#Requires -Version 5.1
<#
Installer AdHoc Backup (GUI) - v1.3
#>

Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing
Add-Type -AssemblyName System.IO.Compression.FileSystem

$ErrorActionPreference = 'Stop'

function New-Point([object]$x,[object]$y) { try { return New-Object System.Drawing.Point ([int]$x), ([int]$y) } catch { return [System.Drawing.Point]::new([int]$x, [int]$y) } }
function New-Size([object]$w,[object]$h) { try { return New-Object System.Drawing.Size ([int]$w), ([int]$h) } catch { return [System.Drawing.Size]::new([int]$w, [int]$h) } }
function Set-Loc($ctrl,[object]$x,[object]$y){ $ctrl.Location = New-Point $x $y }
function Set-Sz($ctrl,[object]$w,[object]$h){ $ctrl.Size      = New-Size $w $h }

function New-LogTimestamp { (Get-Date).ToString('yyyy-MM-dd HH:mm:ss') }
$global:LogFile    = $null
$global:LogTextBox = $null
function Write-Log { param([string]$Message,[ValidateSet('INFO','ERR','WARN')] [string]$Level = 'INFO'); $line = "[{0}][{1}] {2}" -f (New-LogTimestamp), $Level, $Message; if ($global:LogTextBox) { try { $global:LogTextBox.AppendText("$line`r`n") } catch {} }; if ($global:LogFile) { try { Add-Content -Path $global:LogFile -Value $line -Encoding UTF8 } catch {} }; Write-Host $line }

function Ensure-Dir { param([string]$Path) if (-not (Test-Path -LiteralPath $Path)) { New-Item -ItemType Directory -Path $Path | Out-Null; Write-Log "Cartella creata: $Path" } else { Write-Log "Cartella già presente: $Path" } }
function Start-Download { param([string]$Url,[string]$Dest) Write-Log "Scarico: $Url"; Write-Log "Destinazione: $Dest"; [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 -bor [Net.SecurityProtocolType]::Tls11 -bor [Net.SecurityProtocolType]::Tls; try { Invoke-WebRequest -Uri $Url -OutFile $Dest -ErrorAction Stop; Write-Log "Download completato."; return $true } catch { Write-Log "Invoke-WebRequest fallito: $($_.Exception.Message)" 'WARN'; try { (New-Object System.Net.WebClient).DownloadFile($Url, $Dest); Write-Log "Download completato con WebClient (fallback)."; return $true } catch { Write-Log "Download fallito: $($_.Exception.Message)" 'ERR'; return $false } } }
function Expand-Zip { param([string]$ZipPath,[string]$DestDir) Write-Log "Estrazione ZIP: $ZipPath -> $DestDir"; $zip=$null; try { $zip=[System.IO.Compression.ZipFile]::OpenRead($ZipPath); foreach($entry in $zip.Entries){ $targetPath=Join-Path $DestDir $entry.FullName; $targetDir=Split-Path $targetPath -Parent; if([string]::IsNullOrEmpty($entry.Name)){ Ensure-Dir $targetPath } else { Ensure-Dir $targetDir; [System.IO.Compression.ZipFileExtensions]::ExtractToFile($entry,$targetPath,$true) } } } finally { if($zip){ $zip.Dispose() } } }
function New-DailyOrWeeklyTask { param([string]$TaskName,[string]$ScriptPath,[string]$ConfigPath,[DateTime]$Time,[ValidateSet('DAILY','WEEKLY')] [string]$Schedule='DAILY',[ValidateSet('MON','TUE','WED','THU','FRI','SAT','SUN')] [string]$Day='MON',[switch]$Quiet) $psArgs=@('-NoProfile','-ExecutionPolicy','Bypass','-File',('"{0}"' -f $ScriptPath),'-Config',('"{0}"' -f $ConfigPath)); if($Quiet){$psArgs+='/Quiet'}; $tr='powershell.exe '+($psArgs -join ' '); $st=$Time.ToString('HH:mm'); $cmd=@('/Create','/SC',$Schedule,'/TN',('"{0}"' -f $TaskName),'/TR',('"{0}"' -f $tr),'/ST',$st,'/RL','HIGHEST','/F'); if($Schedule -eq 'WEEKLY'){$cmd+="/D";$cmd+=$Day}; Write-Log "Creo/aggiorno attività pianificata: $TaskName ($Schedule) alle $st"; try { schtasks.exe @cmd | Out-Null; Write-Log "Attività pianificata impostata."; return $true } catch { Write-Log "Creazione attività fallita: $($_.Exception.Message)" 'ERR'; return $false } }

function Ensure-ToolsLayout { param([string]$Root) $binRoot=Join-Path $Root 'bin'; $confRoot=Join-Path $binRoot 'conf'; $rcloneDir=Join-Path $binRoot 'RClone'; $sevenDir=Join-Path $binRoot '7Zip'; Ensure-Dir $binRoot; Ensure-Dir $confRoot; Ensure-Dir $rcloneDir; Ensure-Dir $sevenDir; return @{ Bin=$binRoot; Conf=$confRoot; RClone=$rcloneDir; SevenZip=$sevenDir } }
function Ensure-RcloneExe { param([string]$RcloneDir) $exe=Join-Path $RcloneDir 'rclone.exe'; if(-not (Test-Path -LiteralPath $exe)){ $zip=Join-Path $RcloneDir 'rclone-current-windows-amd64.zip'; if(Start-Download -Url 'https://downloads.rclone.org/rclone-current-windows-amd64.zip' -Dest $zip){ Expand-Zip -ZipPath $zip -DestDir $RcloneDir; $found=Get-ChildItem -LiteralPath $RcloneDir -Recurse -Filter 'rclone.exe' | Select-Object -First 1; if($found){ Copy-Item -LiteralPath $found.FullName -Destination $exe -Force }; Get-ChildItem -LiteralPath $RcloneDir -Directory | Where-Object { $_.Name -like 'rclone-*' } | Remove-Item -Recurse -Force -ErrorAction SilentlyContinue; Remove-Item -LiteralPath $zip -Force -ErrorAction SilentlyContinue } }; return $exe }

$global:ChildPids = New-Object System.Collections.ArrayList
function Track-Child($p){ if($p -and $p.Id){ [void]$global:ChildPids.Add($p.Id) } }

$global:ConfUi = @{ Map=$null; Order=@(); Controls=@{}; SourceLines=@(); TempPath=(Join-Path $env:TEMP 'adhoc_backup_conf_preview.conf') }
function Is-BoolString([string]$s){ if($null -eq $s){ return $false }; switch($s.Trim().ToLowerInvariant()){ 'true'{1};'false'{1};'1'{1};'0'{1};'yes'{1};'no'{1};'y'{1};'n'{1}; default{0} } }
function Parse-BackupConf { param([string]$Path) $order=New-Object System.Collections.ArrayList; $map=[ordered]@{}; $lines=Get-Content -LiteralPath $Path -ErrorAction Stop; foreach($line in $lines){ $trim=$line.Trim(); if($trim -eq '' -or $trim.StartsWith('#') -or $trim.StartsWith(';')){ [void]$order.Add(@{type='comment';text=$line}); continue }; $idx=$trim.IndexOf('='); if($idx -lt 1){ [void]$order.Add(@{type='raw';text=$line}); continue }; $k=$trim.Substring(0,$idx).Trim(); $v=$trim.Substring($idx+1).Trim(); $v=($v -replace '(\s+)[#;].*$','').Trim(); if(($v.StartsWith('"') -and $v.EndsWith('"')) -or ($v.StartsWith("'") -and $v.EndsWith("'"))){ $v=$v.Substring(1,$v.Length-2) }; $map[$k]=$v; [void]$order.Add(@{type='kv';key=$k}) }; $global:ConfUi.Map=$map; $global:ConfUi.Order=$order; $global:ConfUi.SourceLines=$lines }
function Save-BackupConf { param([string]$Path) $out=New-Object System.Collections.Generic.List[string]; foreach($entry in $global:ConfUi.Order){ if($entry.type -eq 'kv'){ $k=$entry.key; $v=$global:ConfUi.Map[$k]; if(Is-BoolString $v){ $v=([string]$v).Trim().ToLowerInvariant(); if($v -in @('1','yes','y')){$v='true'} elseif($v -in @('0','no','n')){$v='false'} }; $out.Add("$k=$v") } else { $out.Add($entry.text) } }; foreach($k in $global:ConfUi.Map.Keys){ if(-not ($global:ConfUi.Order | Where-Object { $_.type -eq 'kv' -and $_.key -eq $k })){ $out.Add("$k=$($global:ConfUi.Map[$k])") } }; Set-Content -LiteralPath $Path -Value $out -Encoding UTF8 }

$defaultInstall='C:\polo\scripts'
$defaultScriptUrl='https://gitea.poloinformatico.it/Mattia/Backup-AdHoc/raw/branch/main/AdHoc-Backup.ps1'
$defaultConfUrl='https://gitea.poloinformatico.it/Mattia/Backup-AdHoc/raw/branch/main/backup.conf'

$form = New-Object System.Windows.Forms.Form
$form.Text = 'Installer AdHoc Backup'
$form.StartPosition = 'CenterScreen'
$form.MaximizeBox = $true
$form.FormBorderStyle = 'FixedDialog'
Set-Sz $form 900 860

$lblInstall = New-Object System.Windows.Forms.Label; $lblInstall.Text = 'Cartella di installazione'; Set-Loc $lblInstall 10 12; Set-Sz $lblInstall 180 20; $form.Controls.Add($lblInstall)
$txtInstall = New-Object System.Windows.Forms.TextBox; Set-Loc $txtInstall 10 32; Set-Sz $txtInstall 760 22; $txtInstall.Text = $defaultInstall; $form.Controls.Add($txtInstall)
$btnBrowse = New-Object System.Windows.Forms.Button; $btnBrowse.Text = 'Scegli...'; Set-Loc $btnBrowse 780 30; Set-Sz $btnBrowse 90 26; $form.Controls.Add($btnBrowse)

$lblScriptUrl = New-Object System.Windows.Forms.Label; $lblScriptUrl.Text = 'Script URL'; Set-Loc $lblScriptUrl 10 64; Set-Sz $lblScriptUrl 150 20; $form.Controls.Add($lblScriptUrl)
$txtScriptUrl = New-Object System.Windows.Forms.TextBox; Set-Loc $txtScriptUrl 10 84; Set-Sz $txtScriptUrl 860 22; $txtScriptUrl.Text = $defaultScriptUrl; $form.Controls.Add($txtScriptUrl)

$lblConfUrl = New-Object System.Windows.Forms.Label; $lblConfUrl.Text = 'Config URL'; Set-Loc $lblConfUrl 10 116; Set-Sz $lblConfUrl 150 20; $form.Controls.Add($lblConfUrl)
$txtConfUrl = New-Object System.Windows.Forms.TextBox; Set-Loc $txtConfUrl 10 136; Set-Sz $txtConfUrl 860 22; $txtConfUrl.Text = $defaultConfUrl; $form.Controls.Add($txtConfUrl)

$grpOptions = New-Object System.Windows.Forms.GroupBox; $grpOptions.Text = 'Opzioni'; Set-Loc $grpOptions 10 170; Set-Sz $grpOptions 340 120; $form.Controls.Add($grpOptions)
$chkForceConf = New-Object System.Windows.Forms.CheckBox; $chkForceConf.Text='Sovrascrivi config esistente (ForceConfig)'; Set-Loc $chkForceConf 10 20; Set-Sz $chkForceConf 300 22; $grpOptions.Controls.Add($chkForceConf)
$chkNoRun = New-Object System.Windows.Forms.CheckBox; $chkNoRun.Text='Non avviare il backup ora (NoRun)'; Set-Loc $chkNoRun 10 45; Set-Sz $chkNoRun 280 22; $grpOptions.Controls.Add($chkNoRun)
$chkQuiet = New-Object System.Windows.Forms.CheckBox; $chkQuiet.Text='Modalità silenziosa (Quiet)'; Set-Loc $chkQuiet 10 70; Set-Sz $chkQuiet 220 22; $grpOptions.Controls.Add($chkQuiet)

$grpSched = New-Object System.Windows.Forms.GroupBox; $grpSched.Text='Schedulazione'; Set-Loc $grpSched 360 170; Set-Sz $grpSched 510 160; $form.Controls.Add($grpSched)
$chkSchedule = New-Object System.Windows.Forms.CheckBox; $chkSchedule.Text='Crea attività pianificata'; Set-Loc $chkSchedule 10 20; Set-Sz $chkSchedule 200 22; $chkSchedule.Checked=$true; $grpSched.Controls.Add($chkSchedule)
$lblFreq = New-Object System.Windows.Forms.Label; $lblFreq.Text='Frequenza:'; Set-Loc $lblFreq 20 50; Set-Sz $lblFreq 80 22; $grpSched.Controls.Add($lblFreq)
$cmbFreq = New-Object System.Windows.Forms.ComboBox; $cmbFreq.DropDownStyle='DropDownList'; [void]$cmbFreq.Items.Add('Giornaliera'); [void]$cmbFreq.Items.Add('Settimanale'); $cmbFreq.SelectedIndex=0; Set-Loc $cmbFreq 100 48; Set-Sz $cmbFreq 120 22; $grpSched.Controls.Add($cmbFreq)
$lblDOW = New-Object System.Windows.Forms.Label; $lblDOW.Text='Giorno:'; Set-Loc $lblDOW 240 50; Set-Sz $lblDOW 60 22; $grpSched.Controls.Add($lblDOW)
$cmbDOW = New-Object System.Windows.Forms.ComboBox; $cmbDOW.DropDownStyle='DropDownList'; 'Lunedì (MON)','Martedì (TUE)','Mercoledì (WED)','Giovedì (THU)','Venerdì (FRI)','Sabato (SAT)','Domenica (SUN)' | ForEach-Object { [void]$cmbDOW.Items.Add($_) }; $cmbDOW.SelectedIndex=0; Set-Loc $cmbDOW 300 48; Set-Sz $cmbDOW 180 22; $cmbDOW.Enabled=$false; $grpSched.Controls.Add($cmbDOW)
$cmbFreq.Add_SelectedIndexChanged({ $cmbDOW.Enabled = ($cmbFreq.SelectedIndex -eq 1) })

$lblTime = New-Object System.Windows.Forms.Label; $lblTime.Text='Ora:'; Set-Loc $lblTime 20 85; Set-Sz $lblTime 40 22; $grpSched.Controls.Add($lblTime)
$timePicker = New-Object System.Windows.Forms.DateTimePicker; $timePicker.Format=[System.Windows.Forms.DateTimePickerFormat]::Time; $timePicker.ShowUpDown=$true; $timePicker.Value=(Get-Date -Hour 23 -Minute 0 -Second 0); Set-Loc $timePicker 60 82; Set-Sz $timePicker 100 22; $grpSched.Controls.Add($timePicker)

$lblTask = New-Object System.Windows.Forms.Label; $lblTask.Text='Nome task:'; Set-Loc $lblTask 180 85; Set-Sz $lblTask 80 22; $grpSched.Controls.Add($lblTask)
$txtTask = New-Object System.Windows.Forms.TextBox; Set-Loc $txtTask 260 82; Set-Sz $txtTask 230 22; $txtTask.Text='Backup_AdHoc'; $grpSched.Controls.Add($txtTask)

$lblExtra = New-Object System.Windows.Forms.Label; $lblExtra.Text='Argomenti extra per AdHoc (es. -WhatIf)'; Set-Loc $lblExtra 10 340; Set-Sz $lblExtra 380 20; $form.Controls.Add($lblExtra)
$txtExtra = New-Object System.Windows.Forms.TextBox; Set-Loc $txtExtra 10 362; Set-Sz $txtExtra 860 22; $form.Controls.Add($txtExtra)

$tabs = New-Object System.Windows.Forms.TabControl; Set-Loc $tabs 10 392; Set-Sz $tabs 860 230; $form.Controls.Add($tabs)
$tabConfig = New-Object System.Windows.Forms.TabPage; $tabConfig.Text='Configurazione (backup.conf)'; [void]$tabs.TabPages.Add($tabConfig)
$cfgPanel = New-Object System.Windows.Forms.Panel; Set-Loc $cfgPanel 10 10; Set-Sz $cfgPanel 830 150; $cfgPanel.AutoScroll=$true; $tabConfig.Controls.Add($cfgPanel)
$btnReloadConf = New-Object System.Windows.Forms.Button; $btnReloadConf.Text='Ricarica da URL'; Set-Loc $btnReloadConf 10 170; Set-Sz $btnReloadConf 120 26; $tabConfig.Controls.Add($btnReloadConf)
$btnSaveConf   = New-Object System.Windows.Forms.Button; $btnSaveConf.Text='Salva in bin\\conf'; Set-Loc $btnSaveConf 140 170; Set-Sz $btnSaveConf 230 26; $tabConfig.Controls.Add($btnSaveConf)
$btnRcloneConfig = New-Object System.Windows.Forms.Button; $btnRcloneConfig.Text='Configura rclone (console)'; Set-Loc $btnRcloneConfig 380 170; Set-Sz $btnRcloneConfig 170 26; $tabConfig.Controls.Add($btnRcloneConfig)

function Build-ConfigUI { $cfgPanel.Controls.Clear(); $global:ConfUi.Controls=@{}; $xLabel=10; $xCtrl=260; $y=10; $h=24; foreach($k in $global:ConfUi.Map.Keys){ $v=$global:ConfUi.Map[$k]; $lbl=New-Object System.Windows.Forms.Label; $lbl.Text=$k; Set-Loc $lbl $xLabel ($y+4); Set-Sz $lbl 240 $h; $cfgPanel.Controls.Add($lbl); if(Is-BoolString $v){ $chk=New-Object System.Windows.Forms.CheckBox; $chk.Checked=(('1','true','yes','y') -contains ($v.ToString().ToLower())); Set-Loc $chk $xCtrl ($y+2); Set-Sz $chk 20 $h; $chk.Add_CheckedChanged({ $global:ConfUi.Map[$k] = if($chk.Checked){'true'} else {'false'} }); $cfgPanel.Controls.Add($chk); $global:ConfUi.Controls[$k]=$chk } else { $tb=New-Object System.Windows.Forms.TextBox; $tb.Text=$v; Set-Loc $tb $xCtrl $y; Set-Sz $tb 540 $h; $tb.Add_TextChanged({ $global:ConfUi.Map[$k] = $tb.Text }); $cfgPanel.Controls.Add($tb); $global:ConfUi.Controls[$k]=$tb }; $y+=28 } }

$btnReloadConf.Add_Click({ try { $temp=$global:ConfUi.TempPath; if(Start-Download -Url $txtConfUrl.Text -Dest $temp){ Parse-BackupConf -Path $temp; Build-ConfigUI; Write-Log "backup.conf scaricato e caricato in editor: $temp" } } catch { Write-Log "Errore ricarica backup.conf: $($_.Exception.Message)" 'ERR' } })
$btnSaveConf.Add_Click({ try { $layout=Ensure-ToolsLayout -Root $txtInstall.Text; $dest=Join-Path $layout.Conf 'backup.conf'; Save-BackupConf -Path $dest; Write-Log "backup.conf salvato in: $dest" } catch { Write-Log "Errore salvataggio backup.conf: $($_.Exception.Message)" 'ERR' } })
$btnRcloneConfig.Add_Click({ try { $layout=Ensure-ToolsLayout -Root $txtInstall.Text; $rcloneExe=Ensure-RcloneExe -RcloneDir $layout.RClone; $rcloneConf=Join-Path $layout.Conf 'rclone.conf'; $cmd='cmd.exe'; $args="/k `"$rcloneExe`" config --config `"$rcloneConf`""; $p=Start-Process -FilePath $cmd -ArgumentList $args -PassThru; Track-Child $p; Write-Log "Avviato rclone config (PID=$($p.Id))" } catch { Write-Log "Errore avvio rclone config: $($_.Exception.Message)" 'ERR' } })

$btnInstall = New-Object System.Windows.Forms.Button; $btnInstall.Text='Installa'; Set-Loc $btnInstall 10 652; Set-Sz $btnInstall 120 30; $form.Controls.Add($btnInstall)
$btnClose   = New-Object System.Windows.Forms.Button; $btnClose.Text='Chiudi'; Set-Loc $btnClose 150 652; Set-Sz $btnClose 120 30; $form.Controls.Add($btnClose)

$lblLog = New-Object System.Windows.Forms.Label; $lblLog.Text='Log'; Set-Loc $lblLog 10 692; Set-Sz $lblLog 50 20; $form.Controls.Add($lblLog)
$txtLog = New-Object System.Windows.Forms.TextBox; Set-Loc $txtLog 10 712; Set-Sz $txtLog 860 100; $txtLog.Multiline=$true; $txtLog.ScrollBars='Vertical'; $txtLog.ReadOnly=$true; $form.Controls.Add($txtLog); $global:LogTextBox = $txtLog

$btnBrowse.Add_Click({ $dlg=New-Object System.Windows.Forms.FolderBrowserDialog; $dlg.Description='Seleziona cartella di installazione'; if($dlg.ShowDialog() -eq [System.Windows.Forms.DialogResult]::OK){ $txtInstall.Text=$dlg.SelectedPath } })
$btnInstall.Add_Click({
    try {
        $btnInstall.Enabled = $false
        $root = $txtInstall.Text; Ensure-Dir $root
        $layout = Ensure-ToolsLayout -Root $root
        $scriptPath = Join-Path $root 'AdHoc-Backup.ps1'
        if(-not (Start-Download -Url $txtScriptUrl.Text -Dest $scriptPath)){ throw "Impossibile scaricare lo script principale." }
        $confPath = Join-Path $layout.Conf 'backup.conf'
        if($global:ConfUi.Map){ Save-BackupConf -Path $confPath } else { if(-not (Start-Download -Url $txtConfUrl.Text -Dest $confPath)){ Write-Log "Attenzione: impossibile ottenere backup.conf; procedo senza." 'WARN' } }
        if($chkSchedule.Checked){
            $schedule = if($cmbFreq.SelectedIndex -eq 1){ 'WEEKLY' } else { 'DAILY' }
            $dowmap = @('MON','TUE','WED','THU','FRI','SAT','SUN'); $day=$dowmap[0]; if($schedule -eq 'WEEKLY'){ $day=$dowmap[$cmbDOW.SelectedIndex] }
            [void](New-DailyOrWeeklyTask -TaskName $txtTask.Text -ScriptPath $scriptPath -ConfigPath $confPath -Time $timePicker.Value -Schedule $schedule -Day $day -Quiet:$chkQuiet.Checked)
        }
        if(-not $chkNoRun.Checked){
            $args=@('-NoProfile','-ExecutionPolicy','Bypass','-File',"`"$scriptPath`"","-Config", "`"$confPath`"")
            if($chkQuiet.Checked){ $args += '-Quiet' }
            if($txtExtra.Text -and $txtExtra.Text.Trim() -ne ''){ $args += $txtExtra.Text.Trim().Split(' ') }
            $p=Start-Process -FilePath 'powershell.exe' -ArgumentList $args -PassThru; Track-Child $p; Write-Log "Esecuzione avviata (PID=$($p.Id))."
        }
        Write-Log "Installazione completata."
    } catch { Write-Log "Errore durante l'installazione: $($_.Exception.Message)" 'ERR' }
    finally { $btnInstall.Enabled = $true }
})
$btnClose.Add_Click({ $form.Close() })

# FIX: non usare $pid (conflitto con $PID automatico)
$form.Add_FormClosed({
    foreach ($cpid in $global:ChildPids) {
        try {
            $proc = Get-Process -Id $cpid -ErrorAction SilentlyContinue
            if ($proc) {
                $null = $proc.CloseMainWindow()
                Start-Sleep -Milliseconds 200
                if (-not $proc.HasExited) { Stop-Process -Id $cpid -Force -ErrorAction SilentlyContinue }
            }
        } catch {}
    }
})

$global:LogFile = Join-Path $env:TEMP "install-adhoc-backup_gui_$(Get-Date -Format 'yyyyMMdd_HHmmss').log"
Write-Log "Log file: $global:LogFile"
try {
    $temp=$global:ConfUi.TempPath
    if(Start-Download -Url $defaultConfUrl -Dest $temp){ Parse-BackupConf -Path $temp; Build-ConfigUI; Write-Log "backup.conf iniziale caricato da: $defaultConfUrl" } else { Write-Log "Non sono riuscito a scaricare il backup.conf iniziale." 'WARN' }
} catch { Write-Log "Errore iniziale confer: $($_.Exception.Message)" 'ERR' }
[void]$form.ShowDialog()