"""Notifications inbox API."""
from __future__ import annotations

from typing import Optional

from fastapi import APIRouter, HTTPException
from pydantic import BaseModel

from core.notifications.deadline_alerts import send_deadline_alert_email
from core.notifications.inbox import (
    create_post_award_deadline_notification,
    list_notifications,
    mark_read,
)

router = APIRouter(prefix="/api/notifications", tags=["notifications"])


class DeadlineAlertTestBody(BaseModel):
    email: str
    project_id: str
    milestone: str
    deadline: str
    user_id: Optional[str] = "default"


@router.get("/inbox")
async def inbox(user_id: str = "default", unread_only: bool = False):
    return {"notifications": list_notifications(user_id, unread_only=unread_only)}


@router.post("/{notification_id}/read")
async def read_notification(notification_id: str):
    updated = mark_read(notification_id)
    if not updated:
        raise HTTPException(status_code=404, detail="Powiadomienie nie istnieje")
    return updated


@router.post("/test-deadline-alert")
async def test_deadline_alert(body: DeadlineAlertTestBody):
    note = create_post_award_deadline_notification(
        project_id=body.project_id,
        milestone=body.milestone,
        deadline_iso=body.deadline,
        user_id=body.user_id or "default",
    )
    email_result = send_deadline_alert_email(
        to_email=str(body.email),
        subject=note["title"],
        body=f"{note['body']}\nTermin: {body.deadline}",
    )
    return {"notification": note, "email": email_result}