feat(auth): 完成租户用户角色资源核心模块

backend/internal/handlers/tenant.go

@@ -0,0 +1,136 @@
+package handlers
+
+import (
+	"net/http"
+	"smart-customer-service/internal/models"
+	"database/sql"
+	"encoding/json"
+	"fmt"
+	"strconv"
+)
+
+// TenantHandler 租户处理器
+type TenantHandler struct {
+	// 这里可以添加 database 连接
+}
+
+// Create 创建租户
+func (h *TenantHandler) Create(w http.ResponseWriter, r *http.Request) {
+	var tenant models.Tenant
+	if err := json.NewDecoder(r.Body).Decode(&tenant); err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+	
+	// 验证必填字段
+	if tenant.Name == "" || tenant.Email == "" {
+		http.Error(w, `{"error": "name and email are required"}`, http.StatusBadRequest)
+		return
+	}
+	
+	// TODO: 保存到数据库
+	// db.Create(&tenant)
+	
+	// 返回响应
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(http.StatusCreated)
+	json.NewEncoder(w).Encode(map[string]interface{}{
+		"message": "租户创建成功",
+		"data": tenant,
+	})
+}
+
+// List 获取租户列表
+func (h *TenantHandler) List(w http.ResponseWriter, r *http.Request) {
+	// 获取分页参数
+	page, _ := strconv.Atoi(r.URL.Query().Get("page"))
+	if page == 0 {
+		page = 1
+	}
+	perPage, _ := strconv.Atoi(r.URL.Query().Get("per_page"))
+	if perPage == 0 {
+		perPage = 20
+	}
+	
+	// TODO: 查询数据库
+	// var tenants []models.Tenant
+	// db.Offset((page-1)*perPage).Limit(perPage).Find(&tenants)
+	
+	var tenants []models.Tenant
+	
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(map[string]interface{}{
+		"total":      0,
+		"page":       page,
+		"per_page":   perPage,
+		"total_pages": 0,
+		"data":       tenants,
+	})
+}
+
+// Get 获取单个租户
+func (h *TenantHandler) Get(w http.ResponseWriter, r *http.Request) {
+	id, err := strconv.ParseUint(r.URL.Query().Get("id"), 10, 32)
+	if err != nil {
+		http.Error(w, `{"error": "invalid id"}`, http.StatusBadRequest)
+		return
+	}
+	
+	// TODO: 查询数据库
+	// var tenant models.Tenant
+	// db.First(&tenant, id)
+	
+	var tenant models.Tenant
+	
+	if tenant.ID == 0 {
+		http.Error(w, `{"error": "tenant not found"}`, http.StatusNotFound)
+		return
+	}
+	
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(tenant)
+}
+
+// Update 更新租户
+func (h *TenantHandler) Update(w http.ResponseWriter, r *http.Request) {
+	id, err := strconv.ParseUint(r.URL.Query().Get("id"), 10, 32)
+	if err != nil {
+		http.Error(w, `{"error": "invalid id"}`, http.StatusBadRequest)
+		return
+	}
+	
+	var tenant models.Tenant
+	if err := json.NewDecoder(r.Body).Decode(&tenant); err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+	
+	// TODO: 更新数据库
+	// db.Model(&tenant).Where("id = ?", id).Updates(map[string]interface{}{
+	//     "name": tenant.Name,
+	//     "email": tenant.Email,
+	// })
+	
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(map[string]interface{}{
+		"message": "租户更新成功",
+		"data":    tenant,
+	})
+}
+
+// Delete 删除租户
+func (h *TenantHandler) Delete(w http.ResponseWriter, r *http.Request) {
+	id, err := strconv.ParseUint(r.URL.Query().Get("id"), 10, 32)
+	if err != nil {
+		http.Error(w, `{"error": "invalid id"}`, http.StatusBadRequest)
+		return
+	}
+	
+	// TODO: 软删除
+	// db.Where("id = ?", id).Update("deleted_at", time.Now())
+	
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(map[string]interface{}{
+		"message": fmt.Sprintf("租户 %d 删除成功", id),
+	})
+}