#!/usr/bin/env gbs3

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

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

End

Private Sub FormatResult(cResult As Collection, 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], "0.00")
  If bBetter Then sFormat = "<b>" & sFormat & "</b>"
  Return sFormat

End

Dim sBenchmark As String
Dim cResult As Collection
Dim aResult As New Collection[]
Dim sLang As String 
Dim sResult As String
Dim iPos As Integer

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

  sBenchmark = File.BaseName(sBenchmark)
  If sBenchmark = "benchmark" Then Continue
  If Args[1] And If sBenchmark <> Args[1] Then Continue

  cResult = New Collection
  aResult.Add(cResult)
  
  cResult!name = sBenchmark
  cResult!gambasjit = RunScript(sBenchmark & ".gbs", "gbs3 -f -c")
  cResult!gambas = RunScript(sBenchmark & ".gbs", "gbs3 -c")
  cResult!python = RunScript(sBenchmark & ".py", "python")
  cResult!perl = RunScript(sBenchmark & ".pl", "perl")

Next

' 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>"

Print "<table class=\"table\">"
Print "<tr>\n<th>Benchmark</th>"
For Each sLang In ["Python","Perl","Gambas","Gambas + JIT"]
  Print "<th style=\"width:12em;\">"; Html(sLang);"</th>"
Next
Print "</tr>"
For Each cResult In aResult
  Print "<tr>"
  Print "<td><tt>";cResult!name; "</tt></td>"
  Print "<td align=\"right\">"; FormatResult(cResult, "python");"&nbsp;</td>"
  Print "<td align=\"right\">"; FormatResult(cResult, "perl");"&nbsp;</td>"
  Print "<td align=\"right\">"; FormatResult(cResult, "gambas");"&nbsp;</td>"
  Print "<td align=\"right\">"; Format(cResult!gambasjit, "0.00");"&nbsp;</td>"
  Print "</tr>"
Next
Print "</table>"