"""站内通知接口（契约 1.34）。"""

from __future__ import annotations

from flask import request

from dms.api.v1.blueprint import api_v1
from dms.common.errors import InvalidArgumentError
from dms.common.response import success_response
from dms.security.auth_context import get_auth_context
from dms.security.decorators import bearer_auth_required
from dms.services.notification_service import (
    handle_notification,
    list_notifications,
    mark_all_read,
    unread_count,
)


def _parse_notification_id(value: str) -> int:
    if not value.isdecimal() or int(value) <= 0:
        raise InvalidArgumentError("id必须是正整数形式的字符串ID")
    return int(value)


def _parse_action(value: object) -> str:
    if not isinstance(value, str):
        raise InvalidArgumentError("请求体必须是JSON对象")
    return value


@api_v1.get("/notifications")
@bearer_auth_required
def notifications():
    return success_response(list_notifications(get_auth_context().user_id))


@api_v1.get("/notifications/unread-count")
@bearer_auth_required
def notification_unread_count():
    return success_response(unread_count(get_auth_context().user_id))


@api_v1.post("/notifications/read-all")
@bearer_auth_required
def notification_read_all():
    return success_response(mark_all_read(get_auth_context().user_id))


@api_v1.post("/notifications/<id>/handle")
@bearer_auth_required
def notification_handle(id: str):
    if not request.is_json:
        raise InvalidArgumentError("请求体必须是JSON对象")
    body = request.get_json(silent=True)
    if not isinstance(body, dict):
        raise InvalidArgumentError("请求体必须是JSON对象")
    return success_response(
        handle_notification(
            get_auth_context().user_id,
            _parse_notification_id(id),
            _parse_action(body.get("action")),
        )
    )