package main

import (
	"encoding/json"
	"fmt"
	"github.com/edindazdarevic/confighub/chub/client"
	"github.com/edindazdarevic/confighub/chub/globals"
	homedir "github.com/mitchellh/go-homedir"
	"io/ioutil"
	"os"
	"path/filepath"
	"runtime"
)

func initCommand(guid string) {
	configuration := config{MachineGuid: guid}
	saveGuidToHomedir(configuration)

	hostname, err := os.Hostname()
	globals.PanicWithStyle("Something is terribly wrong. I am sorry. I am so so sorry. :~(", err)

	machineToInitialize := client.Machine{hostname, runtime.GOOS, runtime.GOARCH, guid}
	finishedOk := client.Init(&machineToInitialize)

	if finishedOk {
		fmt.Printf("Successfuly initialized the machine with id %v\n", guid)
	}

}

type config struct {
	MachineGuid string
}

func saveGuidToHomedir(configuration config) {

	directoryName, err := homedir.Dir()
	globals.PanicWithStyle("I cannot find your home directory. Are you homeless ? ", err)

	expandedDirectoryName, err := homedir.Expand(directoryName)
	globals.PanicWithStyle("Cannot know your full path to home directory. Is it a secret ? ", err)

	directory := expandedDirectoryName + globals.RuneToAscii(filepath.Separator) + globals.ConfigurationFolderName
	if !globals.FileExists(directory) {
		err = os.Mkdir(directory, globals.ConfigurationFilePermissions)
		globals.PanicWithStyle("I simply cannot make the directory. Am I alowed to ?", err)
	}

	configByteContent, err := json.Marshal(configuration)
	globals.PanicWithStyle("Something is terribly wrong. I am sorry. I am so so sorry. :~(", err)

	err = ioutil.WriteFile(directory+globals.RuneToAscii(filepath.Separator)+globals.ConfigurationFileName, configByteContent, globals.ConfigurationFilePermissions)
	globals.PanicWithStyle("I cannot write to config file in user directory. How can this be ?", err)

}