"""Portfolio API routes."""

from fastapi import APIRouter, Depends, Response, status

from app.core.auth import require_admin, require_read, require_trade_write
from app.schemas.portfolio import (
    BuyRequest,
    CreatePortfolioRequest,
    InvestRequest,
    PortfolioDetailResponse,
    PortfolioListItem,
    ResetPortfolioRequest,
    SellRequest,
    TransferRequest,
    UpdatePortfolioRequest,
)
from app.services.portfolio_service import PortfolioService, get_portfolio_service

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


@router.get("", response_model=list[PortfolioListItem], dependencies=[Depends(require_read)])
def list_portfolios(
    broker: str | None = None,
    status_filter: str | None = None,
    service: PortfolioService = Depends(get_portfolio_service),
) -> list[PortfolioListItem]:
    return service.list_portfolios(broker=broker, status=status_filter)


@router.get("/{portfolio_id}", response_model=PortfolioDetailResponse, dependencies=[Depends(require_read)])
def get_portfolio(
    portfolio_id: str,
    recent_trades: int = 5,
    service: PortfolioService = Depends(get_portfolio_service),
) -> PortfolioDetailResponse:
    return service.get_portfolio_status(portfolio_id=portfolio_id, recent_trades=recent_trades)


@router.post(
    "",
    response_model=PortfolioDetailResponse,
    status_code=status.HTTP_201_CREATED,
    dependencies=[Depends(require_trade_write)],
)
def create_portfolio(
    payload: CreatePortfolioRequest,
    service: PortfolioService = Depends(get_portfolio_service),
) -> PortfolioDetailResponse:
    return service.create_portfolio(payload)


@router.patch("/{portfolio_id}", response_model=PortfolioDetailResponse, dependencies=[Depends(require_trade_write)])
def update_portfolio(
    portfolio_id: str,
    payload: UpdatePortfolioRequest,
    service: PortfolioService = Depends(get_portfolio_service),
) -> PortfolioDetailResponse:
    return service.update_portfolio(portfolio_id, payload)


@router.post("/{portfolio_id}/buy", response_model=PortfolioDetailResponse, dependencies=[Depends(require_trade_write)])
def buy_portfolio_asset(
    portfolio_id: str,
    payload: BuyRequest,
    service: PortfolioService = Depends(get_portfolio_service),
) -> PortfolioDetailResponse:
    return service.buy(portfolio_id, payload)


@router.post("/{portfolio_id}/sell", response_model=PortfolioDetailResponse, dependencies=[Depends(require_trade_write)])
def sell_portfolio_asset(
    portfolio_id: str,
    payload: SellRequest,
    service: PortfolioService = Depends(get_portfolio_service),
) -> PortfolioDetailResponse:
    return service.sell(portfolio_id, payload)


@router.post("/{portfolio_id}/invest", response_model=PortfolioDetailResponse, dependencies=[Depends(require_trade_write)])
def invest_buffer(
    portfolio_id: str,
    payload: InvestRequest,
    service: PortfolioService = Depends(get_portfolio_service),
) -> PortfolioDetailResponse:
    return service.invest(portfolio_id, payload)


@router.post("/{portfolio_id}/transfer", response_model=PortfolioDetailResponse, dependencies=[Depends(require_trade_write)])
def transfer_buffer(
    portfolio_id: str,
    payload: TransferRequest,
    service: PortfolioService = Depends(get_portfolio_service),
) -> PortfolioDetailResponse:
    return service.transfer(portfolio_id, payload)


@router.post("/{portfolio_id}/reset", response_model=PortfolioDetailResponse, dependencies=[Depends(require_trade_write)])
def reset_portfolio(
    portfolio_id: str,
    payload: ResetPortfolioRequest,
    service: PortfolioService = Depends(get_portfolio_service),
) -> PortfolioDetailResponse:
    return service.reset(portfolio_id, payload)


@router.delete("/{portfolio_id}", status_code=status.HTTP_204_NO_CONTENT, dependencies=[Depends(require_admin)])
def delete_portfolio(
    portfolio_id: str,
    keep_ledger: bool = False,
    service: PortfolioService = Depends(get_portfolio_service),
) -> Response:
    service.delete(portfolio_id, keep_ledger=keep_ledger)
    return Response(status_code=status.HTTP_204_NO_CONTENT)