# Submodule Auto-Sync Setup Script
Write-Host "=== Setting up Submodule Auto-Sync ===" -ForegroundColor Cyan

# 1. Initialize submodules
Write-Host "`n[1/4] Initializing submodules..." -ForegroundColor Green
git submodule update --init --recursive --remote --merge

# 2. Configure Git
Write-Host "`n[2/4] Configuring Git..." -ForegroundColor Green
git config submodule.recurse false

# 3. Create hook content
$hookScript = "#!/bin/sh`n"
$hookScript += "echo 'Auto-updating submodule to latest...'`n"
$hookScript += "git submodule update --init --remote --merge`n`n"
$hookScript += "if ! git diff-index --quiet HEAD -- Assets/Design_SubModule 2>/dev/null; then`n"
$hookScript += "    echo ''`n"
$hookScript += "    echo 'Submodule updated! To commit:'`n"
$hookScript += "    echo '  git add Assets/Design_SubModule'`n"
$hookScript += "    echo '  git commit -m Update_submodule'`n"
$hookScript += "    echo '  git push'`n"
$hookScript += "    echo ''`n"
$hookScript += "fi`n"

# 4. Install multiple hooks to cover all pull scenarios
Write-Host "`n[3/4] Installing Git hooks..." -ForegroundColor Green

# post-merge: triggers after git pull (when there's a merge)
$hookScript | Out-File -FilePath ".git/hooks/post-merge" -Encoding ASCII -NoNewline
Write-Host "  - Installed post-merge hook" -ForegroundColor Gray

# post-checkout: triggers after git pull (when fast-forward)
$hookScript | Out-File -FilePath ".git/hooks/post-checkout" -Encoding ASCII -NoNewline
Write-Host "  - Installed post-checkout hook" -ForegroundColor Gray

# post-rewrite: triggers after git pull --rebase
$hookScript | Out-File -FilePath ".git/hooks/post-rewrite" -Encoding ASCII -NoNewline
Write-Host "  - Installed post-rewrite hook" -ForegroundColor Gray

# 5. Create git sync alias as backup
Write-Host "`n[4/4] Creating 'git sync' alias (backup method)..." -ForegroundColor Green
git config alias.sync "!git pull && git submodule update --init --remote --merge"

Write-Host "`n========================================" -ForegroundColor Cyan
Write-Host "Setup complete!" -ForegroundColor Green
Write-Host "========================================" -ForegroundColor Cyan
Write-Host "`nNow every 'git pull' will automatically update submodules!" -ForegroundColor Yellow
Write-Host "`nUsage:" -ForegroundColor Cyan
Write-Host "  git pull    <- Automatically updates submodules" -ForegroundColor White
Write-Host "  git sync    <- Also available as backup" -ForegroundColor Gray
Write-Host "`nTest it: Run 'git pull' now" -ForegroundColor Yellow