#!/usr/bin/env gbs3

Private $fCompileTime as Float

Private Sub RunScript(sScript As String, sRun As String, bGambasOnly As Boolean) As Float

  Dim aResult as String[]
  Dim sResult As String
  Dim fTime As Float
  
  If bGambasOnly Then
    Print "Running benchmark: '"; sRun; " "; sScript; "'"
  Else
    Print "<!-- Running benchmark: '"; sRun; " "; sScript; "' -->"
  Endif
  
  Shell "/usr/bin/time -v " & sRun & " " & sScript & " 2>&1 >/dev/null" To sResult
  If Not sResult Then Error.Raise("Script '" & sRun & " " & sScript & "' failed!")
  aResult = Split(sResult, "\n")
  For Each sResult In aResult
    sResult = Trim(sResult)
    If sResult Begins "User time" Or If sResult Begins "System time" Then
      fTime += CFloat(Mid$(sResult, InStr(sResult, ":") + 2))
    Endif
  Next
  
  $fCompileTime = 0
  Try $fCompileTime = CFloat(Trim(aResult[0]))
  
  Return fTime

End

Private Sub FormatResult(cResult As Collection, iCount As Integer, sLang As String) As String

  Dim bBetter As Boolean = True
  Dim sFormat As String
  Dim sTest As String

  For Each sTest In ["python", "perl", "gambas"]
    If cResult[sTest] < cResult[sLang] Then
      bBetter = False
      Break
    Endif
  Next

  sFormat = Format(cResult[sLang] / iCount, "0.00")
  If bBetter Then sFormat = "<b>" & sFormat & "</b>"
  Return sFormat

End

Dim sBenchmark As String
Dim cResult As Collection
Dim cAllResult As New Collection
Dim sLang As String 
Dim sResult As String
Dim iPos As Integer
Dim bGambasOnly As Boolean
Dim sBenchmarkOnly As String
Dim iCount As Integer = 1
Dim I As Integer
Dim fTime As Float

For I = 1 To Args.Max

  If Args[I] = "-gambas" Then
    bGambasOnly = True
	Else If Args[I] = "-count" Then
		If I < Args.Max And If Args[I + 1] Not Begins "-" Then
		  Try iCount = Max(1, CInt(Args[I + 1]))
			inc I
		Endif
  Else
    sBenchmarkOnly = Args[I]
  Endif

Next

For I = 1 To iCount

  If iCount > 1 Then Print "-------- Run #"; I;" --------"

	For Each sBenchmark In Dir(Application.Dir, "*.gbs").Sort()

		sBenchmark = File.BaseName(sBenchmark)
		If sBenchmark = "benchmark" Then Continue
		If sBenchmarkOnly And If sBenchmark <> sBenchmarkOnly Then Continue

		cResult = cAllResult[sBenchmark]
		If Not cResult Then
			cResult = New Collection
			cResult.Default = 0.0
			cResult!name = sBenchmark
			cAllResult[sBenchmark] = cResult
		Endif
		
		If Not bGambasOnly Then cResult!python += RunScript(sBenchmark & ".py", "python", bGambasOnly)
		If Not bGambasOnly Then cResult!perl += RunScript(sBenchmark & ".pl", "perl", bGambasOnly)
		fTime = RunScript(sBenchmark & ".gbs", "gbs3 -f -U -c", bGambasOnly)
		cResult!gambasjit += fTime
		cResult!gambasjitwct += fTime - $fCompileTime
		cResult!gambas += RunScript(sBenchmark & ".gbs", "gbs3 -c", bGambasOnly)

	Next
	
Next

Print

' Print "<div style=\"border:solid 1px gray;padding:8px;display:inline-table;background:\">"
' 
' Exec ["uname", "-srv"] To sResult
' Print "<b>Kernel:</b> ";Html(sResult);"<br>"
'
' Exec ["cat", "/proc/cpuinfo"] To sResult
' For Each sResult In Split(sResult, "\n")
'   If sResult Begins "model name" Then
'     iPos = Instr(sResult, ":")
'     If iPos Then
'       Print "<b>CPU:</b> ";Html(Mid$(sResult, iPos+1));"<br>"
'     Endif
'     Break
'   Endif
' Next
' 
' Print "</div>"

If bGambasOnly Then

  For Each cResult In cAllResult
    Print cResult!name; Space$(20 - Len(cResult!name)); ": "; Format(cResult!gambas / iCount, "0.00"); " / ";Format(cResult!gambasjit / iCount, "0.00");" (jit)"; " / ";Format(cResult!gambasjitwct / iCount, "0.00");" (jit without compilation time)"
  Next

Else

  Print "<table class=\"table\">"
  Print "<tr>\n<th>Benchmark</th>"
  For Each sLang In ["Python", "Perl", "Gambas", "Gambas JIT", "Gambas JIT without compilation time"]
    Print "<th style=\"width:12em;\">"; Html(sLang); "</th>"
  Next
  Print "</tr>"
  For Each cResult In cAllResult
    Print "<tr>"
    Print "<td><tt>"; cResult!name; "</tt></td>"
    Print "<td align=\"right\">"; FormatResult(cResult, iCount, "python"); "&nbsp;</td>"
    Print "<td align=\"right\">"; FormatResult(cResult, iCount, "perl"); "&nbsp;</td>"
    Print "<td align=\"right\">"; FormatResult(cResult, iCount, "gambas"); "&nbsp;</td>"
    Print "<td align=\"right\">"; Format(cResult!gambasjit / iCount, "0.00"); "&nbsp;</td>"
    Print "<td align=\"right\">"; Format(cResult!gambasjitwct / iCount, "0.00"); "&nbsp;</td>"
    Print "</tr>"
  Next
  Print "</table>"
  
Endif