from datetime import datetime
from typing import Optional
from pydantic import BaseModel, HttpUrl


class MonitorBase(BaseModel):
    name: str
    url: HttpUrl
    method: str = "GET"
    timeout: int = 30
    interval: int = 300
    is_active: bool = True


class MonitorCreate(MonitorBase):
    pass


class MonitorUpdate(BaseModel):
    name: Optional[str] = None
    url: Optional[HttpUrl] = None
    method: Optional[str] = None
    timeout: Optional[int] = None
    interval: Optional[int] = None
    is_active: Optional[bool] = None


class MonitorResponse(MonitorBase):
    id: int
    created_at: datetime
    updated_at: Optional[datetime] = None

    class Config:
        from_attributes = True


class UptimeCheckResponse(BaseModel):
    id: int
    monitor_id: int
    status_code: Optional[int]
    response_time: Optional[float]
    is_up: bool
    error_message: Optional[str]
    checked_at: datetime

    class Config:
        from_attributes = True


class MonitorStats(BaseModel):
    monitor_id: int
    uptime_percentage: float
    total_checks: int
    successful_checks: int
    average_response_time: Optional[float]
    last_check: Optional[datetime]