#!/usr/bin/env ruby

require 'caramelize'
require 'commander/import'

# :name is optional, otherwise uses the basename of this executable
program :name, 'caramelize'
program :version, Caramelize::VERSION
program :description, 'With Caramelize you can migrate any wiki to git-based Gollum wiki repositories.'
program :help, 'Author', 'Daniel Senff <public@danielsenff.de>'

default_command :run

global_option '--verbose'

command :new do |c|
  c.syntax = 'caramelize create [options]'
  c.summary = 'Create new configuration'
  c.description = 'Create a fresh configuration file for caramelize'
  c.option '--config STRING', String, 'The config file (default: caramel.rb)'
  c.example 'Create a fresh config file as "caramel.rb"', 'caramelize create'
  c.example 'Create a fresh config file as "config.rb"', 'caramelize create --config config.rb'
  c.action do |args, options|
    target_file ||= (options.config || 'caramel.rb')
    options.default({ config: 'caramel.rb' })
    FileUtils.cp(File.dirname(__FILE__) + '/../lib/caramelize/caramel.rb',
                 options.config)
    say "Created new configuration file: #{options.config}"
  end
end
alias_command :create, :new

command :run do |c|
  c.syntax = 'caramelize run [options]'
  c.summary = 'Run wiki transfer'
  c.description = 'Run the wiki content transfer based on the given configuration file'
  c.option '--config STRING', String, 'The config file (default: caramel.rb)'
  c.example 'Run transfer for "caramel.rb"', 'caramelize run'
  c.example 'Run transfer for "config.rb"', 'caramelize run --config config.rb'
  c.action do |args, options|
    time_start = Time.now
    options.default({ config: 'caramel.rb', target: 'wiki-export' })

    instance_eval(File.read(options.config))

    target = options.target

    if File.exists?(target)
      answer = agree("#{target} already exists. Overwrite with fresh repository?")
      FileUtils.rm_rf(target) if answer
    end

    wiki_options = input_wiki.options.merge(verbose: options.verbose,
                                            target: options.target)
    Caramelize::ContentTransferer.new(input_wiki, wiki_options).execute
    say "Time required: #{Time.now - time_start} s"
  end
end

command :doctor do |c|
  c.syntax = 'caramelize doctor [options]'
  c.summary = 'Run wiki transfer'
  c.description = 'Run health-check'
  c.option '--target STRING', String, 'The target path to Gollum git repository (default: wiki-export)'
  c.example 'Run transfer for "caramel.rb"', 'caramelize doctor'
  c.action do |args, options|
    options.default(target: 'wiki-export')

    if File.exists?(options.target)
      Caramelize::HealthCheck.new(options.target).execute
    else
      say("No wiki repositry found in directory #{options.target}")
    end
  end
end