package admin

import (
	"net/http"
	"strconv"

	"bindbox-game/internal/code"
	"bindbox-game/internal/pkg/core"
	"bindbox-game/internal/pkg/validation"
	prodsvc "bindbox-game/internal/service/product"
)

type createProductRequest struct {
	Name        string `json:"name" binding:"required"`
	CategoryID  int64  `json:"category_id" binding:"required"`
	ImagesJSON  string `json:"images_json"`
	Price       int64  `json:"price" binding:"required"`
	Stock       int64  `json:"stock" binding:"required"`
	Status      int32  `json:"status"`
	Description string `json:"description"`
}

type createProductResponse struct {
	ID      int64  `json:"id"`
	Message string `json:"message"`
}

// CreateProduct 创建商品
// @Summary 创建商品
// @Tags 管理端.商品
// @Accept json
// @Produce json
// @Param RequestBody body createProductRequest true "请求参数"
// @Success 200 {object} createProductResponse
// @Failure 400 {object} code.Failure
// @Router /api/admin/products [post]
// @Security LoginVerifyToken
func (h *handler) CreateProduct() core.HandlerFunc {
	return func(ctx core.Context) {
		req := new(createProductRequest)
		res := new(createProductResponse)
		if err := ctx.ShouldBindJSON(req); err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.ParamBindError, validation.Error(err)))
			return
		}
		if ctx.SessionUserInfo().IsSuper != 1 {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.CreateAdminError, "禁止操作"))
			return
		}
		item, err := h.product.CreateProduct(ctx.RequestContext(), prodsvc.CreateProductInput{Name: req.Name, CategoryID: req.CategoryID, ImagesJSON: req.ImagesJSON, Price: req.Price, Stock: req.Stock, Status: req.Status, Description: req.Description})
		if err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.CreateAdminError, err.Error()))
			return
		}
		res.ID = item.ID
		res.Message = "操作成功"
		ctx.Payload(res)
	}
}

type modifyProductRequest struct {
	Name        *string `json:"name"`
	CategoryID  *int64  `json:"category_id"`
	ImagesJSON  *string `json:"images_json"`
	Price       *int64  `json:"price"`
	Stock       *int64  `json:"stock"`
	Status      *int32  `json:"status"`
	Description *string `json:"description"`
}

// ModifyProduct 修改商品
// @Summary 修改商品
// @Tags 管理端.商品
// @Accept json
// @Produce json
// @Param product_id path string true "商品ID"
// @Param RequestBody body modifyProductRequest true "请求参数"
// @Success 200 {object} pcSimpleMessage
// @Failure 400 {object} code.Failure
// @Router /api/admin/products/{product_id} [put]
// @Security LoginVerifyToken
func (h *handler) ModifyProduct() core.HandlerFunc {
	return func(ctx core.Context) {
		req := new(modifyProductRequest)
		if err := ctx.ShouldBindJSON(req); err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.ParamBindError, validation.Error(err)))
			return
		}
		idStr := ctx.Param("product_id")
		id, _ := strconv.ParseInt(idStr, 10, 64)
		if ctx.SessionUserInfo().IsSuper != 1 {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.CreateAdminError, "禁止操作"))
			return
		}
		if err := h.product.ModifyProduct(ctx.RequestContext(), id, prodsvc.ModifyProductInput{Name: req.Name, CategoryID: req.CategoryID, ImagesJSON: req.ImagesJSON, Price: req.Price, Stock: req.Stock, Status: req.Status, Description: req.Description}); err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.CreateAdminError, err.Error()))
			return
		}
		ctx.Payload(pcSimpleMessage{Message: "操作成功"})
	}
}

// DeleteProduct 删除商品
// @Summary 删除商品
// @Tags 管理端.商品
// @Accept json
// @Produce json
// @Param product_id path string true "商品ID"
// @Success 200 {object} pcSimpleMessage
// @Failure 400 {object} code.Failure
// @Router /api/admin/products/{product_id} [delete]
// @Security LoginVerifyToken
func (h *handler) DeleteProduct() core.HandlerFunc {
	return func(ctx core.Context) {
		idStr := ctx.Param("product_id")
		id, _ := strconv.ParseInt(idStr, 10, 64)
		if ctx.SessionUserInfo().IsSuper != 1 {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.CreateAdminError, "禁止操作"))
			return
		}
		if err := h.product.DeleteProduct(ctx.RequestContext(), id); err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.CreateAdminError, err.Error()))
			return
		}
		ctx.Payload(pcSimpleMessage{Message: "操作成功"})
	}
}

type listProductsRequest struct {
	Name       string `form:"name"`
	CategoryID *int64 `form:"category_id"`
	Status     *int32 `form:"status"`
	Page       int    `form:"page"`
	PageSize   int    `form:"page_size"`
}

type productItem struct {
	ID          int64  `json:"id"`
	Name        string `json:"name"`
	CategoryID  int64  `json:"category_id"`
	ImagesJSON  string `json:"images_json"`
	Price       int64  `json:"price"`
	Stock       int64  `json:"stock"`
	Sales       int64  `json:"sales"`
	Status      int32  `json:"status"`
	Description string `json:"description"`
}
type listProductsResponse struct {
	Page     int           `json:"page"`
	PageSize int           `json:"page_size"`
	Total    int64         `json:"total"`
	List     []productItem `json:"list"`
}

// ListProducts 查看商品列表
// @Summary 查看商品列表
// @Tags 管理端.商品
// @Accept json
// @Produce json
// @Param name query string false "名称"
// @Param category_id query int false "分类ID"
// @Param status query int false "状态"
// @Param page query int true "页码" default(1)
// @Param page_size query int true "每页数量" default(20)
// @Success 200 {object} listProductsResponse
// @Failure 400 {object} code.Failure
// @Router /api/admin/products [get]
// @Security LoginVerifyToken
func (h *handler) ListProducts() core.HandlerFunc {
	return func(ctx core.Context) {
		req := new(listProductsRequest)
		res := new(listProductsResponse)
		if err := ctx.ShouldBindForm(req); err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.ParamBindError, validation.Error(err)))
			return
		}
		items, total, err := h.product.ListProducts(ctx.RequestContext(), prodsvc.ListProductsInput{Name: req.Name, CategoryID: req.CategoryID, Status: req.Status, Page: req.Page, PageSize: req.PageSize})
		if err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.CreateAdminError, err.Error()))
			return
		}
		res.Page = req.Page
		res.PageSize = req.PageSize
		res.Total = total
		res.List = make([]productItem, len(items))
		for i, it := range items {
			res.List[i] = productItem{ID: it.ID, Name: it.Name, CategoryID: it.CategoryID, ImagesJSON: it.ImagesJSON, Price: it.Price, Stock: it.Stock, Sales: it.Sales, Status: it.Status, Description: it.Description}
		}
		ctx.Payload(res)
	}
}