function get_os() {
    un=$(uname)

    if [[ "$un" = "Linux" ]] ; then
       echo -n "linux"
       return 0
    fi

    if [[ "$un" = "Darwin" ]] ; then
        echo -n "osx"
        return 0
    fi
}

OPERATING_SYSTEM=$(get_os)

# For a given file, return its corresponding project root.
function project_root() {
    pushd $(dirname "$1") 2>&1 > /dev/null
    out=$(git rev-parse --show-toplevel)
    ret="$?"    
    popd 2>&1 > /dev/null

    if [[ "$ret" != "0" ]] ; then
        echo -n ""
        return 1
    fi
    
    echo -n "$out"
    return 0
}

# When run from a dir with would-format configured, return
# would-format's own directory
wf_root() {
    arg=$(pwd)/bin/would-reformat.sh

    pr=$(project_root $arg)

    link="$pr/bin/would-reformat.sh"

    original0=$(resolve_symlink "$link")
    original=$(normalize_dir_of_file $original0)

    out="$original"

    echo "$out"
    return 0
}

# FIXME: Make this bail if it fails
function normalize_dir_of_file() {
    out0=$(readlink -m "$1")

    out=$(dirname "$out0")

    echo -n "$out"
    return 0
}

function resolve_symlink() {
    if [[ "$OPERATING_SYSTEM" = "osx" ]] ; then
        out=$(readlink "$1")
    else 
        out=$(readlink -f "$1")
    fi 

    echo "$out"
}

function custom_formatter() {
    root="$1"
    file_type="$2"

    maybe="$root/.would-reformat/$file_type"
    if [[ -f "$maybe" ]] ; then
        echo "$maybe"
        return
    fi
        
    echo "use-default"
}

# FIXME: This needs to be made customizable
function sniff_file_type() {
    ff=$1
    shift
    file_type=

    if [[ $ff == *.py ]]; then
        file_type="python"
    elif [[ $ff == *.js ]]; then
        file_type="javascript"
    elif [[ $ff == *.ts ]]; then
        file_type="typescript"
    elif [[ $ff == *.vue ]]; then
        file_type="vue"
    elif [[ $ff == *.css ]]; then
        file_type="css"
    elif [[ $ff == *.php ]]; then
        file_type="php"
    elif [[ $ff == *.html ]]; then
        file_type="html"
    elif [[ $ff == *.jsx ]]; then
        file_type="jsx"
    elif [[ $ff == *.tsx ]]; then
        file_type="tsx"
    elif [[ $ff == *.css ]] ; then
        file_type="css"
    elif [[ $ff == *.scss ]] ; then
        file_type="scss"
    elif [[ $ff = *.sh ]]; then
        file_type="sh"
    elif [[ $ff = *.go ]] ; then
        file_type="golang"
    elif [[ $ff = *.dart ]] ; then
        file_type="dart"
    fi

    echo $file_type
}


function wrflog() {
    echo "$@" >> /tmp/wrflog
}