#!/usr/bin/env bash

build_webpack=false
run_install=false

show_help() {
  echo "Start
  The script for starting the web app. This script calls the necessary commands to start the web app containers from their built images.

  Usage: start.sh [OPTIONS]

  Options:
  -b|--build-webpack:   Builds the frontend webpack before starting the web app docker containers.
  -i|--npm-install:     Runs an npm install before building the frontend webpack.
  -h|--help:            Shows this help message.
  "
}


while [[ "$#" -gt 0 ]]; do
  case "$1" in
    -b|--build-webpack)
      build_webpack=true
      shift 1
    ;;
    -i|--npm-install)
      run_install=true
      shift 1
    ;;
    -h|--help)
      show_help
      exit
    ;;
    *)
      echo "Invalid argument given ($1)"
      exit 1
    ;;
  esac
done

cur_dir="$(cd "$( dirname "$0")" && pwd)"
required_files=("$cur_dir/docker/env" "$cur_dir/docker/mongo-init.js")

line_sep="==============================="

for file in "${required_files[@]}"; do
  if [[ ! -f "$file" ]]; then
    echo "A required file is missing (did you run create_env.py and render_docker_templates.sh?). Missing file path: \"$file\""
    exit 1
  fi
done

if "$build_webpack"; then
  build_cmd="$cur_dir/scripts/build_frontend_webpack.sh"

  if "$run_install"; then
    build_cmd="$build_cmd --npm-install"
  fi
  echo "$line_sep"
  echo "Running frontend build script ($build_cmd)"
  echo "$line_sep"
  $build_cmd
else
  echo ""
  echo "$line_sep"
  echo "Not building webpack"
  echo "$line_sep
  "
fi

# if there is no built webpack, don't start the containers
if [[ ! -d "$cur_dir/quarterformsdist" ]]; then
  echo "The webpack does not appear to be built (run with --build-webpack to build it)."
  exit 1
elif [[ ! -f "$cur_dir/quarterformsdist/index.html" ]]; then
  echo "There is no index.html in the webpack build directory!"
  exit 1
fi

sudo docker-compose -f "$cur_dir/docker/docker-compose.yaml" up -d