mirror of
https://github.com/EZ-Api/ez-api.git
synced 2026-01-13 17:47:51 +00:00
ba54abd424
Introduce traffic_spike alert type for monitoring system and per-master traffic levels with configurable thresholds stored in database. - Add AlertThresholdConfig model for persistent threshold configuration - Implement GET/PUT /admin/alerts/thresholds endpoints for threshold management - Add traffic spike detection in alert detector cron job: - Global QPS monitoring across all masters - Per-master RPM/TPM checks with minimum sample thresholds - Per-master RPD/TPD checks for daily limits - Use warning severity at threshold, critical at 2x threshold - Include metric metadata (value, threshold, window) in alert details - Update API documentation with new endpoints and alert type
564 lines
17 KiB
Go
564 lines
17 KiB
Go
package api
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import (
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"net/http"
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"strings"
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"time"
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"github.com/ez-api/ez-api/internal/model"
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"github.com/gin-gonic/gin"
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"gorm.io/gorm"
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)
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// AlertHandler handles alert-related API endpoints
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type AlertHandler struct {
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db *gorm.DB
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}
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// NewAlertHandler creates a new AlertHandler
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func NewAlertHandler(db *gorm.DB) *AlertHandler {
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return &AlertHandler{db: db}
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}
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// AlertView represents an alert in API responses
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type AlertView struct {
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ID uint `json:"id"`
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Type string `json:"type"`
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Severity string `json:"severity"`
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Status string `json:"status"`
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Title string `json:"title"`
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Message string `json:"message"`
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RelatedID uint `json:"related_id,omitempty"`
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RelatedType string `json:"related_type,omitempty"`
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RelatedName string `json:"related_name,omitempty"`
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Metadata string `json:"metadata,omitempty"`
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AckedAt *int64 `json:"acked_at,omitempty"`
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AckedBy string `json:"acked_by,omitempty"`
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ResolvedAt *int64 `json:"resolved_at,omitempty"`
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ExpiresAt *int64 `json:"expires_at,omitempty"`
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CreatedAt int64 `json:"created_at"`
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UpdatedAt int64 `json:"updated_at"`
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}
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func toAlertView(a model.Alert) AlertView {
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view := AlertView{
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ID: a.ID,
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Type: string(a.Type),
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Severity: string(a.Severity),
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Status: string(a.Status),
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Title: a.Title,
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Message: a.Message,
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RelatedID: a.RelatedID,
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RelatedType: a.RelatedType,
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RelatedName: a.RelatedName,
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Metadata: a.Metadata,
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AckedBy: a.AckedBy,
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CreatedAt: a.CreatedAt.UTC().Unix(),
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UpdatedAt: a.UpdatedAt.UTC().Unix(),
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}
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if a.AckedAt != nil {
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ts := a.AckedAt.UTC().Unix()
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view.AckedAt = &ts
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}
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if a.ResolvedAt != nil {
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ts := a.ResolvedAt.UTC().Unix()
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view.ResolvedAt = &ts
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}
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if a.ExpiresAt != nil {
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ts := a.ExpiresAt.UTC().Unix()
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view.ExpiresAt = &ts
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}
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return view
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}
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// ListAlertsResponse is the response for listing alerts
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type ListAlertsResponse struct {
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Total int64 `json:"total"`
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Limit int `json:"limit"`
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Offset int `json:"offset"`
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Items []AlertView `json:"items"`
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}
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// ListAlerts godoc
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// @Summary List alerts
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// @Description List system alerts with optional filters
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// @Tags admin
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// @Produce json
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// @Security AdminAuth
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// @Param limit query int false "limit (default 50, max 200)"
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// @Param offset query int false "offset"
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// @Param status query string false "filter by status (active, acknowledged, resolved, dismissed)"
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// @Param severity query string false "filter by severity (info, warning, critical)"
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// @Param type query string false "filter by type (rate_limit, error_spike, quota_exceeded, key_disabled, key_expired, provider_down)"
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// @Success 200 {object} ListAlertsResponse
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// @Failure 500 {object} gin.H
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// @Router /admin/alerts [get]
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func (h *AlertHandler) ListAlerts(c *gin.Context) {
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limit, offset := parseLimitOffset(c)
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q := h.db.Model(&model.Alert{}).Order("id desc")
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if status := strings.TrimSpace(c.Query("status")); status != "" {
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q = q.Where("status = ?", status)
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}
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if severity := strings.TrimSpace(c.Query("severity")); severity != "" {
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q = q.Where("severity = ?", severity)
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}
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if alertType := strings.TrimSpace(c.Query("type")); alertType != "" {
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q = q.Where("type = ?", alertType)
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}
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var total int64
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if err := q.Count(&total).Error; err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to count alerts", "details": err.Error()})
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return
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}
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var alerts []model.Alert
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if err := q.Limit(limit).Offset(offset).Find(&alerts).Error; err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to list alerts", "details": err.Error()})
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return
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}
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items := make([]AlertView, 0, len(alerts))
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for _, a := range alerts {
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items = append(items, toAlertView(a))
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}
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c.JSON(http.StatusOK, ListAlertsResponse{
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Total: total,
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Limit: limit,
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Offset: offset,
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Items: items,
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})
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}
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// GetAlert godoc
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// @Summary Get alert
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// @Description Get a single alert by ID
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// @Tags admin
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// @Produce json
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// @Security AdminAuth
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// @Param id path int true "Alert ID"
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// @Success 200 {object} AlertView
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// @Failure 400 {object} gin.H
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// @Failure 404 {object} gin.H
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// @Router /admin/alerts/{id} [get]
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func (h *AlertHandler) GetAlert(c *gin.Context) {
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id, ok := parseUintParam(c, "id")
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if !ok {
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return
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}
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var alert model.Alert
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if err := h.db.First(&alert, id).Error; err != nil {
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c.JSON(http.StatusNotFound, gin.H{"error": "alert not found"})
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return
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}
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c.JSON(http.StatusOK, toAlertView(alert))
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}
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// CreateAlertRequest is the request body for creating an alert
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type CreateAlertRequest struct {
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Type string `json:"type" binding:"required"`
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Severity string `json:"severity" binding:"required"`
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Title string `json:"title" binding:"required"`
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Message string `json:"message"`
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RelatedID uint `json:"related_id"`
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RelatedType string `json:"related_type"`
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RelatedName string `json:"related_name"`
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Metadata string `json:"metadata"`
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ExpiresAt *int64 `json:"expires_at"`
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}
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// CreateAlert godoc
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// @Summary Create alert
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// @Description Create a new system alert
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// @Tags admin
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// @Accept json
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// @Produce json
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// @Security AdminAuth
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// @Param request body CreateAlertRequest true "Alert data"
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// @Success 201 {object} AlertView
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// @Failure 400 {object} gin.H
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// @Failure 500 {object} gin.H
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// @Router /admin/alerts [post]
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func (h *AlertHandler) CreateAlert(c *gin.Context) {
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var req CreateAlertRequest
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if err := c.ShouldBindJSON(&req); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
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return
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}
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// Validate type
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validTypes := map[string]bool{
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"rate_limit": true, "error_spike": true, "quota_exceeded": true,
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"key_disabled": true, "key_expired": true, "provider_down": true, "traffic_spike": true,
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}
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if !validTypes[req.Type] {
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c.JSON(http.StatusBadRequest, gin.H{"error": "invalid alert type"})
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return
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}
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// Validate severity
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validSeverities := map[string]bool{"info": true, "warning": true, "critical": true}
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if !validSeverities[req.Severity] {
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c.JSON(http.StatusBadRequest, gin.H{"error": "invalid severity"})
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return
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}
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alert := model.Alert{
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Type: model.AlertType(req.Type),
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Severity: model.AlertSeverity(req.Severity),
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Status: model.AlertStatusActive,
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Title: strings.TrimSpace(req.Title),
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Message: strings.TrimSpace(req.Message),
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RelatedID: req.RelatedID,
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RelatedType: strings.TrimSpace(req.RelatedType),
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RelatedName: strings.TrimSpace(req.RelatedName),
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Metadata: req.Metadata,
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}
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if req.ExpiresAt != nil && *req.ExpiresAt > 0 {
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t := time.Unix(*req.ExpiresAt, 0).UTC()
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alert.ExpiresAt = &t
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}
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if err := h.db.Create(&alert).Error; err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to create alert", "details": err.Error()})
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return
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}
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c.JSON(http.StatusCreated, toAlertView(alert))
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}
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// AckAlertRequest is the request body for acknowledging an alert
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type AckAlertRequest struct {
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AckedBy string `json:"acked_by"`
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}
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// AcknowledgeAlert godoc
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// @Summary Acknowledge alert
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// @Description Mark an alert as acknowledged
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// @Tags admin
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// @Accept json
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// @Produce json
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// @Security AdminAuth
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// @Param id path int true "Alert ID"
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// @Param request body AckAlertRequest false "Ack data"
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// @Success 200 {object} AlertView
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// @Failure 400 {object} gin.H
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// @Failure 404 {object} gin.H
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// @Failure 500 {object} gin.H
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// @Router /admin/alerts/{id}/ack [post]
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func (h *AlertHandler) AcknowledgeAlert(c *gin.Context) {
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id, ok := parseUintParam(c, "id")
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if !ok {
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return
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}
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var alert model.Alert
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if err := h.db.First(&alert, id).Error; err != nil {
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c.JSON(http.StatusNotFound, gin.H{"error": "alert not found"})
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return
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}
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var req AckAlertRequest
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_ = c.ShouldBindJSON(&req)
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now := time.Now().UTC()
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update := map[string]any{
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"status": model.AlertStatusAcknowledged,
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"acked_at": now,
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"acked_by": strings.TrimSpace(req.AckedBy),
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}
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if err := h.db.Model(&alert).Updates(update).Error; err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to acknowledge alert", "details": err.Error()})
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return
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}
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if err := h.db.First(&alert, id).Error; err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to reload alert", "details": err.Error()})
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return
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}
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c.JSON(http.StatusOK, toAlertView(alert))
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}
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// ResolveAlert godoc
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// @Summary Resolve alert
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// @Description Mark an alert as resolved
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// @Tags admin
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// @Produce json
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// @Security AdminAuth
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// @Param id path int true "Alert ID"
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// @Success 200 {object} AlertView
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// @Failure 400 {object} gin.H
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// @Failure 404 {object} gin.H
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// @Failure 500 {object} gin.H
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// @Router /admin/alerts/{id}/resolve [post]
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func (h *AlertHandler) ResolveAlert(c *gin.Context) {
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id, ok := parseUintParam(c, "id")
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if !ok {
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return
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}
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var alert model.Alert
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if err := h.db.First(&alert, id).Error; err != nil {
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c.JSON(http.StatusNotFound, gin.H{"error": "alert not found"})
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return
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}
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now := time.Now().UTC()
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update := map[string]any{
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"status": model.AlertStatusResolved,
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"resolved_at": now,
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}
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if err := h.db.Model(&alert).Updates(update).Error; err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to resolve alert", "details": err.Error()})
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return
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}
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if err := h.db.First(&alert, id).Error; err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to reload alert", "details": err.Error()})
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return
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}
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c.JSON(http.StatusOK, toAlertView(alert))
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}
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// DismissAlert godoc
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// @Summary Dismiss alert
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// @Description Dismiss an alert (soft delete)
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// @Tags admin
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// @Produce json
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// @Security AdminAuth
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// @Param id path int true "Alert ID"
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// @Success 200 {object} gin.H
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// @Failure 400 {object} gin.H
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// @Failure 404 {object} gin.H
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// @Failure 500 {object} gin.H
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// @Router /admin/alerts/{id} [delete]
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func (h *AlertHandler) DismissAlert(c *gin.Context) {
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id, ok := parseUintParam(c, "id")
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if !ok {
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return
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}
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var alert model.Alert
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if err := h.db.First(&alert, id).Error; err != nil {
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c.JSON(http.StatusNotFound, gin.H{"error": "alert not found"})
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return
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}
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if err := h.db.Model(&alert).Update("status", model.AlertStatusDismissed).Error; err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to dismiss alert", "details": err.Error()})
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return
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}
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c.JSON(http.StatusOK, gin.H{"status": "dismissed"})
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}
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// AlertStats represents alert statistics
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type AlertStats struct {
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Total int64 `json:"total"`
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Active int64 `json:"active"`
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Acknowledged int64 `json:"acknowledged"`
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Resolved int64 `json:"resolved"`
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Critical int64 `json:"critical"`
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Warning int64 `json:"warning"`
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Info int64 `json:"info"`
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}
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// GetAlertStats godoc
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// @Summary Alert statistics
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// @Description Get alert count statistics by status and severity
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// @Tags admin
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// @Produce json
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// @Security AdminAuth
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// @Success 200 {object} AlertStats
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// @Failure 500 {object} gin.H
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// @Router /admin/alerts/stats [get]
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func (h *AlertHandler) GetAlertStats(c *gin.Context) {
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var total, active, acknowledged, resolved, critical, warning, info int64
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h.db.Model(&model.Alert{}).Count(&total)
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h.db.Model(&model.Alert{}).Where("status = ?", "active").Count(&active)
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h.db.Model(&model.Alert{}).Where("status = ?", "acknowledged").Count(&acknowledged)
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h.db.Model(&model.Alert{}).Where("status = ?", "resolved").Count(&resolved)
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h.db.Model(&model.Alert{}).Where("severity = ? AND status = ?", "critical", "active").Count(&critical)
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h.db.Model(&model.Alert{}).Where("severity = ? AND status = ?", "warning", "active").Count(&warning)
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h.db.Model(&model.Alert{}).Where("severity = ? AND status = ?", "info", "active").Count(&info)
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c.JSON(http.StatusOK, AlertStats{
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Total: total,
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Active: active,
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Acknowledged: acknowledged,
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Resolved: resolved,
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Critical: critical,
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Warning: warning,
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Info: info,
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})
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}
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// AlertThresholdView represents threshold configuration in API responses
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type AlertThresholdView struct {
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GlobalQPS int64 `json:"global_qps"`
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MasterRPM int64 `json:"master_rpm"`
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MasterRPD int64 `json:"master_rpd"`
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MasterTPM int64 `json:"master_tpm"`
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MasterTPD int64 `json:"master_tpd"`
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MinRPMRequests1m int64 `json:"min_rpm_requests_1m"`
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MinTPMTokens1m int64 `json:"min_tpm_tokens_1m"`
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UpdatedAt int64 `json:"updated_at"`
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}
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func toAlertThresholdView(cfg model.AlertThresholdConfig) AlertThresholdView {
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return AlertThresholdView{
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GlobalQPS: cfg.GlobalQPS,
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MasterRPM: cfg.MasterRPM,
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MasterRPD: cfg.MasterRPD,
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MasterTPM: cfg.MasterTPM,
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MasterTPD: cfg.MasterTPD,
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MinRPMRequests1m: cfg.MinRPMRequests1m,
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MinTPMTokens1m: cfg.MinTPMTokens1m,
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UpdatedAt: cfg.UpdatedAt.UTC().Unix(),
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}
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}
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// GetAlertThresholds godoc
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// @Summary Get alert thresholds
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// @Description Get current alert threshold configuration for traffic spike detection
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// @Tags admin
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// @Produce json
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// @Security AdminAuth
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// @Success 200 {object} AlertThresholdView
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// @Failure 500 {object} gin.H
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// @Router /admin/alerts/thresholds [get]
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func (h *AlertHandler) GetAlertThresholds(c *gin.Context) {
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cfg, err := h.loadThresholdConfig()
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if err != nil {
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c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to load thresholds", "details": err.Error()})
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return
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}
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c.JSON(http.StatusOK, toAlertThresholdView(cfg))
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}
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// UpdateAlertThresholdsRequest is the request body for updating thresholds
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type UpdateAlertThresholdsRequest struct {
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GlobalQPS *int64 `json:"global_qps"`
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MasterRPM *int64 `json:"master_rpm"`
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MasterRPD *int64 `json:"master_rpd"`
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MasterTPM *int64 `json:"master_tpm"`
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MasterTPD *int64 `json:"master_tpd"`
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MinRPMRequests1m *int64 `json:"min_rpm_requests_1m"`
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MinTPMTokens1m *int64 `json:"min_tpm_tokens_1m"`
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}
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// UpdateAlertThresholds godoc
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// @Summary Update alert thresholds
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// @Description Update alert threshold configuration for traffic spike detection
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// @Tags admin
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// @Accept json
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// @Produce json
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// @Security AdminAuth
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// @Param request body UpdateAlertThresholdsRequest true "Threshold configuration"
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// @Success 200 {object} AlertThresholdView
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// @Failure 400 {object} gin.H
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// @Failure 500 {object} gin.H
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// @Router /admin/alerts/thresholds [put]
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func (h *AlertHandler) UpdateAlertThresholds(c *gin.Context) {
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var req UpdateAlertThresholdsRequest
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if err := c.ShouldBindJSON(&req); err != nil {
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c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
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return
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}
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// Validate positive values
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if req.GlobalQPS != nil && *req.GlobalQPS <= 0 {
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c.JSON(http.StatusBadRequest, gin.H{"error": "global_qps must be positive"})
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return
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}
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if req.MasterRPM != nil && *req.MasterRPM <= 0 {
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c.JSON(http.StatusBadRequest, gin.H{"error": "master_rpm must be positive"})
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return
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}
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if req.MasterRPD != nil && *req.MasterRPD <= 0 {
|
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c.JSON(http.StatusBadRequest, gin.H{"error": "master_rpd must be positive"})
|
|
return
|
|
}
|
|
if req.MasterTPM != nil && *req.MasterTPM <= 0 {
|
|
c.JSON(http.StatusBadRequest, gin.H{"error": "master_tpm must be positive"})
|
|
return
|
|
}
|
|
if req.MasterTPD != nil && *req.MasterTPD <= 0 {
|
|
c.JSON(http.StatusBadRequest, gin.H{"error": "master_tpd must be positive"})
|
|
return
|
|
}
|
|
if req.MinRPMRequests1m != nil && *req.MinRPMRequests1m < 0 {
|
|
c.JSON(http.StatusBadRequest, gin.H{"error": "min_rpm_requests_1m must be non-negative"})
|
|
return
|
|
}
|
|
if req.MinTPMTokens1m != nil && *req.MinTPMTokens1m < 0 {
|
|
c.JSON(http.StatusBadRequest, gin.H{"error": "min_tpm_tokens_1m must be non-negative"})
|
|
return
|
|
}
|
|
|
|
cfg, err := h.loadThresholdConfig()
|
|
if err != nil {
|
|
c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to load thresholds", "details": err.Error()})
|
|
return
|
|
}
|
|
|
|
// Apply updates
|
|
if req.GlobalQPS != nil {
|
|
cfg.GlobalQPS = *req.GlobalQPS
|
|
}
|
|
if req.MasterRPM != nil {
|
|
cfg.MasterRPM = *req.MasterRPM
|
|
}
|
|
if req.MasterRPD != nil {
|
|
cfg.MasterRPD = *req.MasterRPD
|
|
}
|
|
if req.MasterTPM != nil {
|
|
cfg.MasterTPM = *req.MasterTPM
|
|
}
|
|
if req.MasterTPD != nil {
|
|
cfg.MasterTPD = *req.MasterTPD
|
|
}
|
|
if req.MinRPMRequests1m != nil {
|
|
cfg.MinRPMRequests1m = *req.MinRPMRequests1m
|
|
}
|
|
if req.MinTPMTokens1m != nil {
|
|
cfg.MinTPMTokens1m = *req.MinTPMTokens1m
|
|
}
|
|
|
|
if err := h.db.Save(&cfg).Error; err != nil {
|
|
c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to save thresholds", "details": err.Error()})
|
|
return
|
|
}
|
|
|
|
c.JSON(http.StatusOK, toAlertThresholdView(cfg))
|
|
}
|
|
|
|
// loadThresholdConfig loads the threshold config from DB or returns defaults
|
|
func (h *AlertHandler) loadThresholdConfig() (model.AlertThresholdConfig, error) {
|
|
var cfg model.AlertThresholdConfig
|
|
err := h.db.First(&cfg).Error
|
|
if err != nil {
|
|
if err.Error() == "record not found" {
|
|
// Create default config
|
|
cfg = model.DefaultAlertThresholdConfig()
|
|
if createErr := h.db.Create(&cfg).Error; createErr != nil {
|
|
return cfg, createErr
|
|
}
|
|
return cfg, nil
|
|
}
|
|
return cfg, err
|
|
}
|
|
return cfg, nil
|
|
}
|