require "fileutils"

SOURCE = "./_source"
CONFIG = {
  'posts' => File.join(SOURCE, "_posts"),
  'post_ext' => "md"
}

# Usage: rake post title="A Title"
desc "Begin a new post in #{CONFIG['posts']}"
task :post do
  mkdir_p CONFIG['posts']
  title = ENV["title"] || "new-post"
  slug = title.downcase.strip.gsub(/\s+/, '-').gsub(/[^\w-]/, '')
  filename = File.join(CONFIG['posts'], "#{Time.now.strftime('%Y-%m-%d')}-#{slug}.#{CONFIG['post_ext']}")
  if File.exist?(filename)
    abort("rake aborted!") if ask("#{filename} already exists. Do you want to overwrite?", ['y', 'n']) == 'n'
  end

  puts "Creating new post: #{filename}"
  open(filename, 'w') do |post|
    post.puts "---"
    post.puts "layout: post"
    post.puts "title: \"#{title.gsub(/-/,' ')}\""
    post.puts "---"
    post.puts
    post.puts
    post.puts "<!-- more -->"
    post.puts
    post.puts
  end
end # task :post

desc "Launch preview environment"
task :preview do
  system "jekyll --server"
end # task :preview

desc "Clean generated site files"
task :clean do
  FileUtils.rm site_files
end

task :default do
  system "jekyll"
end