#!/bin/bash

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

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

# binaries install path
PREFIX_PATH=$PRJ_PATH/install

# 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
}

do_build()
{
    pr_warn "build all the project..."

    for dir in */; do
        [ -d "$dir" ] || continue

        if [ -x "$dir/build.sh" ]; then
            (
                cd "$dir" || exit 1
                ./build.sh
            )
        fi
    done

    pr_info "==== Build: done ===="
}

do_clean()
{
    pr_warn "clean all the project..."

    for dir in */; do
        [ -d "$dir" ] || continue

        if [ -x "$dir/build.sh" ]; then
            (
                cd "$dir" || exit 1
                ./build.sh -c
            )
        fi
    done

    pr_info "==== Clean: install ===="
    rm -rf $PREFIX_PATH
}

do_cross()
{
    pr_warn "update crosstool $CROSS_COMPILE..."

    for dir in */; do
        [ -d "$dir" ] || continue

        if [ -x "$dir/build.sh" ]; then
            echo "==== update: ${dir%/} ===="
            (
                cd "$dir" || exit 1
                sed -i "s|^CROSS_COMPILE=.*|CROSS_COMPILE=${CROSS_COMPILE}|g" build.sh
            )
        fi
    done
}

case "$1" in
    build)
        do_build
        ;;
    clean)
        do_clean
        ;;
    cross)
        do_cross
        ;;
    *)
        echo "Usage: $0 {build|clean|cross}"
        exit 1
        ;;
esac