sotf-character-select/Install.ps1

[CmdletBinding()]
param(
    [string]$GameDir
)

$ErrorActionPreference = 'Stop'

function Write-Step {
    param([string]$Text)
    Write-Host ''
    Write-Host $Text -ForegroundColor Cyan
}

function Find-GameDir {
    $steam = (Get-ItemProperty 'HKCU:\Software\Valve\Steam' -ErrorAction SilentlyContinue).SteamPath
    if (-not $steam) { return $null }
    $libs = @($steam)
    $vdf = Join-Path $steam 'steamapps\libraryfolders.vdf'
    if (Test-Path $vdf) {
        Select-String -Path $vdf -Pattern '"path"\s+"(.+?)"' -AllMatches |
            ForEach-Object { $_.Matches } |
            ForEach-Object { $libs += $_.Groups[1].Value.Replace('\\','\') }
    }
    foreach ($lib in $libs) {
        $candidate = Join-Path $lib 'steamapps\common\Sons Of The Forest'
        if (Test-Path (Join-Path $candidate 'SonsOfTheForest.exe')) { return $candidate }
    }
    return $null
}

function Get-ReleaseZip {
    param([string]$Repo, [string]$Pattern, [string]$OutFile)
    $release = Invoke-RestMethod "https://api.github.com/repos/$Repo/releases/latest" -Headers @{ 'User-Agent' = 'ps' }
    $asset = $release.assets | Where-Object { $_.name -match $Pattern } | Select-Object -First 1
    if (-not $asset) { throw "Could not find a download matching $Pattern in the latest $Repo release" }
    Write-Host "  version $($release.tag_name)"
    Invoke-WebRequest -Uri $asset.browser_download_url -OutFile $OutFile -UseBasicParsing
    return $asset.name
}

Write-Host ''
Write-Host '====================================' -ForegroundColor Green
Write-Host ' Character Select installer' -ForegroundColor Green
Write-Host '====================================' -ForegroundColor Green

Write-Step 'Looking for Sons of the Forest'
if (-not $GameDir) { $GameDir = Find-GameDir }
if (-not $GameDir -or -not (Test-Path (Join-Path $GameDir 'SonsOfTheForest.exe'))) {
    Write-Host '  Could not find the game automatically.' -ForegroundColor Yellow
    Write-Host '  Find the folder that contains SonsOfTheForest.exe and paste the path below.'
    $GameDir = (Read-Host '  Game folder').Trim('"')
    if (-not (Test-Path (Join-Path $GameDir 'SonsOfTheForest.exe'))) {
        throw "SonsOfTheForest.exe was not found in $GameDir"
    }
}
Write-Host "  found: $GameDir" -ForegroundColor Green

$needsFirstLaunch = $false

Write-Step 'Checking for RedLoader'
if (Test-Path (Join-Path $GameDir '_RedLoader\net6\SonsSdk.dll')) {
    Write-Host '  already installed' -ForegroundColor Green
}
else {
    Write-Host '  not installed, downloading it now'
    $rlZip = Join-Path $env:TEMP 'RedLoader.zip'
    Get-ReleaseZip -Repo 'ToniMacaroni/RedLoader' -Pattern '^RedLoader.*\.zip$' -OutFile $rlZip | Out-Null

    $rlStage = Join-Path $env:TEMP 'redloader-stage'
    if (Test-Path $rlStage) { Remove-Item $rlStage -Recurse -Force }
    Expand-Archive -Path $rlZip -DestinationPath $rlStage -Force
    Copy-Item -Path (Join-Path $rlStage '*') -Destination $GameDir -Recurse -Force
    Remove-Item $rlZip -Force -ErrorAction SilentlyContinue
    Remove-Item $rlStage -Recurse -Force -ErrorAction SilentlyContinue
    Write-Host '  installed' -ForegroundColor Green
    $needsFirstLaunch = $true
}

Write-Step 'Downloading Character Select'
$modZip = Join-Path $env:TEMP 'CharacterSelect.zip'
Get-ReleaseZip -Repo 'JustinOros/sotf-character-select' -Pattern '^CharacterSelect\.zip$' -OutFile $modZip | Out-Null

Write-Step 'Installing Character Select'
$modsDir = Join-Path $GameDir 'Mods'
New-Item -ItemType Directory -Force -Path $modsDir | Out-Null
Remove-Item (Join-Path $modsDir 'CharacterSelect.dll') -Force -ErrorAction SilentlyContinue
Remove-Item (Join-Path $modsDir 'CharacterSelect') -Recurse -Force -ErrorAction SilentlyContinue
Expand-Archive -Path $modZip -DestinationPath $modsDir -Force
Remove-Item $modZip -Force -ErrorAction SilentlyContinue

if (-not (Test-Path (Join-Path $modsDir 'CharacterSelect.dll'))) {
    throw 'Something went wrong, CharacterSelect.dll is not in the Mods folder'
}
if (-not (Test-Path (Join-Path $modsDir 'CharacterSelect\manifest.json'))) {
    throw 'Something went wrong, manifest.json is not in the Mods\CharacterSelect folder'
}
Write-Host '  installed' -ForegroundColor Green

Write-Host ''
Write-Host '====================================' -ForegroundColor Green
Write-Host ' Done' -ForegroundColor Green
Write-Host '====================================' -ForegroundColor Green
Write-Host ''

if ($needsFirstLaunch) {
    Write-Host 'RedLoader was installed for the first time, so the next time you start'
    Write-Host 'the game it will take a few extra minutes to get ready. That is normal.'
    Write-Host ''
}

Write-Host 'Start Sons of the Forest, then:'
Write-Host '  1. Check that MODS appears on the main menu and lists CharacterSelect'
Write-Host '  2. Load into a game'
Write-Host '  3. Press F9 to change your appearance'
Write-Host ''