#!/bin/bash

REPO=${1:-https://gogs.viktorgrahn.com/viktor/dotfiles.git}
BRANCH=${2:-main}

if [ -d $HOME/.dotfiles ]; then
  echo "$HOME/.dotfiles already exists"
  exit 1
fi

echo "Cloning ${REPO} to $HOME/.dotfiles"
git clone --bare ${REPO} $HOME/.dotfiles > /tmp/setupDotfiles.log
if (( $? > 0 )); then
  echo "Unable to clone ${REPO}"
  exit 2
fi

echo "Checkout ${BRANCH} to $HOME"
git --git-dir=${HOME}/.dotfiles --work-tree=${HOME} checkout ${BRANCH} > /tmp/setupDotfiles.log
if (( $? > 0 )); then
  if grep "overwritten by checkout" /tmp/setupDotfiles.log >> /dev/null 2>&1; then
    echo "Resolving conflicts and moving existing files to ${HOME}/.dotfiles_backup"
    for FILE in $(grep -E "^\s+\." /tmp/setupDotfiles.log | awk '{print $1}'); do
      echo "Moving ${FILE} to ${HOME}/.dotfiles_backup/${FILE}"
      mkdir -p ${HOME}/.dotfiles_backup/$(dirname ${FILE})
      mv ${FILE} ${HOME}/.dotfiles_backup/${FILE}
  else
    echo "Non conflict error at checkout"
    exit 3
  fi
fi

echo "Adding alias dotfiles"
alias "dotfiles" "git --git-dir=${HOME}/.dotfiles --work-tree=${HOME}"