# GoMag Vending - Update Script
# Ruleaza interactiv:  .\update.ps1
# Ruleaza din scheduler: .\update.ps1 -Silent

param(
    [switch]$Silent
)

$RepoPath = "C:\gomag-vending"
$TokenFile = Join-Path $RepoPath ".gittoken"
$LogFile = Join-Path $RepoPath "update.log"

function Log($msg, $color = "White") {
    $ts = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
    if ($Silent) {
        Add-Content -Path $LogFile -Value "$ts  $msg"
    } else {
        Write-Host $msg -ForegroundColor $color
    }
}

# Citire token
if (-not (Test-Path $TokenFile)) {
    Log "EROARE: $TokenFile nu exista!" "Red"
    exit 1
}
$token = (Get-Content $TokenFile -Raw).Trim()

# Safe directory (necesar cand ruleaza ca SYSTEM)
git config --global --add safe.directory $RepoPath 2>$null

# Fetch remote
Set-Location $RepoPath
$fetchUrl = "https://gomag-vending:$token@gitea.romfast.ro/romfast/gomag-vending.git"
$env:GIT_TERMINAL_PROMPT = "0"
$fetchOutput = & git -c credential.helper="" fetch $fetchUrl main 2>&1
$fetchExit = $LASTEXITCODE
if ($fetchExit -ne 0) {
    Log "EROARE: git fetch esuat (exit=$fetchExit): $fetchOutput" "Red"
    exit 1
}

# Compara local vs remote
$local = git rev-parse HEAD
$remote = git rev-parse FETCH_HEAD

if ($local -eq $remote) {
    Log "Nicio actualizare disponibila." "Gray"
    exit 0
}

# Exista update-uri
$commits = git log --oneline "$local..$remote"
Log "==> Update disponibil ($($commits.Count) commit-uri noi)" "Cyan"
if (-not $Silent) {
    $commits | ForEach-Object { Write-Host "    $_" -ForegroundColor DarkGray }
}

# Git pull
Log "==> Git pull..." "Cyan"
$pullOutput = & git -c credential.helper="" pull $fetchUrl 2>&1
$pullExit = $LASTEXITCODE
if ($pullExit -ne 0) {
    Log "EROARE: git pull esuat (exit=$pullExit): $pullOutput" "Red"
    exit 1
}

# Pip install (daca s-au schimbat dependintele)
Log "==> Verificare dependinte..." "Cyan"
& "$RepoPath\venv\Scripts\pip.exe" install -r "$RepoPath\api\requirements.txt" --quiet 2>&1 | Out-Null

# Restart serviciu
Log "==> Restart GoMagVending..." "Cyan"
nssm restart GoMagVending 2>&1 | Out-Null

Start-Sleep -Seconds 3
$status = (nssm status GoMagVending 2>&1) -replace '\0',''
Log "Serviciu: $status" "Green"
Log "Update complet!" "Green"