.posh_bash

#!/bin/bash

function download_git_completion
{
  TARGET=$1
  if [ ! -r $TARGET ]; then
    GIT_VERSION=`git --version | awk '{print $3}'`
    curl --silent "https://raw.githubusercontent.com/git/git/v$GIT_VERSION/contrib/completion/git-completion.bash" \
      --output $TARGET
  fi
  unset GIT_VERSION TARGET
}

function download_docker_ce_completion
{
  TARGET=$1
  if [ ! -r $TARGET ]; then
    DOCKER_CE_VERSION=`docker --version | awk 'NR==1{print $NF}'`
    curl -L --silent "https://raw.githubusercontent.com/docker/docker-ce/$DOCKER_CE_VERSION/components/cli/contrib/completion/bash/docker" \
      --output $TARGET
  fi
  unset DOCKER_CE_VERSION TARGET
}

function download_docker_compose_completion
{
  TARGET=$1
  if [ ! -r $TARGET ]; then
    DOCKER_COMPOSE_VERSION=`docker-compose --version | awk 'NR==1{print $NF}'`
    curl -L --silent "https://raw.githubusercontent.com/docker/compose/$DOCKER_COMPOSE_VERSION/contrib/completion/bash/docker-compose" \
      --output $TARGET
  fi
  unset DOCKER_COMPOSE_VERSION TARGET
}

function download_docker_machine_completion
{
  TARGET=$1
  if [ ! -r $TARGET ]; then
    DOCKER_MACHINE_VERSION=`docker-machine --version | awk 'NR==1{print $NF}'`
    curl -L --silent "https://raw.githubusercontent.com/docker/machine/$DOCKER_MACHINE_VERSION/contrib/completion/bash/docker-machine.bash" \
      --output $TARGET
  fi
  unset DOCKER_MACHINE_VERSION TARGET
}

# haz bash_completion?
if [ -r /etc/bash_completion ]; then

  # Get git completion if not local
  download_git_completion /etc/bash_completion.d/git
  
  # Get docker-ce completion if not local
  download_docker_ce_completion /etc/bash_completion.d/docker
  
  # Get docker-compose completion if not local
  download_docker_compose_completion /etc/bash_completion.d/docker-compose

  # Get docker-machine completion if not local
  download_docker_machine_completion /etc/bash_completion.d/docker-machine

  # Load bashj_completion
  . /etc/bash_completion
elif command -v brew >/dev/null 2>&1 ; then
  BREW_INSTALL_LOC=$(brew --prefix)
  
  # Get bash_completion with brew if not local
  [ ! -r $BREW_INSTALL_LOC/etc/bash_completion ] && brew install bash-completion

  # Get packer completion if packer is installed but completion is not present
  [ -r $BREW_INSTALL_LOC/bin/packer ] && [ ! -r $BREW_INSTALL_LOC/etc/bash_completion.d/packer ] && brew install packer-completion

  # Get git completion if not local
  download_git_completion $BREW_INSTALL_LOC/etc/bash_completion.d/git
  
  # Get docker-ce completion if not local
  download_docker_ce_completion $BREW_INSTALL_LOC/etc/bash_completion.d/docker
  
  # Get docker-compose completion if not local
  download_docker_compose_completion $BREW_INSTALL_LOC/etc/bash_completion.d/docker-compose
    
  # Get docker-machine completion if not local
  download_docker_machine_completion $BREW_INSTALL_LOC/etc/bash_completion.d/docker-machine
  
  # Load bash-completion
  [ -r $BREW_INSTALL_LOC/etc/bash_completion ] && . $BREW_INSTALL_LOC/etc/bash_completion

  unset BREW_INSTALL_LOC
else
  echo "Can't find brew or /etc/bash_completion"
fi

unset -f download_{git,docker_compose,docker_machine}_completion