#!/usr/bin/env bash

# This ensures that the entire script is downloaded before execution
{

if ! which git >>/dev/null ; then
  echo "Error: git is not installed"
  exit 1
fi

# Exit the script if any errors are encountered
#set -e

# Change this url to point to your repo if you made customizations
GIT_REPO="git://github.com/alopexc0de/dotfiles.git"

DOTFILES=${HOME}/dotfiles
POSTINSTALL_SCRIPT=${HOME}/.dotfiles.postinst

if [ ! -e "${POSTINSTALL_SCRIPT}" ]; then
    echo "No post install script found."
    echo "Optionally create one at ${POSTINSTALL_SCRIPT} and rerun this script"
fi

# Attempts to safely install the configs as symlinks (backing up existing ones)
function symlink() {
    src=$1
    dest=$2

    if [ -e $dest ]; then
        if [ -L $dest ]; then
            # Already symlinked -- I'll assume correctly.
            return
        else
            # Rename files with a ".old" extension.
            echo "$dest already exists, renaming to $dest.old"
            backup=$dest.old
            if [ -e $backup ]; then
                echo "Error: $backup already exists. Please delete or rename it."
                exit 1
            fi
            mv -v $dest $backup
        fi
    fi
    echo "Linking $(basename $src)..."
    ln -sf $src $dest
}

read -p "Press enter to install my dotfiles " WAIT_FOR_INPUT

# If the update script exists, try to do a normal update
if [ -x "${DOTFILES}/check_for_upgrade.sh" ]; then
    source "${DOTFILES}/.environment"
    env DOTFILES=${DOTFILES} DISABLE_UPDATE_PROMPT=false zsh -f ${DOTFILES}/check_for_upgrade.sh
else
    echo "Cloning dotfiles to ${DOTFILES}"
    rm -rf "${DOTFILES}"
    git clone --recurse-submodules -j$(nproc) "${GIT_REPO}" "${DOTFILES}"
fi

echo "Installing Oh-My-ZSH"
echo "When the install is done, type \"exit\" to continue installing dotfiles"
sh -c "$(curl -fsSL https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"

echo "Changing default shell to ZSH..."
chsh -s /usr/bin/zsh

echo "Building i3 configuration"
${DOTFILES}/bin/build-i3-config

echo "Installing user binary directory to ~/bin"
symlink ${DOTFILES}/bin ${HOME}/bin

echo "Linking Configuration files..."

# All the dotfiles that live in the home dir directly
symlink ${DOTFILES}/.aliases                 ${HOME}/.aliases
symlink ${DOTFILES}/.bashrc                  ${HOME}/.bashrc
symlink ${DOTFILES}/.dmenurc                 ${HOME}/.dmenurc
symlink ${DOTFILES}/.dmrc                    ${HOME}/.dmrc
symlink ${DOTFILES}/.editorconfig            ${HOME}/.editorconfig
symlink ${DOTFILES}/.environment             ${HOME}/.environment
symlink ${DOTFILES}/.functions               ${HOME}/.functions
symlink ${DOTFILES}/.gitconfig               ${HOME}/.gitconfig
symlink ${DOTFILES}/.stalonetrayrc           ${HOME}/.stalonetrayrc
symlink ${DOTFILES}/.tmux.conf               ${HOME}/.tmux.conf
symlink ${DOTFILES}/.vimrc                   ${HOME}/.vimrc
symlink ${DOTFILES}/.zshrc                   ${HOME}/.zshrc

# Install ~/.config stuff
symlink ${DOTFILES}/.config/.rofi            ${HOME}/.config/.rofi
symlink ${DOTFILES}/.config/compton          ${HOME}/.config/compton
symlink ${DOTFILES}/.config/dunst            ${HOME}/.config/dunst
symlink ${DOTFILES}/.config/gtk-2.0          ${HOME}/.config/gtk-2.0
symlink ${DOTFILES}/.config/gtk-3.0          ${HOME}/.config/gtk-3.0
symlink ${DOTFILES}/.config/htop             ${HOME}/.config/htop
symlink ${DOTFILES}/.config/i3               ${HOME}/.config/i3
symlink ${DOTFILES}/.config/morc_menu        ${HOME}/.config/morc_menu
symlink ${DOTFILES}/.config/nitrogen         ${HOME}/.config/nitrogen
symlink ${DOTFILES}/.config/ranger           ${HOME}/.config/ranger
symlink ${DOTFILES}/.config/terminator       ${HOME}/.config/terminator
symlink ${DOTFILES}/.config/viewnior         ${HOME}/.config/viewnior
symlink ${DOTFILES}/.config/volumeicon       ${HOME}/.config/volumeicon
symlink ${DOTFILES}/.config/mimeapps.list    ${HOME}/.config/mimeapps.list

echo "Installing VIM Pathogen..."
mkdir -p ${HOME}/.vim/{autoload,bundle}
curl -LSs https://tpo.pe/pathogen.vim -o ${HOME}/.vim/autoload/pathogen.vim

echo "Installing VIM Sensible..."
git clone git://github.com/tpope/vim-sensible.git ${HOME}/.vim/bundle/vim-sensible

echo "Installing VIM Iceberg theme"
cd /tmp
wget https://www.vim.org/scripts/download_script.php?src_id=25718 -O iceberg.zip
unzip iceberg.zip
cp -r iceberg.vim/{autoload,colors} ${HOME}/.vim/
rm -rf /tmp/iceberg*
cd ${HOME}

if [ -e "$POSTINSTALL_SCRIPT" ]; then
    echo "Running post install..."
    source "$POSTINSTALL_SCRIPT"
fi

echo "Install done."
echo "Log out and back in again for everything to take effect."

} # Ensures that the whole script is downloaded before execution