实现租户坐席账号管理

新增 /api/staff 列表/创建/更新/禁用，按租户坐席配额校验；系统设置增加坐席账号页支持增改禁与配额展示。
2026-07-15 14:07:06 +08:00
parent 34d3866520
commit ea3901d8b0
4 changed files with 696 additions and 16 deletions
@@ -0,0 +1,355 @@
+package handler
+
+import (
+	"net/http"
+	"strings"
+	"unicode/utf8"
+
+	"github.com/gin-gonic/gin"
+	"golang.org/x/crypto/bcrypt"
+	"kefu-sys/server/internal/middleware"
+	"kefu-sys/server/internal/model"
+)
+
+type StaffHandler struct{}
+
+func NewStaffHandler() *StaffHandler { return &StaffHandler{} }
+
+func requireStaffManager(c *gin.Context) bool {
+	if middleware.HasAnyRole(c, "admin") {
+		return true
+	}
+	c.JSON(http.StatusForbidden, gin.H{"code": 403, "message": "仅租户管理员可管理坐席账号"})
+	return false
+}
+
+// 坐席占用：本租户下 agent / supervisor / admin 均计 1 席（不含 disabled）
+func countActiveSeats(tenantID uint) (int64, error) {
+	var n int64
+	err := model.DB.Model(&model.User{}).
+		Where("tenant_id = ? AND role IN ? AND status <> ?", tenantID, []string{"agent", "supervisor", "admin"}, "disabled").
+		Count(&n).Error
+	return n, err
+}
+
+func loadTenantSeatLimit(tenantID uint) (int, error) {
+	var tenant model.Tenant
+	if err := model.DB.Select("id", "seat_count").First(&tenant, tenantID).Error; err != nil {
+		return 0, err
+	}
+	if tenant.SeatCount <= 0 {
+		return 2, nil
+	}
+	return tenant.SeatCount, nil
+}
+
+type StaffItem struct {
+	ID           uint   `json:"id"`
+	Username     string `json:"username"`
+	Nickname     string `json:"nickname"`
+	Role         string `json:"role"`
+	Status       string `json:"status"`
+	CreatedAt    string `json:"created_at"`
+	LastOnlineAt string `json:"last_online_at,omitempty"`
+}
+
+func (h *StaffHandler) List(c *gin.Context) {
+	if !middleware.HasAnyRole(c, "admin", "supervisor") {
+		c.JSON(http.StatusForbidden, gin.H{"code": 403, "message": "无权查看坐席列表"})
+		return
+	}
+	tenantID := middleware.GetTenantID(c)
+	var users []model.User
+	if err := model.DB.Where("tenant_id = ? AND role IN ?", tenantID, []string{"agent", "supervisor", "admin"}).
+		Order("role asc, id asc").Find(&users).Error; err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": "查询坐席失败"})
+		return
+	}
+	seatLimit, _ := loadTenantSeatLimit(tenantID)
+	used, _ := countActiveSeats(tenantID)
+
+	items := make([]StaffItem, 0, len(users))
+	for _, u := range users {
+		item := StaffItem{
+			ID: u.ID, Username: u.Username, Nickname: u.Nickname,
+			Role: u.Role, Status: u.Status,
+			CreatedAt: u.CreatedAt.Format("2006-01-02 15:04:05"),
+		}
+		if u.LastOnlineAt != nil {
+			item.LastOnlineAt = u.LastOnlineAt.Format("2006-01-02 15:04:05")
+		}
+		items = append(items, item)
+	}
+	middleware.JSON(c, gin.H{
+		"list":       items,
+		"seat_limit": seatLimit,
+		"seat_used":  used,
+	})
+}
+
+type CreateStaffReq struct {
+	Username string `json:"username" binding:"required"`
+	Password string `json:"password" binding:"required"`
+	Nickname string `json:"nickname"`
+	Role     string `json:"role"`
+}
+
+func (h *StaffHandler) Create(c *gin.Context) {
+	if !requireStaffManager(c) {
+		return
+	}
+	var req CreateStaffReq
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "参数错误"})
+		return
+	}
+	username := strings.TrimSpace(req.Username)
+	if utf8.RuneCountInString(username) < 3 || utf8.RuneCountInString(username) > 30 {
+		c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "用户名需 3-30 个字符"})
+		return
+	}
+	if len(req.Password) < 6 || len(req.Password) > 64 {
+		c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "密码需 6-64 位"})
+		return
+	}
+	role := req.Role
+	if role == "" {
+		role = "agent"
+	}
+	if role != "agent" && role != "supervisor" {
+		c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "仅可创建客服或主管账号"})
+		return
+	}
+	nickname := strings.TrimSpace(req.Nickname)
+	if nickname == "" {
+		nickname = username
+	}
+	if utf8.RuneCountInString(nickname) > 50 {
+		c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "昵称过长"})
+		return
+	}
+
+	tenantID := middleware.GetTenantID(c)
+	seatLimit, err := loadTenantSeatLimit(tenantID)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": "读取坐席配额失败"})
+		return
+	}
+	used, err := countActiveSeats(tenantID)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": "统计坐席失败"})
+		return
+	}
+	if used >= int64(seatLimit) {
+		c.JSON(http.StatusConflict, gin.H{"code": 409, "message": "坐席数已达上限，请升级套餐或增加坐席"})
+		return
+	}
+
+	var exists int64
+	model.DB.Model(&model.User{}).Where("username = ?", username).Count(&exists)
+	if exists > 0 {
+		c.JSON(http.StatusConflict, gin.H{"code": 409, "message": "用户名已存在"})
+		return
+	}
+
+	hash, err := bcrypt.GenerateFromPassword([]byte(req.Password), bcrypt.DefaultCost)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": "创建失败"})
+		return
+	}
+	user := model.User{
+		TenantID: tenantID, Role: role, Username: username,
+		PasswordHash: string(hash), Nickname: nickname, Status: "offline",
+	}
+	if err := model.DB.Create(&user).Error; err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": "创建失败"})
+		return
+	}
+
+	model.DB.Create(&model.OperationLog{
+		OperatorID: middleware.GetUserID(c),
+		Action:     "create_staff",
+		Detail:     "创建坐席: " + username + " (" + role + ")",
+		TargetType: "user",
+		TargetID:   &user.ID,
+		IP:         c.ClientIP(),
+	})
+
+	middleware.JSON(c, StaffItem{
+		ID: user.ID, Username: user.Username, Nickname: user.Nickname,
+		Role: user.Role, Status: user.Status,
+		CreatedAt: user.CreatedAt.Format("2006-01-02 15:04:05"),
+	})
+}
+
+type UpdateStaffReq struct {
+	Nickname *string `json:"nickname"`
+	Role     *string `json:"role"`
+	Status   *string `json:"status"`
+	Password *string `json:"password"`
+}
+
+func (h *StaffHandler) Update(c *gin.Context) {
+	if !requireStaffManager(c) {
+		return
+	}
+	tenantID := middleware.GetTenantID(c)
+	id := c.Param("id")
+	var user model.User
+	if err := model.DB.Where("id = ? AND tenant_id = ?", id, tenantID).First(&user).Error; err != nil {
+		c.JSON(http.StatusNotFound, gin.H{"code": 404, "message": "账号不存在"})
+		return
+	}
+	if user.Role == "platform_admin" {
+		c.JSON(http.StatusForbidden, gin.H{"code": 403, "message": "无法操作该账号"})
+		return
+	}
+
+	var req UpdateStaffReq
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "参数错误"})
+		return
+	}
+
+	// 不可降级/删除最后一个 admin：若改角色离开 admin，检查剩余 admin
+	updates := map[string]interface{}{}
+	if req.Nickname != nil {
+		n := strings.TrimSpace(*req.Nickname)
+		if n == "" || utf8.RuneCountInString(n) > 50 {
+			c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "昵称无效"})
+			return
+		}
+		updates["nickname"] = n
+	}
+	if req.Role != nil {
+		r := *req.Role
+		if r != "agent" && r != "supervisor" && r != "admin" {
+			c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "角色无效"})
+			return
+		}
+		// 非当前登录用户不能随意把自己改没 admin：禁止把最后一个 admin 改成非 admin
+		if user.Role == "admin" && r != "admin" {
+			var adminCnt int64
+			model.DB.Model(&model.User{}).Where("tenant_id = ? AND role = ? AND status <> ?", tenantID, "admin", "disabled").Count(&adminCnt)
+			if adminCnt <= 1 {
+				c.JSON(http.StatusConflict, gin.H{"code": 409, "message": "至少保留一名启用的租户管理员"})
+				return
+			}
+		}
+		// 普通管理员不能创建/提升为 admin？允许 admin 设置另一 admin
+		updates["role"] = r
+	}
+	if req.Status != nil {
+		s := *req.Status
+		if s != "online" && s != "offline" && s != "busy" && s != "disabled" {
+			c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "状态无效"})
+			return
+		}
+		// 禁用时检查坐席释放；启用时检查配额
+		if s == "disabled" && user.Status != "disabled" {
+			if user.Role == "admin" {
+				var adminCnt int64
+				model.DB.Model(&model.User{}).Where("tenant_id = ? AND role = ? AND status <> ? AND id <> ?", tenantID, "admin", "disabled", user.ID).Count(&adminCnt)
+				if adminCnt < 1 {
+					c.JSON(http.StatusConflict, gin.H{"code": 409, "message": "不能禁用唯一的租户管理员"})
+					return
+				}
+			}
+			if user.ID == middleware.GetUserID(c) {
+				c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "不能禁用当前登录账号"})
+				return
+			}
+		}
+		if s != "disabled" && user.Status == "disabled" {
+			seatLimit, _ := loadTenantSeatLimit(tenantID)
+			used, _ := countActiveSeats(tenantID)
+			if used >= int64(seatLimit) {
+				c.JSON(http.StatusConflict, gin.H{"code": 409, "message": "坐席数已达上限，无法启用"})
+				return
+			}
+		}
+		updates["status"] = s
+	}
+	if req.Password != nil && *req.Password != "" {
+		if len(*req.Password) < 6 || len(*req.Password) > 64 {
+			c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "密码需 6-64 位"})
+			return
+		}
+		hash, err := bcrypt.GenerateFromPassword([]byte(*req.Password), bcrypt.DefaultCost)
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": "更新密码失败"})
+			return
+		}
+		updates["password_hash"] = string(hash)
+	}
+	if len(updates) == 0 {
+		c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "没有可更新字段"})
+		return
+	}
+
+	if err := model.DB.Model(&user).Updates(updates).Error; err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": "更新失败"})
+		return
+	}
+	model.DB.First(&user, user.ID)
+
+	model.DB.Create(&model.OperationLog{
+		OperatorID: middleware.GetUserID(c),
+		Action:     "update_staff",
+		Detail:     "更新坐席: " + user.Username,
+		TargetType: "user",
+		TargetID:   &user.ID,
+		IP:         c.ClientIP(),
+	})
+
+	item := StaffItem{
+		ID: user.ID, Username: user.Username, Nickname: user.Nickname,
+		Role: user.Role, Status: user.Status,
+		CreatedAt: user.CreatedAt.Format("2006-01-02 15:04:05"),
+	}
+	if user.LastOnlineAt != nil {
+		item.LastOnlineAt = user.LastOnlineAt.Format("2006-01-02 15:04:05")
+	}
+	middleware.JSON(c, item)
+}
+
+func (h *StaffHandler) Delete(c *gin.Context) {
+	if !requireStaffManager(c) {
+		return
+	}
+	tenantID := middleware.GetTenantID(c)
+	id := c.Param("id")
+	var user model.User
+	if err := model.DB.Where("id = ? AND tenant_id = ?", id, tenantID).First(&user).Error; err != nil {
+		c.JSON(http.StatusNotFound, gin.H{"code": 404, "message": "账号不存在"})
+		return
+	}
+	if user.ID == middleware.GetUserID(c) {
+		c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "不能删除当前登录账号"})
+		return
+	}
+	if user.Role == "admin" {
+		var adminCnt int64
+		model.DB.Model(&model.User{}).Where("tenant_id = ? AND role = ? AND status <> ?", tenantID, "admin", "disabled").Count(&adminCnt)
+		if adminCnt <= 1 && user.Status != "disabled" {
+			c.JSON(http.StatusConflict, gin.H{"code": 409, "message": "不能删除唯一的租户管理员"})
+			return
+		}
+	}
+
+	// 软禁用：保留数据关联；物理删除仅对无会话绑定的账号可选——统一用 disabled 更安全
+	if err := model.DB.Model(&user).Update("status", "disabled").Error; err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": "禁用失败"})
+		return
+	}
+
+	model.DB.Create(&model.OperationLog{
+		OperatorID: middleware.GetUserID(c),
+		Action:     "disable_staff",
+		Detail:     "禁用坐席: " + user.Username,
+		TargetType: "user",
+		TargetID:   &user.ID,
+		IP:         c.ClientIP(),
+	})
+	middleware.JSON(c, gin.H{"message": "已禁用"})
+}