# WinForms target for the cua-vs-Orca background bench. Writes its state to state.json every 30 ms
# and acknowledges each JSON command after applying it.
param([string]$StateDir)
$ErrorActionPreference = "Stop"
if ($env:ORCA_COMPUTER_BENCH_ISOLATED -ne "1" -or $env:GITHUB_ACTIONS -ne "true") { throw "fixture requires isolated CI desktop" }
Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing
[System.Windows.Forms.Application]::EnableVisualStyles()

$statePath = Join-Path $StateDir "state.json"
$cmdPath = Join-Path $StateDir "cmd"
$instance = $env:BENCH_INSTANCE
$script:ack = $null
$script:sequence = 0
$script:count = 0
$script:returns = 0
$script:submittedText = $null
$script:clickedColor = $null
$script:menuHits = 0
$script:last = ""

$form = New-Object System.Windows.Forms.Form
$form.Text = "BenchTarget"
$form.StartPosition = "Manual"
$form.Location = New-Object System.Drawing.Point(60, 60)
$form.Size = New-Object System.Drawing.Size(760, 560)

$menu = New-Object System.Windows.Forms.MenuStrip
$edit = New-Object System.Windows.Forms.ToolStripMenuItem("Edit")
$bump = New-Object System.Windows.Forms.ToolStripMenuItem("Bump")
$bump.ShortcutKeys = [System.Windows.Forms.Keys]::Control -bor [System.Windows.Forms.Keys]::B
$bump.Add_Click({ $script:menuHits++ })
[void]$edit.DropDownItems.Add($bump)
[void]$menu.Items.Add($edit)
$form.MainMenuStrip = $menu
$form.Controls.Add($menu)

$button = New-Object System.Windows.Forms.Button
$button.Text = "Increment"
$button.Location = New-Object System.Drawing.Point(20, 40)
$button.Add_Click({ $script:count++; $script:clickedColor = [string]$combo.SelectedItem })
$form.Controls.Add($button)

$check = New-Object System.Windows.Forms.CheckBox
$check.Text = "Check me"
$check.Location = New-Object System.Drawing.Point(20, 80)
$form.Controls.Add($check)

$field = New-Object System.Windows.Forms.TextBox
$field.Name = "field"
$field.AccessibleName = "field"
$field.Location = New-Object System.Drawing.Point(20, 120)
$field.Width = 300
$field.Add_KeyDown({
    param($sender, $e)
    if ($e.KeyCode -eq [System.Windows.Forms.Keys]::Enter) {
        $script:returns++; $script:submittedText = $sender.Text; $e.SuppressKeyPress = $true
    }
})
$form.Controls.Add($field)

$decoy = New-Object System.Windows.Forms.TextBox
$decoy.Name = "decoy"
$decoy.AccessibleName = "decoy"
$decoy.Location = New-Object System.Drawing.Point(350, 120)
$decoy.Width = 300
$form.Controls.Add($decoy)

$combo = New-Object System.Windows.Forms.ComboBox
$combo.DropDownStyle = "DropDownList"
$combo.AccessibleName = "Color"
[void]$combo.Items.AddRange(@("Red", "Green", "Blue"))
$combo.SelectedIndex = 0
$combo.Location = New-Object System.Drawing.Point(20, 160)
$form.Controls.Add($combo)

$list = New-Object System.Windows.Forms.ListBox
$list.AccessibleName = "list"
$list.Location = New-Object System.Drawing.Point(20, 200)
$list.Size = New-Object System.Drawing.Size(300, 250)
foreach ($i in 1..300) { [void]$list.Items.Add("Row $i") }
$form.Controls.Add($list)

function Invoke-BenchCommand($c) {
    if ($c.instance -ne $instance) { return }
    $script:count = 0; $script:returns = 0; $script:menuHits = 0
    $script:submittedText = $null; $script:clickedColor = $null
    $check.Checked = $false
    $edit.HideDropDown()
    $combo.SelectedIndex = 0
    $combo.DroppedDown = $false
    $list.TopIndex = 0
    $field.Text = if ($c.task -eq 'replace_submit') { 'hello' } else { '' }
    $field.SelectionStart = $field.Text.Length
    $field.SelectionLength = 0
    $decoy.Text = 'untouched'
    $decoy.SelectionStart = $decoy.Text.Length
    $decoy.SelectionLength = 0
    $form.ActiveControl = if ($c.task -eq 'targeted_type') { $decoy } else { $field }
    $script:ack = $c.nonce
}

$timer = New-Object System.Windows.Forms.Timer
$timer.Interval = 30
$timer.Add_Tick({
    $script:sequence++
    try {
        if (Test-Path $cmdPath) {
            $c = ([IO.File]::ReadAllText($cmdPath)).Trim()
            if ($c) { [IO.File]::WriteAllText($cmdPath, ""); Invoke-BenchCommand ($c | ConvertFrom-Json) }
        }
    } catch {}
    $state = [ordered]@{
        instance = $instance; ack = $script:ack; seq = $script:sequence
        decoyText = $decoy.Text
        logicalFocus = $(if ($form.ActiveControl -eq $field) { 'field' } elseif ($form.ActiveControl -eq $decoy) { 'decoy' } else { 'other' })
        count = $script:count; check = $check.Checked; text = $field.Text; returns = $script:returns
        submittedText = $script:submittedText; clickedColor = $script:clickedColor
        selStart = $field.SelectionStart; selLen = $field.SelectionLength; combo = [string]$combo.SelectedItem
        top = $list.TopIndex; menuHits = $script:menuHits; dropOpen = ($edit.DropDown.Visible -or $combo.DroppedDown)
        activeForm = ($null -ne [System.Windows.Forms.Form]::ActiveForm); fieldFocused = $field.Focused
        pid = $PID
    }
    $json = $state | ConvertTo-Json -Compress
    if ($json -ne $script:last) {
        try { [IO.File]::WriteAllText($statePath, $json); $script:last = $json } catch {}
    }
})
$form.Add_Shown({ $form.ActiveControl = $field; $timer.Start() })
[System.Windows.Forms.Application]::Run($form)