355 lines
12 KiB
Go
355 lines
12 KiB
Go
package handler
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"strings"
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"time"
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"github.com/gin-gonic/gin"
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"kefu-cloud/server/internal/middleware"
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"kefu-cloud/server/internal/model"
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)
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type SettingsHandler struct{}
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func NewSettingsHandler() *SettingsHandler { return &SettingsHandler{} }
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const (
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defaultWelcomeMessage = "您好！欢迎咨询，请问有什么可以帮您？"
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defaultOfflinePrompt = "当前无客服在线，请留言并留下联系方式，我们上线后会尽快回复您。"
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defaultWorktimePrompt = "当前为非工作时间，我们会在工作时段尽快回复您。"
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defaultAgentNickname = "在线客服"
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defaultTimezone = "Asia/Shanghai"
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)
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var weekdayKeys = []string{"monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday"}
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func defaultWorkHoursJSON() string {
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// 默认全周全天可接待，租户可在设置中收紧为工作日时段
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hours := map[string]string{
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"monday": "全天", "tuesday": "全天", "wednesday": "全天",
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"thursday": "全天", "friday": "全天", "saturday": "全天", "sunday": "全天",
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}
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b, _ := json.Marshal(hours)
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return string(b)
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}
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func getOrCreateTenantSettings(tenantID uint) (*model.TenantSetting, error) {
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var setting model.TenantSetting
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err := model.DB.Where("tenant_id = ?", tenantID).First(&setting).Error
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if err == nil {
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return &setting, nil
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}
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var tenant model.Tenant
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_ = model.DB.First(&tenant, tenantID).Error
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displayName := tenant.Name
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if displayName == "" {
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displayName = "在线客服"
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}
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setting = model.TenantSetting{
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TenantID: tenantID,
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DisplayName: displayName,
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AgentNickname: defaultAgentNickname,
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Timezone: defaultTimezone,
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WelcomeMessage: defaultWelcomeMessage,
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OfflinePrompt: defaultOfflinePrompt,
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WorkHoursJSON: defaultWorkHoursJSON(),
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WorktimePrompt: defaultWorktimePrompt,
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NotifyNewSession: true,
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NotifyOfflineLeave: true,
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NotifyDailyReport: false,
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AssignStrategy: assignStrategyLeastLoad,
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MaxActivePerAgent: 0,
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}
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if err := model.DB.Create(&setting).Error; err != nil {
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return nil, err
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}
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return &setting, nil
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}
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func parseWorkHours(raw string) map[string]string {
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result := map[string]string{}
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if strings.TrimSpace(raw) == "" {
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_ = json.Unmarshal([]byte(defaultWorkHoursJSON()), &result)
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return result
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}
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if err := json.Unmarshal([]byte(raw), &result); err != nil {
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_ = json.Unmarshal([]byte(defaultWorkHoursJSON()), &result)
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}
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return result
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}
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// normalizeWorkHourSlot 规范化单日工作时间配置。
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// 允许：空/休息（→ 空）、全天、HH:MM-HH:MM（支持跨午夜，如 22:00-06:00）。
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func normalizeWorkHourSlot(val string) (string, error) {
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val = strings.TrimSpace(val)
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if val == "" || val == "休息" {
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return "", nil
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}
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if val == "全天" {
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return "全天", nil
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}
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// 仅允许一个区间：HH:MM-HH:MM
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parts := strings.Split(val, "-")
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if len(parts) != 2 {
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return "", fmt.Errorf("工作时间格式无效，请使用 09:00-18:00 / 全天 / 空")
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}
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startS := strings.TrimSpace(parts[0])
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endS := strings.TrimSpace(parts[1])
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start, err1 := time.Parse("15:04", startS)
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end, err2 := time.Parse("15:04", endS)
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if err1 != nil || err2 != nil {
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return "", fmt.Errorf("工作时间格式无效，请使用 09:00-18:00（24 小时制）")
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}
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return start.Format("15:04") + "-" + end.Format("15:04"), nil
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}
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// slotCoversLocal 判断 slot（全天 / HH:MM-HH:MM）是否覆盖 local 时刻。
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func slotCoversLocal(slot string, local time.Time, loc *time.Location) bool {
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slot = strings.TrimSpace(slot)
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if slot == "" || slot == "休息" {
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return false
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}
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if slot == "全天" {
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return true
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}
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parts := strings.Split(slot, "-")
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if len(parts) != 2 {
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// 非法配置 fail-open，避免因脏数据整站拒接
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return true
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}
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start, err1 := time.ParseInLocation("15:04", strings.TrimSpace(parts[0]), loc)
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end, err2 := time.ParseInLocation("15:04", strings.TrimSpace(parts[1]), loc)
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if err1 != nil || err2 != nil {
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return true
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}
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startAt := time.Date(local.Year(), local.Month(), local.Day(), start.Hour(), start.Minute(), 0, 0, loc)
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endAt := time.Date(local.Year(), local.Month(), local.Day(), end.Hour(), end.Minute(), 0, 0, loc)
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if !endAt.After(startAt) {
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// 跨午夜：当前 >= start 或 < end
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return !local.Before(startAt) || local.Before(endAt)
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}
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return !local.Before(startAt) && local.Before(endAt)
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}
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// isWithinWorkHours 根据租户工作时间配置判断当前是否在工作时段。
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// 未配置或某日为空视为休息；时段格式 HH:MM-HH:MM（可跨午夜）。
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func isWithinWorkHours(setting *model.TenantSetting, now time.Time) bool {
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if setting == nil {
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return true
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}
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loc, err := time.LoadLocation(setting.Timezone)
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if err != nil || setting.Timezone == "" {
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loc, _ = time.LoadLocation(defaultTimezone)
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}
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local := now.In(loc)
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hours := parseWorkHours(setting.WorkHoursJSON)
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var key string
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switch local.Weekday() {
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case time.Monday:
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key = "monday"
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case time.Tuesday:
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key = "tuesday"
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case time.Wednesday:
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key = "wednesday"
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case time.Thursday:
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key = "thursday"
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case time.Friday:
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key = "friday"
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case time.Saturday:
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key = "saturday"
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default:
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key = "sunday"
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}
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return slotCoversLocal(hours[key], local, loc)
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}
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func settingsResponse(setting *model.TenantSetting) gin.H {
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strategy := normalizeAssignStrategy(setting.AssignStrategy)
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maxActive := setting.MaxActivePerAgent
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if maxActive < 0 {
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maxActive = 0
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}
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return gin.H{
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"tenant_id": setting.TenantID,
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"display_name": setting.DisplayName,
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"agent_nickname": setting.AgentNickname,
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"timezone": setting.Timezone,
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"welcome_message": setting.WelcomeMessage,
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"offline_prompt": setting.OfflinePrompt,
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"work_hours": parseWorkHours(setting.WorkHoursJSON),
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"worktime_prompt": setting.WorktimePrompt,
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"notify_new_session": setting.NotifyNewSession,
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"notify_offline_leave": setting.NotifyOfflineLeave,
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"notify_daily_report": setting.NotifyDailyReport,
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"assign_strategy": strategy,
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"max_active_per_agent": maxActive,
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}
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}
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func (h *SettingsHandler) Get(c *gin.Context) {
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tenantID := middleware.GetTenantID(c)
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if tenantID == 0 {
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c.JSON(http.StatusForbidden, gin.H{"code": 403, "message": "仅租户账号可查看设置"})
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return
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}
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setting, err := getOrCreateTenantSettings(tenantID)
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": "加载设置失败"})
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return
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}
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middleware.JSON(c, settingsResponse(setting))
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}
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type updateSettingsReq struct {
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DisplayName *string `json:"display_name"`
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AgentNickname *string `json:"agent_nickname"`
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Timezone *string `json:"timezone"`
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WelcomeMessage *string `json:"welcome_message"`
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OfflinePrompt *string `json:"offline_prompt"`
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WorkHours map[string]string `json:"work_hours"`
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WorktimePrompt *string `json:"worktime_prompt"`
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NotifyNewSession *bool `json:"notify_new_session"`
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NotifyOfflineLeave *bool `json:"notify_offline_leave"`
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NotifyDailyReport *bool `json:"notify_daily_report"`
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AssignStrategy *string `json:"assign_strategy"`
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MaxActivePerAgent *int `json:"max_active_per_agent"`
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}
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func (h *SettingsHandler) Update(c *gin.Context) {
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if !middleware.HasAnyRole(c, "admin") {
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c.JSON(http.StatusForbidden, gin.H{"code": 403, "message": "仅租户管理员可修改设置"})
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return
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}
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tenantID := middleware.GetTenantID(c)
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if tenantID == 0 {
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c.JSON(http.StatusForbidden, gin.H{"code": 403, "message": "仅租户账号可修改设置"})
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return
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}
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setting, err := getOrCreateTenantSettings(tenantID)
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": "加载设置失败"})
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return
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}
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var req updateSettingsReq
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if err := c.ShouldBindJSON(&req); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "参数错误"})
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return
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}
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updates := map[string]interface{}{}
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if req.DisplayName != nil {
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name := strings.TrimSpace(*req.DisplayName)
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if name == "" || len([]rune(name)) > 100 {
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c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "租户显示名称无效"})
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return
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}
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updates["display_name"] = name
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// 同步更新租户主表名称（唯一约束下若冲突则仅更新 setting）
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var conflict int64
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model.DB.Model(&model.Tenant{}).Where("name = ? AND id <> ?", name, tenantID).Count(&conflict)
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if conflict == 0 {
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model.DB.Model(&model.Tenant{}).Where("id = ?", tenantID).Update("name", name)
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}
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}
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if req.AgentNickname != nil {
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nick := strings.TrimSpace(*req.AgentNickname)
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if len([]rune(nick)) > 50 {
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c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "客服昵称过长"})
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return
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}
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updates["agent_nickname"] = nick
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}
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if req.Timezone != nil {
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tz := strings.TrimSpace(*req.Timezone)
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if tz == "" {
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tz = defaultTimezone
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}
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if _, err := time.LoadLocation(tz); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "时区无效"})
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return
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}
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updates["timezone"] = tz
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}
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if req.WelcomeMessage != nil {
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msg := strings.TrimSpace(*req.WelcomeMessage)
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if len([]rune(msg)) > 500 {
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c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "欢迎语不能超过 500 字"})
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return
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}
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updates["welcome_message"] = msg
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}
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if req.OfflinePrompt != nil {
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msg := strings.TrimSpace(*req.OfflinePrompt)
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if len([]rune(msg)) > 500 {
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c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "离线提示不能超过 500 字"})
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return
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}
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updates["offline_prompt"] = msg
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}
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if req.WorktimePrompt != nil {
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msg := strings.TrimSpace(*req.WorktimePrompt)
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if len([]rune(msg)) > 500 {
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c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "非工作时间提示不能超过 500 字"})
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return
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}
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updates["worktime_prompt"] = msg
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}
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if req.WorkHours != nil {
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normalized := map[string]string{}
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for _, key := range weekdayKeys {
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slot, err := normalizeWorkHourSlot(req.WorkHours[key])
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": err.Error()})
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return
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}
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normalized[key] = slot
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}
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b, err := json.Marshal(normalized)
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if err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "工作时间序列化失败"})
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return
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}
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updates["work_hours_json"] = string(b)
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}
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if req.NotifyNewSession != nil {
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updates["notify_new_session"] = *req.NotifyNewSession
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}
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if req.NotifyOfflineLeave != nil {
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updates["notify_offline_leave"] = *req.NotifyOfflineLeave
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}
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if req.NotifyDailyReport != nil {
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updates["notify_daily_report"] = *req.NotifyDailyReport
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}
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if req.AssignStrategy != nil {
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raw := strings.TrimSpace(*req.AssignStrategy)
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if raw != assignStrategyLeastLoad && raw != assignStrategyRoundRobin {
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c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "分配策略无效，可选 least_load / round_robin"})
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return
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}
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updates["assign_strategy"] = raw
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}
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if req.MaxActivePerAgent != nil {
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if *req.MaxActivePerAgent < 0 || *req.MaxActivePerAgent > 200 {
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c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "最大并发需为 0–200（0 表示不限制）"})
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return
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}
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updates["max_active_per_agent"] = *req.MaxActivePerAgent
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}
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if len(updates) == 0 {
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c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "没有可更新字段"})
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return
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}
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if err := model.DB.Model(setting).Updates(updates).Error; err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": "保存失败"})
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return
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}
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_ = model.DB.Where("tenant_id = ?", tenantID).First(setting).Error
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middleware.JSON(c, settingsResponse(setting))
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}
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