"""API Routes"""

import html
import traceback

from fastapi import APIRouter, Request, Depends
from fastapi import HTTPException, status

from pydantic import BaseModel, Field

from mab import MatrixBot
from database import Database
from datatypes import *

router = APIRouter(prefix="/api")

#
# MODELS
#
class ModelGetNotify(BaseModel):
    channel: str = Field(
        ...,
        min_length=11,
        max_length=11,
        description="Notification channel (use `!info` bot command)"
    )
    text: str = Field(
        ...,
        min_length=1,
        max_length=1024,
        description="Text to use as notification body"
    )
    service: str | None = Field(
        None,
        min_length=1,
        max_length=1024,
        description="Service name to use (ignored if token has name)"
    )

#
# ENDPOINTS
#
@router.get("/notify")
async def _get_notify(request: Request, params: ModelGetNotify = Depends()):
    # improve readability
    database: Database = request.app.state.database
    matrix: MatrixBot = request.app.state.matrix
    token: ObjectToken = request.state.token
    # check if room exists
    room = await database.room_get(params.channel)
    if room is None:
        raise HTTPException(status.HTTP_200_OK, "No such channel")
    # prepare service name
    service = token.name or params.service or "Unnamed"
    # prepare text of the notification
    text = f"<strong>Уведомление от службы <code>{html.escape(service)}</code></strong>"
    text += "<br>" * 2
    text += html.escape(params.text)
    # try to send the notification
    try:
        notification_id = await matrix.send_text_to_room(
            room.matrix_id,
            text,
            is_html=True
        )
    except:
        traceback.print_exc()
        raise HTTPException(status.HTTP_200_OK, "Failed to send matrix message")
    # success
    return {"notification_id": notification_id}