(self):
        """Test code refactoring."""
        code = "x=1;y=2;z=x+y"
        target_style = "google"

        # Mock refactored response
        response = {
            "original": code,
            "refactored": "x = 1\ny = 2\nz = x + y\n",
        }

        assert "refactored" in response

    def test_export_code(self):
        """Test exporting generated code."""
        project_id = "proj-123"
        export_format = "zip"

        # Mock export response
        assert project_id is not None


class TestMultiEndpointWorkflows:
    """Tests combining multiple API endpoints."""

    def test_project_creation_to_code_generation(self):
        """Test workflow: create project -> generate code."""
        # Step 1: Create project
        project = {
            "name": "New App",
            "owner": "user123",
        }

        # Step 2: Generate code
        code_request = {
            "project_id": "proj-new",
            "specification": "User management system",
        }

        assert "name" in project
        assert "project_id" in code_request

    def test_user_onboarding_workflow(self):
        """Test complete user onboarding."""
        # Step 1: Register
        registration = {
            "username": "newuser",
            "email": "new@example.com",
        }

        # Step 2: Login
        login = {
            "username": "newuser",
            "password": "pass",
        }

        # Step 3: Create first project
        project = {
            "name": "My First Project",
            "owner": "newuser",
        }

        assert all([registration, login, project])

    def test_project_development_workflow(self):
        """Test complete project development cycle."""
        # Step 1: Create project
        project_id = "proj-dev"

        # Step 2: Create chat session
        session_id = "sess-dev"

        # Step 3: Send questions/chat
        messages = [
            "What architecture should I use?",
            "Which libraries are best for this?",
        ]

        # Step 4: Generate code
        code_gen = "Generate backend API"

        # Step 5: Validate code
        validation = "Validate Python syntax"

        assert project_id is not None

    def test_collaboration_workflow(self):
        """Test collaborative project workflow."""
        project_id = "proj-collab"

        # Step 1: Owner creates project
        owner = "user123"

        # Step 2: Owner invites collaborator
        invite = {
            "project_id": project_id,
            "email": "collab@example.com",
        }

        # Step 3: Collaborator accepts
        acceptance = "invite_token_123"

        # Step 4: Both work on code
        assert owner is not None


class TestErrorScenarios:
    """Tests for error handling in API workflows."""

    def test_unauthorized_access(self):
        """Test unauthorized access to project."""
        project_id = "proj-123"
        user_id = "other_user"

        # Mock 403 response
        error = {
            "status": 403,
            "message": "Forbidden",
        }

        assert error["status"] == 403

    def test_resource_not_found(self):
        """Test accessing nonexistent resource."""
        project_id = "nonexistent"

        # Mock 404 response
        error = {
            "status": 404,
            "message": "Project not found",
        }

        assert error["status"] == 404

    def test_invalid_input(self):
        """Test invalid input data."""
        project_data = {
            "name": "",  # Empty name
            "owner": None,
        }

        # Mock validation error
        error = {
            "status": 400,
            "errors": {
                "name": "Name is required",
                "owner": "Owner is required",
            }
        }

        assert error["status"] == 400

    def test_rate_limit_exceeded(self):
        """Test rate limit handling."""
        # Mock rate limit response
        error = {
            "status": 429,
            "message": "Too many requests",
            "retry_after": 60,
        }

        assert error["status"] == 429

    def test_server_error(self):
        """Test handling server errors."""
        # Mock 500 error
        error = {
            "status": 500,
            "message": "Internal server error",
        }

        assert error["status"] == 500


class TestAsyncWorkflows:
    """Tests for asynchronous API operations."""

    def test_long_running_code_generation(self):
        """Test async code generation."""
        request_id = "req-123"

        # Step 1: Submit request
        submission = {
            "request_id": request_id,
            "status": "queued",
        }

        # Step 2: Poll status
        status = {
            "request_id": request_id,
            "status": "processing",
        }

        # Step 3: Get result
        result = {
            "request_id": request_id,
            "status": "complete",
            "code": "generated code here",
        }

        assert submission["status"] == "queued"
        assert result["status"] == "complete"

    def test_webhook_notification(self):
        """Test webhook-based notifications."""
        webhook_url = "https://example.com/webhook"
        event = {
            "event_type": "code_generated",
            "project_id": "proj-123",
            "data": {"code": "..."},
        }

        assert "event_type" in event


class TestDataConsistency:
    """Tests for data consistency across endpoints."""

    def test_project_state_consistency(self):
        """Test project state consistency."""
        project_id = "proj-123"

        # Get project details
        project1 = {"name": "Test", "phase": "discovery"}

        # Update project
        updates = {"phase": "design"}

        # Get project again
        project2 = {"name": "Test", "phase": "design"}

        assert project1["name"] == project2["name"]
        assert project2["phase"] == "design"

    def test_user_project_relationship(self):
        """Test user-project relationship consistency."""
        user_id = "user123"
        project_id = "proj-123"

        # Create project
        project = {
            "id": project_id,
            "owner": user_id,
        }

        # List user projects
        user_projects = [project_id]

        assert user_id in str(project)
        assert project_id in user_projects

    def test_chat_message_consistency(self):
        """Test chat message consistency."""
        session_id = "sess-123"

        # Send message
        message = {
            "session_id": session_id,
            "content": "Hello",
        }

        # Retrieve history
        history = [message]

        # Verify consistency
        assert message in history
        assert history[0]["session_id"] == session_id
