package generate

import (
	"github.com/Akilan1999/p2p-rendering-computation/config"
	"os"
)

var (
	defaults       = map[string]interface{}{}
	configPaths    []string
	defaultEnvName = "P2PRC"
)

// GetPathP2PRC Getting P2PRC Directory from environment variable
func GetPathP2PRC() (string, error) {
	curDir := os.Getenv(defaultEnvName)
	return curDir + "/", nil
}

// SetEnvName Sets the environment name
// This is to ensure that the Path of your project is detected from
// your environment variable
// This is useful when extending the use case of P2PRC
func SetEnvName(EnvName string) error {
	if EnvName != "" {
		defaultEnvName = EnvName
	}
	// Handling error to be implemented only if needed
	return nil
}

// GetCurrentPath Getting P2PRC Directory from environment variable
func GetCurrentPath() (string, error) {
	curDir := os.Getenv("PWD")
	return curDir + "/", nil
}

// SetDefaults This function to be called only during a
// make install
func SetDefaults(envName string, forceDefault bool) error {
	//Setting current directory to default path
	defaultPath, err := GetCurrentPath()
	if err != nil {
		return err
	}

	// Set Env name
	err = SetEnvName(envName)
	if err != nil {
		return err
	}

	////Creates ip_table.json in the json directory
	//err = Copy("p2p/ip_table.json", "p2p/iptable/ip_table.json")
	//if err != nil {
	//    return err
	//}
	//
	////Creates a copy of trackcontainers.json in the appropriate directory
	//err = Copy("client/trackcontainers.json", "client/trackcontainers/trackcontainers.json")
	//if err != nil {
	//    return err
	//}
	//
	////Creates a copy of trackcontainers.json in the appropriate directory
	//err = Copy("client/grouptrackcontainers.json", "client/trackcontainers/grouptrackcontainers.json")
	//if err != nil {
	//    return err
	//}

	//Setting default paths for the config file
	defaults["IPTable"] = defaultPath + "p2p/iptable/ip_table.json"
	defaults["DefaultDockerFile"] = defaultPath + "server/docker/containers/docker-ubuntu-sshd/"
	defaults["DockerContainers"] = defaultPath + "server/docker/containers/"
	defaults["SpeedTestFile"] = defaultPath + "p2p/50.bin"
	defaults["IPV6Address"] = ""
	defaults["PluginPath"] = defaultPath + "plugin/deploy"
	defaults["TrackContainersPath"] = defaultPath + "client/trackcontainers/trackcontainers.json"
	defaults["GroupTrackContainersPath"] = defaultPath + "client/trackcontainers/grouptrackcontainers.json"
	defaults["ServerPort"] = "8088"
	defaults["FRPServerPort"] = "0"
	defaults["BehindNAT"] = "True"
	// Random name generator
	hostname, err := os.Hostname()
	if err != nil {
		return err
	}

	defaults["MachineName"] = hostname
	//defaults["NetworkInterface"] = "wlp0s20f3"
	//defaults["NetworkInterfaceIPV6Index"] = "2"

	//Paths to search for config file
	configPaths = append(configPaths, defaultPath)

	if fileExists(defaultPath+"config.json") && forceDefault {
		err := os.Remove(defaultPath + "config.json")
		if err != nil {
			return err
		}
	}

	//Calling configuration file
	_, err = config.ConfigInit(defaults, envName)
	if err != nil {
		return err
	}

	err = GenerateFiles()
	if err != nil {
		return err
	}
	return nil
}