#!/usr/bin/env bash

show_help() {
  echo "Build
  A script to build the web app's docker images.

  Usage: build.sh [OPTIONS]

  Options:
  -r|--render-templates:  Run the render_docker_templates script before building the images.
  -h|--help:              Shows this help message.
  "
}

cur_dir="$(cd "$( dirname "$0")" && pwd)"
docker_compose_file="$cur_dir/docker/docker-compose.yaml"
render_template_script="$cur_dir/docker/bin/render_docker_templates.sh"
venv_dir="$cur_dir/venv/bin/activate"
render_templates=false

while [[ "$#" -gt 0 ]]; do
  case "$1" in
    -h|--help)
      show_help
      exit
    ;;
    -r|--render-templates)
      render_templates=true
      shift 1
    ;;
    *)
      echo "Invalid argument given ($1)"
      exit 1
    ;;
  esac
done

source "$venv_dir"

# if we need to render the docker templates, then we should do that
if "$render_templates"; then
  $render_template_script
fi

if [[ ! -f "$docker_compose_file" ]]; then
  echo "The docker-compose file does not exist (expected at $docker_compose_file)."
  echo "Run with --render-templates to render the docker-compose file."
  exit 1
fi

sudo docker-compose -f "$docker_compose_file" build