# Long-poll hooks-approval for Stop (plan mode) decisions
# Only activates when permission_mode is 'plan' and stop_hook_active is false
# Returns Stop decision JSON per Claude Code docs:
#   { "decision": "block", "reason": "..." } to continue implementing
#   {} or empty to let Claude stop
param([string]$agent = "")
if ($agent) { $logFile = "$PSScriptRoot/../.claude-$agent/debug/hooks.log" }
else { $logFile = "$PSScriptRoot/../.claude/debug/hooks.log"; $agent = "local" }
$ts = Get-Date -Format "HH:mm:ss.fff"
$b = [Console]::In.ReadToEnd()
Add-Content $logFile "[$ts] [PLAN] Hook fired for agent=$agent stdin_len=$($b.Length)"
$j = $b | ConvertFrom-Json
Add-Content $logFile "[$ts] [PLAN] permission_mode=$($j.permission_mode) stop_hook_active=$($j.stop_hook_active)"
if ($j.permission_mode -ne 'plan' -or $j.stop_hook_active) {
  Add-Content $logFile "[$ts] [PLAN] Skipping (not plan mode or stop_hook_active)"
  exit 0
}
$url = 'http://localhost:4101/api/hooks-approval/plan'
$sep = '?'
$pty = $env:AGENT_UI_PTY_SESSION
if ($pty) { $url += "${sep}pty_session=$pty"; $sep = '&' }
if ($agent -and $agent -ne 'local') { $url += "${sep}agent=$agent" }
try {
  Add-Content $logFile "[$ts] [PLAN] POSTing to backend..."
  $r = Invoke-RestMethod -Uri $url -Method POST -Body $b -ContentType 'application/json' -TimeoutSec 125
  $ts2 = Get-Date -Format "HH:mm:ss.fff"
  if ($r -and $r.decision) {
    $out = $r | ConvertTo-Json -Depth 10 -Compress
    Add-Content $logFile "[$ts2] [PLAN] Got response: $out"
    $out
  } else {
    Add-Content $logFile "[$ts2] [PLAN] Empty/timeout response (no decision)"
  }
} catch {
  $ts2 = Get-Date -Format "HH:mm:ss.fff"
  Add-Content $logFile "[$ts2] [PLAN] ERROR: $($_.Exception.Message)"
}