package httpserver

import (
	"encoding/json"
	"net/http"

	dockerconn "dockermanager/backend/internal/docker"
)

func handleHealthz(w http.ResponseWriter, r *http.Request) {
	writeJSON(w, http.StatusOK, map[string]string{"status": "ok"})
}

func handleListContainers(d dockerconn.HostConnector) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		containers, err := d.ListContainers(r.Context())
		if err != nil {
			writeJSON(w, http.StatusBadGateway, map[string]string{"error": err.Error()})
			return
		}
		writeJSON(w, http.StatusOK, containers)
	}
}

func writeJSON(w http.ResponseWriter, status int, body any) {
	w.Header().Set("Content-Type", "application/json")
	w.WriteHeader(status)
	_ = json.NewEncoder(w).Encode(body)
}