# =============================================================================
#  scan_cleanup_v1.0.ps1
#  Verze:  1.0
#  Datum:  2026-06-15
#  Autor:  Vladimír Buzalka (s asistencí Claude)
#  Popis:  READ-ONLY skener volného místa na disku pro účet bez admin práv.
#          NIC NEMAŽE. Pouze proskenuje typická "user-space" místa, kde lze
#          uklízet bez administrátorských oprávnění, a vypíše přehled
#          seřazený podle velikosti + návrhy co smazat. Na konci ukáže
#          přesné příkazy pro skutečné smazání (musíš je spustit ručně).
#
#  Spuštění (z PowerShellu, NEpotřebuje admina):
#     powershell -ExecutionPolicy Bypass -File .\scan_cleanup_v1.0.ps1
#  Volitelně uložení reportu do souboru:
#     powershell -ExecutionPolicy Bypass -File .\scan_cleanup_v1.0.ps1 *> report.txt
# =============================================================================

$ErrorActionPreference = 'SilentlyContinue'
$ProgressPreference    = 'SilentlyContinue'

function Format-Size {
    param([long]$Bytes)
    if ($Bytes -ge 1GB) { return ('{0:N2} GB' -f ($Bytes / 1GB)) }
    if ($Bytes -ge 1MB) { return ('{0:N1} MB' -f ($Bytes / 1MB)) }
    if ($Bytes -ge 1KB) { return ('{0:N0} KB' -f ($Bytes / 1KB)) }
    return "$Bytes B"
}

function Get-FolderSize {
    param([string]$Path)
    if (-not (Test-Path -LiteralPath $Path)) { return $null }
    $files = Get-ChildItem -LiteralPath $Path -Recurse -Force -File -ErrorAction SilentlyContinue
    if (-not $files) { return [pscustomobject]@{ Bytes = 0; Count = 0 } }
    $sum = ($files | Measure-Object -Property Length -Sum)
    return [pscustomobject]@{
        Bytes = [long]($sum.Sum)
        Count = [int]$sum.Count
    }
}

# --- Hlavička / info o disku -------------------------------------------------
Write-Host ""
Write-Host "===========================================================" -ForegroundColor Cyan
Write-Host "  SKEN MOZNOSTI UKLIDU DISKU (read-only, bez admina)" -ForegroundColor Cyan
Write-Host "  Pocitac: $env:COMPUTERNAME   Uzivatel: $env:USERNAME" -ForegroundColor Cyan
Write-Host "  Cas: $(Get-Date -Format 'yyyy-MM-dd HH:mm:ss')" -ForegroundColor Cyan
Write-Host "===========================================================" -ForegroundColor Cyan
Write-Host ""

# Volné místo na systémovém disku
$sysDrive = (Get-Item $env:SystemDrive)
$drive = Get-PSDrive -Name $sysDrive.Name.TrimEnd(':') -ErrorAction SilentlyContinue
if ($drive) {
    $free  = $drive.Free
    $used  = $drive.Used
    $total = $free + $used
    Write-Host ("Disk {0}  celkem: {1}   volne: {2}   obsazeno: {3}" -f `
        $env:SystemDrive, (Format-Size $total), (Format-Size $free), (Format-Size $used)) -ForegroundColor Yellow
    Write-Host ""
}

# --- Kandidatske lokace (vse v ramci uzivatelskeho profilu = bez admina) -----
# Bezpecne smazatelne (cache / temp / koš)
$candidates = @(
    @{ Name = 'Uzivatelsky TEMP';                        Path = $env:TEMP;                                                              Safe = $true  }
    @{ Name = 'Windows Temp (user)';                     Path = (Join-Path $env:LOCALAPPDATA 'Temp');                                   Safe = $true  }
    @{ Name = 'INetCache (IE/Win)';                      Path = (Join-Path $env:LOCALAPPDATA 'Microsoft\Windows\INetCache');            Safe = $true  }
    @{ Name = 'WER - chybove reporty';                   Path = (Join-Path $env:LOCALAPPDATA 'Microsoft\Windows\WER');                  Safe = $true  }
    @{ Name = 'Explorer thumbnail cache';                Path = (Join-Path $env:LOCALAPPDATA 'Microsoft\Windows\Explorer');             Safe = $true  }
    @{ Name = 'Chrome - Cache';                          Path = (Join-Path $env:LOCALAPPDATA 'Google\Chrome\User Data\Default\Cache');  Safe = $true  }
    @{ Name = 'Chrome - Code Cache';                     Path = (Join-Path $env:LOCALAPPDATA 'Google\Chrome\User Data\Default\Code Cache'); Safe = $true }
    @{ Name = 'Chrome - GPUCache';                       Path = (Join-Path $env:LOCALAPPDATA 'Google\Chrome\User Data\Default\GPUCache'); Safe = $true }
    @{ Name = 'Edge - Cache';                            Path = (Join-Path $env:LOCALAPPDATA 'Microsoft\Edge\User Data\Default\Cache');  Safe = $true }
    @{ Name = 'Edge - Code Cache';                       Path = (Join-Path $env:LOCALAPPDATA 'Microsoft\Edge\User Data\Default\Code Cache'); Safe = $true }
    @{ Name = 'Firefox - cache2';                        Path = (Join-Path $env:LOCALAPPDATA 'Mozilla\Firefox\Profiles');               Safe = $true  }
    @{ Name = 'Teams - cache (classic)';                 Path = (Join-Path $env:APPDATA 'Microsoft\Teams');                             Safe = $true  }
    @{ Name = 'Teams - cache (new)';                     Path = (Join-Path $env:LOCALAPPDATA 'Packages\MSTeams_8wekyb3d8bbwe\LocalCache'); Safe = $true }
    @{ Name = 'Office - dokumentova cache';              Path = (Join-Path $env:LOCALAPPDATA 'Microsoft\Office\16.0\OfficeFileCache');   Safe = $true }
    @{ Name = 'pip cache (Python)';                      Path = (Join-Path $env:LOCALAPPDATA 'pip\Cache');                              Safe = $true  }
    @{ Name = 'Playwright browsers cache';               Path = (Join-Path $env:LOCALAPPDATA 'ms-playwright');                          Safe = $true  }
    @{ Name = 'npm cache';                               Path = (Join-Path $env:LOCALAPPDATA 'npm-cache');                              Safe = $true  }
    @{ Name = 'NuGet cache';                             Path = (Join-Path $env:USERPROFILE '.nuget\packages');                         Safe = $true  }
    @{ Name = 'Spotify - Storage';                       Path = (Join-Path $env:LOCALAPPDATA 'Spotify\Storage');                        Safe = $true  }
    @{ Name = 'CrashDumps';                              Path = (Join-Path $env:LOCALAPPDATA 'CrashDumps');                             Safe = $true  }
)

# Zkontrolovat ale NEMAZAT automaticky (uzivatel musi posoudit obsah)
$review = @(
    @{ Name = 'Slozka Downloads (stahovani)';            Path = (Join-Path $env:USERPROFILE 'Downloads') }
    @{ Name = 'Plocha (Desktop)';                        Path = (Join-Path $env:USERPROFILE 'Desktop') }
    @{ Name = 'Dokumenty';                               Path = (Join-Path $env:USERPROFILE 'Documents') }
    @{ Name = 'Kos (Recycle Bin)';                       Path = (Join-Path $env:SystemDrive '\$Recycle.Bin') }
)

Write-Host "--- BEZPECNE SMAZATELNE (cache / temp) --------------------" -ForegroundColor Green
$results = @()
foreach ($c in $candidates) {
    $info = Get-FolderSize -Path $c.Path
    if ($info -and $info.Bytes -gt 0) {
        $results += [pscustomobject]@{
            Name  = $c.Name
            Path  = $c.Path
            Bytes = $info.Bytes
            Count = $info.Count
        }
    }
}

$totalSafe = 0
foreach ($r in ($results | Sort-Object Bytes -Descending)) {
    $totalSafe += $r.Bytes
    Write-Host ("  {0,10}  {1,7} souboru   {2}" -f (Format-Size $r.Bytes), $r.Count, $r.Name)
    Write-Host ("                                  -> {0}" -f $r.Path) -ForegroundColor DarkGray
}
if ($results.Count -eq 0) { Write-Host "  (nic vyznamneho nenalezeno)" -ForegroundColor DarkGray }

Write-Host ""
Write-Host ("  >>> POTENCIAL CACHE/TEMP CELKEM: {0}" -f (Format-Size $totalSafe)) -ForegroundColor Green
Write-Host ""

Write-Host "--- K RUCNI KONTROLE (NEMAZAT automaticky) ----------------" -ForegroundColor Yellow
foreach ($c in ($review)) {
    $info = Get-FolderSize -Path $c.Path
    if ($info) {
        Write-Host ("  {0,10}  {1,7} souboru   {2}" -f (Format-Size $info.Bytes), $info.Count, $c.Name)
        Write-Host ("                                  -> {0}" -f $c.Path) -ForegroundColor DarkGray
    }
}
Write-Host ""

# --- TOP velke soubory v profilu (>100 MB) -----------------------------------
Write-Host "--- 20 NEJVETSICH SOUBORU V PROFILU (>100 MB) -------------" -ForegroundColor Magenta
$big = Get-ChildItem -LiteralPath $env:USERPROFILE -Recurse -Force -File -ErrorAction SilentlyContinue |
    Where-Object { $_.Length -gt 100MB } |
    Sort-Object Length -Descending |
    Select-Object -First 20
if ($big) {
    foreach ($f in $big) {
        Write-Host ("  {0,10}  {1}" -f (Format-Size $f.Length), $f.FullName)
    }
} else {
    Write-Host "  (zadne soubory nad 100 MB)" -ForegroundColor DarkGray
}
Write-Host ""

# --- Navod na skutecne smazani ----------------------------------------------
Write-Host "===========================================================" -ForegroundColor Cyan
Write-Host "  JAK SKUTECNE SMAZAT (spustit RUCNE, az po kontrole):" -ForegroundColor Cyan
Write-Host "===========================================================" -ForegroundColor Cyan
Write-Host @"
  # Vyprazdneni kose:
  Clear-RecycleBin -Force

  # Smazani obsahu uzivatelskeho TEMP (zavri aplikace; nektere zamcene soubory zustanou):
  Get-ChildItem -LiteralPath `$env:TEMP -Recurse -Force -ErrorAction SilentlyContinue |
      Remove-Item -Recurse -Force -ErrorAction SilentlyContinue

  # Smazani konkretni cache slozky (priklad Chrome) - prohlizec MUSI byt zavreny:
  Remove-Item -LiteralPath "`$env:LOCALAPPDATA\Google\Chrome\User Data\Default\Cache\*" -Recurse -Force -ErrorAction SilentlyContinue

  # Spravce mista ve Windows (bez admina): Nastaveni > System > Uloziste
"@ -ForegroundColor Gray
Write-Host ""
Write-Host "Hotovo. Skript NIC nesmazal - jen vypsal prehled." -ForegroundColor Green