# E06-S03: run the interface table fixture in x128 and check its mailbox and
# the TABLE records in IFTTEST.MAP.
[CmdletBinding()]
param([int]$Port = 6559, [int]$TimeoutSeconds = 180)

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

$out = Join-Path $project "build\iftable-test"
$disk = Join-Path $out "iftable-test.d81"
$labels = Join-Path $out "iftable-test.lbl"
$c1541 = Get-ViceTool "c1541"
$failures = @()

$session = Start-Nova128X128 -Autostart $disk -Drive8Image $disk -Port $Port `
    -Screenshot (Join-Path $out "iftable-test-vicii.png")
try {
    $mb = Wait-Nova128Mailbox $session -TimeoutSeconds $TimeoutSeconds
    Start-Sleep -Milliseconds 500
    $screenRam = Read-Nova128Memory $session 0x0400 1000
} finally {
    Stop-Nova128X128 $session -SettleSeconds 0
}

if ($mb[2] -ne 0x03) { $failures += "producer $($mb[2]) expected 3" }
if ($mb[3] -ne 0xA5) { $failures += ("status {0:X2} expected A5" -f $mb[3]) }
if ($mb[4] -ne 0 -or $mb[5] -ne 0) { $failures += "code $($mb[4] + 256 * $mb[5]) expected 0" }
for ($i = 0; $i -lt 8; $i++) {
    if ($mb[8 + $i] -ne 1) { $failures += "phase $i flag is $($mb[8 + $i]), expected 1" }
}

$rows = for ($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 $chars).TrimEnd()
}
if (-not ($rows -contains "NOVA128 IFTABLE TEST OK")) {
    $failures += "screen does not contain 'NOVA128 IFTABLE TEST OK'"
}

function Read-DiskFile([string]$Name, [string]$Dest, [bool]$Seq) {
    if (Test-Path -LiteralPath $Dest) { Remove-Item -LiteralPath $Dest -Force }
    $spec = if ($Seq) { "$Name,s" } else { $Name }
    $prev = $ErrorActionPreference
    $ErrorActionPreference = "Continue"
    & $c1541 -attach $disk -read $spec $Dest 2>&1 | Out-Null
    $ErrorActionPreference = $prev
    return (Test-Path -LiteralPath $Dest)
}

$mapPath = Join-Path $out "IFTTEST.MAP"
if (Read-DiskFile "ifttest.map" $mapPath $true) {
    $mapLines = ([IO.File]::ReadAllText($mapPath)).TrimEnd("`r", "`n") -split "`r`n|`r|`n"
} else {
    $failures += ("no IFTTEST.MAP (check at {0:X2}{1:X2})" -f $mb[7], $mb[6])
    $mapLines = @()
}
$alphaA = Get-Nova128Label $labels "m_alpha_a"
$betaA = Get-Nova128Label $labels "m_beta_a"
$alphaB = Get-Nova128Label $labels "m_alpha_b"
$betaB = Get-Nova128Label $labels "m_beta_b"
$expectedMap = @(
    "NOVA128 MAP 1",
    "ENTRY 1C0D",
    "SECTION STUB 1C01 000C",
    "SECTION START 1C0D 004A",
    ("TABLE A IFOO B000 02 {0:X4} {1:X4}" -f $alphaA, $betaA),
    ("TABLE A IBAR B004 01 {0:X4}" -f $alphaA),
    ("TABLE B IFOO B006 02 {0:X4} {1:X4}" -f $alphaB, $betaB))
if ($mapLines -and ($mapLines -join "`n") -ne ($expectedMap -join "`n")) {
    $failures += ("IFTTEST.MAP differs:`n  got:  " + ($mapLines -join "`n        ") +
        "`n  want: " + ($expectedMap -join "`n        "))
}

$detail = "last check {0:X4} value {1:X2}" -f ($mb[6] + 256 * $mb[7]), $mb[4]
if ($failures) {
    throw ("interface table verification failed ($detail):`n  " + ($failures -join "`n  ") +
        "`n  screen:`n  " + (($rows | Where-Object { $_ }) -join "`n  "))
}
Write-Host "screen:"
$rows | Where-Object { $_ } | ForEach-Object { Write-Host "  |$_" }
Write-Host "mailbox: producer 3, PASS, all 8 table flags set"
Write-Host "MAP:"
$expectedMap | ForEach-Object { Write-Host "  |$_" }