#requires -Version 5.1
# Phase 0 aggregator - runs every check in .github/workflows/ci.yml locally and
# reports a single pass/fail summary. Use this as the "did I set everything up
# right?" one-liner for new teammates.
#
# Pieces run, in order:
#   1. Rule R2 boundary  (scripts/check_pdfium_boundary.ps1)
#   2. Engine            (cmake configure + build + ctest)
#   3. Gateway           (pip install -e [dev] + ruff + pytest, in gateway/)
#   4. WASM hello-world  (cmake configure + build + node hello.test.mjs)
#
# Skips (not failures) are reported when a toolchain isn't present - e.g. no
# Emscripten on PATH skips WASM. Each piece runs independently; a failure in
# one does not abort later pieces.
#
# Examples:
#   pwsh scripts/test_phase0.ps1
#   pwsh scripts/test_phase0.ps1 -Preset win-local-pdfium
#   pwsh scripts/test_phase0.ps1 -BinaryDir C:/Users/me/pdfeng-build/windows-debug
#   pwsh scripts/test_phase0.ps1 -SkipWasm
#
# OneDrive note: on this repo's spaced/OneDrive-synced path the default in-tree
# binaryDir breaks the engine build (see docs/phase0.md "OneDrive warning").
# Pass -BinaryDir to redirect, or use a CMakeUserPresets preset that already
# does so (e.g. win-local-pdfium).
param(
    [string]$Preset = '',
    [string]$BinaryDir = '',
    [switch]$SkipEngine,
    [switch]$SkipGateway,
    [switch]$SkipWasm
)

$ErrorActionPreference = 'Continue'
$RepoRoot = Split-Path -Parent (Split-Path -Parent $MyInvocation.MyCommand.Path)
Set-Location $RepoRoot

if (-not $Preset) {
    if ($env:OS -eq 'Windows_NT') { $Preset = 'windows-debug' }
    elseif ($IsMacOS) { $Preset = 'macos-debug' }
    else { $Preset = 'linux-debug' }
}

$script:results = [ordered]@{}

function Invoke-Step {
    param([string]$Name, [scriptblock]$Body)
    Write-Host ''
    Write-Host ">> [$Name]"
    $global:LASTEXITCODE = 0
    try {
        & $Body
        $rc = $LASTEXITCODE
        if ($rc -and $rc -ne 0) {
            $script:results[$Name] = 'FAIL'
            Write-Host "   [$Name] FAILED (exit $rc)"
        } else {
            $script:results[$Name] = 'PASS'
            Write-Host "   [$Name] OK"
        }
    } catch {
        $script:results[$Name] = 'FAIL'
        Write-Host "   [$Name] FAILED: $_"
    }
}

function Skip-Step {
    param([string]$Name, [string]$Reason)
    Write-Host ''
    Write-Host ">> [$Name] SKIPPED: $Reason"
    $script:results[$Name] = 'SKIP'
}

Write-Host "Phase 0 aggregator - preset='$Preset'$(if ($BinaryDir) { " binaryDir='$BinaryDir'" })"

# --- 1. Rule R2 boundary -----------------------------------------------------
Invoke-Step 'R2 boundary' {
    & (Join-Path $RepoRoot 'scripts/check_pdfium_boundary.ps1')
}

# --- 2. Engine ---------------------------------------------------------------
if ($SkipEngine) {
    Skip-Step 'engine' 'requested via -SkipEngine'
} elseif (-not $env:VCPKG_ROOT) {
    Skip-Step 'engine' 'VCPKG_ROOT not set - run scripts/bootstrap.ps1 first (and re-open the shell, or set $env:VCPKG_ROOT)'
} else {
    Invoke-Step 'engine configure' {
        if ($BinaryDir) { cmake --preset $Preset -B $BinaryDir } else { cmake --preset $Preset }
    }
    if ($script:results['engine configure'] -eq 'PASS') {
        Invoke-Step 'engine build' {
            if ($BinaryDir) { cmake --build $BinaryDir } else { cmake --build --preset $Preset }
        }
        if ($script:results['engine build'] -eq 'PASS') {
            Invoke-Step 'engine test' {
                if ($BinaryDir) { ctest --test-dir $BinaryDir --output-on-failure } else { ctest --preset $Preset }
            }
        } else {
            Skip-Step 'engine test' 'build failed'
        }
    } else {
        Skip-Step 'engine build' 'configure failed'
        Skip-Step 'engine test' 'configure failed'
    }
}

# --- 3. Gateway --------------------------------------------------------------
if ($SkipGateway) {
    Skip-Step 'gateway' 'requested via -SkipGateway'
} elseif (-not (Get-Command python -ErrorAction SilentlyContinue)) {
    Skip-Step 'gateway' 'python not found on PATH'
} else {
    Push-Location (Join-Path $RepoRoot 'gateway')
    try {
        Invoke-Step 'gateway install' { python -m pip install --quiet -e ".[dev]" }
        if ($script:results['gateway install'] -eq 'PASS') {
            Invoke-Step 'gateway lint'   { python -m ruff check . }
            Invoke-Step 'gateway format' { python -m ruff format --check . }
            Invoke-Step 'gateway pytest' { python -m pytest }
        }
    } finally { Pop-Location }
}

# --- 4. WASM hello-world -----------------------------------------------------
if ($SkipWasm) {
    Skip-Step 'wasm' 'requested via -SkipWasm'
} elseif (-not (Get-Command emcc -ErrorAction SilentlyContinue)) {
    Skip-Step 'wasm' 'emcc not on PATH - activate emsdk (emsdk_env.ps1) first'
} elseif (-not (Get-Command node -ErrorAction SilentlyContinue)) {
    Skip-Step 'wasm' 'node not on PATH'
} else {
    Invoke-Step 'wasm configure' { cmake --preset wasm }
    if ($script:results['wasm configure'] -eq 'PASS') {
        Invoke-Step 'wasm build' { cmake --build --preset wasm }
        if ($script:results['wasm build'] -eq 'PASS') {
            Invoke-Step 'wasm test' { node wasm/hello.test.mjs }
        } else {
            Skip-Step 'wasm test' 'build failed'
        }
    } else {
        Skip-Step 'wasm build' 'configure failed'
        Skip-Step 'wasm test' 'configure failed'
    }
}

# --- Summary ----------------------------------------------------------------
Write-Host ''
Write-Host '================ Phase 0 summary ================'
$pad = 0
foreach ($k in $script:results.Keys) { if ($k.Length -gt $pad) { $pad = $k.Length } }
$fmt = '  {0,-' + $pad + '}  {1}'
$anyFail = $false
foreach ($name in $script:results.Keys) {
    $status = $script:results[$name]
    Write-Host ($fmt -f $name, $status)
    if ($status -eq 'FAIL') { $anyFail = $true }
}
Write-Host '================================================='

if ($anyFail) {
    Write-Host 'Phase 0: FAIL'
    exit 1
}
Write-Host 'Phase 0: PASS'
exit 0