package api

import (
	"box-cost/db/model"
	"box-cost/db/repo"
	"box-cost/log"
	"errors"
	"fmt"
	"time"

	"github.com/gin-gonic/gin"
	"go.mongodb.org/mongo-driver/bson"
	"go.mongodb.org/mongo-driver/bson/primitive"
	"go.mongodb.org/mongo-driver/mongo/options"
)

// 供应商管理
func Supplier(r *GinRouter) {

	// 创建供应商
	r.POST("/supplier/create", CreateSupplier)

	// 获取供应商详情
	r.GET("/supplier/detail/:id", GetSupplier)

	// 获取供应商列表
	r.GET("/supplier/list", GetSuppliers)

	// 更新供应商
	r.POST("/supplier/update", UpdateSupplier)

	// 删除供应商
	r.POST("/supplier/delete/:id", DelSupplier)

	// 获取供应商列表
	r.GET("/plan/supplier/list", GetPlanSuppliers)
}

// 创建供应商
func CreateSupplier(c *gin.Context, apictx *ApiSession) (interface{}, error) {

	var supplier model.Supplier

	err := c.ShouldBindJSON(&supplier)
	if err != nil {
		fmt.Println(err)
		return nil, errors.New("参数错误！")
	}
	ctx := apictx.CreateRepoCtx()

	if supplier.Name == "" {
		return nil, errors.New("供应商名为空")
	}
	if supplier.Address == "" {
		return nil, errors.New("供应商地址为空")
	}
	if supplier.Phone == "" {
		return nil, errors.New("供应商联系电话为空")
	}

	supplier.CreateTime = time.Now()
	supplier.UpdateTime = time.Now()

	result, err := repo.RepoAddDoc(ctx, repo.CollectionSupplier, &supplier)
	return result, err
}

// 获取供应商信息
func GetSupplier(c *gin.Context, apictx *ApiSession) (interface{}, error) {
	supplierId := c.Param("id")
	id, err := primitive.ObjectIDFromHex(supplierId)
	if err != nil {
		return nil, errors.New("非法id")
	}
	var supplier model.Supplier
	option := &repo.DocSearchOptions{
		CollectName: repo.CollectionSupplier,
		Query:       repo.Map{"_id": id},
	}

	found, err := repo.RepoSeachDoc(apictx.CreateRepoCtx(), option, &supplier)
	if !found || err != nil {
		log.Info(err)
		return nil, errors.New("数据未找到")
	}

	return supplier, nil
}

// 获取供应商列表
func GetSuppliers(c *gin.Context, apictx *ApiSession) (interface{}, error) {

	page, size, query := UtilQueryPageSize(c)

	if cate, ok := query["category"]; ok {
		delete(query, "category")
		query["categorys"] = bson.M{"$in": []string{cate.(string)}}
	}

	option := &repo.PageSearchOptions{
		CollectName: repo.CollectionSupplier,
		Query:       query,
		Page:        page,
		Size:        size,
		Sort:        bson.M{"createTime": -1},
	}
	return repo.RepoPageSearch(apictx.CreateRepoCtx(), option)
}

func GetPlanSuppliers(c *gin.Context, apictx *ApiSession) (interface{}, error) {
	page, size, query := UtilQueryPageSize(c)
	//category =>根据内容查询 供应对应内容的供应商
	emtyPage := &repo.PageResult{
		Total: 0,
		Size:  size,
		Page:  page,
		List:  []map[string]interface{}{},
	}
	listOut := []map[string]interface{}{}
	if len(query) == 0 {
		option := &repo.PageSearchOptions{
			CollectName: repo.CollectionSupplier,
			Query:       query,
			Page:        page,
			Size:        size,
			Sort:        bson.M{"createTime": -1},
		}
		return repo.RepoPageSearch(apictx.CreateRepoCtx(), option)
	}

	if cate, ok := query["category"]; ok {
		delete(query, "category")
		option := &repo.PageSearchOptions{
			CollectName: repo.CollectionSupplier,
			Query:       repo.Map{"categorys": bson.M{"$in": []string{cate.(string)}}},
			Page:        page,
			Size:        size,
			Sort:        bson.M{"createTime": -1},
		}
		return repo.RepoPageSearch(apictx.CreateRepoCtx(), option)
	}

	if query["matId"] != nil {
		matId := query["matId"].(string)
		if len(matId) < 1 {
			return nil, fmt.Errorf("matId(string)为空")
		}
		id, _ := primitive.ObjectIDFromHex(matId)
		ok, list := repo.RepoSeachDocsMap(apictx.CreateRepoCtx(), &repo.DocsSearchOptions{
			CollectName: repo.CollectionSupplierMatprice,
			Query:       repo.Map{"productId": id},
			Project:     []string{"supplierId"},
		})
		if !ok {
			return emtyPage, nil
		}

		listOut = list
	}

	if query["craftId"] != nil {

		// if query["craftId"] == nil {
		// 	return nil, fmt.Errorf("参数错误 craftId 或matId不能为空")
		// }

		cratf := &model.Craft{}

		ok, _ := repo.RepoSeachDoc(apictx.CreateRepoCtx(), &repo.DocSearchOptions{
			Query:       repo.Map{"_id": query["craftId"].(string)},
			CollectName: repo.CollectionCraft,
		}, cratf)

		if !ok {
			return nil, fmt.Errorf("没有对应的工艺信息")
		}

		//查询工艺分类
		pipleLine := []bson.M{
			{
				"$lookup": bson.M{
					"from":         repo.CollectionCraft,
					"localField":   "productId",
					"foreignField": "_id",
					"as":           "craft_docs",
				},
			},
			{
				"$match": bson.M{
					"craft_docs.0.category": cratf.Category,
				},
			},
			{
				"$project": bson.M{
					"craft_docs": 0,
					"createTime": 0,
					"price":      0,
					"productId":  0,
					"updateTime": 0,
				},
			},
		}
		ctx := apictx.CreateRepoCtx()

		colls := ctx.Client.GetCollection(repo.CollectionSupplierCraftprice)

		findoptions := &options.AggregateOptions{}

		cur, err := colls.Aggregate(ctx.Ctx, pipleLine, findoptions)
		if err != nil {
			return nil, err
		}

		defer cur.Close(ctx.Ctx)

		err = cur.All(ctx.Ctx, &listOut)

		if err != nil {
			return nil, err
		}
		if len(listOut) < 1 {
			return emtyPage, nil
		}
	}

	if query["productId"] != nil {
		productId := query["productId"].(string)
		if len(productId) < 1 {
			return nil, fmt.Errorf("productId(string)为空")
		}
		id, _ := primitive.ObjectIDFromHex(productId)
		ok, list := repo.RepoSeachDocsMap(apictx.CreateRepoCtx(), &repo.DocsSearchOptions{
			CollectName: repo.CollectionSupplierProductprice,
			Query:       repo.Map{"productId": id},
			Project:     []string{"supplierId"},
		})
		if !ok {
			return emtyPage, nil
		}

		listOut = list
	}

	//获取供应商列表
	suppliers := []primitive.ObjectID{}
	suppliersMap := map[string]bool{}
	for _, item := range listOut {
		if item["supplierId"] != nil {

			id, ok := item["supplierId"].(primitive.ObjectID)
			if !ok {
				continue
			}
			if !suppliersMap[id.Hex()] {
				suppliers = append(suppliers, id)
				suppliersMap[id.Hex()] = true
			}
		}
	}
	if len(suppliers) < 1 {
		return emtyPage, nil
	}

	option := &repo.PageSearchOptions{
		CollectName: repo.CollectionSupplier,
		Query:       repo.Map{"_id": bson.M{"$in": suppliers}},
		Page:        page,
		Size:        size,
		Sort:        bson.M{"createTime": -1},
	}
	return repo.RepoPageSearch(apictx.CreateRepoCtx(), option)
}

// 更新供应商
func UpdateSupplier(c *gin.Context, apictx *ApiSession) (interface{}, error) {
	var supplier model.Supplier
	err := c.ShouldBindJSON(&supplier)
	if err != nil {
		return nil, errors.New("参数错误")
	}
	if supplier.Id.Hex() == "" {
		return nil, errors.New("id的为空")
	}
	supplier.UpdateTime = time.Now()
	return repo.RepoUpdateSetDoc(apictx.CreateRepoCtx(), repo.CollectionSupplier, supplier.Id.Hex(), &supplier)
}

// 删除供应商
func DelSupplier(c *gin.Context, apictx *ApiSession) (interface{}, error) {
	supplierId := c.Param("id")
	if supplierId == "" {
		return nil, errors.New("id为空")
	}

	return repo.RepoDeleteDoc(apictx.CreateRepoCtx(), repo.CollectionSupplier, supplierId)
}