# Setup-LiveProbeEnv.ps1 — populate the env vars the mxaccess Rust port's
# `live`-feature integration tests and probes expect, fetching credentials
# from the homelab Infisical instance via wwtools/secrets/Get-Secret.ps1.
#
# Usage:
#   . .\tools\Setup-LiveProbeEnv.ps1                    # dot-source — env vars persist in the calling session
#   . .\tools\Setup-LiveProbeEnv.ps1 -SkipAsbSecret     # no Infisical lookup for ASB shared secret (CI/dev fallback)
#   .\tools\Setup-LiveProbeEnv.ps1 -DryRun              # print what would be set without exporting
#
# Hard rules (per design/00-overview.md "Adjacent tooling" section):
#   - Credentials are fetched via `wwtools\secrets\Get-Secret.ps1`, which logs
#     into Infisical fresh on each call (DPAPI session storage doesn't survive
#     non-interactive contexts).
#   - We never inline plaintext secrets here. New AVEVA-specific secrets go
#     into Infisical at `homelab/aveva/system-platform/<KEY>` (suggested path).
#   - Sets `MX_LIVE=1` to enable the `live` feature gate in cargo tests.
#
# Env vars set:
#   MX_LIVE                 — "1", enables the `live` cargo feature
#   MX_NMX_HOST             — NMX hostname (default: localhost)
#   MX_GALAXY_DB            — tiberius / SQL Server connection string with integrated security
#   MX_GALAXY_NAME          — Galaxy name (default: $env:MX_GALAXY_NAME or 'ZB' from wwtools/grdb)
#   MX_TEST_USER            — fetched from Infisical: homelab/infrastructure/windows-hosts/WW_VM_ADMIN_USER
#   MX_TEST_DOMAIN          — fetched from Infisical: ...WW_VM_ADMIN_DOMAIN
#   MX_TEST_PASSWORD        — fetched from Infisical: ...WW_VM_ADMIN_PWD
#   MX_ASB_SHARED_SECRET    — fetched from Infisical: homelab/aveva/system-platform/ASB_SHARED_SECRET
#                             (TODO: add this entry to Infisical — currently optional with -SkipAsbSecret)

[CmdletBinding()]
param(
    [string]$NmxHost = 'localhost',
    [string]$GalaxyName = $(if ($env:MX_GALAXY_NAME) { $env:MX_GALAXY_NAME } else { 'ZB' }),
    [string]$GalaxyServer = 'localhost',
    [switch]$SkipAsbSecret,
    [switch]$DryRun
)

$ErrorActionPreference = 'Stop'

$GetSecret = 'C:\Users\dohertj2\Desktop\wwtools\secrets\Get-Secret.ps1'
if (-not (Test-Path $GetSecret)) {
    throw "Get-Secret.ps1 not found at $GetSecret. wwtools must be installed at C:\Users\dohertj2\Desktop\wwtools per design/00-overview.md 'Adjacent tooling' section."
}

# Hydrate User-scope env vars into Process scope. Necessary in non-interactive
# contexts (Bash → pwsh, scheduled tasks, CI runners) where the User-scope
# block from HKCU\Environment is not auto-merged into the process env.
foreach ($name in @('INFISICAL_API_URL','INFISICAL_UNIVERSAL_AUTH_CLIENT_ID','INFISICAL_UNIVERSAL_AUTH_CLIENT_SECRET')) {
    if (-not (Get-Item -Path "Env:$name" -ErrorAction SilentlyContinue)) {
        $userValue = [Environment]::GetEnvironmentVariable($name, 'User')
        if ($userValue) {
            Set-Item -Path "Env:$name" -Value $userValue
        }
    }
}

function Set-LiveEnvVar {
    param([string]$Name, [string]$Value, [switch]$Sensitive)
    $display = if ($Sensitive) { '***redacted***' } else { $Value }
    if ($DryRun) {
        Write-Host "[DRY] $Name = $display" -ForegroundColor Yellow
    } else {
        Set-Item -Path "Env:$Name" -Value $Value
        Write-Host "[SET] $Name = $display" -ForegroundColor Green
    }
}

function Get-InfisicalSecret {
    param([string]$Key, [string]$Env = 'infrastructure', [string]$Path = '/windows-hosts')
    try {
        $value = & $GetSecret -Key $Key -Env $Env -Path $Path 2>&1
        if ($LASTEXITCODE -ne 0 -or -not $value) {
            throw "Get-Secret returned empty for $Env$Path/$Key (exit code $LASTEXITCODE)"
        }
        # The infisical CLI occasionally writes an upgrade-available banner
        # ("A new release of infisical is available: ...") to stderr; the
        # `2>&1` redirect above merges it into the value stream. Filter
        # those banner lines so they don't pollute the returned secret.
        # Take the last non-empty, non-banner line — the actual secret
        # value is always the final line of `infisical secrets get --plain`.
        $clean = ($value | Out-String) -split "(`r`n|`n)" |
            ForEach-Object { $_.Trim() } |
            Where-Object {
                $_ -and
                ($_ -notmatch '^A new release of infisical is available') -and
                ($_ -notmatch '^Please upgrade ')
            }
        if (-not $clean) {
            throw "Get-Secret produced no usable line for $Env$Path/$Key after banner filtering"
        }
        return ($clean | Select-Object -Last 1)
    } catch {
        throw "Failed to fetch $Env$Path/$Key from Infisical: $_"
    }
}

Write-Host "mxaccess live-probe env setup" -ForegroundColor Cyan
Write-Host "  source: wwtools/secrets/Get-Secret.ps1 -> https://infisical.dohertylan.com" -ForegroundColor DarkGray
Write-Host ""

# Non-secret env vars
Set-LiveEnvVar -Name 'MX_LIVE' -Value '1'
Set-LiveEnvVar -Name 'MX_NMX_HOST' -Value $NmxHost
Set-LiveEnvVar -Name 'MX_GALAXY_NAME' -Value $GalaxyName
$galaxyDb = "Server=$GalaxyServer;Database=$GalaxyName;Integrated Security=True;TrustServerCertificate=True"
Set-LiveEnvVar -Name 'MX_GALAXY_DB' -Value $galaxyDb

# Secret-backed env vars
Write-Host ""
Write-Host "Fetching credentials from Infisical..." -ForegroundColor Cyan

$user = Get-InfisicalSecret -Key 'WW_VM_ADMIN_USER'
Set-LiveEnvVar -Name 'MX_TEST_USER' -Value $user

$domain = Get-InfisicalSecret -Key 'WW_VM_ADMIN_DOMAIN'
Set-LiveEnvVar -Name 'MX_TEST_DOMAIN' -Value $domain

$password = Get-InfisicalSecret -Key 'WW_VM_ADMIN_PWD'
Set-LiveEnvVar -Name 'MX_TEST_PASSWORD' -Value $password -Sensitive

if ($SkipAsbSecret) {
    Write-Host "[SKIP] MX_ASB_SHARED_SECRET (use AsbCredentials::shared_secret(&[u8]) constructor or set manually)" -ForegroundColor Yellow
} else {
    try {
        $asbSecret = Get-InfisicalSecret -Key 'ASB_SHARED_SECRET' -Env 'aveva' -Path '/system-platform'
        Set-LiveEnvVar -Name 'MX_ASB_SHARED_SECRET' -Value $asbSecret -Sensitive
    } catch {
        Write-Warning "MX_ASB_SHARED_SECRET not yet in Infisical. Add it at homelab/aveva/system-platform/ASB_SHARED_SECRET, or rerun with -SkipAsbSecret. Underlying error: $_"
        Set-LiveEnvVar -Name 'MX_ASB_SHARED_SECRET' -Value '' -Sensitive
    }
}

Write-Host ""
Write-Host "Done. Live-probe env is ready." -ForegroundColor Green
Write-Host "  Run cargo tests with the 'live' feature: cargo test -p mxaccess --features live -- --ignored" -ForegroundColor DarkGray
Write-Host "  Run a probe example: cargo run -p mxaccess --example session-write" -ForegroundColor DarkGray