#!/usr/bin/env bash
# resolve_session_id.sh — multi-agent-mux-resume 의 부속 스크립트
# Usage:
#   bash resolve_session_id.sh --workspace <path> --agent <claude|agy|hermes|grok|opencode|codex>
# 출력: stdout 으로 UUID 한 줄 (없으면 빈 줄 + exit 0)
#
# P0-C / Issue #63: 전역 agent_identities 를 즉시 반환하지 않는다. lib.sh::mam_session_ids
# 가 워크스페이스 격리된 해결 경로(per-row own id -> #40 active capture / 디스크 스캔)만 사용.
# 다른 워크스페이스나 다른 행이 기록한 UUID 를 절대 반환하지 않음.
set -euo pipefail

source "$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)/lib.sh"

usage() {
  cat <<EOF
Usage: $0 --workspace <path> --agent <claude|agy|hermes|grok|opencode|codex> [--session <name>]
Outputs the resolved UUID on stdout (empty if not found).
--session prefers that registry row's recorded id; falls back to workspace-wide discovery if it does not verify.
EOF
}

WORKSPACE=""
AGENT=""
SESSION_NAME=""
HERDR_ALIVE="0"
PANE_PID=""

while [ $# -gt 0 ]; do
  case "$1" in
    --workspace)   WORKSPACE="$2";   shift 2 ;;
    --agent)       AGENT="$2";       shift 2 ;;
    --session)     SESSION_NAME="$2"; shift 2 ;;
    --herdr-alive) HERDR_ALIVE="$2"; shift 2 ;;
    --pane-pid)    PANE_PID="$2";    shift 2 ;;
    -h|--help)     usage; exit 0 ;;
    *) echo "ERROR: unknown arg: $1" >&2; exit 2 ;;
  esac
done

[ -n "$WORKSPACE" ] || { echo "ERROR: --workspace required" >&2; exit 2; }
[ -n "$AGENT" ]    || { echo "ERROR: --agent required" >&2; exit 2; }
case "$AGENT" in
  claude|agy|hermes|grok|opencode|codex) ;;
  *) echo "ERROR: --agent must be claude, agy, hermes, grok, opencode, or codex" >&2; exit 2 ;;
esac

mam_session_ids resume --session "$SESSION_NAME" --agent "$AGENT" \
  --workspace "$(mam_abs_workspace "$WORKSPACE")" \
  --herdr-alive "$HERDR_ALIVE" --pane-pid "$PANE_PID"