from fastapi import APIRouter, HTTPException, Query

from app.core.config import settings
from app.scheduler.manager import scheduler
from app.services.demand_pool_service import (
    query_demand_pool_records,
    query_strategy_options,
)
from app.services.element_search_service import (
    query_monthly_element_demands,
    query_same_period_last_year_element_demands,
    query_same_period_last_year_lunar_element_demands,
    query_video_decode_url2_for_today,
)

router = APIRouter()


@router.get("/health")
async def health_check() -> dict[str, str]:
    return {"status": "ok", "service": settings.app_name, "env": settings.app_env}


@router.get("/scheduler/status")
async def scheduler_status() -> dict[str, object]:
    jobs = scheduler.get_jobs()
    return {
        "running": scheduler.running,
        "job_count": len(jobs),
        "jobs": [job.id for job in jobs],
    }


@router.get("/demand-pool")
async def query_demand_pool(
    strategy: list[str] | None = Query(default=None, description="策略，支持多选"),
    start_dt: str | None = Query(default=None, description="开始日期: yyyymmdd 或 yyyy-mm-dd"),
    end_dt: str | None = Query(default=None, description="结束日期: yyyymmdd 或 yyyy-mm-dd"),
    demand_name: str | None = Query(
        default=None,
        description="需求名称包含该子串则保留；空或未传则不筛选",
    ),
    min_weight: float | None = Query(default=None, description="最小权重"),
    max_weight: float | None = Query(default=None, description="最大权重"),
    sort_by: str | None = Query(default="weight", description="排序字段"),
    sort_order: str | None = Query(default="desc", description="排序方向: asc 或 desc"),
    page: int = Query(default=1, ge=1, description="页码，从 1 开始"),
    page_size: int = Query(default=20, ge=1, le=200, description="每页条数"),
) -> dict[str, object]:
    return query_demand_pool_records(
        strategies=strategy,
        start_dt=start_dt,
        end_dt=end_dt,
        demand_name=demand_name,
        min_weight=min_weight,
        max_weight=max_weight,
        sort_by=sort_by,
        sort_order=sort_order,
        page=page,
        page_size=page_size,
    )


@router.get("/element-demands/solar-calendar")
async def get_element_demands_solar_calendar(
    period_days: int = Query(
        ...,
        ge=0,
        description="区间天数（含去年阳历今日）；0 表示仅当日分区",
    ),
    view_pv_count: int = Query(
        ...,
        ge=0,
        description="当日分发曝光 pv 下限（video_dimension_detail_add_column）",
    ),
    min_contribution_score: float = Query(
        ...,
        description="贡献分下限（dwd_topic_decode_result_detail_di）",
    ),
    rov_avg: float = Query(
        ...,
        description="按原始元素分组后的平均 ROV 下限（HAVING）",
    ),
) -> dict[str, object]:
    items = query_same_period_last_year_element_demands(
        period_days=period_days,
        view_pv_count=view_pv_count,
        min_contribution_score=min_contribution_score,
        rov_avg=rov_avg,
    )
    return {"items": items}


@router.get("/element-demands/lunar-calendar")
async def get_element_demands_lunar_calendar(
    period_days: int = Query(
        ...,
        ge=0,
        description="区间天数（含去年阴历今日）；0 表示仅当日分区",
    ),
    view_pv_count: int = Query(
        ...,
        ge=0,
        description="当日分发曝光 pv 下限（video_dimension_detail_add_column）",
    ),
    min_contribution_score: float = Query(
        ...,
        description="贡献分下限（dwd_topic_decode_result_detail_di）",
    ),
    rov_avg: float = Query(
        ...,
        description="按原始元素分组后的平均 ROV 下限（HAVING）",
    ),
) -> dict[str, object]:
    items = query_same_period_last_year_lunar_element_demands(
        period_days=period_days,
        view_pv_count=view_pv_count,
        min_contribution_score=min_contribution_score,
        rov_avg=rov_avg,
    )
    return {"items": items}


@router.get("/element-demands/monthly")
async def get_element_demands_monthly(
    view_pv_count: int = Query(
        ...,
        ge=0,
        description="当日分发曝光 pv 下限（video_dimension_detail_add_column 单日行）",
    ),
    month_total_pv_threshold: float = Query(
        ...,
        ge=0,
        description="视频单月累计分发曝光 PV 和的下限（严格大于该值才保留）",
    ),
    min_contribution_score: float = Query(
        ...,
        description="贡献分下限（dwd_topic_decode_result_detail_di）",
    ),
    rov_avg: float = Query(
        ...,
        description="元素单月平均 ROV 下限（按月聚合后再汇总）",
    ),
    min_frequency: int = Query(
        ...,
        ge=0,
        description="元素在回溯窗口内满足条件的月份数下限",
    ),
) -> dict[str, object]:
    items = query_monthly_element_demands(
        view_pv_count=view_pv_count,
        month_total_pv_threshold=month_total_pv_threshold,
        min_contribution_score=min_contribution_score,
        rov_avg=rov_avg,
        min_frequency=min_frequency,
    )
    return {"items": items}


@router.get("/videos/decode-url")
async def get_video_decode_page_url(
    vid: str = Query(
        ...,
        min_length=1,
        max_length=128,
        description="视频 id，对应 dwd_topic_decode_result_di.vid（当天上海分区）",
    ),
) -> dict[str, str | None]:
    try:
        url2 = query_video_decode_url2_for_today(vid)
    except ValueError as exc:
        raise HTTPException(status_code=400, detail=str(exc)) from exc
    return {"url2": url2}


@router.get("/demand-pool/strategies")
async def get_demand_pool_strategies(
    start_dt: str | None = Query(default=None, description="开始日期: yyyymmdd 或 yyyy-mm-dd"),
    end_dt: str | None = Query(default=None, description="结束日期: yyyymmdd 或 yyyy-mm-dd"),
    min_weight: float | None = Query(default=None, description="最小权重"),
    max_weight: float | None = Query(default=None, description="最大权重"),
) -> dict[str, object]:
    return query_strategy_options(
        start_dt=start_dt,
        end_dt=end_dt,
        min_weight=min_weight,
        max_weight=max_weight,
    )