# kb_inbox_sweep_v1.0.ps1 - D?place les AUTO_*.txt de updates\inbox\kb vers updates\archive\kb\YYYY\MM
# PS 5.1-safe, UTF-8 sans BOM, CRLF, non interactif par d?faut (Preview) ; utiliser -Move pour appliquer.
param(
  [Parameter(Mandatory=$true)][string]$Root,
  [switch]$Move,
  [switch]$NoPrompt
)
try{ [Console]::OutputEncoding = New-Object System.Text.UTF8Encoding($false) }catch{}

function Exists([string]$p){ return (-not [string]::IsNullOrWhiteSpace($p)) -and (Test-Path -LiteralPath $p) }
function Sha256([string]$p){ try{ return (Get-FileHash -LiteralPath $p -Algorithm SHA256).Hash.ToUpperInvariant() }catch{ return '' } }

$inbox = Join-Path $Root 'updates\inbox\kb'
$archR = Join-Path $Root 'updates\archive\kb'
if(-not (Exists $inbox)){ Write-Host ("[INFO] inbox introuvable: {0}" -f $inbox); exit 0 }

$files = Get-ChildItem -LiteralPath $inbox -Filter 'AUTO_*.txt' -ErrorAction SilentlyContinue
$count = @($files).Count
Write-Host ("== KB INBOX SWEEP v1.0 ==  Inbox={0}  Count={1}" -f $inbox,$count)

if($count -eq 0){ Write-Host "[INFO] Rien a deplacer."; exit 0 }

$plan = @()
foreach($f in $files){
  $sha = Sha256 $f.FullName
  $y = (Get-Date).ToString('yyyy'); $m=(Get-Date).ToString('MM')
  $destDir = Join-Path (Join-Path $archR $y) $m
  $nameNoExt = [IO.Path]::GetFileNameWithoutExtension($f.Name)
  $destName = ("{0}__sha_{1}.txt" -f $nameNoExt, ($sha.Substring(0,8)))
  $destPath = Join-Path $destDir $destName
  $plan += [pscustomobject]@{ Src=$f.FullName; Dest=$destPath; Sha=$sha; Size=$f.Length }
}

# Preview
foreach($p in $plan){ Write-Host ("MOVE -> {0}  ->  {1}  (sha={2} size={3})" -f $p.Src,$p.Dest,$p.Sha,$p.Size) }

if(-not $Move){
  Write-Host "[PREVIEW] Utilise -Move pour appliquer."
  exit 0
}

if(-not $NoPrompt){
  $resp = Read-Host "Confirmer le deplacement ? (O/N)"
  if($resp -notmatch '^[OoYy]'){ Write-Host "[ABORT] no move."; exit 0 }
}

# Apply
foreach($p in $plan){
  $d = [IO.Path]::GetDirectoryName($p.Dest)
  if(-not (Test-Path -LiteralPath $d)){ New-Item -ItemType Directory -Force -Path $d | Out-Null }
  # Eviter collision
  $dest = $p.Dest
  $idx = 1
  while(Test-Path -LiteralPath $dest){
    $dest = $p.Dest.Replace('.txt', ("_{0}.txt" -f $idx))
    $idx++
  }
  try{
    Move-Item -LiteralPath $p.Src -Destination $dest -Force
    Write-Host ("[OK] {0} -> {1}" -f $p.Src,$dest)
  }catch{
    Write-Host ("[ERR] move failed: {0} -> {1} : {2}" -f $p.Src,$dest,$_.Exception.Message)
    exit 3
  }
}

# Log
try{
  $logDir = $archR
  if(-not (Test-Path -LiteralPath $logDir)){ New-Item -ItemType Directory -Force -Path $logDir | Out-Null }
  $log = Join-Path $logDir 'inbox_sweep_log.txt'
  $lines = @()
  $ts = [DateTime]::Now.ToString('s')
  foreach($p in $plan){
    $lines += ("{0} MOVE {1} -> {2} sha={3} size={4}" -f $ts,$p.Src,$p.Dest,$p.Sha,$p.Size)
  }
  $enc = New-Object System.Text.UTF8Encoding($false)
  $content = ($lines -join "`r`n") + "`r`n"
  [IO.File]::AppendAllText($log,$content,$enc)
}catch{}
Write-Host "[DONE] inbox sweep."
exit 0