/*
 * Copyright (C) 2018 "IoT.bzh"
 * Author Sebastien Douheret <sebastien@iot.bzh>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package agent

import (
	"net/http"
	"time"

	"gerrit.automotivelinux.org/gerrit/src/xds/xds-agent.git/lib/xaapiv1"
	common "gerrit.automotivelinux.org/gerrit/src/xds/xds-common.git"
	"github.com/gin-gonic/gin"
)

// getServersList Return the list of XDS Servers
func (s *APIService) getServersList(c *gin.Context) {
	confMut.Lock()
	defer confMut.Unlock()

	svrList := []xaapiv1.ServerCfg{}
	for _, svr := range s.xdsServers {
		svrList = append(svrList, svr.GetConfig())
	}

	c.JSON(http.StatusOK, svrList)
}

// getServer Return info of a XDS Servers
func (s *APIService) getServer(c *gin.Context) {

	id := s.ParamGetIndex(c)
	if id == "" {
		common.APIError(c, "invalid parameter, id must be set")
		return
	}

	confMut.Lock()
	defer confMut.Unlock()

	svr := s.GetXdsServerFromURLIndex(id)
	if svr == nil {
		common.APIError(c, "unknown id")
		return
	}

	c.JSON(http.StatusOK, svr.GetConfig())
}

// reconnectServer Force reconnection of a XDS Server
func (s *APIService) reconnectServer(c *gin.Context) {

	id := s.ParamGetIndex(c)
	if id == "" {
		common.APIError(c, "invalid parameter, id must be set")
		return
	}

	svr := s.GetXdsServerFromURLIndex(id)
	if svr == nil {
		common.APIError(c, "unknown id")
		return
	}

	s.Log.Debugf("Reconnect XDS Server id %v", svr.ID)

	if err := svr.Close(); err != nil {
		common.APIError(c, err.Error())
		return
	}

	time.Sleep(time.Millisecond * 100)

	if err := svr.Connect(); err != nil {
		common.APIError(c, err.Error())
		return
	}

	c.JSON(http.StatusOK, svr.GetConfig())
}