"""Compact, immutable references returned by authenticated content lookups."""

from datetime import date
from typing import Annotated, Literal

from pydantic import BaseModel, ConfigDict, Field, StringConstraints

ContentId = Annotated[str, StringConstraints(strip_whitespace=True, min_length=1, max_length=200)]
PodcastId = Annotated[str, StringConstraints(pattern=r"^(daily|report):\S.{0,199}$")]


class ContentReference(BaseModel):
    model_config = ConfigDict(frozen=True)
    id: ContentId
    title: str = Field(min_length=1, max_length=2000)
    date: date


class ReportReference(ContentReference):
    has_podcast: bool


class PodcastReference(ContentReference):
    id: PodcastId
    kind: Literal["daily", "report"]


class ConversationContent(BaseModel):
    model_config = ConfigDict(frozen=True)
    report: ReportReference | None = None
    podcast: PodcastReference | None = None
    unavailable: bool = False


class ContentSelection(BaseModel):
    model_config = ConfigDict(extra="forbid")
    kind: Literal["report", "podcast"]
    id: Annotated[str, StringConstraints(strip_whitespace=True, min_length=1, max_length=207)]


class SelectContentRequest(BaseModel):
    model_config = ConfigDict(extra="forbid")
    request: ContentSelection