#!/usr/bin/env python3
"""Example showcasing Jinja2 template features in prompt management"""

from pathlib import Path
from src.llmutils.prompt_manager import PromptManager

# Create example prompts directory
prompts_dir = Path("prompts")
prompts_dir.mkdir(exist_ok=True)

# Create a code generation prompt with lists
code_gen_prompt = prompts_dir / "code_generator.md"
code_gen_prompt.write_text("""Generate a Python class with the following specifications:

Class Name: {{ class_name }}
{% if parent_class %}
Inherits from: {{ parent_class }}
{% endif %}

## Attributes:
{% for attr in attributes %}
- {{ attr.name }}: {{ attr.type }}{% if attr.default %} = {{ attr.default }}{% endif %}
{% endfor %}

## Methods:
{% for method in methods %}
### {{ method.name }}({{ method.params | join(', ') }})
{{ method.description }}
Returns: {{ method.returns }}
{% endfor %}

## Example Usage:
```python
{% for example in examples %}
{{ example }}
{% endfor %}
```

{% if additional_notes %}
## Notes:
{% for note in additional_notes %}
- {{ note }}
{% endfor %}
{% endif %}""")

# Create an API documentation prompt
api_doc_prompt = prompts_dir / "api_documentation.md"
api_doc_prompt.write_text("""# API Documentation: {{ api_name }}

Base URL: `{{ base_url }}`
Version: {{ version }}

## Authentication
{{ auth_method }}

## Endpoints

{% for endpoint in endpoints %}
### {{ endpoint.method }} {{ endpoint.path }}

**Description:** {{ endpoint.description }}

{% if endpoint.params %}
**Parameters:**
{% for param in endpoint.params %}
- `{{ param.name }}` ({{ param.type }}): {{ param.description }}{% if param.required %} *[Required]*{% endif %}
{% endfor %}
{% endif %}

{% if endpoint.request_body %}
**Request Body:**
```json
{{ endpoint.request_body | tojson(indent=2) }}
```
{% endif %}

**Response:** `{{ endpoint.response_code }}`
```json
{{ endpoint.response_example | tojson(indent=2) }}
```

---
{% endfor %}

## Rate Limiting
{{ rate_limit }} requests per {{ rate_limit_window }}

## Error Codes
{% for error in error_codes %}
- `{{ error.code }}`: {{ error.message }}
{% endfor %}""")

# Configure PromptManager
PromptManager.configure(path=prompts_dir)

print("=" * 70)
print("Jinja2 Template Examples with Lists and Complex Data")
print("=" * 70)

# Example 1: Code Generation
print("\n1. CODE GENERATION PROMPT")
print("-" * 70)

prompt = PromptManager.get_prompt("code_generator")
filled = prompt.fill(
    class_name="UserProfile",
    parent_class="BaseModel",
    attributes=[
        {"name": "user_id", "type": "int"},
        {"name": "username", "type": "str"},
        {"name": "email", "type": "str"},
        {"name": "created_at", "type": "datetime", "default": "datetime.now()"},
        {"name": "is_active", "type": "bool", "default": "True"}
    ],
    methods=[
        {
            "name": "validate_email",
            "params": ["self"],
            "description": "Validates the email format",
            "returns": "bool"
        },
        {
            "name": "update_profile",
            "params": ["self", "**kwargs"],
            "description": "Updates user profile with provided fields",
            "returns": "None"
        },
        {
            "name": "to_dict",
            "params": ["self"],
            "description": "Converts the profile to a dictionary",
            "returns": "Dict[str, Any]"
        }
    ],
    examples=[
        "user = UserProfile(user_id=1, username='alice', email='alice@example.com')",
        "if user.validate_email():",
        "    user.update_profile(is_active=False)",
        "    print(user.to_dict())"
    ],
    additional_notes=[
        "Email validation should follow RFC 5322",
        "All datetime values should be UTC",
        "Profile updates should be logged"
    ]
)
print(filled)

# Example 2: API Documentation
print("\n2. API DOCUMENTATION PROMPT")
print("-" * 70)

prompt = PromptManager.get_prompt("api_documentation")
filled = prompt.fill(
    api_name="User Management API",
    base_url="https://api.example.com/v1",
    version="1.0.0",
    auth_method="Bearer token in Authorization header",
    endpoints=[
        {
            "method": "GET",
            "path": "/users",
            "description": "List all users with optional filtering",
            "params": [
                {"name": "page", "type": "integer", "description": "Page number", "required": False},
                {"name": "limit", "type": "integer", "description": "Items per page", "required": False},
                {"name": "status", "type": "string", "description": "Filter by status", "required": False}
            ],
            "response_code": "200 OK",
            "response_example": {
                "users": [
                    {"id": 1, "username": "alice", "status": "active"},
                    {"id": 2, "username": "bob", "status": "inactive"}
                ],
                "total": 2,
                "page": 1
            }
        },
        {
            "method": "POST",
            "path": "/users",
            "description": "Create a new user",
            "request_body": {
                "username": "string",
                "email": "string",
                "password": "string"
            },
            "response_code": "201 Created",
            "response_example": {
                "id": 3,
                "username": "charlie",
                "email": "charlie@example.com",
                "created_at": "2024-01-15T10:30:00Z"
            }
        },
        {
            "method": "DELETE",
            "path": "/users/{id}",
            "description": "Delete a user by ID",
            "params": [
                {"name": "id", "type": "integer", "description": "User ID", "required": True}
            ],
            "response_code": "204 No Content",
            "response_example": {}
        }
    ],
    rate_limit=1000,
    rate_limit_window="hour",
    error_codes=[
        {"code": "400", "message": "Bad Request - Invalid parameters"},
        {"code": "401", "message": "Unauthorized - Invalid or missing token"},
        {"code": "404", "message": "Not Found - Resource doesn't exist"},
        {"code": "429", "message": "Too Many Requests - Rate limit exceeded"},
        {"code": "500", "message": "Internal Server Error"}
    ]
)
print(filled)

print("\n" + "=" * 70)
print("Examples completed successfully!")
print("=" * 70)