package app

import (
	"encoding/json"
	"log"
	"net/http"
	"os"
)

func handleGetStatus(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodGet {
		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
		return
	}

	data, err := os.ReadFile(statusFilePath)
	if err != nil {
		if os.IsNotExist(err) {
			http.Error(w, "status file not found", http.StatusNotFound)
			return
		}
		http.Error(w, "failed to read status file", http.StatusInternalServerError)
		return
	}

	var st Status
	if err := json.Unmarshal(data, &st); err != nil {
		http.Error(w, "invalid status.json", http.StatusInternalServerError)
		return
	}

	if st.Iface != "" && st.Iface != "-" && st.Table != "" && st.Table != "-" {
		ok, err := checkPolicyRoute(st.Iface, st.Table)
		if err != nil {
			log.Printf("checkPolicyRoute error: %v", err)
		} else {
			st.PolicyRouteOK = &ok
			st.RouteOK = &ok
		}
	}

	writeJSON(w, http.StatusOK, st)
}