#!/usr/bin/env ruby
# vim: syn=ruby

$: << 'lib' # debug only

require "optparse"
require "term/ansicolor"
class String; include Term::ANSIColor end
require "dev_flow"

options = {}

optparse = OptionParser.new do |opts|
  opts.banner = "Usage: dw [options] [command]"
  opts.separator ""
  opts.separator "Commands:"
  opts.separator "  [info]         : show list of tasks"
  opts.separator "  switch         : show list of tasks, and tasks can swith to"
  opts.separator "  switch [branch]: directly switch to a branch"
  opts.separator "  s      [branch]: alias of switch"
  opts.separator "  update-roadmap : on develop branch, update the roadmap file"
  opts.separator "  ur             : alias of update-roadmap"
  opts.separator "  progress <percentage>: change the task progress to percentage (0-99)"
  opts.separator "  p <percentage> : alias of progress"
  opts.separator "  complete       : complete a task, raise progress to 99"
  opts.separator "  close          : close the task as a leader"
  opts.separator "  release        : close a release task"
  opts.separator "  clean[up]      : delete local branches that already completed"
  opts.separator "  gantt          : create gantt chart html files under docs folder"
  opts.separator ""
  opts.separator "Options:"

  options[:roadmap] = 'ROADMAP' # the roadmap file
  opts.on('-r FILE', '--roadmap FILE', 'use an other roadmap file') do |roadmap|
    options[:roadmap] = roadmap
  end

  options[:local_config] = '.dev_flow'
  opts.on('-l FILE', '--local-config FILE', 'use an other local configuration file') do |lc|
    options[:local_config] = lc
  end

  options[:members_file] = 'members.yml' if File.exists? ('members.yml')
  options[:members_file] = 'config/members.yml' if File.exists? ('config/members.yml')
  opts.on('-m FILE', '--members_file FILE', 'use an other members file') do |mf|
    options[:members_file] = mf
    raise "the specified members file #{mf} is not exists." unless File.exists? mf
  end

  opts.on('-o', '--offline', 'do not use remote git server') do 
    options[:offline] = true
  end

  options[:docs] = 'docs'
  opts.on('-d DIR', '--docs DIR', 'document directory for gantt chart') do |dir|
    options[:docs] = dir
  end

  opts.on('-v', '--verbose', 'print more messages') do
    options[:verbose] = true
  end

  opts.on_tail('-h', '--help', 'Display this screen') do
    puts opts
    exit
  end
end

optparse.parse!(ARGV)

# determine the command
command = ARGV[0] || 'info'
cmd_alias = {'pg' => 'progress', 'update-roadmap' => 'ur', 'clean' => 'cleanup', 's' => 'switch'}
command = cmd_alias[command] if cmd_alias[command]

if %w[info init complete progress close release ur update-roadmap cleanup clean switch gantt tm timer].include? command
  options[:command] = command
else
  puts "Unknown command #{command}".red
  exit
end

unless File.exists? (options[:roadmap])
  puts "No roadmap file (#{options[:roadmap]}) found, can not continue.".red
  exit
end

# enter init mode unless .dev_flow file exists
unless command == 'init'
  unless File.exists? (options[:local_config])
    puts "Initializing your environment ... "
    DevFlow.invoke!(options, 'init')
  end
end

# release is just a alias of command close buth with a option flag set
if command == 'release'
  options[:release] = true
  command = 'close'
end

command = 'timer' if command == 'tm'

if command == 'switch'
  options[:switch] = true
  options[:branch] = ARGV[1]
  command = 'info'
end

DevFlow.invoke!(options, command)