"""
系统配置相关路由 - 增强版
"""
from fastapi import APIRouter, Depends, HTTPException, Query
from sqlalchemy.orm import Session
from typing import List, Optional
from ..core.database import get_db
from ..schemas.system import (
    SystemConfigCreate, 
    SystemConfigUpdate, 
    SystemConfigResponse,
    SystemConfigGroup,
    SystemConfigSummary,
    ConfigType,
    ConfigCategory
)
from ..services.system_service import SystemService
from ..utils.deps import get_current_admin

router = APIRouter(prefix="/api/system", tags=["system"])


@router.get("/configs", response_model=List[SystemConfigResponse])
def get_all_configs(
    db: Session = Depends(get_db),
    current_user = Depends(get_current_admin),
    category: Optional[ConfigCategory] = Query(None, description="配置分类筛选"),
    editable_only: bool = Query(False, description="仅显示可编辑配置")
):
    """
    获取系统配置（仅管理员）
    """
    if category:
        configs = SystemService.get_configs_by_category(db, category)
    else:
        configs = SystemService.get_all_configs(db)
    
    if editable_only:
        configs = [c for c in configs if c.is_editable]
    
    return configs


@router.get("/configs/groups", response_model=List[SystemConfigGroup])
def get_config_groups(
    db: Session = Depends(get_db),
    current_user = Depends(get_current_admin)
):
    """
    获取配置分组（仅管理员）
    """
    return SystemService.get_config_groups(db)


@router.get("/configs/summary", response_model=SystemConfigSummary)
def get_config_summary(
    db: Session = Depends(get_db),
    current_user = Depends(get_current_admin)
):
    """
    获取配置概览（仅管理员）
    """
    return SystemService.get_config_summary(db)


@router.get("/configs/{key}", response_model=SystemConfigResponse)
def get_config(
    key: str,
    db: Session = Depends(get_db),
    current_user = Depends(get_current_admin)
):
    """
    根据键获取系统配置（仅管理员）
    """
    config = SystemService.get_config(db, key)
    if not config:
        raise HTTPException(status_code=404, detail="配置不存在")
    return config


@router.post("/configs", response_model=SystemConfigResponse)
def create_config(
    config_data: SystemConfigCreate,
    db: Session = Depends(get_db),
    current_user = Depends(get_current_admin)
):
    """
    创建系统配置（仅管理员）
    """
    try:
        return SystemService.create_config(db, config_data)
    except ValueError as e:
        raise HTTPException(status_code=400, detail=str(e))


@router.put("/configs/{key}", response_model=SystemConfigResponse)
def update_config(
    key: str,
    config_data: SystemConfigUpdate,
    db: Session = Depends(get_db),
    current_user = Depends(get_current_admin)
):
    """
    更新系统配置（仅管理员）
    """
    try:
        config = SystemService.update_config(db, key, config_data)
        if not config:
            raise HTTPException(status_code=404, detail="配置不存在")
        return config
    except ValueError as e:
        raise HTTPException(status_code=400, detail=str(e))


@router.delete("/configs/{key}")
def delete_config(
    key: str,
    db: Session = Depends(get_db),
    current_user = Depends(get_current_admin)
):
    """
    删除系统配置（仅管理员）
    """
    try:
        success = SystemService.delete_config(db, key)
        if not success:
            raise HTTPException(status_code=404, detail="配置不存在")
        return {"message": "配置删除成功"}
    except ValueError as e:
        raise HTTPException(status_code=400, detail=str(e))


@router.get("/public/configs")
def get_public_configs(
    db: Session = Depends(get_db)
):
    """
    获取公开配置（无需认证）
    """
    return SystemService.get_public_configs(db)


@router.post("/configs/initialize")
def initialize_configs(
    db: Session = Depends(get_db),
    current_user = Depends(get_current_admin)
):
    """
    初始化默认配置（仅管理员）
    """
    SystemService.initialize_default_configs(db)
    return {"message": "默认配置初始化成功"}