from fastapi import APIRouter, Depends, HTTPException
from sqlalchemy.orm import Session

from app.api.schemas import PomodoroStart, PomodoroStop
from app.auth.deps import get_current_user
from app.db.base import get_db
from app.db.models import User
from app.pomodoro.service import PomodoroService

router = APIRouter()


def _handle_value_error(exc: ValueError) -> HTTPException:
    return HTTPException(status_code=400, detail=str(exc))


@router.get("/status")
def get_status(db: Session = Depends(get_db), user: User = Depends(get_current_user)) -> dict:
    return PomodoroService(db, user.id).get_status()


@router.post("/start")
def start_pomodoro(payload: PomodoroStart, db: Session = Depends(get_db), user: User = Depends(get_current_user)) -> dict:
    try:
        return PomodoroService(db, user.id).start(
            duration_min=payload.duration_min,
            task_note=payload.task_note,
        )
    except ValueError as exc:
        raise _handle_value_error(exc) from exc


@router.post("/pause")
def pause_pomodoro(db: Session = Depends(get_db), user: User = Depends(get_current_user)) -> dict:
    try:
        return PomodoroService(db, user.id).pause()
    except ValueError as exc:
        raise _handle_value_error(exc) from exc


@router.post("/resume")
def resume_pomodoro(db: Session = Depends(get_db), user: User = Depends(get_current_user)) -> dict:
    try:
        return PomodoroService(db, user.id).resume()
    except ValueError as exc:
        raise _handle_value_error(exc) from exc


@router.post("/stop")
def stop_pomodoro(payload: PomodoroStop, db: Session = Depends(get_db), user: User = Depends(get_current_user)) -> dict:
    try:
        return PomodoroService(db, user.id).stop(
            result=payload.result,
            completed=payload.completed,
        )
    except ValueError as exc:
        raise _handle_value_error(exc) from exc


@router.get("/history")
def get_history(limit: int = 20, db: Session = Depends(get_db), user: User = Depends(get_current_user)) -> list[dict]:
    return PomodoroService(db, user.id).history(limit=limit)


@router.post("/work/start")
def start_work(payload: PomodoroStart, db: Session = Depends(get_db), user: User = Depends(get_current_user)) -> dict:
    try:
        return PomodoroService(db, user.id).start_work(
            duration_min=payload.duration_min,
            task_note=payload.task_note,
        )
    except ValueError as exc:
        raise _handle_value_error(exc) from exc


@router.post("/break/short/start")
def start_short_break(duration_min: int | None = None, db: Session = Depends(get_db), user: User = Depends(get_current_user)) -> dict:
    try:
        return PomodoroService(db, user.id).start_short_break(duration_min=duration_min)
    except ValueError as exc:
        raise _handle_value_error(exc) from exc


@router.post("/break/long/start")
def start_long_break(duration_min: int | None = None, db: Session = Depends(get_db), user: User = Depends(get_current_user)) -> dict:
    try:
        return PomodoroService(db, user.id).start_long_break(duration_min=duration_min)
    except ValueError as exc:
        raise _handle_value_error(exc) from exc


@router.post("/cycle/reset")
def reset_cycle(clear_task: bool = False, db: Session = Depends(get_db), user: User = Depends(get_current_user)) -> dict:
    return PomodoroService(db, user.id).reset_cycle(clear_task=clear_task)


@router.post("/skip")
def skip_phase(db: Session = Depends(get_db), user: User = Depends(get_current_user)) -> dict:
    try:
        return PomodoroService(db, user.id).skip_phase()
    except ValueError as exc:
        raise _handle_value_error(exc) from exc