# watch-vizion-repos.ps1
# Watches VizionAI-Trading-Repo for new repo folders and auto-creates
# NTFS junctions in Experts\Shared Projects.
# Registered as a Task Scheduler job — runs at user logon, stays in background.

$base     = "C:\Users\sahrk\AppData\Roaming\MetaQuotes\Terminal\FB9A56D617EDDDFE29EE54EBEFFE96C1\MQL5"
$repoRoot = "$base\Shared Projects\VizionAI-Trading\VizionAI-Trading-Repo"
$linkRoot = "$base\Experts\Shared Projects"
$logFile  = "$base\Shared Projects\VizionAI-Trading\watch-vizion-repos.log"

function Write-Log($msg) {
    $ts = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
    "[$ts] $msg" | Tee-Object -FilePath $logFile -Append | Out-Null
}

function Sync-Junctions {
    if (-not (Test-Path $linkRoot)) {
        New-Item -ItemType Directory -Path $linkRoot -Force | Out-Null
    }

    $repos = Get-ChildItem -Path $repoRoot -Directory -ErrorAction SilentlyContinue
    foreach ($repo in $repos) {
        $linkPath   = "$linkRoot\$($repo.Name)"
        $targetPath = $repo.FullName

        if (Test-Path $linkPath) {
            $item = Get-Item $linkPath -Force
            if ($item.Attributes -band [System.IO.FileAttributes]::ReparsePoint) {
                continue  # Junction already exists
            } else {
                Remove-Item -Path $linkPath -Recurse -Force
                Write-Log "Removed stale folder: $($repo.Name)"
            }
        }

        cmd /c "mklink /J `"$linkPath`" `"$targetPath`"" | Out-Null
        Write-Log "Created junction: $($repo.Name)"
    }
}

# Run once on startup to catch anything added while the watcher was off
Write-Log "Watcher started. Running initial sync..."
Sync-Junctions

# Set up FileSystemWatcher on the repo root
$watcher = New-Object System.IO.FileSystemWatcher
$watcher.Path                  = $repoRoot
$watcher.NotifyFilter          = [System.IO.NotifyFilters]::DirectoryName
$watcher.IncludeSubdirectories = $false
$watcher.EnableRaisingEvents   = $true

$action = {
    $name = $Event.SourceEventArgs.Name
    Start-Sleep -Milliseconds 500   # brief wait for git to finish creating the folder
    $base2     = "C:\Users\sahrk\AppData\Roaming\MetaQuotes\Terminal\FB9A56D617EDDDFE29EE54EBEFFE96C1\MQL5"
    $linkRoot2 = "$base2\Experts\Shared Projects"
    $target    = $Event.SourceEventArgs.FullPath
    $link      = "$linkRoot2\$name"
    if (-not (Test-Path $link)) {
        cmd /c "mklink /J `"$link`" `"$target`"" | Out-Null
        $ts = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
        "[$ts] Auto-created junction: $name" | Out-File -FilePath "$base2\Shared Projects\VizionAI-Trading\watch-vizion-repos.log" -Append
    }
}

Register-ObjectEvent -InputObject $watcher -EventName Created -SourceIdentifier "VizionRepoWatcher" -Action $action

Write-Log "Watching $repoRoot for new repos..."

# Keep the script alive indefinitely
try {
    while ($true) { Start-Sleep -Seconds 30 }
} finally {
    Unregister-Event -SourceIdentifier "VizionRepoWatcher" -ErrorAction SilentlyContinue
    $watcher.Dispose()
    Write-Log "Watcher stopped."
}