from pydantic import BaseModel, Field
from typing import Optional
from datetime import datetime
from uuid import UUID

class ExceptionBase(BaseModel):
    error_code: str = Field(..., max_length=50)
    error_message: str = Field(..., max_length=255)
    stack_trace: Optional[str] = Field(None)
    endpoint: str = Field(..., max_length=100)
    method: str = Field(..., max_length=10)
    request_data: Optional[str] = Field(None)

class ExceptionCreate(ExceptionBase):
    class Config:
        schema_extra = {
            "example": {
                "error_code": "ERR_500",
                "error_message": "Internal Server Error",
                "stack_trace": "File 'app.py', line 50, in process_request\n    raise Exception('Database connection failed')",
                "endpoint": "/api/v1/users",
                "method": "POST",
                "request_data": '{"username": "john_doe", "email": "john@example.com"}'
            }
        }

class Exception(ExceptionBase):
    id: UUID
    created_at: datetime
    
    class Config:
        orm_mode = True
        schema_extra = {
            "example": {
                "id": "550e8400-e29b-41d4-a716-446655440000",
                "error_code": "ERR_500",
                "error_message": "Internal Server Error",
                "stack_trace": "File 'app.py', line 50, in process_request\n    raise Exception('Database connection failed')",
                "endpoint": "/api/v1/users",
                "method": "POST",
                "request_data": '{"username": "john_doe", "email": "john@example.com"}',
                "created_at": "2023-01-01T12:00:00"
            }
        }