package v1

import (
	"strconv"

	"git.lzcwy.cn/zhengchiliu/zt-closet-manage-backend/internal/dto"
	"git.lzcwy.cn/zhengchiliu/zt-closet-manage-backend/internal/middleware"
	"git.lzcwy.cn/zhengchiliu/zt-closet-manage-backend/internal/service"
	"git.lzcwy.cn/zhengchiliu/zt-closet-manage-backend/pkg/app"
	"git.lzcwy.cn/zhengchiliu/zt-closet-manage-backend/pkg/errcode"
	"github.com/gin-gonic/gin"
)

// GoodsHandler 商品管理接口。
type GoodsHandler struct {
	svc *service.GoodsService
}

// NewGoodsHandler 创建商品 handler。
func NewGoodsHandler() *GoodsHandler {
	return &GoodsHandler{svc: service.NewGoodsService()}
}

// List 商品列表（含下架）。
func (h *GoodsHandler) List(c *gin.Context) {
	response := app.NewResponse(c)
	var request dto.GoodsListRequest
	if err := c.ShouldBindQuery(&request); err != nil {
		response.ToErrorResponse(errcode.InvalidParams.WithDetails(err.Error()))
		return
	}
	out, e := h.svc.List(c.Request.Context(), &request)
	if e != nil {
		response.ToErrorResponse(e)
		return
	}
	response.ToResponse(out)
}

// Create 创建商品。
func (h *GoodsHandler) Create(c *gin.Context) {
	response := app.NewResponse(c)
	var request dto.GoodsCreateRequest
	if err := c.ShouldBindJSON(&request); err != nil {
		response.ToErrorResponse(errcode.InvalidParams.WithDetails(err.Error()))
		return
	}
	adminID, _ := middleware.GetAdminID(c.Request.Context())
	out, e := h.svc.Create(c.Request.Context(), adminID, &request)
	if e != nil {
		response.ToErrorResponse(e)
		return
	}
	response.ToResponse(out)
}

// Update 更新商品。
func (h *GoodsHandler) Update(c *gin.Context) {
	response := app.NewResponse(c)
	id, err := strconv.ParseInt(c.Param("id"), 10, 64)
	if err != nil || id <= 0 {
		response.ToErrorResponse(errcode.InvalidParams.WithDetails("非法商品 ID"))
		return
	}
	var request dto.GoodsUpdateRequest
	if err := c.ShouldBindJSON(&request); err != nil {
		response.ToErrorResponse(errcode.InvalidParams.WithDetails(err.Error()))
		return
	}
	adminID, _ := middleware.GetAdminID(c.Request.Context())
	if e := h.svc.Update(c.Request.Context(), adminID, id, &request); e != nil {
		response.ToErrorResponse(e)
		return
	}
	response.ToResponse(nil)
}

// UpdateStatus 商品上下架。
func (h *GoodsHandler) UpdateStatus(c *gin.Context) {
	response := app.NewResponse(c)
	id, err := strconv.ParseInt(c.Param("id"), 10, 64)
	if err != nil || id <= 0 {
		response.ToErrorResponse(errcode.InvalidParams.WithDetails("非法商品 ID"))
		return
	}
	var request dto.GoodsStatusRequest
	if err := c.ShouldBindJSON(&request); err != nil {
		response.ToErrorResponse(errcode.InvalidParams.WithDetails(err.Error()))
		return
	}
	adminID, _ := middleware.GetAdminID(c.Request.Context())
	if e := h.svc.UpdateStatus(c.Request.Context(), adminID, id, &request); e != nil {
		response.ToErrorResponse(e)
		return
	}
	response.ToResponse(nil)
}

// Delete 软删除商品。
func (h *GoodsHandler) Delete(c *gin.Context) {
	response := app.NewResponse(c)
	id, err := strconv.ParseInt(c.Param("id"), 10, 64)
	if err != nil || id <= 0 {
		response.ToErrorResponse(errcode.InvalidParams.WithDetails("非法商品 ID"))
		return
	}
	adminID, _ := middleware.GetAdminID(c.Request.Context())
	if e := h.svc.Delete(c.Request.Context(), adminID, id); e != nil {
		response.ToErrorResponse(e)
		return
	}
	response.ToResponse(nil)
}