#!/usr/bin/env ruby

# This script simplifies the usage of `katapult` by grouping relevant actions
# that the user else had to perform manually.
# See bottom for USAGE.

require_relative '../lib/katapult/binary_util'
util = Katapult::BinaryUtil

case (transform_command = ARGV.shift)
when 'new'
  interactive = !ARGV.delete('--non-interactive')
  app_name = ARGV.shift
  basics_command = 'bundle exec rails generate katapult:basics'

  if interactive
    util.puts 'Please enter your database user: '
    basics_command << ' --db-user ' << gets.chomp

    util.puts 'Please enter your database password: '
    basics_command << ' --db-password ' << gets.chomp
  end

  util.puts 'Creating new Rails application ...'
  util.create_rails_app app_name

  Dir.chdir app_name

  util.puts 'Initializing git repository ...'
  util.run 'git init --quiet'
  util.git_commit "rails new #{ app_name }", '--quiet'

  util.puts 'Installing katapult ...'
  File.open('Gemfile', 'a') do |file|
    file.puts "gem 'katapult'#{ ENV['KATAPULT_GEMFILE_OPTIONS'] }, group: :development"
  end
  util.run 'bundle install --quiet'
  util.run 'bundle exec rails generate katapult:install'
  util.git_commit 'rails generate katapult:install', '--quiet'

  util.puts 'Generating katapult basics ...'
  util.run basics_command
  util.git_commit 'rails generate katapult:basics', '--quiet'

  util.puts <<-INSTRUCTIONS
Application initialization done.

Next step: Model your application in lib/katapult/application_model.rb and
transform it into code by running `katapult fire`.
  INSTRUCTIONS

when 'fire'
  app_model_path = ARGV.shift || 'lib/katapult/application_model.rb'
  transform_command = 'bin/rails generate katapult:transform ' + app_model_path

  util.puts 'Loading katapult ...'
  util.run transform_command
  util.git_commit transform_command

  util.puts <<-INSTRUCTIONS
Model transformation done.

Now boot up your development server (e.g. with `rails server`) and try your
kickstarted application in the browser!
  INSTRUCTIONS

else
  puts <<-USAGE
Usage: katapult [new APP_NAME | fire [path/to/model] ]
Suppress database credentials prompt with `--non-interactive`
  USAGE
end