#!/usr/bin/env bash

# package_dirs records directories of all installed packages. It is used
# to help clean unused packages.
package_dirs=()

update_package () {
    name=$1
    remote_url=$2
    load_type=$3

    package_dir="$HOME/.vim/pack/vendor/$load_type/$name"
    package_dirs+=($package_dir)
    if [ ! -d $package_dir ]; then
        echo "$name : Installing ... "
        mkdir -p $package_dir
        git clone --depth 1 $remote_url $package_dir && echo "$name : Done" || echo "$name : FAIL"
    else
        cd $package_dir
        echo "$name : Updating ... "
        git pull && echo "$name : Done" || echo "$name : FAIL"
    fi
}

clean () {
    for load_type in 'opt' 'start'; do
        for package_name in $(ls $HOME/.vim/pack/vendor/$load_type); do
            package_dir=$HOME/.vim/pack/vendor/$load_type/$package_name
            if [[ ! " ${package_dirs[*]} " =~ " ${package_dir} " ]]; then
                read -r -p "rm -rf $package_dir? [y/N]: " response
                response=${response,,}
                if [[ "$response" =~ ^(yes|y)$ ]]; then
                    rm -rf $package_dir
                fi
            fi
        done
    done
}

update_package "nnn.vim" "git@github.com:mcchrish/nnn.vim.git" "opt"

clean