# agent-standups installer for Windows.
#
#   irm https://git.rethinkstudios.io/rethink-software/agent-standups/raw/tag/v0.1.2/install.ps1 | iex
#
# Flags (when invoked as a file): -SkillOnly -NoNode -NoCodex -Registry <url> -Yes
# Through `irm | iex` the defaults apply; download it to pass flags.
#
# Idempotent: on an installed box it prints status and changes nothing.
# Elevation is requested only by winget, and only when Node must be installed.
[CmdletBinding()]
param(
  [switch]$SkillOnly,
  [switch]$NoNode,
  [switch]$NoCodex,
  [string]$Registry = 'https://git.rethinkstudios.io/api/packages/rethink-software/npm/',
  [switch]$Yes
)

# The body runs in a scriptblock of its own (R196c). Under `irm | iex` the
# script runs IN the user's session: an `exit` closed their PowerShell window,
# and `$ErrorActionPreference = 'Stop'` and the helpers below stayed defined in
# it afterwards. Inside `& { }` they are the block's own and go with it. So
# nothing in the body may `exit`: the already-installed path `return`s from the
# block, and Die throws -- an error at the prompt under iex, exit 1 when the
# script is run as a file.
& {
$ErrorActionPreference = 'Stop'
$MinNode   = 20
$DaemonFloor = '22.13' # node:sqlite without a flag; see Test-DaemonNode
$Pkg       = 'agent-standups'
$Problems = New-Object 'System.Collections.Generic.List[string]'

function Say  { param($m) Write-Host "  $m" }
function Step { param($m) Write-Host "`n== $m" }
function Warn { param($m) Write-Warning $m; $Problems.Add($m) }
function Die  { param($m) throw $m }
function Have { param($n) [bool](Get-Command $n -ErrorAction SilentlyContinue) }

function Get-NodeMajor {
  param($exe = 'node')
  try { [int](& $exe -p 'Number(process.versions.node.split(".")[0])' 2>$null) } catch { 0 }
}

# Can this node run the daemon? Asked of the node itself, not read off its
# major: node:sqlite loads WITHOUT --experimental-sqlite only from 22.13.0 and
# 23.4.0, and nothing passes that flag, so a major-only test accepted
# 22.0-22.12 and 23.0-23.3, where the daemon dies on import (CF-62).
# `--no-warnings` and a local 'Continue': the ExperimentalWarning a good node
# prints on stderr would otherwise be a terminating NativeCommandError under
# this script's 'Stop', and read as a node that cannot run the daemon.
function Test-DaemonNode {
  param($exe = 'node')
  $ErrorActionPreference = 'Continue'
  try {
    & $exe --no-warnings -e 'require("node:sqlite")' 2>$null | Out-Null
    return ($LASTEXITCODE -eq 0)
  } catch { return $false }
}

# Refresh PATH from the registry so a winget install is visible without a new
# shell -- the whole point of doing it in-session.
function Update-PathFromRegistry {
  $machine = [Environment]::GetEnvironmentVariable('Path', 'Machine')
  $user    = [Environment]::GetEnvironmentVariable('Path', 'User')
  $env:Path = (@($machine, $user) | Where-Object { $_ }) -join ';'
}

# ------------------------------------------------------------- 1. detect ----
Step 'detect'
Say "os          : Windows $([Environment]::OSVersion.Version)"

$inRepo = $false
$scriptDir = if ($PSScriptRoot) { $PSScriptRoot } else { '' }
if ($scriptDir -and (Test-Path (Join-Path $scriptDir 'package.json'))) {
  if ((Get-Content (Join-Path $scriptDir 'package.json') -Raw) -match "`"name`"\s*:\s*`"$Pkg`"") {
    $inRepo = $true
  }
}
Say "source      : $(if ($inRepo) { "repo checkout ($scriptDir)" } else { "standalone (registry $Registry)" })"

$nodeMajor = if (Have node) { Get-NodeMajor } else { 0 }
Say "node        : $(if (Have node) { (& node --version) } else { 'not installed' })"
Say "winget      : $(if (Have winget) { 'present' } else { 'not available' })"

$standupBin = if (Have standup) { (Get-Command standup).Source } else { '' }
Say "standup     : $(if ($standupBin) { $standupBin } else { 'not installed' })"
$codexBin = (Get-Command codex -ErrorAction SilentlyContinue).Source
Say "codex       : $(if ($codexBin) { "$codexBin$(if ($NoCodex) { ' (-NoCodex)' })" } else { 'not installed' })"
$standupHome = if ($env:STANDUP_HOME) { $env:STANDUP_HOME } else { Join-Path $HOME '.standup' }
Say "config      : $(if (Test-Path (Join-Path $standupHome 'config.toml')) { 'exists' } else { 'absent' })"

# ------------------------------------------------- 2. choose the target path -
$wantDaemon = -not $SkillOnly
$daemonOk   = $wantDaemon -and (Have node) -and (Test-DaemonNode)

# ------------------------------------------------------- 3. provision Node ---
function Install-Node {
  Step "installing Node LTS via winget"
  if (-not (Have winget)) {
    Die "winget is not available and Node $DaemonFloor+ is required.
     Install Node manually from https://nodejs.org/ and re-run, or pass -SkillOnly."
  }
  # Elevation may be prompted by winget itself; we never elevate the script.
  $args = @('install', '--id', 'OpenJS.NodeJS.LTS', '--source', 'winget',
            '--accept-package-agreements', '--accept-source-agreements')
  if ($Yes) { $args += '--silent' }
  & winget @args
  if ($LASTEXITCODE -ne 0) { Die "winget install failed (exit $LASTEXITCODE)" }
  Update-PathFromRegistry
  if (-not (Have node)) {
    Die 'Node was installed but is still not on PATH. Open a new terminal and re-run.'
  }
  Say "installed   : $(& node --version) at $((Get-Command node).Source)"
}

if ($wantDaemon -and -not $daemonOk) {
  if ($NoNode) {
    Warn "no Node >= $DaemonFloor and -NoNode was given: installing skill-only (no daemon)."
    $wantDaemon = $false
  } else {
    Install-Node
    $nodeMajor = Get-NodeMajor
    $daemonOk  = Test-DaemonNode
    if (-not $daemonOk) { Warn "Node $(& node --version) cannot load node:sqlite (needs $DaemonFloor+); continuing skill-only."; $wantDaemon = $false }
  }
}
if ($nodeMajor -lt $MinNode) {
  if ($NoNode) { Die "Node is below the floor of $MinNode and -NoNode was given." }
  Install-Node
  $nodeMajor = Get-NodeMajor
}
if (-not (Have npm)) { Die 'npm is not installed.' }

Step 'plan'
Say "running node: $(& node --version) ($((Get-Command node).Source))"
Say "daemon      : $(if ($wantDaemon) { 'scheduled task at logon' } else { 'skill-only -- no daemon, search or managed agents' })"

# --------------------------------------------------- 4. already installed? ---
# With a daemon the task is part of the install too (C82-34, as install.sh):
# Ctrl-C at step 7 left skill and crossSessionInbound green and the task never
# started, and the re-run printed "Nothing changed". A box whose task is not
# running now goes straight to step 7; steps 5-6 are done and are not redone.
$serviceOnly = $false
if ($standupBin) {
  $doctorJson = (& standup doctor --json 2>$null) | Out-String
  if ($LASTEXITCODE -eq 0 -or $doctorJson.Trim().StartsWith('[')) {
    try {
      $checks = $doctorJson | ConvertFrom-Json
      $skill = $checks | Where-Object { $_.check -eq 'skill' }
      $cross = $checks | Where-Object { $_.check -eq 'crossSessionInbound' }
      $serviceUp = $true
      if ($skill.ok -and $cross.ok -and $wantDaemon) {
        & standup service status | Out-Null
        $serviceUp = ($LASTEXITCODE -eq 0)
      }
      if ($skill.ok -and $cross.ok -and -not $serviceUp) {
        Step 'already installed, but the daemon task is not running -- finishing the service step'
        $serviceOnly = $true
      } elseif ($skill.ok -and $cross.ok) {
        Step 'already installed -- status only'
        Say "standup $(& standup version 2>$null) at $standupBin"
        & standup doctor
        if ($wantDaemon) { Write-Host ''; & standup service status }
        Write-Host "`nNothing changed. Individual steps:"
        # `service install` is operator-only once a code exists (R204#12).
        Say 'standup install --runtime claude                  # skill, hooks'
        Say 'standup service install --code <operator code>    # daemon task'
        Say 'standup doctor                                    # verify'
        return
      }
    } catch { }
  }
}

# ------------------------------------------------------- 5. install the CLI --
# Steps 5 and 6 are skipped when step 4 found them done and only the task left.
if (-not $serviceOnly) {
  if ($inRepo) {
    Step 'building from source'
    Push-Location $scriptDir
    try {
      if (Test-Path 'package-lock.json') { & npm ci --silent } else { & npm install --silent }
      if ($LASTEXITCODE -ne 0) { Die 'npm install failed' }
      & npm run build --silent
      if ($LASTEXITCODE -ne 0) { Die 'build failed' }
      & npm link | Out-Null
      if ($LASTEXITCODE -ne 0) { Die 'npm link failed' }
    } finally { Pop-Location }
  } else {
    Step "installing $Pkg"
    # No `latest` dist-tag while only release candidates are published, so a bare
    # name resolves nothing; ask for `next` in that case.
    $spec = $Pkg
    if ($env:STANDUP_VERSION) {
      $spec = "$Pkg@$($env:STANDUP_VERSION)"
    } else {
      $latest = (& npm view $Pkg --registry $Registry version 2>$null | Out-String).Trim()
      if (-not $latest) { $spec = "$Pkg@next"; Say "installing $spec (no stable release yet)" }
    }
    & npm install -g $spec --registry $Registry | Out-Null
    if ($LASTEXITCODE -ne 0) { Die 'npm install -g failed' }
  }
  Update-PathFromRegistry
  if (-not (Have standup)) {
    $npmBin = (& npm prefix -g 2>$null)
    Die "standup is not on PATH after install. Add $npmBin to PATH and re-run."
  }
  Say "standup $(& standup version 2>$null) at $((Get-Command standup).Source)"
}

# ------------------------------------------------- 6. runtime: skill + hooks -
# As on Unix, the runtime install's last step posts a synthetic Stop, which
# needs a server answering -- start a throwaway one so the check is real.
if (-not $serviceOnly) {
  Step 'installing the Claude runtime'
  $probeDir = Join-Path ([IO.Path]::GetTempPath()) ("standup-probe-" + [guid]::NewGuid().ToString('N'))
  New-Item -ItemType Directory -Path $probeDir -Force | Out-Null
  $probe = $null
  try {
    # `--no-git`, as install.sh has it (R06): the probe dir is a bare temp
    # directory and `create` refuses outside a git work tree, so without it
    # nothing was created, `serve` had no project, and the synthetic-Stop check
    # failed on every Windows install (CF-56). Never `--yes`, which would
    # `git init` a temp directory. And `serve` only when `create` succeeded.
    # `--no-register`, as install.sh has it (C71-49, C72-57): the directory is
    # deleted below, and with a daemon already up a registered throwaway stayed
    # in its registry and dashboard as a detached `install-probe` project after
    # every (re)install.
    Push-Location $probeDir
    & standup create --no-git --no-register --name install-probe 2>$null | Out-Null
    $created = ($LASTEXITCODE -eq 0)
    Pop-Location
    if ($created) {
      $probe = Start-Process -FilePath 'standup' -ArgumentList 'serve' -WorkingDirectory $probeDir `
                 -WindowStyle Hidden -PassThru
      for ($i = 0; $i -lt 12; $i++) {
        if (((& standup doctor --json 2>$null) | Out-String) -match '"answering on') { break }
        Start-Sleep -Milliseconds 300
      }
    }
  } catch { }

  & standup install --runtime claude
  if ($LASTEXITCODE -ne 0) { Warn 'runtime install reported a problem; see doctor below' }

  # Codex where its binary exists. Machine-wide: the skill and the hooks. The
  # AGENTS.md step needs a project and is skipped here -- named in the closing
  # lines instead. Not run at all without codex, so no marked blocks are left
  # for a tool that is not installed; -NoCodex opts out where it is.
  if (-not $NoCodex -and $codexBin) {
    & standup install --runtime codex
    if ($LASTEXITCODE -ne 0) { Warn 'codex runtime install reported a problem; see doctor below' }
  }

  if ($probe -and -not $probe.HasExited) { Stop-Process -Id $probe.Id -Force -ErrorAction SilentlyContinue }
  Remove-Item -Recurse -Force $probeDir -ErrorAction SilentlyContinue
}

# ---------------------------------------------------------- 7. the service ---
if ($wantDaemon) {
  Step 'installing the standupd scheduled task'
  # Once an operator code exists, `service install` and `service start` are
  # operator-only (R203#14, R203#15) -- and a plain `uninstall` keeps the home,
  # code included, so a reinstall over it was refused here. This is the
  # operator's own installer: it reads the code the way the CLI lets the
  # operator read it locally and hands it to these two calls only, in their
  # environment (never argv), restoring the session's variable afterwards.
  # Whether one is SET is asked first, because `standup code` mints one when
  # there is none; a first install has none and passes nothing. As install.sh.
  $opCode = $null
  try {
    $codeStatus = (& standup expose --status --json 2>$null | Out-String) | ConvertFrom-Json
    if ($codeStatus.operatorCode -eq 'set') {
      $opCode = ((& standup code --json 2>$null | Out-String) | ConvertFrom-Json).code
    }
  } catch { $opCode = $null }
  $hadCode = Test-Path Env:STANDUP_OPERATOR_CODE
  $prevCode = $env:STANDUP_OPERATOR_CODE
  if ($opCode) { $env:STANDUP_OPERATOR_CODE = $opCode }
  try {
    & standup service install
    if ($LASTEXITCODE -eq 0) {
      & standup service start | Out-Null
      if ($LASTEXITCODE -ne 0) { Warn "task registered but did not start; see 'standup service status'" }
    } else {
      Warn "service install failed; single mode still works. See 'standup service status'."
    }
  } finally {
    if ($opCode) {
      if ($hadCode) { $env:STANDUP_OPERATOR_CODE = $prevCode }
      else { Remove-Item Env:STANDUP_OPERATOR_CODE -ErrorAction SilentlyContinue }
    }
  }
}

# ------------------------------------------------------------ 8. hand over ---
Step 'verifying'
& standup doctor
if ($LASTEXITCODE -ne 0) { Warn 'some checks need attention (above)' }

if ($Problems.Count -eq 0) { Step 'done' } else {
  Step 'done, with things to know'
  foreach ($p in $Problems) { Say "- $p" }
  Write-Host ''
}
$port = if ($env:STANDUP_PORT) { $env:STANDUP_PORT } else { '7335' }
Say "dashboard : http://127.0.0.1:$port"
Write-Host ''
& standup code
Write-Host ''
Write-Host 'Next: cd <your project>; standup create'
if (-not $NoCodex -and $codexBin) {
  Write-Host ''
  Write-Host 'Codex: the skill and hooks are wired machine-wide. Codex must TRUST them:'
  Write-Host '  run /hooks inside Codex and approve.'
  Write-Host 'Per project, for the room rules in AGENTS.md:'
  Write-Host '  standup install --runtime codex'
}
}