; File name: BigPause-118-m3u.au3
; This file was mostly made by CYCho and minimally modified by carlvanwormer.
; It is the dumbest remote control possible, with the .exe set up to auto-run on a tablet at boot-up.
; It was desiged to be a control for my minimally functional dad so he could control the 8 seasons
; of the Monk series.  It works great for his needs.
; It needed to run the VLC player to access the second channel English sound and captioning.
; Many thanks to the significant support that CYCho gave as I struggled on my simple details.
; The other physical control was modified to have a single, giant (4" diameter" button to power the TV on and off.
;
; note: the play-pause button changes color to indicate activity, but I couldn't use Play changing to Pause with the
; color changes because the command could get out-of-sync with rapid activation.  Since I couldn't fugure out how to
; issue separate play and pause commands, I used this cop-out solution.
;

#include <File.au3>
#include <Array.au3>
#include <GuiConstants.au3>
#include <ColorConstants.au3>


Opt("WinTitleMatchMode", 2)

HotKeySet("^!{END}", "MyExit")

$vlcPath = RegRead("HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\vlc.exe", "")
If $vlcPath = "" Then Exit MsgBox(0, "", "VLC is not installed!")

Global $fileTypes = "mp4 wmv avi mkv flv webM"
Global $aList, $guiMsg, $lPaused

If Not FileExists(@ScriptDir & "\VLC-Playlist.m3u") Then
	; All file names must be in English characters. Initially the playlist will be in alphabetical order.
	; MyExit() rearranges the playlist so that current file comes on the top
	$aList = _FileListToArrayRec(@ScriptDir, StringReplace("*." & $fileTypes, " ", ";*."), 1, 0, 0, 2)
	If Not IsArray($aList) Then
		MsgBox(0, "", "This program should reside in the driectory where video files are located.")
		Exit
	EndIf

	Global $oShellApp = ObjCreate("shell.application"), $sDir, $sFile, $playList, $iIndex
	$playList &= '#EXTM3U' & @CR
	For $i = 1 To $aList[0]
		$sTitle = FileGetProperty(21)		; media title in Windows 10
		$sDuration = FileGetProperty(27)	; media duration in Windows 10
		$playList &= '#EXTINF:' & $sDuration & ',' & $sTitle & @CR
		$playList &= 'file:///' & URLEncode($aList[$i]) & @CR
	Next
	$fh = FileOpen(@ScriptDir & "\VLC-Playlist.m3u", 2)
	FileWrite($fh, $playList)
	FileClose($fh)
EndIf



; $vcWidth and $vcHeight set the rectangular dimensions of the control
; Button numbers = Left, Top, Width, Height

; set control and button sizes
Global $vcWidth = 1260, $vcHeight = 700
; main control dimensions
Global $outerBorder = 10 ; gap between buttons and border
Global $buttonGap = 50 ; gap between buttons
Global $exitHeight = 20 ; Exit button (small to minimize accidental activation)
Global $exitWidth = 50 ; Exit button
Global $prevnextHeight=70 ; Height of Previous and Next

; then calculate other button values
Global $pauseWidth = $vcWidth-2*$outerBorder ; pause fills width
Global $pauseHeight = $vcHeight - $prevnextHeight - $buttonGap - $exitHeight - $outerBorder ; Pause fills remaining height
Global $prevnextTop = $exitHeight - $buttonGap + $outerBorder ; position for uniform spacing

Global $vcGUI = GUICreate("zPlayer_Simple by C Y Cho (CBV mods V1.0)", $vcWidth, $vcHeight, -1, -1)
Global $vcPause = GUICtrlCreateButton("Play-Pause", $outerBorder, $exitHeight+$buttonGap + $prevnextHeight, $pauseWidth, $pauseHeight)
GUICtrlSetFont(-1, $vcWidth/8, 900)
GUICtrlSetColor(-1, 0x000000)
;GUICtrlSetBkColor(-1, 0x666666)
GUICtrlSetBkColor($vcPause, $COLOR_RED)
GUICtrlSetCursor(-1, 0)
Global $vcPrevious  = GUICtrlCreateButton("Previous", $outerBorder, $prevnextTop+$buttonGap, $vcWidth/2-$buttonGap, $prevnextHeight)
GUICtrlSetFont(-1, 40, 900)
GUICtrlSetColor(-1, 0x666666)
GUICtrlSetCursor(-1, 0)
Global $vcNext      = GUICtrlCreateButton("Next", $vcWidth/2+$buttonGap, $prevnextTop+$buttonGap, $vcWidth/2 - $buttonGap -$outerBorder, $prevnextHeight)
GUICtrlSetFont(-1, 40, 900)
GUICtrlSetColor(-1, 0x666666)
GUICtrlSetCursor(-1, 0)
Global $vcExit  = GUICtrlCreateButton("Exit", ($vcWidth-$exitWidth)/2, $outerBorder,$exitWidth,$exitHeight)
GUICtrlSetFont(-1, 10, 900)
GUICtrlSetColor(-1, 0x666666)
GUICtrlSetCursor(-1, 0)
GUISetState(@SW_SHOW, $vcGUI)
WinSetOnTop($vcGUI, "", 1)


Global $pid, $hWnd, $seconds, $h
$h = TimerInit()
$pid = Run($vlcPath & " " & @ScriptDir & "\VLC-Playlist.m3u")
While 1
    If $pid <> "" Then
		ConsoleWrite ("**PID obtained after " & TimerDiff($h) & " milliseconds = " & $pid & @CRLF)
        ExitLoop
    EndIf
    If $seconds > 10 Then
        ConsoleWrite ("**VLC launch timeeout after 10 seconds" & @CRLF)
		GUIDelete()
		Exit
    EndIf
	Sleep(10)
WEnd

$h = TimerInit()
While 1
	$hWnd = WinGetHandle(" - VLC ")
	If $hWnd <> "" Then ExitLoop
	If TimerDiff($h) > 10000 Then
		ProcessClose("vlc.exe")
		 ConsoleWrite ("**WinGetHandle() timedout after 10 seconds" & @CRLF)
		GUIDelete()
		Exit
	EndIf
	Sleep(100)
WEnd
ConsoleWrite ("**Window handle obtained after " & TimerDiff($h) & " milliseconds = " & $hWnd & @CRLF)
WinMove($hWnd, "", @DesktopWidth, 0)	; This line should be uncommented when using dual monitors
WinSetState($hWnd, "", @SW_MAXIMIZE)


;note - the play/pause button can get out of sync since it is a toggle.  try to ficd out if there is a vlc status byte to indicate pause state
While 1
    $guiMsg = GUIGetMsg()
    Switch $guiMsg
        Case $vcNext
            WinActivate($hWnd)
            Send("{MEDIA_NEXT}")
            If $lPaused = True Then
                GUICtrlSetData($vcPause, "Play-Pause")
				GUICtrlSetBkColor($vcPause, $COLOR_RED)
                $lPaused = False
            EndIf
        Case $vcPrevious
            WinActivate($hWnd)
            Send("{MEDIA_PREV}")
            If $lPaused = True Then
                GUICtrlSetData($vcPause, "Play-Pause")
				GUICtrlSetBkColor($vcPause, $COLOR_RED)
                $lPaused = False
            EndIf
        Case $vcPause
            WinActivate($hWnd)
            If $lPaused = False Then
                GUICtrlSetData($vcPause, "Play-Pause")
				GUICtrlSetBkColor($vcPause, $COLOR_GREEN)
                $lPaused = True
            Else
                GUICtrlSetData($vcPause, "Play-Pause")
				GUICtrlSetBkColor($vcPause, $COLOR_RED)
                $lPaused = False
            EndIf
            Send("{MEDIA_PLAY_PAUSE}")
        Case $vcExit, $GUI_EVENT_CLOSE
            MyExit()
	EndSwitch

WEnd

Func FileGetProperty($iIndex)
	Local $sDir = StringTrimRight($aList[$i], (StringLen($aList[$i]) - StringInStr($aList[$i], "\", 0, -1)))
	Local $sFile = StringTrimLeft($aList[$i], StringInStr($aList[$i], "\", 0, -1))
	Local $oDir = $oShellApp.NameSpace($sDir)
	Local $oFile = $oDir.Parsename($sFile)
	Local $sProperty = $oDir.GetDetailsOf($oFile, $iIndex)
	If $iIndex = 21 And $sProperty = "" Then	; Title
		$sProperty = $sFile
	ElseIf $iIndex = 27 And StringInStr($sProperty, ":") Then	; Duration
		Local $aProperty = StringSplit($sProperty, ":")
		$sProperty = $aProperty[1]*3600 + $aProperty[2]*60 + $aProperty[3]
	EndIf
	Return $sProperty
EndFunc

Func URLEncode($sFileName)	; encodes file names to UTF-8
	Local $sBinary = StringToBinary($sFileName, 4)
	Local $sEncodedName = ""
	For $j = 1 To BinaryLen($sBinary)
		Local $sByte = StringTrimLeft(BinaryMid($sBinary, $j, 1), 2)
		Local $ascii = Dec($sByte)
		If ($ascii >= 48 And $ascii <= 57) Or ($ascii >= 65 And $ascii <= 90) Or ($ascii >= 97 And $ascii <= 122) _
			Or StringInStr("45 46 58 91 93 95", StringRight(1000+$ascii, 2)) Then
			$sEncodedName &= Chr($ascii)
		ElseIf $ascii = 92 Then
			$sEncodedName &= "/"
		Else
			$sEncodedName &= "%" & $sByte
		EndIf
	Next
	Return $sEncodedName
EndFunc

Func MyExit()	; Playlist is saved, with current file on the top
	$winTitle = WinGetTitle($hWnd)
	$winTitle = StringLeft($winTitle, StringInStr($winTitle, " - VLC")-1)
	$playList = FileReadToArray(@ScriptDir & "\VLC-Playlist.m3u")
	$fh = FileOpen(@ScriptDir & "\VLC-Playlist.m3u", 2)
	FileWriteLine($fh, "#EXTM3U")
	For $i = 1 To UBound($playList)-1	; determine the current file by comparing window title to playlist
		$sTitle = StringMid($playList[$i], StringInStr($playList[$i], ",")+1)
		If StringInStr($playList[$i], "#EXTINF:") And StringInStr($winTitle, $sTitle) Then ExitLoop
	Next
	_FileWriteFromArray($fh, $playList, $i)			; from current file to last file
	_FileWriteFromArray($fh, $playList, 1, $i-1)	; from first file to file before the current file
	FileClose($fh)
	ProcessClose("vlc.exe")
	GUIDelete()
	Exit
EndFunc