#define MyAppName      "Lite XL"
#define MyAppVersion   "@PROJECT_VERSION@"
#define MyAppPublisher "Lite XL Team"
#define MyAppURL       "https://lite-xl.com"
#define MyAppExeName   "lite-xl.exe"
#define BuildDir       "@PROJECT_BUILD_DIR@"
#define SourceDir      "@PROJECT_SOURCE_DIR@"

; Use /dArch option to create a setup for a different architecture, e.g.:
; iscc /dArch=x86 innosetup.iss
#ifndef Arch
  #define Arch "x64"
#endif

[Setup]
; NOTE: The value of AppId uniquely identifies this application.
; Do not use the same AppId value in installers for other applications.
; To generate a new GUID, click Tools | Generate GUID inside the InnoSetup IDE.
AppId={{06761240-D97C-43DE-B9ED-C15F765A2D65}

AppName={#MyAppName}
AppVersion={#MyAppVersion}
;AppVerName={#MyAppName} {#MyAppVersion}
AppPublisher={#MyAppPublisher}
AppPublisherURL={#MyAppURL}
AppSupportURL={#MyAppURL}
AppUpdatesURL={#MyAppURL}

#if Arch=="x64"
  ArchitecturesAllowed=x64
  ArchitecturesInstallIn64BitMode=x64
  #define ArchInternal "x86_64"
#else
  #define ArchInternal "i686"
#endif

AllowNoIcons=yes
Compression=lzma
SolidCompression=yes
DefaultDirName={autopf}/{#MyAppName}
DefaultGroupName={#MyAppPublisher}
UninstallFilesDir={app}

; Uncomment the following line to run in non administrative install mode
; (install for current user only.)
;PrivilegesRequired=lowest
PrivilegesRequiredOverridesAllowed=dialog

; The [Icons] "quicklaunchicon" entry uses {userappdata}
; but its [Tasks] entry has a proper IsAdminInstallMode Check.
UsedUserAreasWarning=no

OutputDir=.
OutputBaseFilename=LiteXL-{#MyAppVersion}-{#ArchInternal}-setup
;DisableDirPage=yes
;DisableProgramGroupPage=yes

LicenseFile={#SourceDir}/LICENSE
SetupIconFile={#SourceDir}/resources/icons/icon.ico
UninstallDisplayIcon={app}\{#MyAppExeName}, 0
WizardImageFile="{#SourceDir}/scripts/innosetup/wizard-modern-image.bmp"
WizardSmallImageFile="{#SourceDir}/scripts/innosetup/litexl-55px.bmp"

; Required for the add to path option to refresh environment
ChangesEnvironment=yes

[Languages]
Name: "english"; MessagesFile: "compiler:Default.isl"

[Tasks]
Name: "desktopicon"; Description: "{cm:CreateDesktopIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: unchecked
Name: "quicklaunchicon"; Description: "{cm:CreateQuickLaunchIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: unchecked; OnlyBelowVersion: 6.1; Check: not IsAdminInstallMode
Name: "portablemode"; Description: "Portable Mode"; Flags: unchecked
Name: "envPath"; Description: "Add lite-xl to the PATH variable, allowing it to be run from a command line."

[Files]
Source: "{#SourceDir}/lite-xl/*"; DestDir: "{app}"; Flags: ignoreversion recursesubdirs
; NOTE: Don't use "Flags: ignoreversion" on any shared system files

[Icons]
Name: "{autodesktop}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; Tasks: desktopicon
Name: "{group}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; Check: not WizardIsTaskSelected('portablemode')
Name: "{group}\{cm:UninstallProgram,{#MyAppName}}"; Filename: "{uninstallexe}"; Check: not WizardIsTaskSelected('portablemode')
Name: "{userappdata}\Microsoft\Internet Explorer\Quick Launch\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; Tasks: quicklaunchicon; Check: not WizardIsTaskSelected('portablemode')
; Name: "{usersendto}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"

[Registry]
Root: "HKA"; Subkey: "Software\Classes\*\shell\{#MyAppName}"; ValueType: string; ValueName: ""; ValueData: "Open with {#MyAppName}"; Flags: uninsdeletekey
Root: "HKA"; Subkey: "Software\Classes\*\shell\{#MyAppName}"; ValueType: string; ValueName: "Icon"; ValueData: "{app}\{#MyAppExeName}, 0"; Flags: uninsdeletekey
Root: "HKA"; Subkey: "Software\Classes\*\shell\{#MyAppName}\command"; ValueType: string; ValueName: ""; ValueData: """{app}\{#MyAppExename}""  ""%1"""; Flags: uninsdeletekey
Root: "HKA"; Subkey: "Software\Classes\directory\shell\{#MyAppName}"; ValueType: string; ValueName: ""; ValueData: "Open with {#MyAppName}"; Flags: uninsdeletekey
Root: "HKA"; Subkey: "Software\Classes\directory\shell\{#MyAppName}"; ValueType: string; ValueName: "Icon"; ValueData: "{app}\{#MyAppExeName}, 0"; Flags: uninsdeletekey
Root: "HKA"; Subkey: "Software\Classes\directory\shell\{#MyAppName}\command"; ValueType: string; ValueName: ""; ValueData: """{app}\{#MyAppExename}""  ""%1"""; Flags: uninsdeletekey
Root: "HKA"; Subkey: "Software\Classes\directory\background\shell\{#MyAppName}"; ValueType: string; ValueName: ""; ValueData: "Open with {#MyAppName}"; Flags: uninsdeletekey
Root: "HKA"; Subkey: "Software\Classes\directory\background\shell\{#MyAppName}"; ValueType: string; ValueName: "Icon"; ValueData: "{app}\{#MyAppExeName}, 0"; Flags: uninsdeletekey
Root: "HKA"; Subkey: "Software\Classes\directory\background\shell\{#MyAppName}\command"; ValueType: string; ValueName: ""; ValueData: """{app}\{#MyAppExename}""  ""%V"""; Flags: uninsdeletekey

[Run]
Filename: "{app}/{#MyAppExeName}"; Description: "{cm:LaunchProgram,{#StringChange(MyAppName, '&', '&&')}}"; Flags: nowait postinstall skipifsilent

[Setup]
Uninstallable=not WizardIsTaskSelected('portablemode')

; Code to add installation path to environment taken from:
; https://stackoverflow.com/a/46609047
[Code]
const EnvironmentKey = 'SYSTEM\CurrentControlSet\Control\Session Manager\Environment';

procedure EnvAddPath(Path: string);
var
  Paths: string;
begin
  { Retrieve current path (use empty string if entry not exists) }
  if not RegQueryStringValue(HKEY_LOCAL_MACHINE, EnvironmentKey, 'Path', Paths)
  then Paths := '';

  { Skip if string already found in path }
  if Pos(';' + Uppercase(Path) + ';', ';' + Uppercase(Paths) + ';') > 0 then exit;

  { App string to the end of the path variable }
  Paths := Paths + ';'+ Path +';'

  { Overwrite (or create if missing) path environment variable }
  if RegWriteStringValue(HKEY_LOCAL_MACHINE, EnvironmentKey, 'Path', Paths)
  then Log(Format('The [%s] added to PATH: [%s]', [Path, Paths]))
  else Log(Format('Error while adding the [%s] to PATH: [%s]', [Path, Paths]));
end;

procedure EnvRemovePath(Path: string);
var
  Paths: string;
  P: Integer;
begin
  { Skip if registry entry not exists }
  if not RegQueryStringValue(HKEY_LOCAL_MACHINE, EnvironmentKey, 'Path', Paths) then
    exit;

  { Skip if string not found in path }
  P := Pos(';' + Uppercase(Path) + ';', ';' + Uppercase(Paths) + ';');
  if P = 0 then exit;

  { Update path variable }
  Delete(Paths, P - 1, Length(Path) + 1);

  { Overwrite path environment variable }
  if RegWriteStringValue(HKEY_LOCAL_MACHINE, EnvironmentKey, 'Path', Paths)
  then Log(Format('The [%s] removed from PATH: [%s]', [Path, Paths]))
  else Log(Format('Error while removing the [%s] from PATH: [%s]', [Path, Paths]));
end;

procedure CurStepChanged(CurStep: TSetupStep);
begin
  if (CurStep = ssPostInstall) and WizardIsTaskSelected('envPath')
  then EnvAddPath(ExpandConstant('{app}'));
end;

procedure CurUninstallStepChanged(CurUninstallStep: TUninstallStep);
begin
  if CurUninstallStep = usPostUninstall
  then EnvRemovePath(ExpandConstant('{app}'));
end;