#!/bin/bash

# library name and version
# Official: https://zbar.sourceforge.net/
LIB_NAME=zbar-0.10
PACK_SUFIX=tar.bz2

# LingYun source code FTP server
LYFTP_SRC=http://master.weike-iot.com:2211/src/

# library download URL address
LIB_URL=$LYFTP_SRC

# Cross compiler for cross compile on Linux server
CROSS_COMPILE=/opt/gcc-aarch32-10.3-2021.07/bin/arm-none-linux-gnueabihf-

# compile jobs
JOBS=`cat /proc/cpuinfo |grep "processor"|wc -l`

# this project absolute path
PRJ_PATH=$(cd $(dirname "${BASH_SOURCE[0]}") && pwd)

# top project absolute path
TOP_PATH=$(realpath $PRJ_PATH/..)

# binaries install path
PREFIX_PATH=$TOP_PATH/install
BIN_PATH=$PREFIX_PATH/bin
LIB_PATH=$PREFIX_PATH/lib
INC_PATH=$PREFIX_PATH/include

# check installed or not file
INST_FILE=$PREFIX_PATH/lib/libzbar.so

# shell script will exit once get command error
set -e

#+-------------------------+
#| Shell script functions  |
#+-------------------------+

function pr_error() {
    echo -e "\033[40;31m $1 \033[0m"
}

function pr_warn() {
    echo -e "\033[40;33m $1 \033[0m"
}

function pr_info() {
    echo -e "\033[40;32m $1 \033[0m"
}

function check_result()
{
    if [ $? != 0 ] ; then
        pr_error "$1"
    fi
}
# decompress a packet to destination path
function do_unpack()
{
    tarball=$1
    dstpath=`pwd`

    if [[ $# == 2 ]] ; then
        dstpath=$2
    fi

    pr_info "decompress $tarball => $dstpath"

    mkdir -p $dstpath
    case $tarball in
        *.tar.gz)
            tar -xzf $tarball -C $dstpath
            ;;

        *.tar.bz2)
            tar -xjf $tarball -C $dstpath
            ;;

        *.tar.xz)
            tar -xJf $tarball -C $dstpath
            ;;

        *.tar.zst)
            tar -I zstd -xf $tarball -C $dstpath
            ;;

        *.tar)
            tar -xf $tarball -C $dstpath
            ;;

        *.zip)
            unzip -qo $tarball -d $dstpath
            ;;

        *)
            pr_error "decompress Unsupport packet: $tarball"
            return 1;
            ;;
    esac
}

function do_export()
{
    BUILD_ARCH=$(uname -m)
    if [[ $BUILD_ARCH =~ "arm" ]] ; then
        pr_warn "local($BUILD_ARCH) compile $LIB_NAME"
        return ;
    fi

    pr_warn "cross(${CROSS_COMPILE}) compile $LIB_NAME"

    # export cross toolchain
    export CC=${CROSS_COMPILE}gcc
    export CXX=${CROSS_COMPILE}g++
    export AS=${CROSS_COMPILE}as
    export AR=${CROSS_COMPILE}ar
    export LD=${CROSS_COMPILE}ld
    export NM=${CROSS_COMPILE}nm
    export RANLIB=${CROSS_COMPILE}ranlib
    export OBJDUMP=${CROSS_COMPILE}objdump
    export STRIP=${CROSS_COMPILE}strip

    # export cross configure
    export CONFIG_CROSS=" --build=i686-pc-linux --host=arm-linux "

    # Clear LDFLAGS and CFLAGS
    export LDFLAGS=
    export CFLAGS=
}

function do_fetch()
{
    if [ -e ${INST_FILE} ] ; then
        pr_warn "$LIB_NAME compile and installed alredy"
        exit ;
    fi

    if [ -d $LIB_NAME ] ; then
        pr_warn "$LIB_NAME fetch already"
        return ;
    fi

    if [ ! -f ${LIB_NAME}.${PACK_SUFIX} ] ; then
        wget ${LIB_URL}/${LIB_NAME}.${PACK_SUFIX}
        check_result "ERROR: download ${LIB_NAME} failure"
    fi

    do_unpack ${LIB_NAME}.${PACK_SUFIX}
}

function do_build()
{
    cd $LIB_NAME

    do_export

    CFLAGS="-DMAGICKCORE_HDRI_ENABLE=1 -DMAGICKCORE_QUANTUM_DEPTH=16" \
    ./configure --host=arm-linux --enable-static --enable-shared --prefix=$PREFIX_PATH \
    --without-gtk --without-python --without-qt --without-x --without-java --disable-video \
    --with-imagemagick=${PREFIX_PATH}/ --without-graphicsmagick \
    MAGICK_CFLAGS=-I${PREFIX_PATH}//include/ImageMagick-6 \
    MAGICK_LIBS="-L${PREFIX_PATH}/lib -lMagickWand-6.Q16 -lMagickCore-6.Q16 -lm -lz -L`pwd`/zbar/.libs/ -lzbar"

    #LIBS="-liconv"

    sed -i -e "s|^LIBS = -lpthread.*|LIBS = -lpthread -liconv|g" Makefile

    mkdir -p ./doc/man/
    touch ./doc/man/zbarimg.1
    touch ./doc/man/zbarcam.1
    make all && make install
    check_result "ERROR: compile ${LIB_NAME} failure"
}

function do_clean()
{
    rm -rf *${LIB_NAME}*
}

if [[ $# == 1 && $1 == -c ]] ;then
    pr_warn "start clean ${LIB_NAME}"
    do_clean
    exit;
fi

cd ../zlib/ && ./build.sh && cd -

cd ../iconv/ && ./build.sh && cd -

cd ../imageMagick && ./build.sh  && cd -

cd $PRJ_PATH

do_fetch

do_build