#!/usr/bin/env pwsh
# run_onchange_windows_install-packages.ps1.tmpl
# Installs all packages from packages/windows.json via winget.
# This script re-runs whenever packages/windows.json changes.
#
# Hash of packages file (forces re-run on change):
# {{ include "packages/windows.json" | sha256sum }}

$ErrorActionPreference = "Continue"

Write-Host "==> Installing packages via winget..." -ForegroundColor Cyan

# Use the chezmoi source packages file directly
$sourcePackages = "{{ .chezmoi.sourceDir }}/packages/windows.json"
$sourcePackages = [System.IO.Path]::GetFullPath($sourcePackages)

if (-not (Test-Path $sourcePackages)) {
    Write-Warning "packages/windows.json not found at: $sourcePackages"
    exit 1
}

$packageList = Get-Content $sourcePackages -Raw | ConvertFrom-Json
$packages = $packageList.Sources[0].Packages

$total = $packages.Count
$installed = 0
$skipped = 0
$failed = 0

foreach ($pkg in $packages) {
    $id = $pkg.PackageIdentifier
    Write-Host "  Checking $id..." -NoNewline

    # Check if already installed
    $check = winget list --id $id --exact --accept-source-agreements 2>$null | Select-String $id
    if ($check) {
        Write-Host " already installed" -ForegroundColor DarkGray
        $skipped++
        continue
    }

    # Install
    Write-Host " installing..." -NoNewline
    $result = winget install --id $id --exact --silent --accept-package-agreements --accept-source-agreements 2>&1
    if ($LASTEXITCODE -eq 0) {
        Write-Host " done" -ForegroundColor Green
        $installed++
    } else {
        Write-Host " FAILED (exit $LASTEXITCODE)" -ForegroundColor Red
        $failed++
    }
}

Write-Host ""
Write-Host "==> Package install complete: $installed installed, $skipped already present, $failed failed" -ForegroundColor Cyan

# =============================================================================
# Manual installs — tools not available on winget
# =============================================================================

$LocalBin = Join-Path $env:USERPROFILE ".local\bin"
if (-not (Test-Path $LocalBin)) {
    New-Item -ItemType Directory -Force $LocalBin | Out-Null
}

# Ensure ~/.local/bin is in the user PATH
$userPath = [System.Environment]::GetEnvironmentVariable("PATH", "User")
if ($userPath -notlike "*$LocalBin*") {
    [System.Environment]::SetEnvironmentVariable("PATH", "$userPath;$LocalBin", "User")
    $env:PATH = "$env:PATH;$LocalBin"
    Write-Host "    Added $LocalBin to user PATH." -ForegroundColor Green
}

function Install-GitHubBinary {
    param(
        [string]$Name,
        [string]$Repo,
        [string]$AssetPattern,
        [string]$BinaryName = "$Name.exe"
    )

    $BinPath = Join-Path $LocalBin $BinaryName
    if (Test-Path $BinPath) {
        Write-Host "  $Name already installed" -ForegroundColor DarkGray
        return
    }

    Write-Host "  Installing $Name..." -NoNewline
    try {
        $release = Invoke-RestMethod "https://api.github.com/repos/$Repo/releases/latest"
        $asset = $release.assets | Where-Object { $_.name -like $AssetPattern } | Select-Object -First 1
        if (-not $asset) { throw "No matching asset found for pattern: $AssetPattern" }

        $tmpZip = Join-Path $env:TEMP "$Name-$($release.tag_name).zip"
        $tmpDir = Join-Path $env:TEMP "$Name-$($release.tag_name)"
        Invoke-WebRequest -Uri $asset.browser_download_url -OutFile $tmpZip -UseBasicParsing
        Expand-Archive -Path $tmpZip -DestinationPath $tmpDir -Force
        $exe = Get-ChildItem -Recurse $tmpDir -Filter $BinaryName | Select-Object -First 1
        Copy-Item $exe.FullName $BinPath
        Remove-Item $tmpZip -Force
        Remove-Item $tmpDir -Recurse -Force
        Write-Host " done" -ForegroundColor Green
    } catch {
        Write-Host " FAILED: $_" -ForegroundColor Red
    }
}

Write-Host ""
Write-Host "==> Installing manual (non-winget) packages..." -ForegroundColor Cyan

# watchexec — https://github.com/watchexec/watchexec
Install-GitHubBinary -Name "watchexec" -Repo "watchexec/watchexec" -AssetPattern "*x86_64-pc-windows-msvc.zip"