#!/bin/bash

checkout_dir=$HOME/.dofiles
script_dir=$checkout_dir/dotfiles
dots_dir=$checkout_dir/dotfiles/dots
repo="https://git.capella.pro/capella/dotfiles.git"

set -ex
trap popd EXIT

mkdir -pv $checkout_dir
pushd $checkout_dir


sub_help(){
    echo "Usage: $ProgName <subcommand> [options]\n"
    echo "Subcommands:"
    echo "    sync <dot_file_to_add>    add a dotfyle to sync"
    echo ""
    echo "For help with each subcommand run:"
    echo "$ProgName <subcommand> -h|--help"
    echo ""
}

sub_sync(){
    if [[ ! -d $checkout_dir/dotfiles/.git ]]; then
        git clone $repo
        pushd dotfiles
        git submodule init
        popd
    fi

    cd $script_dir
    git pull origin master
    git checkout master
    git submodule update

    if [ ! -z "$1" ]; then
        real_path=$(realpath $HOME/$1)
        to_copy=${real_path#*$HOME}
        cp -R $real_path $dots_dir/$to_copy
        rm -rf $real_path
        echo "${to_copy/\//}" >> ../to_sync
    fi

    while read p; do
        file="$dots_dir/$p"
        git add $file
    done < $script_dir/to_sync
    git add start to_sync

    if git commit -am "$(date)"; then
        git remote add origin $repo || true
        git push -u origin master
    fi

    while read p; do
        destination="$HOME/$p"
        rm -rf $destination
        ln -s "$dots_dir/$p" $destination
    done < $script_dir/to_sync
}


subcommand=$1
case $subcommand in
    "" | "-h" | "--help")
        sub_help
        ;;
    *)
        shift
        sub_${subcommand} $@
        if [ $? = 127 ]; then
            echo "Error: '$subcommand' is not a known subcommand." >&2
            echo "       Run '$ProgName --help' for a list of known subcommands." >&2
            exit 1
        fi
        ;;
esac