from datetime import datetime
from typing import Literal

from pydantic import BaseModel, Field, HttpUrl, model_validator

Severity = Literal["ok", "info", "warning", "critical"]


class CustomerReferenceCreate(BaseModel):
    customer_name: str = Field(min_length=1, max_length=180)
    logo_url: str | None = Field(default=None, max_length=500)
    website_url: HttpUrl | None = None
    sort_order: int = Field(default=100, ge=0, le=100000)
    is_active: bool = True


class CustomerReferenceUpdate(BaseModel):
    customer_name: str | None = Field(default=None, min_length=1, max_length=180)
    logo_url: str | None = Field(default=None, max_length=500)
    website_url: HttpUrl | None = None
    sort_order: int | None = Field(default=None, ge=0, le=100000)
    is_active: bool | None = None


class OperationCreate(BaseModel):
    title: str = Field(min_length=1, max_length=180)
    severity: Severity = "info"
    message: str = Field(min_length=1, max_length=20000)
    starts_at: datetime | None = None
    ends_at: datetime | None = None
    is_active: bool = True

    @model_validator(mode="after")
    def validate_dates(self):
        if self.starts_at and self.ends_at and self.ends_at < self.starts_at:
            raise ValueError("Sluttid skal ligge efter starttid")
        return self


class OperationUpdate(BaseModel):
    title: str | None = Field(default=None, min_length=1, max_length=180)
    severity: Severity | None = None
    message: str | None = Field(default=None, min_length=1, max_length=20000)
    starts_at: datetime | None = None
    ends_at: datetime | None = None
    is_active: bool | None = None


class IncidentCreate(BaseModel):
    title: str = Field(min_length=1, max_length=180)
    severity: Severity = "info"
    message: str = Field(min_length=1, max_length=20000)
    starts_at: datetime | None = None
    ends_at: datetime | None = None
    is_public: bool = True


class IncidentUpdate(BaseModel):
    title: str | None = Field(default=None, min_length=1, max_length=180)
    severity: Severity | None = None
    message: str | None = Field(default=None, min_length=1, max_length=20000)
    starts_at: datetime | None = None
    ends_at: datetime | None = None
    is_public: bool | None = None


class CompleteOperation(BaseModel):
    ends_at: datetime | None = None
    is_public: bool = True