; livetrace-installer.nsi
; NSIS installer for livetrace v3.3.2
; Builds on Linux (or in Docker) with:  makensis livetrace-installer.nsi
;
; Place livetrace-windows-amd64.exe in the same directory before building.

Unicode True

; ──────────────────────────────────────────────
; Metadata
; ──────────────────────────────────────────────
!define APPNAME     "livetrace"
!define APPVERSION  "3.3.2"
!define PUBLISHER   "ngtech1ltd"

; Source binary name (as built by Go)
!define SRC_EXE     "livetrace-windows-amd64.exe"
; Name it will have after installation
!define INST_EXE    "livetrace.exe"

; Registry key for Add/Remove Programs
!define REG_UNINSTALL \
  "Software\Microsoft\Windows\CurrentVersion\Uninstall\${APPNAME}"

; ──────────────────────────────────────────────
; Installer settings
; ──────────────────────────────────────────────
Name                "${APPNAME} ${APPVERSION}"
OutFile             "livetrace-${APPVERSION}-setup.exe"
InstallDir          "$PROGRAMFILES64\${APPNAME}"
InstallDirRegKey    HKLM "${REG_UNINSTALL}" "InstallLocation"

; Administrator rights required (Program Files + system PATH)
RequestExecutionLevel admin

SetCompressor       /SOLID lzma
SetCompressorDictSize 32

; ──────────────────────────────────────────────
; UI
; ──────────────────────────────────────────────
!include "MUI2.nsh"

!define MUI_ABORTWARNING
!insertmacro MUI_PAGE_DIRECTORY
!insertmacro MUI_PAGE_INSTFILES
!insertmacro MUI_PAGE_FINISH

!insertmacro MUI_UNPAGE_CONFIRM
!insertmacro MUI_UNPAGE_INSTFILES

!insertmacro MUI_LANGUAGE "English"

; ──────────────────────────────────────────────
; Version info (visible in Properties → Details)
; ──────────────────────────────────────────────
VIProductVersion    "3.3.2.0"
VIAddVersionKey     "ProductName"      "${APPNAME}"
VIAddVersionKey     "ProductVersion"   "${APPVERSION}"
VIAddVersionKey     "CompanyName"      "${PUBLISHER}"
VIAddVersionKey     "FileDescription"  "${APPNAME} Installer"
VIAddVersionKey     "FileVersion"      "${APPVERSION}"
VIAddVersionKey     "LegalCopyright"   "(c) ${PUBLISHER}"

; ──────────────────────────────────────────────
; PATH helpers (PowerShell – avoids NSIS macro
; namespace issues between install / uninstall)
; ──────────────────────────────────────────────

; Append $INSTDIR to the machine-wide PATH
; Note: $$p / $$parts / $$_ are PowerShell variables — $$ escapes the $ for NSIS
!macro AddToPath
  DetailPrint "Adding $INSTDIR to system PATH …"
  nsExec::ExecToLog \
    'powershell.exe -NonInteractive -NoProfile -Command \
     "$$p = [Environment]::GetEnvironmentVariable(\"Path\",\"Machine\"); \
      if ($$p -notlike \"*$INSTDIR*\") { \
        [Environment]::SetEnvironmentVariable(\"Path\", \"$$p;$INSTDIR\", \"Machine\") \
      }"'
!macroend

; Remove $INSTDIR from the machine-wide PATH
!macro RemoveFromPath
  DetailPrint "Removing $INSTDIR from system PATH …"
  nsExec::ExecToLog \
    'powershell.exe -NonInteractive -NoProfile -Command \
     "$$parts = [Environment]::GetEnvironmentVariable(\"Path\",\"Machine\") -split \";\"; \
      $$parts = $$parts | Where-Object { $$_ -ne \"$INSTDIR\" }; \
      [Environment]::SetEnvironmentVariable(\"Path\", ($$parts -join \";\"), \"Machine\")"'
!macroend

; ──────────────────────────────────────────────
; Install section
; ──────────────────────────────────────────────
Section "livetrace (required)" SecMain

  SectionIn RO   ; cannot be deselected

  SetOutPath "$INSTDIR"

  ; Copy binary — rename to plain "livetrace.exe" on the way in
  File "/oname=${INST_EXE}" "${SRC_EXE}"

  ; Add install dir to system PATH
  !insertmacro AddToPath

  ; Register with Add/Remove Programs
  WriteRegStr   HKLM "${REG_UNINSTALL}" "DisplayName"          "${APPNAME} ${APPVERSION}"
  WriteRegStr   HKLM "${REG_UNINSTALL}" "DisplayVersion"       "${APPVERSION}"
  WriteRegStr   HKLM "${REG_UNINSTALL}" "Publisher"            "${PUBLISHER}"
  WriteRegStr   HKLM "${REG_UNINSTALL}" "InstallLocation"      "$INSTDIR"
  WriteRegStr   HKLM "${REG_UNINSTALL}" "UninstallString"      '"$INSTDIR\uninstall.exe"'
  WriteRegStr   HKLM "${REG_UNINSTALL}" "QuietUninstallString" '"$INSTDIR\uninstall.exe" /S'
  WriteRegDWORD HKLM "${REG_UNINSTALL}" "NoModify"             1
  WriteRegDWORD HKLM "${REG_UNINSTALL}" "NoRepair"             1

  ; Write the uninstaller
  WriteUninstaller "$INSTDIR\uninstall.exe"

SectionEnd

; ──────────────────────────────────────────────
; Uninstall section
; ──────────────────────────────────────────────
Section "Uninstall"

  ; Remove from system PATH
  !insertmacro RemoveFromPath

  ; Delete files
  Delete "$INSTDIR\${INST_EXE}"
  Delete "$INSTDIR\uninstall.exe"
  RMDir  "$INSTDIR"

  ; Remove Add/Remove Programs entry
  DeleteRegKey HKLM "${REG_UNINSTALL}"

SectionEnd