function exists() {
  command -v "$1" >/dev/null 2>&1
}

function install_brew () {
  if exists brew
  then
    echo "Brew already installed..."
  else
    echo "Installing Brew..."
    /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
    (echo; echo 'eval "$(/opt/homebrew/bin/brew shellenv)"') >> /Users/michaelmarquez/.zprofile
    eval "$(/opt/homebrew/bin/brew shellenv)"
  fi
}

function install_visual_studio_code () {
  if exists code
  then
    echo "Visual Studio Code already installed..."
  else
    echo "Installing Visual Studio Code..."
    brew install --cask visual-studio-code
  fi
}

function install_iterm2 () {
  if [ $(mdfind "kMDItemCFBundleIdentifier == com.googlecode.iterm2" /Applications/iTerm.app) ]
  then
    echo "Iterm2 already installed..."
  else
    echo "Installing Iterm2..."
    brew install --cask iterm2
  fi
}

function install_powerline_fonts () {
    git clone https://github.com/powerline/fonts.git --depth=1
    cd fonts
    ./install.sh
    cd ..
    rm -rf fonts
}

# TODO: Use AWK to overwrite the ZSH_THEME
function install_ohmyzsh () {
  if [ -d $HOME/.oh-my-zsh ]
  then
    echo "Ohmyzsh  already installed..."
  else
    echo "Installing Ohmyzsh..."
    sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
    echo >> ~/.zshrc
    echo "# Remove Host Text from Terminal" >> ~/.zshrc
    echo "prompt_context() {}"  >> ~/.zshrc
    sed 's/^ZSH_THEME="robbyrusell"/ZSH_THEME="agnoster"/' ~/.zshrc
    install_powerline_fonts
  fi
}

function install_hackfont () {
  if [[ $(ls ~/Library/Fonts/ | grep -i "hack") ]]
    then
      echo "Hack Font Already Installed..."
    else
      echo "Installing Hack Font..."
      brew tap homebrew/cask-fonts
      brew install --cask font-hack-nerd-font
  fi
}

function install_docker () {
  if exists docker
  then
    echo "Docker already installed..."
  else
    echo "Installing Docker..."
    brew install --cask docker
  fi
}

function install_1password() {
  if [[ $(find /Applications -name "1Password.app" | grep .) ]]
  then
    echo "1Password already installed..."
  else
    echo "Installing 1Password..."
    brew install --cask 1password
  fi
}

function install_brave() {
  if [[ $(find /Applications -name "Brave Browser.app" | grep .) ]]
  then
    echo "Brave already installed..."
  else
    echo "Installing Brave..."
    brew install --cask brave-browser
  fi
}

function install_1password_cli() {
  if exists op
  then
    echo "1password CLI already installed..."
  else
    echo "Installing 1Password CLI..."
    brew install --cask 1password/tap/1password-cli
  fi
}

function install_fantastical() {
  if [[ $(find /Applications -name "Fantastical.app" | grep .) ]]
  then
    echo "Fantastical already installed..."
  else
    echo "Installing Fantastical..."
    brew install --cask fantastical
  fi
}

function install_spotify() {
  if [[ $(find /Applications -name "Spotify.app" | grep .) ]]
  then
    echo "Spotify already installed..."
  else
    echo "Installing Spotify..."
    brew install --cask spotify
  fi
}

#############################
#          MAIN             #
#############################

echo "==========================================================="
echo "                 STARTING APP INSTALLATION"
echo "==========================================================="

install_brew
install_visual_studio_code
install_iterm2
install_ohmyzsh
install_hackfont
install_docker
install_1password
install_brave
install_1password_cli
install_fantastical
install_spotify