#!/usr/bin/env ruby

require 'bundler/setup'
require 'nutkins'
require 'nutkins/version'
require 'moister'
require 'ostruct'

module Nutkins::Command
  def self.run args
    global_config = nil
    command = nil

    Moister::SubcommandOptionParser.new do |op|
      op.banner = "usage: nutkins #{Nutkins::VERSION} [global options] command [command options]"
      op.version = Nutkins::VERSION

      op.for_all do |op|
        op.on_tail '-h', '--help', 'show this help message' do
          puts op
          exit
        end
      end

      op.on '-p', '--project dir', 'override path to project', 'project_dir'

      op.subcommand 'build,b *paths', 'build docker image[s] from nutkin.yamls/dockerfiles'

      op.subcommand 'create,c *paths', 'create container from image' do |subop|
        subop.on '-r', '--reuse', 'reuse previously built image', 'reuse'
        subop.on '-p', '--preserve', 'preserve existing container', 'preserve'
      end

      op.subcommand 'delete,d *paths', 'delete container corresponding to image'
      op.subcommand 'delete-all', 'delete containers corresponding to all images'

      op.subcommand 'run,r path', 'run created container' do |subop|
        subop.on '-r', '--reuse', 'reuse previously created container', 'reuse'
        subop.on '-s', '--shell', 'add bash shell to console', 'shell'
      end

      op.subcommand 'exec,e path *cmd', 'execute a command in a running container'
      op.subcommand 'build-secret,B path', 'build secret files/volumes'
      op.subcommand 'extract-secrets,X [*paths]', 'extract secret files/volumes'

      op.subcommand 'start-etcd', 'start container running etcd'
      op.subcommand 'stop-etcd', 'stop container running etcd'

      parsed_cfg = op.parse(args).to_h

      global_config = OpenStruct.new parsed_cfg[:config]
      command = parsed_cfg[:command]
    end

    unless command
      puts 'please supply a command, see --help'
      exit 1
    end

    nutkins = Nutkins::CloudManager.new(project_dir: global_config.project_dir)
    config = OpenStruct.new global_config[command]

    case command
    when 'build'
      config.paths.each &nutkins.method(:build)
    when 'create'
      config.paths.each do |path|
        nutkins.create path, preserve: config.preserve, reuse: config.reuse
      end
    when 'delete'
      config.paths.each &nutkins.method(:delete)
    when 'delete-all'
      nutkins.delete_all
    when 'run'
      nutkins.run config.path, reuse: config.reuse, shell: config.shell
    when 'exec'
      nutkins.exec config.path, config.cmd
    when 'build-secret'
      nutkins.build_secret config.path
    when 'extract-secrets'
      nutkins.extract_secrets config.paths
    when 'start-etcd'
      nutkins.start_etcd_container
    when 'stop-etcd'
      nutkins.stop_etcd_container
    end
  rescue RuntimeError => e
    puts e.to_s
  end
end

Nutkins::Command::run ARGV