#!/bin/bash
# This shell script used to setup imx6ull build envrionment
#

LYFTP_PUB=http://wekei-iot.com:2211/imx/igkboard/tools/lintools

# display in yellow
function pr_warn() {
    echo -e "\033[40;33m --W-- $1 \033[0m\n"
}

# display in green
function pr_info() {
    echo -e "\033[40;32m --I-- $1 \033[0m\n"
}

if [ `id -u` != 0 ] ; then
    pr_warn "This shell script must be excuted as root privilege"
    exit;
fi

function prepare_instpath()
{
    if [ -w /apps -a -w /opt ] ; then
        pr_warn "Install path [/apps and /opt] already setup, skip it"
        return ;
    fi

    pr_info "/apps and /opt not writable, use chmod to give writable permissions"

    # QT build will installed to this path
    mkdir -p /apps && chmod 777 /apps

    # buildroot crosstool will installed to this path
    chmod 777 /opt/
}

function install_systools()
{
    if command -v jq > /dev/null 2>&1 ; then
        pr_warn "All system tools already installed, skip it"
        return 0;
    fi

    pr_warn "start apt install system tools(commands)"

    systools="coreutils jq wget curl tree gawk sed unzip cpio lz4 lzop zstd rsync kmod kpartx tmux \
        desktop-file-utils iputils-ping xterm diffstat chrpath asciidoc docbook-utils help2man \
        build-essential gcc g++ make cmake automake groff socat flex texinfo bison texi2html \
        git cvs subversion mercurial autoconf autoconf-archive \
        python2 python3 python3-pip python3-pexpect python3-git python3-jinja2 libsdl1.2-dev \
        lib32z1 libssl-dev libncurses-dev lib32ncurses-dev libgl1-mesa-dev libglu1-mesa-dev \
        "

    apt update > /dev/null 2>&1
    apt install -y $systools
}

function install_devtools()
{
    if command -v arm-linux-gnueabihf-gcc > /dev/null 2>&1 ; then
        pr_warn "All development tools already installed, skip it"
        return 0;
    fi

    pr_info "start apt install devlopment tools(commands)"

    devtools="u-boot-tools mtd-utils device-tree-compiler gcc-arm-linux-gnueabihf g++-arm-linux-gnueabihf \
        binfmt-support qemu qemu-user-static debootstrap debian-archive-keyring "

    apt install -y $devtools

    #sudo update-alternatives --install /usr/bin/arm-linux-gnueabihf-gcc arm-linux-gnueabihf-gcc /usr/bin/arm-linux-gnueabihf-gcc-9 10
}

function install_buildroot()
{
    BUILDROOT_PATH=/opt/buildroot
    BUILDROOT_NAME=cortexA7

    BUILDROOT_VER=buildroot-2021.02.7-cortexA7
    BUILDROOT_TAR=${BUILDROOT_VER}.tar.bz2
    BUILDROOT_DLADDR=${LYFTP_PUB}/$BUILDROOT_TAR

    if [ -d ${BUILDROOT_PATH}/${BUILDROOT_NAME} ] ; then
        pr_warn "Buildroot already installed to $BUILDROOT_PATH/$BUILDROOT_NAME"
        return 0;
    fi

    mkdir -p ${BUILDROOT_PATH}

    if [ ! -f $BUILDROOT_TAR ] ; then
        pr_info "download $BUILDROOT_VER now..."
        wget -c $BUILDROOT_DLADDR
    fi

    pr_info "install $BUILDROOT_VER to $BUILDROOT_PATH/$BUILDROOT_NAME now..."
    tar -xjf ${BUILDROOT_TAR} -C ${BUILDROOT_PATH}

    $BUILDROOT_PATH/$BUILDROOT_NAME/bin/arm-linux-gcc -v

    pr_info "Cross compiler: $BUILDROOT_PATH/$BUILDROOT_NAME/bin/arm-linux-"

    rm -f ${BUILDROOT_TAR}
}

# NXP document suggest cross compiler from ARM Developer:
#   https://developer.arm.com/downloads/-/arm-gnu-toolchain-downloads
function install_crosstool()
{
    ARMTOOL_VER=10.3-2021.07
    ARMTOOL_NAME=gcc-arm-$ARMTOOL_VER
    ARMTOOL_PACK=${ARMTOOL_NAME}-`uname -p`-arm-none-linux-gnueabihf
    ARMTOOL_URL=https://developer.arm.com/-/media/Files/downloads/gnu-a/$ARMTOOL_VER/binrel/

    if [ -d /opt/$ARMTOOL_NAME ]  ; then
        pr_info "$ARMTOOL_NAME crosstool already installed, skip it"
        return 0;
    fi

    pr_info "start download cross compiler from ARM Developer"

    if [ ! -s $ARMTOOL_PACK.tar.xz ] ; then
        wget $ARMTOOL_URL/$ARMTOOL_PACK.tar.xz
    fi

    tar -xJf $ARMTOOL_PACK.tar.xz -C /opt
    rm -f $ARMTOOL_PACK.tar.xz

	mv /opt/$ARMTOOL_PACK /opt/$ARMTOOL_NAME

    /opt/$ARMTOOL_NAME/bin/arm-none-linux-gnueabihf-gcc -v
    pr_info "cross compiler installed to \"/opt/$ARMTOOL_NAME\" successfully"
}

echo ""

prepare_instpath

install_systools

install_devtools

install_crosstool

#install_buildroot