from __future__ import annotations

from enum import Enum
from typing import ClassVar, Literal
from uuid import UUID

from pydantic import BaseModel, ConfigDict, Field


class AttachmentType(str, Enum):
    DOCUMENT = "document"
    REMINDER = "reminder"


class ScheduleItemMetadataAttachment(BaseModel):
    model_config: ClassVar[ConfigDict] = ConfigDict(extra="forbid")

    name: str
    type: AttachmentType
    visible_to: list[UUID] = Field(default_factory=list)
    url: str | None = None
    note: str | None = None
    content: str | None = None


class ScheduleItemMetadata(BaseModel):
    model_config: ClassVar[ConfigDict] = ConfigDict(extra="forbid")

    color: str | None = Field(default=None, pattern=r"^#[0-9A-Fa-f]{6}$")
    location: str | None = None
    notes: str | None = None
    attachments: list[ScheduleItemMetadataAttachment] = Field(default_factory=list)
    reminder_minutes: int | None = Field(default=None, ge=0, le=10080)
    version: Literal[1] = 1


class ScheduleItemStatus(str, Enum):
    ACTIVE = "active"
    COMPLETED = "completed"
    CANCELED = "canceled"
    ARCHIVED = "archived"


class ScheduleItemSourceType(str, Enum):
    MANUAL = "manual"
    IMPORTED = "imported"
    AGENT_GENERATED = "agent_generated"