#!/bin/bash
#
# Adapted from Junegunn Choi (junegunn.c@gmail.com)
# https://github.com/junegunn/dotfiles/blob/master/install

cd "$(dirname "${BASH_SOURCE[0]}")" || exit 1

check_command() {
  CMD=$1
  FOUND=$(command -v $CMD)
  if [ "$FOUND" == "" ] ; then
    echo "You don't have $CMD."
    exit 1
  else
    echo "Found $FOUND."
  fi
}
COMMANDS="git realpath curl"
for cmd in $COMMANDS ; do
  check_command $cmd
done

install_rust_app() {
  REPO=$1
  DIRNAME=$2
  BINARY=$3

  if [ ! -d "$DIRNAME" ] ; then
    git clone "$REPO" "$DIRNAME"
    pushd "$DIRNAME" 1>/dev/null
  else
    pushd "$DIRNAME" 1>/dev/null
    git pull
  fi
  cargo build --release
  cp -fv $PWD/target/release/$BINARY ~/bin/
  cargo clean
  popd 1>/dev/null
}

BASE=$(pwd)
EXA_VER=

# RC files

mkdir -pv bak
for rc in *rc *profile tmux.conf bashrc.d mutt ; do
  if [ ! -r $rc ] ; then
    continue
  fi
  [ "$(realpath ~/."$rc")" == "$BASE/$rc" ] 
  if [ $? -ne 0 ] ; then
    [ -e ~/."$rc" ] && mv -v ~/."$rc" bak/."$rc"
    ln -sfv "$BASE/$rc" ~/."$rc"
  fi
done

if [ "$(which cargo)" == "" ] ; then
  # Install Cargo, in order to install exa etc.
  (curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh) || exit 1
  source $HOME/.cargo/env
else
  # Assume that if we have Cargo we have rustup too.
  rustup update
fi

mkdir -p ~/src/

# git-prompt
# if [ ! -e ~/.git-prompt.sh ]; then
#   curl https://raw.githubusercontent.com/git/git/master/contrib/completion/git-prompt.sh -o ~/.git-prompt.sh
# fi

# scripts
mkdir -p ~/bin
for bin in $BASE/bin/*; do
  BIN_NAME=$(basename $bin)
  [ $(realpath ~/bin/$BIN_NAME) == $bin ] 
  if [ $? -ne 0 ] ; then
    ln -svf "$bin" ~/bin
  fi
done

if [ "$(uname -s)" == 'Darwin' ]; then
  # Homebrew
  [ -z "$(which brew)" ] &&
    ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

  brew install \
    fd ag wget git bat tmux bash-completion \
    vim macvim jq
else
  install_rust_app https://github.com/sharkdp/fd.git ~/src/fd fd
fi

git config --global user.email "paul@blacksun.org.uk"
git config --global user.name "Paul Walker"

if [ ! -d "$HOME/.asdf" ] ; then
  git clone https://github.com/asdf-vm/asdf.git ~/.asdf
fi

if [ ! -d ~/.tmux/plugins/tpm ] ; then
  git clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm
  if [ "$TMUX" != "" ] ; then
    # If we're currently in tmux, source the new file.
    tmux source-file ~/.tmux.conf
  fi
fi

# Install nvm.
(curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.39.3/install.sh | bash) || exit 1

source ./bashrc.d/nvm.bash

# We can't stop nvm appending to bashrc, but we don't need it - the variables nvm writes to .bashrc are already in
# ~/.bashrc.d/nvm.bash
cp bashrc bashrc-bk
nvm install node && nvm use node && corepack enable
cp bashrc-bk bashrc

# ./install-vim