#!/usr/bin/env bash
# Bring up the headless display, then hand over.
#
# Xvfb and openbox are started as children of PID 1 (tini), NOT of the agent's
# shell, so they outlive any single command. The RE container learned this the
# hard way: a display owned by a shell gets reaped when that shell exits, which
# reads as "Xvfb dies on its own every few minutes".
set -euo pipefail

: "${DISPLAY:=:97}"
: "${SCREEN_GEOMETRY:=1280x720x24}"

if ! xdpyinfo -display "$DISPLAY" >/dev/null 2>&1; then
  Xvfb "$DISPLAY" -screen 0 "$SCREEN_GEOMETRY" -nolisten tcp &
  for _ in $(seq 50); do
    xdpyinfo -display "$DISPLAY" >/dev/null 2>&1 && break
    sleep 0.1
  done
  openbox >/dev/null 2>&1 &
fi
echo "[entrypoint] display $DISPLAY ready ($SCREEN_GEOMETRY)"

if [ -d /reborn ]; then
  echo "[entrypoint] /reborn mounted read-only — HANDOFF.md is the contract"
fi

# Seed ~/.claude.json from the host's read-only copy, then stamp onboarding as
# complete. Claude Code re-runs its first-run wizard whenever
# lastOnboardingVersion differs from the installed version, so a container with a
# newer Claude than the host stops on the theme picker -- no error, no log line,
# and an unattended agent sits there forever.
if [ -f "$HOME/.claude.host.json" ] && [ ! -s "$HOME/.claude.json" ]; then
  cp "$HOME/.claude.host.json" "$HOME/.claude.json" 2>/dev/null || true
fi
# Same reason as .claude.json above: `credential.helper=store` rewrites this
# file by rename-over-target, which fails with EBUSY on a bind mount. Copy it to
# a writable path; nothing is ever written back to the host's file.
if [ -f "$HOME/.git-credentials.host" ]; then
  cp "$HOME/.git-credentials.host" "$HOME/.git-credentials" 2>/dev/null || true
  chmod 600 "$HOME/.git-credentials" 2>/dev/null || true
fi

CLAUDE_VER=$(claude --version 2>/dev/null | grep -oE '^[0-9][0-9.]*' || echo 0.0.0)
python3 /usr/local/bin/seed-claude-config.py "$HOME/.claude.json" "$CLAUDE_VER" \
        "$PWD" "${PROJECT_DIR:-/work}" "$HOME" || true
chmod 600 "$HOME/.claude.json" 2>/dev/null || true

# ── Claude Code ──────────────────────────────────────────────────────────────
# Without this the loop prompt is handed to `exec` as a command, and the whole
# markdown file is tried as a filename: exit 126, "File name too long".
if [ "${SYLPH_AUTONOMOUS:-0}" = "1" ]; then
  # Drop the image's default CMD first, or `claude` is handed the literal string
  # "bash" as its prompt and answers a question nobody asked.
  if [ "$#" -eq 1 ] && [ "$1" = "bash" ]; then
    set --
  fi
  # Remote Control registers the session with the account so the agent can be
  # reached from claude.ai -- the point of a detached run being that nobody is
  # sitting in front of it. The name is passed EXPLICITLY: the flag's value is
  # optional, so a bare --remote-control swallows the /loop prompt after it.
  if [ "${SYLPH_REMOTE:-1}" != "0" ]; then
    set -- --remote-control "${SYLPH_REMOTE_NAME:-sylpheed-port}" "$@"
    echo "[entrypoint] Remote Control as '${SYLPH_REMOTE_NAME:-sylpheed-port}'"
  fi
  # claude-autonomous wraps `claude --dangerously-skip-permissions` in a pty and
  # answers the one-time first-run gates. The Bypass Permissions disclaimer has
  # no config key that skips it, so unattended it hangs forever.
  set -- claude-autonomous "$@"
  echo "[entrypoint] starting Claude Code in $(pwd)"
fi

exec "$@"