"""Trades router — R:R scanner trade setup endpoints."""

from fastapi import APIRouter, Depends, Query
from sqlalchemy.ext.asyncio import AsyncSession

from app.dependencies import get_db, require_access
from app.schemas.common import APIEnvelope
from app.schemas.trade_setup import RecommendationSummaryResponse, TradeSetupResponse
from app.services import admin_service
from app.services.outcome_service import get_performance_stats
from app.services.rr_scanner_service import get_trade_setup_history, get_trade_setups

router = APIRouter(tags=["trades"])


@router.get("/trades", response_model=APIEnvelope)
async def list_trade_setups(
    direction: str | None = Query(
        None, description="Filter by direction: long or short"
    ),
    min_confidence: float | None = Query(
        None, ge=0, le=100, description="Minimum confidence score"
    ),
    recommended_action: str | None = Query(
        None,
        description="Filter by action: LONG_HIGH, LONG_MODERATE, SHORT_HIGH, SHORT_MODERATE, NEUTRAL",
    ),
    _user=Depends(require_access),
    db: AsyncSession = Depends(get_db),
) -> APIEnvelope:
    """Get latest trade setups with recommendation data."""
    rows = await get_trade_setups(
        db,
        direction=direction,
        min_confidence=min_confidence,
        recommended_action=recommended_action,
    )

    data = []
    for row in rows:
        summary = RecommendationSummaryResponse(
            action=row.get("recommended_action") or "NEUTRAL",
            reasoning=row.get("reasoning"),
            risk_level=row.get("risk_level"),
            composite_score=row["composite_score"],
        )
        payload = {**row, "recommendation_summary": summary}
        data.append(TradeSetupResponse(**payload).model_dump(mode="json"))

    return APIEnvelope(status="success", data=data)


@router.get("/trades/activation", response_model=APIEnvelope)
async def get_activation_thresholds(
    _user=Depends(require_access),
    db: AsyncSession = Depends(get_db),
) -> APIEnvelope:
    """Activation thresholds (min R:R, min confidence) for actionable signals.

    Readable by any user with access — drives Signals-page default filters
    and the Dashboard's qualified-setup metrics. Configured by admins via
    PUT /admin/settings/activation.
    """
    config = await admin_service.get_activation_config(db)
    return APIEnvelope(status="success", data=config)


@router.get("/trades/performance", response_model=APIEnvelope)
async def get_trade_performance(
    qualified_only: bool = Query(
        False, description="Restrict overall/direction/action stats to setups that clear the activation gate"
    ),
    _user=Depends(require_access),
    db: AsyncSession = Depends(get_db),
) -> APIEnvelope:
    """Aggregate outcome statistics over evaluated trade setups.

    Outcomes are written by the nightly outcome_evaluator job (win = target
    hit first, loss = stop hit first, expired = neither within the window).
    With qualified_only, the overall/direction/action breakdowns cover only
    setups clearing the activation gate; the confidence breakdown always
    covers all setups so the gate can be validated against it.
    """
    config = await admin_service.get_activation_config(db) if qualified_only else None
    stats = await get_performance_stats(db, config=config)
    return APIEnvelope(status="success", data=stats)


@router.get("/trades/{symbol}", response_model=APIEnvelope)
async def get_ticker_trade_setups(
    symbol: str,
    _user=Depends(require_access),
    db: AsyncSession = Depends(get_db),
) -> APIEnvelope:
    rows = await get_trade_setups(db, symbol=symbol)
    data = []
    for row in rows:
        summary = RecommendationSummaryResponse(
            action=row.get("recommended_action") or "NEUTRAL",
            reasoning=row.get("reasoning"),
            risk_level=row.get("risk_level"),
            composite_score=row["composite_score"],
        )
        payload = {**row, "recommendation_summary": summary}
        data.append(TradeSetupResponse(**payload).model_dump(mode="json"))
    return APIEnvelope(status="success", data=data)


@router.get("/trades/{symbol}/history", response_model=APIEnvelope)
async def get_ticker_trade_history(
    symbol: str,
    _user=Depends(require_access),
    db: AsyncSession = Depends(get_db),
) -> APIEnvelope:
    rows = await get_trade_setup_history(db, symbol=symbol)
    data = []
    for row in rows:
        summary = RecommendationSummaryResponse(
            action=row.get("recommended_action") or "NEUTRAL",
            reasoning=row.get("reasoning"),
            risk_level=row.get("risk_level"),
            composite_score=row["composite_score"],
        )
        payload = {**row, "recommendation_summary": summary}
        data.append(TradeSetupResponse(**payload).model_dump(mode="json"))
    return APIEnvelope(status="success", data=data)