351 lines
9.7 KiB
Go
351 lines
9.7 KiB
Go
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package handler
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import (
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"encoding/json"
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"net/http"
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"strconv"
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"strings"
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"lijiaoqiao/supply-api/internal/audit/model"
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"lijiaoqiao/supply-api/internal/audit/service"
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)
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// AlertHandler 告警HTTP处理器
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type AlertHandler struct {
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svc *service.AlertService
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}
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// NewAlertHandler 创建告警处理器
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func NewAlertHandler(svc *service.AlertService) *AlertHandler {
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return &AlertHandler{svc: svc}
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}
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// CreateAlertRequest 创建告警请求
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type CreateAlertRequest struct {
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AlertName string `json:"alert_name"`
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AlertType string `json:"alert_type"`
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AlertLevel string `json:"alert_level"`
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TenantID int64 `json:"tenant_id"`
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SupplierID int64 `json:"supplier_id,omitempty"`
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Title string `json:"title"`
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Message string `json:"message"`
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Description string `json:"description,omitempty"`
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EventID string `json:"event_id,omitempty"`
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EventIDs []string `json:"event_ids,omitempty"`
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NotifyEnabled bool `json:"notify_enabled"`
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Tags []string `json:"tags,omitempty"`
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}
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// UpdateAlertRequest 更新告警请求
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type UpdateAlertRequest struct {
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Title string `json:"title,omitempty"`
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Message string `json:"message,omitempty"`
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Description string `json:"description,omitempty"`
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AlertLevel string `json:"alert_level,omitempty"`
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Status string `json:"status,omitempty"`
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NotifyEnabled *bool `json:"notify_enabled,omitempty"`
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NotifyChannels []string `json:"notify_channels,omitempty"`
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Tags []string `json:"tags,omitempty"`
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Metadata map[string]any `json:"metadata,omitempty"`
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}
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// ResolveAlertRequest 解决告警请求
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type ResolveAlertRequest struct {
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ResolvedBy string `json:"resolved_by"`
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Note string `json:"note"`
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}
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// AlertResponse 告警响应
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type AlertResponse struct {
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Alert *model.Alert `json:"alert"`
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}
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// AlertListResponse 告警列表响应
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type AlertListResponse struct {
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Alerts []*model.Alert `json:"alerts"`
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Total int64 `json:"total"`
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Offset int `json:"offset"`
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Limit int `json:"limit"`
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}
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// CreateAlert 处理 POST /api/v1/audit/alerts
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func (h *AlertHandler) CreateAlert(w http.ResponseWriter, r *http.Request) {
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var req CreateAlertRequest
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if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
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writeAlertError(w, http.StatusBadRequest, "INVALID_REQUEST", "invalid request body: "+err.Error())
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return
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}
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// 验证必填字段
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if req.Title == "" {
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writeAlertError(w, http.StatusBadRequest, "MISSING_FIELD", "title is required")
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return
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}
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if req.AlertType == "" {
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writeAlertError(w, http.StatusBadRequest, "MISSING_FIELD", "alert_type is required")
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return
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}
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// 创建告警
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alert := &model.Alert{
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AlertName: req.AlertName,
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AlertType: req.AlertType,
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AlertLevel: req.AlertLevel,
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TenantID: req.TenantID,
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SupplierID: req.SupplierID,
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Title: req.Title,
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Message: req.Message,
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Description: req.Description,
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EventID: req.EventID,
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EventIDs: req.EventIDs,
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NotifyEnabled: req.NotifyEnabled,
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Tags: req.Tags,
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}
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result, err := h.svc.CreateAlert(r.Context(), alert)
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if err != nil {
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writeAlertError(w, http.StatusInternalServerError, "CREATE_FAILED", err.Error())
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return
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}
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(http.StatusCreated)
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json.NewEncoder(w).Encode(AlertResponse{Alert: result})
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}
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// GetAlert 处理 GET /api/v1/audit/alerts/{alert_id}
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func (h *AlertHandler) GetAlert(w http.ResponseWriter, r *http.Request) {
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alertID := extractAlertID(r)
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if alertID == "" {
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writeAlertError(w, http.StatusBadRequest, "MISSING_PARAM", "alert_id is required")
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return
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}
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alert, err := h.svc.GetAlert(r.Context(), alertID)
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if err != nil {
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if err == service.ErrAlertNotFound {
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writeAlertError(w, http.StatusNotFound, "NOT_FOUND", "alert not found")
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return
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}
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writeAlertError(w, http.StatusInternalServerError, "GET_FAILED", err.Error())
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return
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}
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w.Header().Set("Content-Type", "application/json")
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json.NewEncoder(w).Encode(AlertResponse{Alert: alert})
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}
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// ListAlerts 处理 GET /api/v1/audit/alerts
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func (h *AlertHandler) ListAlerts(w http.ResponseWriter, r *http.Request) {
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filter := &model.AlertFilter{}
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// 解析查询参数
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if tenantIDStr := r.URL.Query().Get("tenant_id"); tenantIDStr != "" {
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tenantID, err := strconv.ParseInt(tenantIDStr, 10, 64)
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if err == nil {
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filter.TenantID = tenantID
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}
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}
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if supplierIDStr := r.URL.Query().Get("supplier_id"); supplierIDStr != "" {
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supplierID, err := strconv.ParseInt(supplierIDStr, 10, 64)
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if err == nil {
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filter.SupplierID = supplierID
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}
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}
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if alertType := r.URL.Query().Get("alert_type"); alertType != "" {
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filter.AlertType = alertType
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}
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if alertLevel := r.URL.Query().Get("alert_level"); alertLevel != "" {
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filter.AlertLevel = alertLevel
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}
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if status := r.URL.Query().Get("status"); status != "" {
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filter.Status = status
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}
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if keywords := r.URL.Query().Get("keywords"); keywords != "" {
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filter.Keywords = keywords
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}
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if offsetStr := r.URL.Query().Get("offset"); offsetStr != "" {
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offset, err := strconv.Atoi(offsetStr)
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if err == nil && offset >= 0 {
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filter.Offset = offset
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}
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}
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if limitStr := r.URL.Query().Get("limit"); limitStr != "" {
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limit, err := strconv.Atoi(limitStr)
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if err == nil && limit > 0 && limit <= 1000 {
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filter.Limit = limit
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}
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}
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if filter.Limit == 0 {
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filter.Limit = 100
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}
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alerts, total, err := h.svc.ListAlerts(r.Context(), filter)
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if err != nil {
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writeAlertError(w, http.StatusInternalServerError, "LIST_FAILED", err.Error())
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return
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}
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w.Header().Set("Content-Type", "application/json")
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json.NewEncoder(w).Encode(AlertListResponse{
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Alerts: alerts,
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Total: total,
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Offset: filter.Offset,
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Limit: filter.Limit,
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})
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}
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// UpdateAlert 处理 PUT /api/v1/audit/alerts/{alert_id}
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func (h *AlertHandler) UpdateAlert(w http.ResponseWriter, r *http.Request) {
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alertID := extractAlertID(r)
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if alertID == "" {
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writeAlertError(w, http.StatusBadRequest, "MISSING_PARAM", "alert_id is required")
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return
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}
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// 获取现有告警
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alert, err := h.svc.GetAlert(r.Context(), alertID)
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if err != nil {
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if err == service.ErrAlertNotFound {
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writeAlertError(w, http.StatusNotFound, "NOT_FOUND", "alert not found")
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return
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}
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writeAlertError(w, http.StatusInternalServerError, "GET_FAILED", err.Error())
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return
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}
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var req UpdateAlertRequest
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if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
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writeAlertError(w, http.StatusBadRequest, "INVALID_REQUEST", "invalid request body: "+err.Error())
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return
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}
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// 更新字段
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if req.Title != "" {
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alert.Title = req.Title
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}
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if req.Message != "" {
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alert.Message = req.Message
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}
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if req.Description != "" {
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alert.Description = req.Description
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}
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if req.AlertLevel != "" {
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alert.AlertLevel = req.AlertLevel
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}
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if req.Status != "" {
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alert.Status = req.Status
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}
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if req.NotifyEnabled != nil {
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alert.NotifyEnabled = *req.NotifyEnabled
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}
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if len(req.NotifyChannels) > 0 {
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alert.NotifyChannels = req.NotifyChannels
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}
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if len(req.Tags) > 0 {
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alert.Tags = req.Tags
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}
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if req.Metadata != nil {
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alert.Metadata = req.Metadata
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}
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result, err := h.svc.UpdateAlert(r.Context(), alert)
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if err != nil {
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writeAlertError(w, http.StatusInternalServerError, "UPDATE_FAILED", err.Error())
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return
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}
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w.Header().Set("Content-Type", "application/json")
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json.NewEncoder(w).Encode(AlertResponse{Alert: result})
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}
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// DeleteAlert 处理 DELETE /api/v1/audit/alerts/{alert_id}
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func (h *AlertHandler) DeleteAlert(w http.ResponseWriter, r *http.Request) {
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alertID := extractAlertID(r)
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if alertID == "" {
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writeAlertError(w, http.StatusBadRequest, "MISSING_PARAM", "alert_id is required")
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return
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}
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err := h.svc.DeleteAlert(r.Context(), alertID)
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if err != nil {
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if err == service.ErrAlertNotFound {
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writeAlertError(w, http.StatusNotFound, "NOT_FOUND", "alert not found")
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return
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}
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writeAlertError(w, http.StatusInternalServerError, "DELETE_FAILED", err.Error())
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return
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}
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w.WriteHeader(http.StatusNoContent)
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}
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// ResolveAlert 处理 POST /api/v1/audit/alerts/{alert_id}/resolve
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func (h *AlertHandler) ResolveAlert(w http.ResponseWriter, r *http.Request) {
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alertID := extractAlertID(r)
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if alertID == "" {
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writeAlertError(w, http.StatusBadRequest, "MISSING_PARAM", "alert_id is required")
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return
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}
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var req ResolveAlertRequest
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if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
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writeAlertError(w, http.StatusBadRequest, "INVALID_REQUEST", "invalid request body: "+err.Error())
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return
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}
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if req.ResolvedBy == "" {
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writeAlertError(w, http.StatusBadRequest, "MISSING_FIELD", "resolved_by is required")
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return
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}
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result, err := h.svc.ResolveAlert(r.Context(), alertID, req.ResolvedBy, req.Note)
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if err != nil {
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if err == service.ErrAlertNotFound {
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writeAlertError(w, http.StatusNotFound, "NOT_FOUND", "alert not found")
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return
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}
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writeAlertError(w, http.StatusInternalServerError, "RESOLVE_FAILED", err.Error())
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return
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}
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w.Header().Set("Content-Type", "application/json")
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json.NewEncoder(w).Encode(AlertResponse{Alert: result})
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}
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// extractAlertID 从请求中提取alert_id（优先从路径，其次从查询参数）
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func extractAlertID(r *http.Request) string {
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// 先尝试从路径提取
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path := r.URL.Path
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parts := strings.Split(strings.TrimPrefix(path, "/"), "/")
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if len(parts) >= 5 && parts[0] == "api" && parts[1] == "v1" && parts[2] == "audit" && parts[3] == "alerts" {
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if parts[4] != "" && parts[4] != "resolve" {
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return parts[4]
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}
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}
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// 再尝试从查询参数提取
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if alertID := r.URL.Query().Get("alert_id"); alertID != "" {
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return alertID
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}
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return ""
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}
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// writeAlertError 写入错误响应
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func writeAlertError(w http.ResponseWriter, status int, code, message string) {
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(status)
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json.NewEncoder(w).Encode(ErrorResponse{
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Error: message,
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Code: code,
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Details: "",
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})
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}
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