#!/bin/bash

set -e

un="$(uname)"
case "${un}" in
  Linux)
    ostype=linux
    homebrew_prefix_default=/home/linuxbrew/.linuxbrew
    ;;
  Darwin)
    ostype=macos
    if [[ "$(uname -m)" == "arm64" ]]
    then
      homebrew_prefix_default=/opt/homebrew
    else
      homebrew_prefix_default=/usr/local
    fi
esac

# Install homebrew if it doesn't exist
if [[ ! -d "${homebrew_prefix_default}" ]]
then
  CI=1 /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
fi

if [ -n $CODESPACES ]
then
  # Codespaces has a .gitconfig already setup, but in order to take advantage of
  # the attributes set in /etc/gitconfig we have to explicitly include the path.
  git config --global include.path /etc/gitconfig

  dotfiles_dir="$(pwd -P)"

  # Symlink all of the dotfiles to the $HOME directory
  for dotfile in .*; do
    # Skip . and .. directories
    echo $dotfile | egrep -q '^(\.+)$' && continue
    
    source="$dotfiles_dir/$dotfile"
    destination="$HOME/$dotfile"

    # If the directory already exists in the $HOME directory then we'll
    # just symlink the contents rather than the directory itself.
    # Basically this is just ~/.config
    if [ -d $destination ] && ! [ -L $destination ]
    then
      for file in $source/*
      do
        ln -sfv "$file" "$destination"
      done
      continue
    fi

    [ -d $dotfile ] && dotfile="$dotfile/"

    if [ -L $destination ] && [ -d $dotfile ]
    then
      ln -sfv "$source" "$destination"
    else
      rm -rv "$destination" 2>/dev/null
      ln -sv "$source" "$destination"
    fi
  done

  # Bring in all of our submodule dependencies
  git submodule update  --recursive --init
elif [ ! -d $HOME/.dotfiles ]
then
  # https://www.atlassian.com/git/tutorials/dotfiles
  git clone --bare https://github.com/tarebyte/dotfiles.git $HOME/.dotfiles

  function dconfig {
    /usr/bin/git --git-dir=$HOME/.dotfiles/ --work-tree=$HOME $@
  }

  dconfig checkout
  dconfig status.showUntrackedFiles no

  # Bring in all of our submodule dependencies
  dconfig submodule update --recursive --init
fi

alias brew="$homebrew_prefix_default/bin/brew"
brew bundle --file $HOME/.homebrew/Brewfile

if [ "${ostype}" == macos ]
then
  brew bundle --file $HOME/.homebrew/Brewfile.darwin
fi

homebrew_fish_path="${homebrew_prefix_default}/bin/fish"
alias fish=$homebrew_fish_path

echo $homebrew_fish_path | sudo tee -a /etc/shells
chsh -s $homebrew_fish_path

# Install fisher plugins
echo "curl -sL https://git.io/fisher | source && fisher update" | fish

# Set the theme
echo "base16-ocean" | fish

# Install Neovim packages via packer
echo "nvim --headless -c 'autocmd User PackerComplete quitall' -c 'PackerSync'" | fish

echo "All set!"