"""API 依赖注入：Repository / 研究服务的装配点（composition root 的一部分）。

路由层统一使用 Annotated 注入（FastAPI 推荐写法，配合 ruff B008 无冲突）。
"""

from __future__ import annotations

from typing import Annotated

from fastapi import Depends
from sqlalchemy.orm import Session

from app.domain.repositories.jobs import ExperimentRepository, JobRepository
from app.domain.repositories.market import (
    DailyBarRepository,
    StockRepository,
)
from app.infrastructure.persistence.sqlalchemy.repositories.market_impl import (
    SqlAlchemyDailyBarRepository,
    SqlAlchemyStockRepository,
)
from app.infrastructure.persistence.sqlalchemy.session import get_session
from app.quant.engine import LocalEngine, QuantEngine
from app.quant.service import ResearchService

DbSession = Annotated[Session, Depends(get_session)]


def _stock_repo_factory(session: DbSession) -> StockRepository:
    return SqlAlchemyStockRepository(session)


def _daily_repo_factory(session: DbSession) -> DailyBarRepository:
    return SqlAlchemyDailyBarRepository(session)


def _engine_factory() -> QuantEngine:
    return LocalEngine()


def _service_factory(
    stock_repo: Annotated[StockRepository, Depends(_stock_repo_factory)],
    daily_repo: Annotated[DailyBarRepository, Depends(_daily_repo_factory)],
    engine: Annotated[QuantEngine, Depends(_engine_factory)],
) -> ResearchService:
    return ResearchService(stock_repo, daily_repo, engine)


StockRepoDep = Annotated[StockRepository, Depends(_stock_repo_factory)]
DailyRepoDep = Annotated[DailyBarRepository, Depends(_daily_repo_factory)]
EngineDep = Annotated[QuantEngine, Depends(_engine_factory)]
ResearchServiceDep = Annotated[ResearchService, Depends(_service_factory)]


def _job_repo_factory(session: DbSession):
    from app.infrastructure.persistence.sqlalchemy.repositories.jobs_impl import (
        SqlAlchemyJobRepository,
    )

    return SqlAlchemyJobRepository(session)


def _experiment_repo_factory(session: DbSession):
    from app.infrastructure.persistence.sqlalchemy.repositories.jobs_impl import (
        SqlAlchemyExperimentRepository,
    )

    return SqlAlchemyExperimentRepository(session)


JobRepoDep = Annotated[JobRepository, Depends(_job_repo_factory)]
ExperimentRepoDep = Annotated[ExperimentRepository, Depends(_experiment_repo_factory)]