#Requires -Version 5.1
<#
.SYNOPSIS
    Build roadamp.exe

.PARAMETER OutDir
    Output directory. Defaults to the project root (where this script lives).

.PARAMETER Version
    Version string embedded via -ldflags. Defaults to the current git tag/commit.

.EXAMPLE
    .\build.ps1
    .\build.ps1 -OutDir C:\Deploy\roadamp
#>
param(
    [string]$OutDir  = $PSScriptRoot,
    [string]$Version = ""
)

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

Push-Location $PSScriptRoot
try {
    # Resolve version from git if not supplied
    if (-not $Version) {
        $tag    = git describe --tags --always --dirty 2>$null
        $Version = if ($tag) { $tag } else { "dev" }
    }

    $out = Join-Path $OutDir "roadamp.exe"

    Write-Host "Building roadamp $Version → $out" -ForegroundColor Cyan

    $env:GOOS   = "windows"
    $env:GOARCH = "amd64"
    $env:CGO_ENABLED = "0"

    go build `
        -trimpath `
        -ldflags "-s -w -X main.Version=$Version" `
        -o $out `
        ./cmd/roadamp

    $size = [math]::Round((Get-Item $out).Length / 1MB, 2)
    Write-Host "Done  $out  (${size} MB)" -ForegroundColor Green
}
finally {
    Pop-Location
}