setup_env

#!/bin/bash

ENV_DIR=`pwd`
DST_DIR=${HOME}
OS=`uname`
LOCAL_EXT=".local"
SYMLINK_EXT=".symlink"

function op_if_does_not_exist() {
    local op=$1
    local msg=$2
    local src="${ENV_DIR}/$3"
    local dst="${DST_DIR}/$4"
    if [ -e $dst ]
    then
        local symbol="$(tput setaf 1)✗$(tput sgr0)"
    else
        $op "${src}" "${dst}"
        local symbol="$(tput setaf 2)✓$(tput sgr0)"
    fi
    echo "${symbol} ${msg}: $3"
}

function link_if_does_not_exist() {
    op_if_does_not_exist "ln -sf" "Link" $1 $2
}

function link_hidden() {
    link_if_does_not_exist "$1" ".$1"
}

function link() {
    link_if_does_not_exist "$1" "$1"
}

function copy_if_does_not_exist() {
    op_if_does_not_exist "cp -n" "Copy" $1 $2
}

function copy_hidden() {
    copy_if_does_not_exist "$1" ".$1"
}

function op_on_topic() {
    local op=$1
    local ext=$2
    local topic=$3

    for rc in $(ls $topic/*$ext 2> /dev/null)
    do
        topicrc=`basename ${rc%$ext}`
        $op $rc .${topicrc}
    done
}

function copy_locals() {
    op_on_topic copy_if_does_not_exist $LOCAL_EXT $1
}

function link_symlinks() {
    op_on_topic link_if_does_not_exist $SYMLINK_EXT $1
}

function setup_topic() {
    local topic=$1

    # link the topic directory
    link_hidden $topic

    # copy the local templates
    copy_locals $topic

    # link the local symlinks
    link_symlinks $topic
}

function setup_bin() {
    mkdir ${DST_DIR}/bin 2> /dev/null
    for i in $(ls bin)
    do
        link bin/$i
    done
}

function setup_qt_app() {
    local app=$1

    # make the qt configuration directory if it does not exist
    qt_config_dir=".local/share"
    mkdir ${DST_DIR}/$qt_dir 2> /dev/null

    link_if_does_not_exist "$app" "$qt_config_dir/$app"
}

function install_app {
    local app=$1
    if command -v "$app" > /dev/null; then
        echo "$app already installed"
    elif command -v apt > /dev/null;  then
	sudo apt-get install "$app"
    elif command -v pacman > /dev/null; then
	sudo pacman -S "$app"
    else
        echo "Cannot run install_app, unsupported package manager."
    fi
}

function build_app {
    local app=$1
    local command=$2
    if command -v "$app" > /dev/null; then
        echo "$app already installed"
    else
        $command
    fi
}

function git_pull_or_clone {
    local repo=$1
    local dst=$2
    if [ -e $dst ]; then
        echo "Pulling $repo"
        $(cd $dst || git pull)
    else
        echo "Cloning $repo"
        git clone $repo $dst
    fi
}

function announce {
    local announcement=$1
    echo "*******************************************************************"
    echo "$announcement"
    echo "*******************************************************************"
}


# setup topics
setup_topic bash
setup_topic shell
setup_topic synergy
setup_topic tmux
setup_topic vim
setup_topic nvim
setup_topic git
setup_topic zsh
setup_topic input
setup_topic tmuxinator
[ $OS == "Linux" ] && setup_topic i3
[ $OS == "Linux" ] && setup_topic rofi
[ $OS == "Linux" ] && setup_topic polybar
[ $OS == "Linux" ] && setup_qt_app albert

setup_bin

# install applications with simple setup
install_app git
install_app tmux
install_app zsh
install_app cmake
install_app nodejs
install_app curl


# setup vim application
install_app vim
git_pull_or_clone https://github.com/VundleVim/Vundle.vim.git ~/.vim/bundle/Vundle.vim
vim +PlugInstall +qall

# setup fzf application
git_pull_or_clone https://github.com/junegunn/fzf.git ~/.fzf
build_app fzf ~/.fzf/install

# setup tmux application
git_pull_or_clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tmp
announce "Remember to start tmux and install plugins \"prefix+I\""