package app

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

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

	body, restart, err := decodeTransportSingBoxProfileRollbackRequest(r)
	if err != nil {
		http.Error(w, "bad json", http.StatusBadRequest)
		return
	}

	singBoxProfilesMu.Lock()
	defer singBoxProfilesMu.Unlock()

	status, resp := executeTransportSingBoxProfileRollbackLocked(id, body, restart)
	writeJSON(w, status, resp)
}

func decodeTransportSingBoxProfileRollbackRequest(r *http.Request) (SingBoxProfileRollbackRequest, bool, error) {
	var body SingBoxProfileRollbackRequest
	if r.Body != nil {
		defer r.Body.Close()
		if err := json.NewDecoder(io.LimitReader(r.Body, 1<<20)).Decode(&body); err != nil && err != io.EOF {
			return SingBoxProfileRollbackRequest{}, false, err
		}
	}
	restart := true
	if body.Restart != nil {
		restart = *body.Restart
	}
	return body, restart, nil
}