"""
机构网点API路由
"""
from typing import List, Optional
from fastapi import APIRouter, Depends, HTTPException, status, Query
from sqlalchemy.orm import Session
from app.core.deps import get_db, get_current_user
from app.schemas.organization import (
    OrganizationCreate,
    OrganizationUpdate,
    OrganizationResponse,
    OrganizationTreeNode,
    OrganizationWithParent
)
from app.services.organization_service import organization_service
from app.utils.redis_client import redis_client

router = APIRouter()


# 异步缓存包装器
@redis_client.cached_async("organizations:list", expire=1800)  # 缓存30分钟
async def _cached_get_organizations(
    skip: int,
    limit: int,
    org_type: Optional[str],
    status: Optional[str],
    keyword: Optional[str],
    db: Session
):
    """获取机构列表的缓存包装器"""
    items, total = organization_service.get_organizations(
        db=db,
        skip=skip,
        limit=limit,
        org_type=org_type,
        status=status,
        keyword=keyword
    )
    return items


@redis_client.cached_async("organizations:tree", expire=1800)  # 缓存30分钟
async def _cached_get_organization_tree(
    status: Optional[str],
    db: Session
):
    """获取机构树的缓存包装器"""
    return organization_service.get_organization_tree(db, status)


@router.get("/", response_model=List[OrganizationResponse])
async def get_organizations(
    skip: int = Query(0, ge=0, description="跳过条数"),
    limit: int = Query(20, ge=1, le=100, description="返回条数"),
    org_type: Optional[str] = Query(None, description="机构类型"),
    status: Optional[str] = Query(None, description="状态"),
    keyword: Optional[str] = Query(None, description="搜索关键词"),
    db: Session = Depends(get_db),
    current_user = Depends(get_current_user)
):
    """
    获取机构列表（已启用缓存，30分钟）

    - **skip**: 跳过条数
    - **limit**: 返回条数（最大100）
    - **org_type**: 机构类型筛选（province/city/outlet）
    - **status**: 状态筛选（active/inactive）
    - **keyword**: 搜索关键词（代码或名称）
    """
    return await _cached_get_organizations(
        skip=skip,
        limit=limit,
        org_type=org_type,
        status=status,
        keyword=keyword,
        db=db
    )


@router.get("/tree", response_model=List[OrganizationTreeNode])
async def get_organization_tree(
    status: Optional[str] = Query(None, description="状态筛选"),
    db: Session = Depends(get_db),
    current_user = Depends(get_current_user)
):
    """
    获取机构树（已启用缓存，30分钟）

    - **status**: 状态筛选（active/inactive）

    返回树形结构的机构列表
    """
    return await _cached_get_organization_tree(status, db)


@router.get("/{org_id}", response_model=OrganizationWithParent)
def get_organization(
    org_id: int,
    db: Session = Depends(get_db),
    current_user = Depends(get_current_user)
):
    """
    获取机构详情

    - **org_id**: 机构ID

    返回机构详情及其父机构信息
    """
    org = organization_service.get_organization(db, org_id)

    # 加载父机构信息
    if org.parent_id:
        from app.crud.organization import organization as organization_crud
        parent = organization_crud.get(db, org.parent_id)
        org.parent = parent

    return org


@router.get("/{org_id}/children", response_model=List[OrganizationResponse])
def get_organization_children(
    org_id: int,
    db: Session = Depends(get_db),
    current_user = Depends(get_current_user)
):
    """
    获取直接子机构

    - **org_id**: 父机构ID（0表示根节点）

    返回指定机构的直接子机构列表
    """
    return organization_service.get_organization_children(db, org_id)


@router.get("/{org_id}/all-children", response_model=List[OrganizationResponse])
def get_all_organization_children(
    org_id: int,
    db: Session = Depends(get_db),
    current_user = Depends(get_current_user)
):
    """
    递归获取所有子机构

    - **org_id**: 父机构ID

    返回指定机构的所有子机构（包括子节点的子节点）
    """
    return organization_service.get_all_children(db, org_id)


@router.get("/{org_id}/parents", response_model=List[OrganizationResponse])
def get_organization_parents(
    org_id: int,
    db: Session = Depends(get_db),
    current_user = Depends(get_current_user)
):
    """
    递归获取所有父机构

    - **org_id**: 子机构ID

    返回从根到直接父节点的所有父机构列表
    """
    return organization_service.get_parents(db, org_id)


@router.post("/", response_model=OrganizationResponse, status_code=status.HTTP_201_CREATED)
def create_organization(
    obj_in: OrganizationCreate,
    db: Session = Depends(get_db),
    current_user = Depends(get_current_user)
):
    """
    创建机构

    - **org_code**: 机构代码（唯一）
    - **org_name**: 机构名称
    - **org_type**: 机构类型（province/city/outlet）
    - **parent_id**: 父机构ID（可选）
    - **address**: 地址
    - **contact_person**: 联系人
    - **contact_phone**: 联系电话
    - **sort_order**: 排序
    """
    return organization_service.create_organization(
        db=db,
        obj_in=obj_in,
        creator_id=current_user.id
    )


@router.put("/{org_id}", response_model=OrganizationResponse)
def update_organization(
    org_id: int,
    obj_in: OrganizationUpdate,
    db: Session = Depends(get_db),
    current_user = Depends(get_current_user)
):
    """
    更新机构

    - **org_id**: 机构ID
    - **org_name**: 机构名称
    - **org_type**: 机构类型
    - **parent_id**: 父机构ID
    - **address**: 地址
    - **contact_person**: 联系人
    - **contact_phone**: 联系电话
    - **status**: 状态
    - **sort_order**: 排序
    """
    return organization_service.update_organization(
        db=db,
        org_id=org_id,
        obj_in=obj_in,
        updater_id=current_user.id
    )


@router.delete("/{org_id}", status_code=status.HTTP_204_NO_CONTENT)
def delete_organization(
    org_id: int,
    db: Session = Depends(get_db),
    current_user = Depends(get_current_user)
):
    """
    删除机构

    - **org_id**: 机构ID

    软删除机构（如果机构下存在子机构则无法删除）
    """
    organization_service.delete_organization(
        db=db,
        org_id=org_id,
        deleter_id=current_user.id
    )
    return None