from datetime import datetime
from enum import StrEnum
from uuid import UUID

from pydantic import AnyHttpUrl, BaseModel, ConfigDict, Field


class MonitorState(StrEnum):
    UNKNOWN = "unknown"
    UP = "up"
    DOWN = "down"
    ERROR = "error"
    BLOCKED = "blocked"


class MonitorCreate(BaseModel):
    name: str = Field(min_length=1, max_length=100)
    url: AnyHttpUrl


class MonitorUpdate(MonitorCreate):
    pass


class StatusSnapshot(BaseModel):
    state: MonitorState = MonitorState.UNKNOWN
    checked_at: datetime | None = None
    latency_ms: float | None = Field(default=None, ge=0)
    http_status: int | None = Field(default=None, ge=100, le=599)
    error: str | None = None


class Monitor(BaseModel):
    model_config = ConfigDict(from_attributes=True)

    id: UUID
    name: str
    url: AnyHttpUrl
    created_at: datetime
    updated_at: datetime
    status: StatusSnapshot


class Health(BaseModel):
    status: str