"""食谱 API - 支持热量识别与营养分析"""

from typing import Optional
from fastapi import APIRouter, Depends, HTTPException, UploadFile, File
from sqlalchemy.ext.asyncio import AsyncSession

from ..database import get_db
from ..dependencies.auth import get_current_tenant_id
from ..schemas.recipe import (
    RecipeCreate,
    RecipeUpdate,
    RecipeResponse,
    RecipeImageUploadRequest,
    RecipeAnalyzeCaloriesResponse,
)
from ..services.recipe_service import get_recipe_service

router = APIRouter(prefix="/recipes", tags=["食谱"])


@router.post("/", response_model=RecipeResponse, summary="创建食谱")
async def create_recipe(
    recipe_data: RecipeCreate,
    db: AsyncSession = Depends(get_db),
    tenant_id: int = Depends(get_current_tenant_id),
):
    """创建新食谱"""
    service = get_recipe_service()
    recipe = await service.create_recipe(db, recipe_data, tenant_id)
    return recipe


@router.post("/analyze", response_model=RecipeAnalyzeCaloriesResponse, summary="AI 热量分析")
async def analyze_food_calories(
    recipe_data: RecipeCreate,
    food_description: str,
    db: AsyncSession = Depends(get_db),
    tenant_id: int = Depends(get_current_tenant_id),
):
    """
    创建食谱并进行 AI 热量分析

    - food_description: 食物描述（可以是图片识别后的描述）
    """
    service = get_recipe_service()
    recipe, analysis = await service.create_recipe_with_ai_analysis(
        db, recipe_data, food_description, tenant_id
    )

    if not analysis["success"]:
        return RecipeAnalyzeCaloriesResponse(
            success=False,
            data=None,
            message=analysis["message"],
        )

    return RecipeAnalyzeCaloriesResponse(
        success=True,
        data=recipe,
        message=analysis["message"],
    )


@router.get("/", response_model=list[RecipeResponse], summary="获取食谱列表")
async def list_recipes(
    skip: int = 0,
    limit: int = 20,
    category: Optional[str] = None,
    cuisine: Optional[str] = None,
    status: Optional[str] = None,
    is_favorite: Optional[bool] = None,
    db: AsyncSession = Depends(get_db),
    tenant_id: int = Depends(get_current_tenant_id),
):
    """获取食谱列表，支持分类筛选"""
    service = get_recipe_service()
    recipes = await service.list_recipes(
        db,
        tenant_id,
        skip=skip,
        limit=limit,
        category=category,
        cuisine=cuisine,
        status=status,
        is_favorite=is_favorite,
    )
    return recipes


@router.get("/{recipe_id}", response_model=RecipeResponse, summary="获取单个食谱")
async def get_recipe(
    recipe_id: int,
    db: AsyncSession = Depends(get_db),
    tenant_id: int = Depends(get_current_tenant_id),
):
    """获取指定食谱详情"""
    service = get_recipe_service()
    recipe = await service.get_recipe(db, recipe_id, tenant_id)
    if not recipe:
        raise HTTPException(status_code=404, detail="食谱不存在")
    return recipe


@router.put("/{recipe_id}", response_model=RecipeResponse, summary="更新食谱")
async def update_recipe(
    recipe_id: int,
    recipe_data: RecipeUpdate,
    db: AsyncSession = Depends(get_db),
    tenant_id: int = Depends(get_current_tenant_id),
):
    """更新食谱信息"""
    service = get_recipe_service()
    recipe = await service.update_recipe(db, recipe_id, recipe_data, tenant_id)
    if not recipe:
        raise HTTPException(status_code=404, detail="食谱不存在")
    return recipe


@router.delete("/{recipe_id}", summary="删除食谱")
async def delete_recipe(
    recipe_id: int,
    db: AsyncSession = Depends(get_db),
    tenant_id: int = Depends(get_current_tenant_id),
):
    """删除食谱"""
    service = get_recipe_service()
    success = await service.delete_recipe(db, recipe_id, tenant_id)
    if not success:
        raise HTTPException(status_code=404, detail="食谱不存在")
    return {"message": "删除成功"}


@router.post("/{recipe_id}/favorite", response_model=RecipeResponse, summary="收藏/取消收藏食谱")
async def toggle_favorite(
    recipe_id: int,
    db: AsyncSession = Depends(get_db),
    tenant_id: int = Depends(get_current_tenant_id),
):
    """收藏或取消收藏食谱"""
    service = get_recipe_service()
    recipe = await service.get_recipe(db, recipe_id, tenant_id)
    if not recipe:
        raise HTTPException(status_code=404, detail="食谱不存在")

    recipe.is_favorite = not recipe.is_favorite
    await db.commit()
    await db.refresh(recipe)
    return recipe


@router.post("/upload-image", response_model=dict, summary="上传图片（示例）")
async def upload_recipe_image(
    image_base64: str,
    filename: Optional[str] = None,
    db: AsyncSession = Depends(get_db),
    tenant_id: int = Depends(get_current_tenant_id),
):
    """
    上传食谱图片

    注意：这是示例实现，实际项目中需要集成对象存储服务（如 S3、OSS、COS 等）
    """
    service = get_recipe_service()
    image_url = await service.upload_image(image_base64, filename)
    return {"image_url": image_url}