LauncherGoDev/Menu/GameShell/10_Settings/Update/update_page.go

package main

import (
  "fmt"
  "bytes"
  "strings"
  gotime "time"
  "os/exec"
  "encoding/json"
  "net/http"
 	"github.com/veandco/go-sdl2/ttf"
	"github.com/cuu/gogame/time"
//	"github.com/cuu/gogame/surface"
  "github.com/cuu/gogame/event"
  //"github.com/cuu/gogame/rect"
	//"github.com/cuu/gogame/color"
//	"github.com/cuu/gogame/font"
	//"github.com/cuu/gogame/draw"
  
	"github.com/cuu/LauncherGoDev/sysgo"
  "github.com/cuu/LauncherGoDev/sysgo/UI"
)

var InfoPageListItemDefaultHeight = 30
var launchergo_path = "/home/cpi/launchergo"

type UpdateConfirmPage struct {
  UI.ConfirmPage
  
  URL string
  MD5 string
  Version string
  GIT bool
}

func NewUpdateConfirmPage() *UpdateConfirmPage {
  p := &UpdateConfirmPage{}
  
  p.ListFont = UI.Fonts["veramono20"]
  p.FootMsg = [5]string{"Nav","","","Cancel","Yes"}
  p.ConfirmText = "Confirm Update?"

  return p
}

func (self *UpdateConfirmPage) KeyDown(ev *event.Event) {

	if ev.Data["Key"] == UI.CurKeys["A"] || ev.Data["Key"] == UI.CurKeys["Menu"] {
		self.ReturnToUpLevelPage()
		self.Screen.Draw()
		self.Screen.SwapAndShow()
	}
  
  if ev.Data["Key"] == UI.CurKeys["B"] {
    if self.GIT == true {
      cmdpath := fmt.Sprintf("feh --bg-center %s/sys.go/gameshell/wallpaper/updating.png; cd %s ;git pull; git reset --hard %s ; feh --bg-center %s/sys.py/gameshell/wallpaper/loading.png ",
      launchergo_path,
      launchergo_path,
      self.Version,
      launchergo_path )
      
      event.Post(UI.RUNEVT,cmdpath)
      return
    }
  }
}

func (self *UpdateConfirmPage) OnReturnBackCb() {
  self.ReturnToUpLevelPage()
  self.Screen.Draw()
  self.Screen.SwapAndShow()
}

func (self *UpdateConfirmPage) Draw() {
  self.ClearCanvas()
  self.DrawBG()
  for _,v := range self.MyList{
    v.Draw()
  }  
  self.Reset()  
}

type UpdatePage struct {
  UI.Page
  AList map[string]map[string]string
  ListFontObj *ttf.Font
  MyList []*UI.InfoPageListItem
  ConfirmPage *UpdateConfirmPage
}

func NewUpdatePage() *UpdatePage {
  p := &UpdatePage{}
  p.FootMsg = [5]string{ "Nav","Check Update","","Back","" }
	p.PageIconMargin = 20
	p.SelectedIconTopOffset = 20
	p.EasingDur = 10

	p.Align = UI.ALIGN["SLeft"]  
  p.ListFontObj = UI.Fonts["varela15"]
  
  return p
}

func (self *UpdatePage) GenList() {
  self.MyList = nil
  self.MyList = make([]*UI.InfoPageListItem,0)

  start_x := 0 
  start_y := 0
  i := 0
  
  for k,_ := range self.AList {
    li := UI.NewInfoPageListItem()
    li.Parent = self
    li.PosX = start_x
    li.PosY = start_y + i*InfoPageListItemDefaultHeight
    li.Width = UI.Width
    li.Fonts["normal"] = self.ListFontObj
    li.Fonts["small"]  = UI.Fonts["varela12"]
    
    if self.AList[k]["label"] != "" {
      li.Init(self.AList[k]["label"])
    }else {
      li.Init(self.AList[k]["key"] )
    }
    
    li.Flag = self.AList[k]["value"]
    self.MyList = append(self.MyList,li)
    
    i+=1
  }
}

func (self *UpdatePage) Init() {
  self.CanvasHWND = self.Screen.CanvasHWND
  self.Width      = self.Screen.Width
  self.Height     = self.Screen.Height
  
  self.ConfirmPage = NewUpdateConfirmPage()
  self.ConfirmPage.Screen = self.Screen
  self.ConfirmPage.Name   = "Update Confirm"
  self.ConfirmPage.Init()
  
  it := make(map[string]string)
  it["key"] = "version"
  it["label"] = "Version"
  it["value"] = sysgo.VERSION
  
  self.AList["version"] = it
  
  self.GenList()
}

func (self *UpdatePage) CheckUpdate() bool {
  self.Screen.MsgBox.SetText("Checking Update")
  self.Screen.MsgBox.Draw()
  self.Screen.SwapAndShow()

  type Response struct {
    GitVersion string `json:"gitversion"`
  }
  
  
  timeout := gotime.Duration(8 * gotime.Second)
  client := http.Client{
    Timeout: timeout,
  }

  resp, err := client.Get(sysgo.UPDATE_URL)
  if err != nil {
    fmt.Println(err)
    return false
  }
  var ret Response
  buf := new(bytes.Buffer)
	buf.ReadFrom(resp.Body)
	respByte := buf.Bytes()
	if err := json.Unmarshal(respByte, &ret); err != nil {
    fmt.Println(err)
		return false
	}

  fmt.Println("got git version :", ret.GitVersion)
	
  launchergo_git_rev_parse := exec.Command("git", "rev-parse", "--short", "HEAD")
  launchergo_git_rev_parse.Dir = launchergo_path
  var out bytes.Buffer
	launchergo_git_rev_parse.Stdout = &out
  err = launchergo_git_rev_parse.Run()
  
  if err != nil {
    fmt.Println(err)
    return false
  }
  
  git_revision_short_hash := strings.Trim(out.String(), "\r\n ")
  
  if git_revision_short_hash != ret.GitVersion {
    self.ConfirmPage.Version = ret.GitVersion
    self.Screen.PushCurPage()
    self.Screen.SetCurPage(self.ConfirmPage)
    
    self.Screen.Draw()
    
    self.ConfirmPage.SnapMsg( fmt.Sprintf("Update to %s?",ret.GitVersion))
    self.Screen.SwapAndShow()
    
  }else {
    self.Screen.Draw()
    self.Screen.MsgBox.SetText("Launcher is up to date")
    self.Screen.MsgBox.Draw()
    self.Screen.SwapAndShow()
    time.BlockDelay(765)
  }
  
  defer resp.Body.Close()
  
  
  return true
  
}

func (self *UpdatePage) KeyDown(ev *event.Event) {
  if ev.Data["Key"] == UI.CurKeys["A"] || ev.Data["Key"] == UI.CurKeys["Menu"] {
		self.ReturnToUpLevelPage()
		self.Screen.Draw()
		self.Screen.SwapAndShow()    
  }
  
  if ev.Data["Key"] == UI.CurKeys["X"] {
    if self.Screen.DBusManager.IsWifiConnectedNow() == true {
      if self.CheckUpdate() == true {
        self.Screen.Draw()
        self.Screen.SwapAndShow()
      }else {
        self.Screen.Draw()
        self.Screen.MsgBox.SetText("Check Update Failed")
        self.Screen.MsgBox.Draw()
        self.Screen.SwapAndShow()
      }
    }else {
      self.Screen.Draw()
      self.Screen.MsgBox.SetText("Please Check your Wi-Fi connection")
      self.Screen.MsgBox.Draw()
      self.Screen.SwapAndShow()
    }
  }
}

func (self *UpdatePage) Draw() {
  self.ClearCanvas()
  for _,v := range self.MyList {
    v.Draw()
  }

}