# E04-S05: run the print/fault runtime test in x128, then check the screen
# text and the mailbox failure fields.
[CmdletBinding()]
param([int]$Port = 6546, [int]$TimeoutSeconds = 180)

$ErrorActionPreference = "Stop"
$project = Split-Path $PSScriptRoot -Parent
Import-Module (Join-Path $PSScriptRoot "lib\Nova128Test.psm1") -Force
& (Join-Path $PSScriptRoot "build-print-test.ps1")

$out = Join-Path $project "build\print-test"
$disk = Join-Path $out "print-test.d81"
$expected = @(
    "NOVA128 PRINT TEST",
    "TEXT OK",
    "BYTE 0 7 255",
    "WORD 0 12345 65535",
    "INT -1 -32768 32767",
    "BOOL FALSE TRUE",
    "CHAR A",
    "RUNTIME FAULT R001",
    "RUNTIME FAULT R002",
    "RUNTIME FAULT R003",
    "RUNTIME FAULT R004",
    "RUNTIME FAULT R005")
$failures = @()

$session = Start-Nova128X128 -Autostart $disk -Drive8Image $disk -Port $Port `
    -Screenshot (Join-Path $out "print-test-vicii.png")
try {
    $null = Wait-Nova128Mailbox $session -TimeoutSeconds $TimeoutSeconds
    Start-Sleep -Seconds 2                   # all five fault lines are printed
    $mb = Read-Nova128Memory $session 0x1BF0 16
    $screenRam = Read-Nova128Memory $session 0x0400 1000
} finally {
    Stop-Nova128X128 $session -SettleSeconds 0
}

# ------------------------------------------------------------- mailbox
if ($mb[2] -ne 0x03) { $failures += ("producer $($mb[2]) expected 3 (generated program)") }
if ($mb[3] -ne 0xFA) { $failures += ("status ${0:X2} expected FA (failure)" -f $mb[3]) }
if ($mb[4] -ne 5 -or $mb[5] -ne 0) { $failures += ("code {0} expected 5 (heap)" -f ($mb[4] + 256 * $mb[5])) }
$addr = $mb[6] + 256 * $mb[7]
if ($addr -ne 0x1234) { $failures += ("address ${0:X4} expected 1234" -f $addr) }
if ($mb[8] -ne 1) { $failures += "CR/RCR changed across the print and fault calls" }

# -------------------------------------------------------------- screen
$rows = for ($r = 0; $r -lt 25; $r++) {
    $chars = for ($c = 0; $c -lt 40; $c++) {
        $code = $screenRam[$r * 40 + $c]
        if ($code -le 0x1F) { [char]($code + 0x40) } elseif ($code -le 0x3F) { [char]$code } else { '?' }
    }
    (-join $chars).TrimEnd()
}
for ($r = 0; $r -lt $expected.Count; $r++) {
    if ($rows[$r] -cne $expected[$r]) {
        $failures += "screen row ${r}: '$($rows[$r])' expected '$($expected[$r])'"
    }
}
$wide = @($rows[0..($expected.Count - 1)] | Where-Object { $_.Length -gt 39 })
if ($wide) { $failures += "screen rows longer than 39: $($wide -join ' | ')" }

if ($failures) { throw ("print runtime verification failed:`n  " + ($failures -join "`n  ")) }
Write-Host "screen:"
$rows[0..($expected.Count - 1)] | ForEach-Object { Write-Host "  |$_" }
Write-Host ("mailbox: producer 3, status FA, code 5, address {0:X4}, mapping preserved" -f $addr)
Write-Host "verified print formatting, fault reporting, and mapping stability"