"""Reading templates. Any authenticated user: the picker needs them."""

import uuid
from typing import Annotated

from fastapi import Depends
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession

from app.api.templates.routing import reader_router
from app.api.templates.schemas import TemplateDetail, TemplateSummary
from app.api.templates.view import detail, summary
from app.auth.deps import get_current_user
from app.config import get_settings
from app.db import get_db
from app.errors import ApiError
from app.models import Template, User

router = reader_router()


@router.get("")
async def list_templates(
    user: Annotated[User, Depends(get_current_user)],
    db: Annotated[AsyncSession, Depends(get_db)],
) -> list[TemplateSummary]:
    """Templates the picker offers. Templates in the reader's language come
    first — they are customer content, so a mismatched one is still listed
    rather than hidden."""
    rows = (await db.execute(select(Template).order_by(Template.name))).scalars().all()
    wanted = user.locale or get_settings().default_locale
    ordered = sorted(rows, key=lambda row: row.config.get("locale") != wanted)
    return [summary(row) for row in ordered]


@router.get("/{template_id}")
async def get_template(
    template_id: uuid.UUID,
    user: Annotated[User, Depends(get_current_user)],
    db: Annotated[AsyncSession, Depends(get_db)],
) -> TemplateDetail:
    row = await db.get(Template, template_id)
    if row is None:
        raise ApiError(404, "Template not found.", "not_found")
    return detail(row)