package scenarios

import (
	"os"
	"path/filepath"

	_ "github.com/v2ray/v2ray-core/app/router/rules"
	"github.com/v2ray/v2ray-core/common/log"
	"github.com/v2ray/v2ray-core/shell/point"

	// The following are neccesary as they register handlers in their init functions.
	_ "github.com/v2ray/v2ray-core/proxy/blackhole"
	_ "github.com/v2ray/v2ray-core/proxy/dokodemo"
	_ "github.com/v2ray/v2ray-core/proxy/freedom"
	_ "github.com/v2ray/v2ray-core/proxy/http"
	_ "github.com/v2ray/v2ray-core/proxy/shadowsocks"
	_ "github.com/v2ray/v2ray-core/proxy/socks"
	_ "github.com/v2ray/v2ray-core/proxy/vmess/inbound"
	_ "github.com/v2ray/v2ray-core/proxy/vmess/outbound"
)

var (
	runningServers = make([]*point.Point, 0, 10)
)

func TestFile(filename string) string {
	return filepath.Join(os.Getenv("GOPATH"), "src", "github.com", "v2ray", "v2ray-core", "testing", "scenarios", "data", filename)
}

func InitializeServerSetOnce(testcase string) error {
	if err := InitializeServerServer(testcase); err != nil {
		return err
	}
	if err := InitializeServerClient(testcase); err != nil {
		return err
	}
	return nil
}

func InitializeServerServer(testcase string) error {
	return InitializeServer(TestFile(testcase + "_server.json"))
}

func InitializeServerClient(testcase string) error {
	return InitializeServer(TestFile(testcase + "_client.json"))
}

func InitializeServer(configFile string) error {
	config, err := point.LoadConfig(configFile)
	if err != nil {
		log.Error("Failed to read config file (", configFile, "): ", configFile, err)
		return err
	}

	vPoint, err := point.NewPoint(config)
	if err != nil {
		log.Error("Failed to create Point server: ", err)
		return err
	}

	err = vPoint.Start()
	if err != nil {
		log.Error("Error starting Point server: ", err)
		return err
	}
	runningServers = append(runningServers, vPoint)

	return nil
}

func CloseAllServers() {
	for _, server := range runningServers {
		server.Close()
	}
	runningServers = make([]*point.Point, 0, 10)
}