#!/usr/bin/env ruby

$:.unshift File.expand_path('../../lib', __FILE__)

require 'ginatra'
require 'optparse'

options = {
  port: Ginatra.config.port,
  host: Ginatra.config.host
}

global_opts = OptionParser.new do |opts|
  opts.banner = "Usage: ginatra <options> <command>"

  opts.separator ""
  opts.separator "Options:"

  opts.on('-v', '--version', 'Print version and exit') do
    require_relative '../lib/ginatra/version'
    puts "Ginatra #{Ginatra::VERSION} #{Ginatra::RELEASE_NAME}"
    exit
  end

  opts.on_tail('-h', '--help', 'Show this help message') do
    puts opts
    exit
  end
end

server_opts = {
  'run' => OptionParser.new do |opts|
    opts.banner = "Usage: ginatra run <options>"

    opts.separator ""
    opts.separator "Options:"

    opts.on('-p', '--port PORT', 'Port to bind to (defaults from config file)') do |port|
      options[:port] = port.to_i
    end

    opts.on('-h', '--host HOST', 'Host address to bind to (defaults from config file)') do |host|
      options[:host] = host
    end

    opts.on 'Start Ginatra web server' do
      environment = ENV['RACK_ENV'] || 'production'
      rack_config = File.expand_path("#{__FILE__}/../../config.ru")
      pid_file    = File.expand_path("#{__FILE__}/../../ginatra.pid")

      system "rackup -D -E #{environment} -P #{pid_file} -p #{options[:port]} -o #{options[:host]} #{rack_config}"
      puts "Ginatra runs on #{options[:host]}:#{options[:port]}"
    end
  end,

  'stop' => OptionParser.new do |opts|
    opts.banner = "Usage: ginatra stop"

    opts.on 'Stop Ginatra web server' do
      pid_file = File.expand_path("#{__FILE__}/../../ginatra.pid")

      if File.exist?(pid_file)
        pid = File.read(pid_file)
        Process.kill('INT', pid.to_i)
        File.delete(pid_file)
        puts "Stopped Ginatra web server"
      end
    end
  end,

  'status' => OptionParser.new do |opts|
    opts.banner = "Usage: ginatra status"

    opts.on 'Get status of Ginatra web server' do
      pid_file = File.expand_path("#{__FILE__}/../../ginatra.pid")
      status = File.exist?(pid_file) ? "running.. (pid: #{File.read(pid_file).to_i})" : 'NOT running'
      puts "Ginatra is #{status}"
    end
  end
}

if ARGV.size.zero?
  puts global_opts

  %w(run stop status).each do |cmd|
    puts
    puts server_opts[cmd]
  end

  exit 1
end

global_opts.order!
server_opts[ARGV.shift].order!