$ErrorActionPreference = "Stop"
$scriptUnderTest = Join-Path (Split-Path $PSScriptRoot -Parent) "scripts\sync_mcp_registrations.ps1"
$testDir = Join-Path ([IO.Path]::GetTempPath()) ("tools-sync-mcp-test-" + [guid]::NewGuid().ToString("N"))
New-Item -ItemType Directory -Path $testDir | Out-Null
$claudeConfig = Join-Path $testDir "claude.json"
$codexConfig = Join-Path $testDir "config.toml"

try {
    $claudeText = @'
{
  "mcpServers": {
    "claude-only": {"type":"stdio","command":"python","args":["a.py"],"env":{"A":"1"}},
    "same": {"type":"stdio","command":"python","args":["same.py"],"env":{}},
    "drifted": {"type":"stdio","command":"python","args":["claude.py"],"env":{}}
  }
}
'@
    [IO.File]::WriteAllText($claudeConfig, $claudeText, [Text.UTF8Encoding]::new($false))

    $codexText = @'
[mcp_servers.codex-only]
command = "python"
args = ["b.py"]

[mcp_servers.same]
command = "python"
args = ["same.py"]
env = { PYTHONIOENCODING = "utf-8", PYTHONUTF8 = "1" }

[mcp_servers.drifted]
command = "python"
args = ["codex.py"]

[mcp_servers.node_repl]
command = "C:\\Users\\tester\\.codex\\runtimes\\node_repl.exe"
'@
    [IO.File]::WriteAllText($codexConfig, $codexText, [Text.UTF8Encoding]::new($false))

    $oldErrorActionPreference = $ErrorActionPreference
    $ErrorActionPreference = "Continue"
    # -CodexSource Toml pins the read to the fixture; the default Auto path would query the
    # real `codex mcp list` and make this test measure the machine instead of the fixtures.
    $output = & powershell -NoProfile -ExecutionPolicy Bypass -File $scriptUnderTest `
        -ClaudeConfig $claudeConfig -CodexConfig $codexConfig -CodexSource Toml -Verbose 2>&1 | Out-String
    $code = $LASTEXITCODE
    $ErrorActionPreference = $oldErrorActionPreference
    if ($code -ne 2) { throw "expected audit exit 2, got $code`n$output" }
    if ($output -notmatch 'Claude only\s*:\s*claude-only') { throw "Claude-only difference not detected`n$output" }
    if ($output -notmatch 'Codex only\s*:\s*codex-only') { throw "Codex-only difference not detected`n$output" }
    if ($output -notmatch 'Drift\s*:\s*drifted') { throw "drift not detected`n$output" }
    if ($output -notmatch 'Matched\s*:\s*same') { throw "Codex-only UTF-8 env should not cause drift`n$output" }
    if ($output -match 'Codex only\s*:.*node_repl') { throw "managed Codex MCP was not excluded`n$output" }
    Write-Host "PASS: bidirectional MCP audit fixtures"
} finally {
    Remove-Item -LiteralPath $claudeConfig -Force -ErrorAction SilentlyContinue
    Remove-Item -LiteralPath $codexConfig -Force -ErrorAction SilentlyContinue
    Remove-Item -LiteralPath $testDir -Force -ErrorAction SilentlyContinue
}