package app

import (
	"net/http"
	"strconv"

	"bindbox-game/internal/code"
	"bindbox-game/internal/pkg/core"
	"bindbox-game/internal/pkg/validation"
	"bindbox-game/internal/repository/mysql/model"
)

type listCouponsRequest struct {
	Page     int `form:"page"`
	PageSize int `form:"page_size"`
}
type listCouponsResponse struct {
	Page     int                  `json:"page"`
	PageSize int                  `json:"page_size"`
	Total    int64                `json:"total"`
	List     []*model.UserCoupons `json:"list"`
}

// ListUserCoupons 查看用户优惠券
// @Summary 查看用户优惠券
// @Description 查看用户持有的优惠券列表
// @Tags APP端.用户
// @Accept json
// @Produce json
// @Param user_id path integer true "用户ID"
// @Param page query int true "页码" default(1)
// @Param page_size query int true "每页数量，最多100" default(20)
// @Success 200 {object} listCouponsResponse
// @Failure 400 {object} code.Failure
// @Router /api/app/users/{user_id}/coupons [get]
func (h *handler) ListUserCoupons() core.HandlerFunc {
	return func(ctx core.Context) {
		req := new(listCouponsRequest)
		rsp := new(listCouponsResponse)
		if err := ctx.ShouldBindForm(req); err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.ParamBindError, validation.Error(err)))
			return
		}
		userID, err := strconv.ParseInt(ctx.Param("user_id"), 10, 64)
		if err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, code.ParamBindError, "未传递用户ID"))
			return
		}
		items, total, err := h.user.ListCoupons(ctx.RequestContext(), userID, req.Page, req.PageSize)
		if err != nil {
			ctx.AbortWithError(core.Error(http.StatusBadRequest, 10003, err.Error()))
			return
		}
		rsp.Page = req.Page
		rsp.PageSize = req.PageSize
		rsp.Total = total
		rsp.List = items
		ctx.Payload(rsp)
	}
}