# build-exe.ps1 - build the standalone Clawdmeter.exe (PyInstaller).
#
# Produces dist\Clawdmeter.exe: a single self-contained tray + daemon executable
# that runs on ANY Windows 11 machine with no Python install and no pip. Build it
# on a machine that DOES have Python (e.g. your dev box), then distribute the exe
# via a Gitea release; end users just download and run it (see daemon\README-windows.md).
#
# Usage (from anywhere):
#   powershell -ExecutionPolicy Bypass -File build-exe.ps1

Set-StrictMode -Version Latest
$ErrorActionPreference = "Stop"

function Log { param([string]$Msg) Write-Host "[$(Get-Date -Format HH:mm:ss)] $Msg" }

$RepoRoot = $PSScriptRoot
if (-not $RepoRoot) { $RepoRoot = (Get-Location).Path }
Set-Location $RepoRoot

$VenvDir   = Join-Path $RepoRoot ".venv"
$PythonExe = Join-Path $VenvDir "Scripts\python.exe"

Log "=== Clawdmeter exe build ==="

# 1. Virtual environment
if (-not (Test-Path $PythonExe)) {
    Log "Creating virtual environment at .venv ..."
    & python -m venv $VenvDir
    if ($LASTEXITCODE -ne 0) { throw "venv creation failed (exit $LASTEXITCODE) - is Python on PATH?" }
}

# 2. Runtime dependencies + PyInstaller (the only build-time extra)
Log "Installing runtime dependencies + PyInstaller ..."
& $PythonExe -m pip install --quiet -r (Join-Path $RepoRoot "daemon\requirements-windows.txt")
if ($LASTEXITCODE -ne 0) { throw "pip install (runtime deps) failed (exit $LASTEXITCODE)" }
& $PythonExe -m pip install --quiet pyinstaller
if ($LASTEXITCODE -ne 0) { throw "pip install pyinstaller failed (exit $LASTEXITCODE)" }

# 3. Build from the committed spec (onefile, windowed)
Log "Building dist\Clawdmeter.exe (this takes a minute) ..."
& $PythonExe -m PyInstaller --noconfirm (Join-Path $RepoRoot "clawdmeter.spec")
if ($LASTEXITCODE -ne 0) { throw "PyInstaller build failed (exit $LASTEXITCODE)" }

$ExePath = Join-Path $RepoRoot "dist\Clawdmeter.exe"
if (-not (Test-Path $ExePath)) { throw "Build reported success but $ExePath is missing" }
$sizeMB = [math]::Round((Get-Item $ExePath).Length / 1MB, 1)
Log "Build complete: $ExePath ($sizeMB MB)"
Log "Distribute this exe via a Gitea release - it is intentionally not committed to git."