from datetime import datetime
from enum import Enum
from uuid import UUID

from pydantic import AnyHttpUrl, BaseModel, ConfigDict, Field


class MonitorStatus(str, Enum):
    UNKNOWN = "unknown"
    UP = "up"
    DOWN = "down"
    ERROR = "error"


class MonitorCreate(BaseModel):
    name: str = Field(min_length=1, max_length=100, pattern=r".*\S.*")
    url: AnyHttpUrl


class MonitorUpdate(BaseModel):
    name: str | None = Field(default=None, min_length=1, max_length=100, pattern=r".*\S.*")
    url: AnyHttpUrl | None = None


class CheckResult(BaseModel):
    status: MonitorStatus
    checked_at: datetime
    latency_ms: float = Field(ge=0)
    http_status: int | None = None
    final_url: str | None = None
    detail: str | None = Field(default=None, max_length=300)


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

    id: UUID
    name: str
    url: AnyHttpUrl
    created_at: datetime
    updated_at: datetime
    revision: int
    status: MonitorStatus = MonitorStatus.UNKNOWN
    last_check: CheckResult | None = None


class StatusView(BaseModel):
    id: UUID
    status: MonitorStatus
    last_check: CheckResult | None


class Health(BaseModel):
    status: str