#!/bin/bash
set -u

DEVICES_LIST="$(adb devices -l)"
echo "${DEVICES_LIST}"

LOG_ROOT="log_capture/session_stats/"
CLEAN_LOGS="no"

while true; do
  yn=""
  read -rp "clean logs on device after fetch? [Y/n] " yn
  yn="${yn,,}"
  case "${yn}" in
    y|yes)
      CLEAN_LOGS="yes"
      break
      ;;
    n|no)
      break
      ;;
    "")
      CLEAN_LOGS="yes"
      break
      ;;
    *)
      echo "answer Y(es) or N(o) (y/n or yes/no)"
      ;;
  esac
done

echo "Known devices list:"
echo "${DEVICES_LIST}"

while IFS= read -r DEV; do
  [[ -z "${DEV}" ]] && continue
  [[ "${DEV}" == List* ]] && continue

  SERIAL="$(awk '{print $1}' <<<"${DEV}")"
  STATE="$(awk '{print $2}' <<<"${DEV}")"
  [[ "${STATE}" != "device" ]] && continue

  LOG_PATH="${LOG_ROOT}/${SERIAL}/"
  echo "------------ dumping in ${LOG_PATH}"
  mkdir -p "${LOG_PATH}"

  mapfile -t FILES < <(adb -s "${SERIAL}" shell run-as com.foxx.androidcast ls files/session_stats/ </dev/null \
    | tr -d '\r' | grep -v '^$' || true)

  if ((${#FILES[@]} == 0)); then
    echo "  (no session_stats files on ${SERIAL})"
    continue
  fi

  for f in "${FILES[@]}"; do
    adb -s "${SERIAL}" exec-out run-as com.foxx.androidcast cat "files/session_stats/${f}" </dev/null \
      > "${LOG_PATH}/${f}"
    if [[ "${CLEAN_LOGS}" == "yes" ]]; then
      adb -s "${SERIAL}" shell run-as com.foxx.androidcast rm -f "files/session_stats/${f}" </dev/null
    fi
  done
done <<<"${DEVICES_LIST}"

echo "showing all the logs in ${LOG_ROOT} folder and derivatives:"

ls -a ${LOG_ROOT}/*/*

echo "run './gradlew :session-studio:run' to analyze logs; find the latest logs in ${LOG_ROOT}"