1.0

internal/handlers/admin_order_message_handler.go

@@ -0,0 +1,184 @@
+package handlers
+
+import (
+	"awesomeProject/internal/common"
+	"awesomeProject/internal/models"
+	"net/http"
+	"strconv"
+
+	"github.com/gin-gonic/gin"
+	"gorm.io/gorm"
+)
+
+// AdminOrderMessageHandler 管理端订单留言处理器
+type AdminOrderMessageHandler struct{}
+
+// GetOrderMessages 获取订单留言列表
+func (h *AdminOrderMessageHandler) GetOrderMessages(c *gin.Context) {
+	orderID, err := strconv.ParseUint(c.Param("order_id"), 10, 32)
+	if err != nil {
+		c.JSON(http.StatusOK, common.Error(400, "订单ID无效"))
+		return
+	}
+
+	orderType := c.Query("type") // purchase 或 sales
+	if orderType == "" {
+		c.JSON(http.StatusOK, common.Error(400, "订单类型无效"))
+		return
+	}
+
+	currentUser, _ := c.Get("current_user")
+	user := currentUser.(models.User)
+
+	// 验证管理员权限
+	if user.SystemRole != 0 && user.SystemRole != 1 {
+		c.JSON(http.StatusOK, common.Error(403, "权限不足"))
+		return
+	}
+
+	// 分页参数
+	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
+	pageSize, _ := strconv.Atoi(c.DefaultQuery("page_size", "20"))
+	if page < 1 {
+		page = 1
+	}
+	if pageSize < 1 || pageSize > 50 {
+		pageSize = 20
+	}
+
+	db := common.GetDB()
+	var messages []models.OrderMessage
+	var total int64
+
+	// 如果是买单，需要同时查询买单和对应卖单的留言
+	var query *gorm.DB
+	if orderType == "purchase" {
+		// 查找是否有对应的卖单
+		var salesOrder models.SalesOrder
+		err := db.Where("purchase_order_id = ?", orderID).First(&salesOrder).Error
+		if err == nil {
+			// 有对应卖单，查询两个订单的留言
+			query = db.Model(&models.OrderMessage{}).
+				Where("(order_id = ? AND order_type = ?) OR (order_id = ? AND order_type = ?)",
+					orderID, "purchase", salesOrder.ID, "sales")
+		} else {
+			// 没有对应卖单，只查询买单留言
+			query = db.Model(&models.OrderMessage{}).
+				Where("order_id = ? AND order_type = ?", orderID, "purchase")
+		}
+	} else {
+		// 卖单，查询卖单和对应买单的留言
+		var salesOrder models.SalesOrder
+		err := db.Where("id = ?", orderID).First(&salesOrder).Error
+		if err != nil {
+			c.JSON(http.StatusOK, common.Error(404, "订单不存在"))
+			return
+		}
+
+		query = db.Model(&models.OrderMessage{}).
+			Where("(order_id = ? AND order_type = ?) OR (order_id = ? AND order_type = ?)",
+				salesOrder.ID, "sales", salesOrder.PurchaseOrderID, "purchase")
+	}
+
+	query = query.Preload("User", func(db *gorm.DB) *gorm.DB {
+		return db.Select("id, customer_name, real_name, phone, system_role")
+	})
+
+	// 获取总数
+	query.Count(&total)
+
+	// 分页查询
+	offset := (page - 1) * pageSize
+	err = query.Order("created_at ASC").Offset(offset).Limit(pageSize).Find(&messages).Error
+	if err != nil {
+		c.JSON(http.StatusOK, common.Error(500, "查询留言列表失败"))
+		return
+	}
+
+	// 构建返回数据
+	result := map[string]interface{}{
+		"list":      messages,
+		"total":     total,
+		"page":      page,
+		"page_size": pageSize,
+	}
+
+	c.JSON(http.StatusOK, common.Success(result))
+}
+
+// CreateOrderMessage 创建订单留言
+func (h *AdminOrderMessageHandler) CreateOrderMessage(c *gin.Context) {
+	orderID, err := strconv.ParseUint(c.Param("order_id"), 10, 32)
+	if err != nil {
+		c.JSON(http.StatusOK, common.Error(400, "订单ID无效"))
+		return
+	}
+
+	orderType := c.Query("type") // purchase 或 sales
+	if orderType == "" {
+		c.JSON(http.StatusOK, common.Error(400, "订单类型无效"))
+		return
+	}
+
+	currentUser, _ := c.Get("current_user")
+	user := currentUser.(models.User)
+
+	// 验证管理员权限
+	if user.SystemRole != 0 && user.SystemRole != 1 {
+		c.JSON(http.StatusOK, common.Error(403, "权限不足"))
+		return
+	}
+
+	var req struct {
+		Content string `json:"content" binding:"required"`
+		Images  string `json:"images"`
+	}
+
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusOK, common.Error(400, "请求参数错误"))
+		return
+	}
+
+	// 验证留言内容
+	if len(req.Content) > 500 {
+		c.JSON(http.StatusOK, common.Error(400, "留言内容不能超过500字"))
+		return
+	}
+
+	// 验证订单是否存在
+	db := common.GetDB()
+	if orderType == "purchase" {
+		var order models.PurchaseOrder
+		if err := db.First(&order, uint(orderID)).Error; err != nil {
+			c.JSON(http.StatusOK, common.Error(404, "订单不存在"))
+			return
+		}
+	} else {
+		var order models.SalesOrder
+		if err := db.First(&order, uint(orderID)).Error; err != nil {
+			c.JSON(http.StatusOK, common.Error(404, "订单不存在"))
+			return
+		}
+	}
+
+	// 创建留言记录
+	message := models.OrderMessage{
+		OrderID:   uint(orderID),
+		OrderType: orderType,
+		UserID:    user.ID,
+		Content:   req.Content,
+		Images:    req.Images,
+	}
+
+	if err := db.Create(&message).Error; err != nil {
+		c.JSON(http.StatusOK, common.Error(500, "创建留言失败"))
+		return
+	}
+
+	// 预加载用户信息
+	db.Preload("User", func(db *gorm.DB) *gorm.DB {
+		return db.Select("id, customer_name, real_name, phone, system_role")
+	}).First(&message, message.ID)
+
+	c.JSON(http.StatusOK, common.Success(message))
+}