snapshot: AlertCenter拆分前快照

backend/internal/api/handlers/role.go

@@ -0,0 +1,168 @@
+package handlers
+
+import (
+	"net/http"
+	"strconv"
+
+	"ezops/internal/models"
+
+	"github.com/gin-gonic/gin"
+)
+
+// CreateRole 创建角色 // Logan.Li
+// POST /api/v1/admin/roles
+func (h *UserHandler) CreateRole(c *gin.Context) {
+	var req models.CreateRoleRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, models.Response{
+			Code:    400,
+			Message: "请求参数错误: " + err.Error(),
+		})
+		return
+	}
+
+	// 名称 / 编码唯一性校验
+	var existing models.Role
+	if err := h.db.Where("name = ? OR code = ?", req.Name, req.Code).First(&existing).Error; err == nil {
+		c.JSON(http.StatusBadRequest, models.Response{
+			Code:    400,
+			Message: "角色名称或编码已存在",
+		})
+		return
+	}
+
+	role := models.Role{
+		Name:        req.Name,
+		Code:        req.Code,
+		Description: req.Description,
+		Status:      1,
+	}
+	if err := h.db.Create(&role).Error; err != nil {
+		c.JSON(http.StatusInternalServerError, models.Response{
+			Code:    500,
+			Message: "创建角色失败",
+		})
+		return
+	}
+
+	// 关联权限
+	if len(req.PermissionIDs) > 0 {
+		var perms []models.Permission
+		h.db.Find(&perms, req.PermissionIDs)
+		h.db.Model(&role).Association("Permissions").Append(perms)
+	}
+
+	h.db.Preload("Permissions").First(&role, role.ID)
+	c.JSON(http.StatusOK, models.Response{
+		Code:    200,
+		Message: "创建成功",
+		Data:    role,
+	})
+}
+
+// UpdateRole 更新角色 // Logan.Li
+// PUT /api/v1/admin/roles/:id
+func (h *UserHandler) UpdateRole(c *gin.Context) {
+	id, err := strconv.Atoi(c.Param("id"))
+	if err != nil {
+		c.JSON(http.StatusBadRequest, models.Response{Code: 400, Message: "无效的角色 ID"})
+		return
+	}
+
+	var req models.UpdateRoleRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, models.Response{
+			Code:    400,
+			Message: "请求参数错误: " + err.Error(),
+		})
+		return
+	}
+
+	var role models.Role
+	if err := h.db.First(&role, id).Error; err != nil {
+		c.JSON(http.StatusNotFound, models.Response{Code: 404, Message: "角色不存在"})
+		return
+	}
+
+	updates := map[string]interface{}{}
+	if req.Name != "" {
+		// 名称 / 编码唯一性校验（排除自身）
+		var dup models.Role
+		if err := h.db.Where("(name = ? OR code = ?) AND id != ?", req.Name, req.Code, id).First(&dup).Error; err == nil {
+			c.JSON(http.StatusBadRequest, models.Response{Code: 400, Message: "角色名称或编码已存在"})
+			return
+		}
+		updates["name"] = req.Name
+	}
+	if req.Code != "" {
+		updates["code"] = req.Code
+	}
+	if req.Description != nil {
+		updates["description"] = *req.Description
+	}
+	if req.Status != nil {
+		updates["status"] = *req.Status
+	}
+
+	if len(updates) > 0 {
+		if err := h.db.Model(&role).Updates(updates).Error; err != nil {
+			c.JSON(http.StatusInternalServerError, models.Response{Code: 500, Message: "更新失败"})
+			return
+		}
+	}
+
+	// 替换权限关联
+	if req.PermissionIDs != nil {
+		var perms []models.Permission
+		if len(req.PermissionIDs) > 0 {
+			h.db.Find(&perms, req.PermissionIDs)
+		}
+		h.db.Model(&role).Association("Permissions").Replace(perms)
+	}
+
+	h.db.Preload("Permissions").First(&role, id)
+	c.JSON(http.StatusOK, models.Response{
+		Code:    200,
+		Message: "更新成功",
+		Data:    role,
+	})
+}
+
+// DeleteRole 删除角色 // Logan.Li
+// DELETE /api/v1/admin/roles/:id
+func (h *UserHandler) DeleteRole(c *gin.Context) {
+	id, err := strconv.Atoi(c.Param("id"))
+	if err != nil {
+		c.JSON(http.StatusBadRequest, models.Response{Code: 400, Message: "无效的角色 ID"})
+		return
+	}
+
+	var role models.Role
+	if err := h.db.First(&role, id).Error; err != nil {
+		c.JSON(http.StatusNotFound, models.Response{Code: 404, Message: "角色不存在"})
+		return
+	}
+
+	// 清空权限关联后再删除（避免 join 表残留）
+	h.db.Model(&role).Association("Permissions").Clear()
+	if err := h.db.Delete(&role).Error; err != nil {
+		c.JSON(http.StatusInternalServerError, models.Response{Code: 500, Message: "删除失败"})
+		return
+	}
+
+	c.JSON(http.StatusOK, models.Response{
+		Code:    200,
+		Message: "删除成功",
+	})
+}
+
+// ListPermissions 获取权限列表（供前端角色权限选择） // Logan.Li
+// GET /api/v1/admin/permissions
+func (h *UserHandler) ListPermissions(c *gin.Context) {
+	var perms []models.Permission
+	h.db.Where("status = ?", 1).Order("sort ASC, id ASC").Find(&perms)
+	c.JSON(http.StatusOK, models.Response{
+		Code: 200,
+		Data: models.ListResponse{List: perms, Total: int64(len(perms))},
+	})
+}