; Installer.nsi
;
; This script will install hw.bat and Apache Tomcat server onto the
; computer of the user and into the directory that the user selects.

;-----------------------------------

;--------------------------------
; Constants
;--------------------------------
!define GET_JAVA_URL "http://www.java.com"

;--------------------------------
; Variables
;--------------------------------
  Var JAVA_HOME
  Var JAVA_VER
  Var JAVA_INSTALLATION_MSG


; The name of the installer
Name "Installer"

; The file to write to
outfile "Installer.exe"

; The default installation directory
InstallDir $PROGRAMFILES\Installer

; Registry key to check for directory (so if you install again, it will
; overwrite the old one automatically).
InstallDirRegKey HKLM "Software\NSIS_Installer" "Install_Dir"

;----------------------------------

; Pages

Page components
Page directory
Page instfiles

UninstPage uninstConfirm
UninstPage instfiles

;----------------------------------

; The stuff to install
Section "Installer (required)"

  SectionIn RO

  ; Set output path to the installation directory
  SetOutPath $INSTDIR

  ; Where the file would be placed
   File "C:\Revin\helloworld.java"
   File "C:\Revin\HelloWorld.class"
   File "C:\Revin\MsgBox.java"
   File "C:\Revin\test.bat"
   File "C:\Revin\MsgBox.class"
   File "C:\Revin\hw.bat"
   File "C:\Revin\Tomcat\Installer.zip"
   File "C:\j2sdk-1_4_2_02-windows-i586-p.exe" 

  ; Write the uninstall keys for the uninstaller
  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Installer" "DisplayName" "NSIS Installer"
  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Installer" "UninstallString" '"$INSTDIR\uninstall.exe"'
  WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Installer" "NoModify" 1
  WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Installer" "NoRepair" 1
  WriteUninstaller "uninstall.exe"

SectionEnd

Section "JRE Locate and Set Path and Classpath Section" JRECheckAndEnvSection
    Call LocateJVM
    StrCmp "" $JAVA_INSTALLATION_MSG Success OpenBrowserToGetJava

    Success:
        Call SetEnv
        Goto Done

    OpenBrowserToGetJava:
        Exec '"explorer.exe" ${GET_JAVA_URL}'
        
    Done:
SectionEnd
;--------------------------------
Function LocateJVM
    ;Check for Java version and location
    Push $0
    Push $1
    
    ReadRegStr $JAVA_VER HKLM "SOFTWARE\JavaSoft\Java Runtime Environment"CurrentVersion
    StrCmp "" "$JAVA_VER" JavaNotPresent CheckJavaVer

    JavaNotPresent:
        StrCpy $JAVA_INSTALLATION_MSG "Java Runtime Environment is not installed on your computer. You need version 1.4 or newer to run this program."
        Goto Done

    CheckJavaVer:
        ReadRegStr $0 HKLM "SOFTWARE\JavaSoft\Java Runtime Environment\$JAVA_VER" JavaHome
        GetFullPathName /SHORT $JAVA_HOME "$0"
        StrCpy $0 $JAVA_VER 1 0
        StrCpy $1 $JAVA_VER 1 2
        StrCpy $JAVA_VER "$0$1"
        IntCmp 14 $JAVA_VER FoundCorrectJavaVer FoundCorrectJavaVer JavaVerNotCorrect
        
    FoundCorrectJavaVer:
        IfFileExists "$JAVA_HOME\bin\javaw.exe" 0 JavaNotPresent
        ;MessageBox MB_OK "Found Java: $JAVA_VER at $JAVA_HOME"
        Goto Done
        
    JavaVerNotCorrect:
        StrCpy $JAVA_INSTALLATION_MSG "The version of Java Runtime Environment installed on your computer is $JAVA_VER. Version 1.4 or newer is required to run this program."
        
    Done:
        Pop $1
        Pop $0
FunctionEnd
;--------------------------------
Function SetEnv
    Push $3
    Push $4
    
    FileOpen $4 "$INSTDIR\setEnv.cmd" w
    StrCpy $3 "Set CLASSPATH=$JAVA_HOME\jre\lib\rt.jar;$JAVA_HOME\lib\dt.jar;%CLASSPATH%"
    FileWrite $4 "$3"

    FileWriteByte $4 "13"
    FileWriteByte $4 "10"

    StrCpy $3 "Set PATH=$JAVA_HOME\bin;%PATH%"
    FileWrite $4 "$3"
    FileClose $4
    
    Pop $4
    Pop $3
FunctionEnd

; Optional Section (can be disabled by the user)
Section "Start Menu Shortcuts"
  
  CreateDirectory "$SMPROGRAMS\Installer"
  CreateShortCut "$SMPROGRAMS\Installer\Hello World (MsgBox).lnk" "$INSTDIR\hw.bat" "" "$INSTDIR\hw.bat" 0
  CreateShortCut "$SMPROGRAMS\Installer\Extract Files.lnk" "$INSTDIR\test.bat" "" "$INSTDIR\test.bat" 0
  CreateShortCut "$SMPROGRAMS\Installer\Java.lnk" "$INSTDIR\j2sdk-1_4_2_02-windows-i586-p.exe" "" "$INSTDIR\j2sdk-1_4_2_02-windows-i586-p.exe" 0
  CreateShortCut "$SMPROGRAMS\Installer\Apache Tomcat.lnk" "$INSTDIR\Installer.zip" "" "$INSTDIR\Installer.zip" 0 
  CreateShortCut "$SMPROGRAMS\Installer\Set Environment Variable.lnk" "$INSTDIR\setEnv.cmd" "" "$INSTDIR\setEnv.cmd" 0
  CreateShortCut "$SMPROGRAMS\Installer\Uninstall.lnk" "$INSTDIR\uninstall.exe" "" "$INSTDIR\uninstall.exe" 0

SectionEnd

;------------------------------------------

;uninstaller

Section "Uninstall"

   ; Remove registry keys
   DeleteRegKey HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\Installer"
   DeleteRegKey HKLM SOFTWARE\NSS_Installer

   ; Remove files and uninstaller
   Delete $INSTDIR\hw.bat
   Delete $INSTDIR\helloworld.java
   Delete $INSTDIR\HelloWorld.class
   Delete $INSTDIR\MsgBox.java
   Delete $INSTDIR\MsgBox.class
   Delete $INSTDIR\startup.bat
   Delete $INSTDIR\test.bat
   Delete $INSTDIR\tomcat.exe
   Delete $INSTDIR\Installer.zip
   Delete $INSTDIR\jakarta-tomcat-4.1.30
   Delete $INSTDIR\META-INF
   Delete $INSTDIR\setEnv.cmd
   Delete $INSTDIR\j2sdk-1_4_2_02-windows-i586-p.exe
   Delete $INSTDIR\uninstall.exe

   ; Remove shortcuts, if any
   Delete "$SMPROGRAMS\Installer\*.*"

   ; Remove directories used
   RMDir "$SMPROGRAMS\Installer"
   RMDir "$INSTDIR"

SectionEnd