#!/bin/bash
set -u
mkdir -p ~/.config/homedir-backup 2>/dev/null

echo Doing self-update
if ! git pull ; then
  echo "Git pull failed.. continuing in unknown state..."
fi

# Creates Directories & linkes files to this repo
function linkfiles {
  for file in $@; do
    name=$(basename $file)
    dir=$(dirname $file)
    if [ "$dir" == "dotfiles" ] ; then
      targetdir=""
    elif [ "$( dirname $dir | cut -f1 -d/)" == "configfile" ] ; then
      targetdir="config/$(echo $dir | cut -f2- -d/)/"
      mkdir -p "${HOME}/.${targetdir}"
    else
      targetdir="$dir/"
    fi

    if [ -f hosts/$(hostname -s)/${name} ] ; then
      dotfile="$(pwd)/hosts/$(hostname -s)/${name}"
    else
      dotfile="$(pwd)/$dir/${name}"
    fi

    # Backup local dotfiles:
    if  [ ! -L ~/.${targetdir}${name} ] ; then
      mkdir -p ~/.config/homedir-backup/${targetdir}
      mv -v "${HOME}/.${targetdir}${name}" ~/.config/homedir-backup/${targetdir}
    fi

    # Fix broken links
    if [ -L ~/.${targetdir}${name} ] ; then
      rm -f "${HOME}/.${targetdir}${name}"
    fi

    ln -s "$dotfile" "${HOME}/.${targetdir}${name}"
  done
}

linkfiles 'dotfiles/*'

# Clones repo to dir, or pulls repo if dir already exists
# Params:
#   git-repo-url target-dir [clone options]
function git-sync {
  repo=$1
  dir=$2
  shift; shift

  if [ ! -d "$dir" ] ; then
    mkdir -p "$dir"
    git clone --depth=1 $@ "$repo" "$dir"
    return 0
  else
    git -C "$dir" pull
    return 1
  fi
}

linkfiles 'dotfiles/*'

# NeoVIM & NvChad
git-sync https://github.com/NvChad/NvChad ~/.config/nvim
nvim +'hi NormalFloat guibg=#1e222a' +PackerSync

# Link Config Directories
linkfiles 'config/*'

# Link Config Files
for file in $(find configfile -type f) ; do
  linkfiles $file
done

# Install powerline if possible
if type pip3 &>/dev/null ; then
  pip3 install --user -U -r requirements.txt
fi

# Install vundle plugin manager & plugins
mkdir -p ~/.vim/bundle 2>/dev/null

# Legacy Vim
if git-sync https://github.com/VundleVim/Vundle.vim.git ~/.vim/bundle/Vundle.vim; then
  vim -c ":PluginInstall" -c ":q" -c ":q"
else
  vim -c ":PluginUpdate" -c ":q" -c ":q"
fi

# Tmux Plugin Manager
mkdir -p ~/.tmux/plugins 2>/dev/null
git-sync https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm

# Copy fonts
mkdir -p ~/.fonts/
cp fonts/* ~/.fonts/

# Inject bashrc sourcing
grep -qE "^source.*$(pwd)/bashrc" ~/.bashrc || echo "source $(pwd)/bashrc" >> ~/.bashrc

echo
echo All Done. Happy Hacking.
exit 0