"""结算报表导出数据 API（01–06 独立查询，前端再生成 Excel）。"""
from __future__ import annotations

from typing import Optional

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

from app.api.admin import (
    _effective_settlement_region_id,
    get_admin_allowed_region_ids,
    get_admin_region_filter,
    require_admin,
)
from app.core.database import get_db
from app.core.response import error_response, success_response
from app.services import settlement_reports as svc

router = APIRouter(prefix="/web/admin/settlement-reports", tags=["结算报表导出"])


def _resolve_eff_region(
    db: Session,
    current_user: dict,
    region_id: Optional[str],
):
    allowed_region_ids = get_admin_allowed_region_ids(db, current_user)
    if allowed_region_ids is not None and region_id and region_id not in allowed_region_ids:
        return None, error_response(403, "无权访问该区域数据")
    admin_region_id = get_admin_region_filter(db, current_user)
    # 多区域运营：允许按 Tab 的 regionId 筛选（在权限集合内）
    if allowed_region_ids is not None and len(allowed_region_ids) > 1 and region_id:
        eff = region_id
    else:
        eff = _effective_settlement_region_id(admin_region_id, region_id)
    return eff, None


def _split_ids(raw: Optional[str]) -> Optional[list]:
    ids = [x.strip() for x in (raw or "").split(",") if x.strip()]
    return ids or None


@router.get("/client-order-lines")
def export_client_order_lines(
    regionId: Optional[str] = Query(None),
    clientId: Optional[str] = Query(None),
    keyword: Optional[str] = Query(None),
    startDate: Optional[str] = Query(None),
    endDate: Optional[str] = Query(None),
    orderIds: Optional[str] = Query(None, description="逗号分隔订单ID，优先于日期筛选"),
    yearMonth: Optional[str] = Query(None, description="YYYY-MM；单月兼容"),
    yearMonthStart: Optional[str] = Query(None, description="YYYY-MM 起始月"),
    yearMonthEnd: Optional[str] = Query(None, description="YYYY-MM 结束月"),
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_admin),
):
    eff, err = _resolve_eff_region(db, current_user, regionId)
    if err is not None:
        return err
    try:
        rows = svc.build_client_order_lines(
            db,
            region_id=eff,
            client_id=clientId,
            keyword=keyword,
            start=startDate,
            end=endDate,
            order_ids=_split_ids(orderIds),
            year_month=yearMonth,
            year_month_start=yearMonthStart,
            year_month_end=yearMonthEnd,
        )
        return success_response({"list": rows, "total": len(rows)})
    except ValueError as e:
        return error_response(400, str(e))


@router.get("/client-monthly")
def export_client_monthly(
    yearMonth: Optional[str] = Query(None, description="YYYY-MM；单月兼容"),
    yearMonthStart: Optional[str] = Query(None, description="YYYY-MM 起始月"),
    yearMonthEnd: Optional[str] = Query(None, description="YYYY-MM 结束月"),
    regionId: Optional[str] = Query(None),
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_admin),
):
    eff, err = _resolve_eff_region(db, current_user, regionId)
    if err is not None:
        return err
    try:
        rows = svc.build_client_monthly_summary(
            db,
            region_id=eff,
            year_month=yearMonth,
            year_month_start=yearMonthStart,
            year_month_end=yearMonthEnd,
        )
        return success_response({"list": rows, "total": len(rows)})
    except ValueError as e:
        return error_response(400, str(e))


@router.get("/supplier-supply-lines")
def export_supplier_supply_lines(
    regionId: Optional[str] = Query(None),
    supplierId: Optional[str] = Query(None),
    keyword: Optional[str] = Query(None),
    startDate: Optional[str] = Query(None),
    endDate: Optional[str] = Query(None),
    orderIds: Optional[str] = Query(None, description="逗号分隔订单ID，优先于日期筛选"),
    yearMonth: Optional[str] = Query(None, description="YYYY-MM；单月兼容"),
    yearMonthStart: Optional[str] = Query(None, description="YYYY-MM 起始月"),
    yearMonthEnd: Optional[str] = Query(None, description="YYYY-MM 结束月"),
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_admin),
):
    eff, err = _resolve_eff_region(db, current_user, regionId)
    if err is not None:
        return err
    try:
        rows = svc.build_supplier_supply_lines(
            db,
            region_id=eff,
            supplier_id=supplierId,
            keyword=keyword,
            start=startDate,
            end=endDate,
            order_ids=_split_ids(orderIds),
            year_month=yearMonth,
            year_month_start=yearMonthStart,
            year_month_end=yearMonthEnd,
        )
        return success_response({"list": rows, "total": len(rows)})
    except ValueError as e:
        return error_response(400, str(e))


@router.get("/supplier-monthly")
def export_supplier_monthly(
    yearMonth: Optional[str] = Query(None, description="YYYY-MM；单月兼容"),
    yearMonthStart: Optional[str] = Query(None, description="YYYY-MM 起始月"),
    yearMonthEnd: Optional[str] = Query(None, description="YYYY-MM 结束月"),
    regionId: Optional[str] = Query(None),
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_admin),
):
    eff, err = _resolve_eff_region(db, current_user, regionId)
    if err is not None:
        return err
    try:
        rows = svc.build_supplier_monthly_summary(
            db,
            region_id=eff,
            year_month=yearMonth,
            year_month_start=yearMonthStart,
            year_month_end=yearMonthEnd,
        )
        return success_response({"list": rows, "total": len(rows)})
    except ValueError as e:
        return error_response(400, str(e))


@router.get("/delivery-lines")
def export_delivery_lines(
    regionId: Optional[str] = Query(None),
    keyword: Optional[str] = Query(None),
    status: Optional[str] = Query(None),
    deliverId: Optional[str] = Query(None),
    startDate: Optional[str] = Query(None),
    endDate: Optional[str] = Query(None),
    yearMonth: Optional[str] = Query(None, description="YYYY-MM；单月兼容"),
    yearMonthStart: Optional[str] = Query(None, description="YYYY-MM 起始月"),
    yearMonthEnd: Optional[str] = Query(None, description="YYYY-MM 结束月"),
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_admin),
):
    eff, err = _resolve_eff_region(db, current_user, regionId)
    if err is not None:
        return err
    try:
        rows = svc.build_delivery_lines(
            db,
            region_id=eff,
            keyword=keyword,
            status=status,
            deliver_id=deliverId,
            start=startDate,
            end=endDate,
            year_month=yearMonth,
            year_month_start=yearMonthStart,
            year_month_end=yearMonthEnd,
        )
        return success_response({"list": rows, "total": len(rows)})
    except ValueError as e:
        return error_response(400, str(e))


@router.get("/delivery-monthly")
def export_delivery_monthly(
    yearMonth: Optional[str] = Query(None, description="YYYY-MM；单月兼容"),
    yearMonthStart: Optional[str] = Query(None, description="YYYY-MM 起始月"),
    yearMonthEnd: Optional[str] = Query(None, description="YYYY-MM 结束月"),
    regionId: Optional[str] = Query(None),
    db: Session = Depends(get_db),
    current_user: dict = Depends(require_admin),
):
    eff, err = _resolve_eff_region(db, current_user, regionId)
    if err is not None:
        return err
    try:
        rows = svc.build_delivery_monthly_summary(
            db,
            region_id=eff,
            year_month=yearMonth,
            year_month_start=yearMonthStart,
            year_month_end=yearMonthEnd,
        )
        return success_response({"list": rows, "total": len(rows)})
    except ValueError as e:
        return error_response(400, str(e))