#! /bin/bash

set -e

function get_changed_files() {
    local add_modified
    local renamed
    add_modified=$(git diff --cached --name-status |egrep '*\.(cpp|h|hpp|cpp.inc|h.inc)'|awk '($1 != "D" && $1 !~ /R.+/) { print $2 }')
    renamed=$(git diff --cached --name-status |egrep '*\.(cpp|h|hpp|cpp.inc|h.inc)'|awk '$1 ~ /^R.+/ { print $3 }')

    echo $add_modified | sed '/^[[:space:]]*$/d'
    echo $renamed | sed '/^[[:space:]]*$/d'
}

function fix_includes(){
    local files=$(get_changed_files)

    if [[ "$files" ]];
    then
        echo "Fixing '#include' syntax...."
        sed -i -E '/^#include "(serene|\.)/!s/^.include \"(.*)\"/#include <\1>/g' $files
    fi
}

function clang_format_staged() {
    local files=$(get_changed_files)

    if [[ "$files" ]];
    then
        for file in $(get_changed_files)
        do
            echo "Reformatting $file..."
            clang-format -i $file
        done
    fi

}

function git_add_changes() {
    local files=$(get_changed_files)

    if [[ "$files" ]];
    then
        git add $files
    fi
}


fix_includes
clang_format_staged
git_add_changes