#!/usr/bin/bash

BASENAME='root34'
MAX_EMU=10
LOG_DIR=${1:-$(mktemp -d)}
START_PORT=5554

# kill all emulators:
#   for e in $(adb devices | grep emulator | sed 's/\t.*//'); do adb -s $e emu kill; done
# and for the few that refuse to die after a few moments:
#   pkill -f /home/android/Android/Sdk/emulator/qemu/linux-x86_64/qemu-system-x86_64-headless

echo "Emulator Log DIR: ${LOG_DIR}"

for i in $(seq 1 "${MAX_EMU}"); do
  CONSOLE_PORT=$((START_PORT++))
  ADB_PORT=$((START_PORT++))
  adb devices | grep -q "emulator-${CONSOLE_PORT}"
  if [ $? -ne 0 ]
  then
    echo "start ${BASENAME}-${i} (emulator-${CONSOLE_PORT})"
    emulator -avd "${BASENAME}-${i}" -no-window -no-metrics -ports "${CONSOLE_PORT},${ADB_PORT}" > "${LOG_DIR}/emulator-${CONSOLE_PORT}.stdout" 2> "${LOG_DIR}/emulator-${CONSOLE_PORT}.stderr" &
    sleep 2
  fi
done