103 lines
2.5 KiB
Go
103 lines
2.5 KiB
Go
package api
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import (
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"net/http"
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"github.com/pulse-lets-go/internal/models"
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)
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// handleRoute — GET /api/route — главный эндпоинт маршрутизации вызова.
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func (a *API) handleRoute(w http.ResponseWriter, r *http.Request) {
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a.engine.IncrementRouteRequests()
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nodeID, score, fallback := a.engine.GetBestNode()
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// Нет зарегистрированных нод
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if nodeID == "" {
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writeJSON(w, http.StatusServiceUnavailable, models.RouteResponse{
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Error: "no_nodes_registered",
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})
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return
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}
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// Все ноды unhealthy — fallback
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if fallback || score < 0 {
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fallbackGW, _ := a.findFallbackGateway()
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nodes := a.getRouteNodeInfo()
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writeJSON(w, http.StatusOK, models.RouteResponse{
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Fallback: true,
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SIPGateway: fallbackGW,
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Reason: "all_nodes_unhealthy",
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Nodes: nodes,
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})
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return
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}
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// Нормальный маршрут
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gw, ok := a.findBalanceGateway(nodeID)
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if !ok {
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writeError(w, http.StatusInternalServerError, "gateway не найден для ноды")
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return
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}
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writeJSON(w, http.StatusOK, models.RouteResponse{
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NodeID: nodeID,
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Score: score,
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SIPGateway: gw,
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})
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}
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// findBalanceGateway ищет gateway для balance-транка, привязанного к nodeID.
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func (a *API) findBalanceGateway(nodeID string) (string, bool) {
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trunks, err := a.configManager.ReadTrunks()
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if err != nil {
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return "", false
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}
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for _, t := range trunks {
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if t.Type == models.TrunkBalance && t.NodeID == nodeID && t.Enabled {
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return t.Gateway, true
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}
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}
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return "", false
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}
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// findFallbackGateway ищет gateway для fallback-транка.
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func (a *API) findFallbackGateway() (string, bool) {
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trunks, err := a.configManager.ReadTrunks()
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if err != nil {
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return "", false
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}
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for _, t := range trunks {
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if t.Type == models.TrunkFallback && t.Enabled {
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return t.Gateway, true
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}
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}
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return "", false
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}
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// getRouteNodeInfo возвращает список нод с их скорами для ответа маршрутизации.
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func (a *API) getRouteNodeInfo() []models.RouteNodeInfo {
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nodes := a.engine.GetAllNodes()
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result := make([]models.RouteNodeInfo, 0, len(nodes))
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for _, n := range nodes {
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info := models.RouteNodeInfo{
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ID: n.NodeID,
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Score: n.Score,
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Reason: n.LethalReason,
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Status: n.Status,
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}
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if n.Disabled {
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info.Status = "disabled"
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} else if n.IsStale {
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info.Status = "stale"
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} else if n.Score < 0 {
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info.Status = "unhealthy"
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} else {
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info.Status = "healthy"
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}
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result = append(result, info)
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}
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return result
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}
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