#!/usr/bin/env bash
set -euo pipefail

export DISPLAY=:99

DATA_DIR="/app/data"
REQ="${DATA_DIR}/.login_request.json"
STATUS="${DATA_DIR}/.login_status.json"
LOCK="${DATA_DIR}/.login_lock"

write_status () {
  local state="$1"
  local msg="$2"
  local ts
  ts="$(date -Iseconds)"
  python - <<PY > "$STATUS"
import json
print(json.dumps({"state":"$state","msg":"$msg","ts":"$ts"}, ensure_ascii=False))
PY
}

echo "[login] watcher running, data_dir=${DATA_DIR}"

while true; do
  if [ -f "$REQ" ]; then
    if [ -f "$LOCK" ]; then
      sleep 1
      continue
    fi

    touch "$LOCK"
    write_status "running" "login started. Open noVNC and finish XHS login."

    set +e
    python -c "from xhs_crawler_core import login_mode_auto; login_mode_auto('data/storage_state.json', headless=False)"
    rc=$?
    set -e

    if [ $rc -eq 0 ]; then
      write_status "success" "login finished. storage_state.json updated."
    else
      write_status "failed" "login failed (rc=${rc}). Check xhs-novnc logs."
    fi

    rm -f "$REQ"
    rm -f "$LOCK"
  fi
  sleep 1
done