package handlers

import (
	"github.com/gin-gonic/gin"
	"gorm.io/gorm"

	"soda-api/backend/internal/models"
	"soda-api/backend/internal/utils"
)

type PointsHandler struct {
	db *gorm.DB
}

func NewPointsHandler(db *gorm.DB) *PointsHandler {
	return &PointsHandler{db: db}
}

func (h *PointsHandler) List(c *gin.Context) {
	var records []models.PointTransaction
	if err := h.db.Preload("Member").Order("id desc").Find(&records).Error; err != nil {
		utils.JSONError(c, 500, "获取积分记录失败")
		return
	}
	utils.JSONSuccess(c, records)
}

func (h *PointsHandler) Create(c *gin.Context) {
	var record models.PointTransaction
	if err := c.ShouldBindJSON(&record); err != nil {
		utils.JSONError(c, 400, "请填写积分变更信息")
		return
	}
	if err := h.db.Create(&record).Error; err != nil {
		utils.JSONError(c, 500, "写入失败")
		return
	}
	h.db.Model(&models.Member{}).Where("id = ?", record.MemberID).UpdateColumn("points", gorm.Expr("points + ?", record.Change))
	utils.JSONSuccess(c, record)
}

func (h *PointsHandler) Delete(c *gin.Context) {
	if err := h.db.Delete(&models.PointTransaction{}, c.Param("id")).Error; err != nil {
		utils.JSONError(c, 500, "删除失败")
		return
	}
	utils.JSONSuccess(c, gin.H{"message": "删除成功"})
}