#!/bin/bash
set -e

SYSTEM_NAME="$(uname -s)"
MAKE="make"
GIT="git"
GCC="gcc"
CLANG="clang"

if [ "$SYSTEM_NAME" = "OpenBSD" ]
then
    MAKE="$(which gmake)"
fi

# arg0: Output path.
# arg1: Command for downloading
try_fetch() {
    if [[ -d $2 ]]
    then
        echo "try_fetch: Skipping $2: already exists"
    else
        ${@:1}
    fi
}

fetch() {
    mkdir -p cc/
    try_fetch "git clone https://github.com/limine-bootloader/limine.git --branch=v9.3.0-binary --depth=1" "shim/limine"
    try_fetch "git clone https://github.com/EthosZero/toolchain --depth=1" "cc/toolchain"
}

build_limine() {
    $MAKE -C shim/limine/
}

build_omar() {
    $MAKE -C tools/omar
}

build() {
    build_limine
    build_omar
}

echo "----------------------------------"
echo
echo "      Fetching sources...        "
echo
echo "----------------------------------"
echo -e "\n"

fetch           # Fetch sources

echo "----------------------------------"
echo
echo "      Building sources...        "
echo
echo "----------------------------------"
echo -e "\n"

make root
build           # Build sources