# install tools
install_tools () {
    echo "Installing tools, you MAY grant the operation by click the button..."
    sleep 2
    set -e
    (
        set -x
        adb install -r apk/Termux_v0.118.0_apkpure.com.apk
        adb install -r apk/ru.meefik.busybox_46.apk
        adb install -r apk/com.termux.boot_7.apk
    )
}
setup_auto_boot () {
    echo "Setup experimental Termux:boot for auto-start"
    set -e
    (
        set -x
        TX_UID=`adb shell su - stat -c "%U" /data/data/com.termux/files/home|xargs`
        adb shell 'su - mkdir -p /data/data/com.termux/files/home/.termux/boot/'
        adb shell 'su - mv -f /sdcard/crond.sh /data/data/com.termux/files/home/.termux/boot/'
        adb shell 'su - chmod 555 /data/data/com.termux/files/home/.termux/boot/crond.sh'
        adb shell "su - chown -R ${TX_UID}:${TX_UID} /data/data/com.termux/files/home/.termux/boot"
    )
    echo "Success, launch Termux:boot once to activiate it."
}
copy_scripts () {
    set -e
    adb push exec.sh.in /sdcard/wechat/exec.sh
    adb push crontab /sdcard/
    adb push start.sh /sdcard/start.sh
    adb push start_fg.sh /sdcard/crond.sh
    set +e
    adb shell "su - [ -d /data/data/com.termux/files/home ]"
    if [ "$?" != "0" ]; then
        read -p "Launch Termux for its bootstraping, press any key when completed"
    fi
    set -e
    adb shell 'su - mv -f /sdcard/start.sh /data/data/com.termux/files/home/start.sh'
    adb shell 'su - chmod 555 /data/data/com.termux/files/home/start.sh'
    echo "Final step: install Busybox MANUALLY and execute ./start.sh in Termux at every time startup"
    setup_auto_boot
}
HAS_DEVICE=`adb devices|wc -l|xargs`
if [ "$HAS_DEVICE" = "3" ]; then
    echo "Good, a device has been detected"
    install_tools
    copy_scripts
else
    echo "`adb devices` did not show exactly one device, check and try again"
fi