require 'net/http'
require 'open-uri'
require 'yaml'

module Cytoplasm
	class FontsController < ApplicationController
		
		@@fonts = {
			"fontsquirrel" => false,
			"googlewebfonts" => false,
			"imported" => false
		}
		@@fontsdir = "public/fonts"
		@@gwf_file = @@fontsdir + "/googlewebfonts.yml"
		
		def fetch_imported
			return @@fonts["imported"] unless @@fonts["imported"] == false
			
			imported = {"fontsquirrel" => {}, "googlewebfonts" => {}}
			
			# Create @@fontsdir if it doesn't exist	
			unless File.exists?(@@fontsdir)
				Dir.chdir("public")
				@@fontsdir = Dir.mkdir("fonts")
				Dir.chdir("../")
			end
			
			# Create @@gwf_file if it doesn't exist
			File.open(@@gwf_file,'w') {|f| f.write("")} unless File.exists?(@@gwf_file)
			
			# Fetch imported FontSquirrel fonts
			Dir.open(@@fontsdir).each {|file| imported["fontsquirrel"][file] = fetch_fs_family(file) if File.directory?(file) and file!="." and file!=".."}
			
			# Attempt to load YAML from @@gwf_file
			begin
				c = YAML::load_file(@@gwf_file)
			rescue
				puts "Failed to parse YAML in #{@@gwf_file}!"
			end
			
			# Fetch imported GoogleWebFonts fonts
			c["imported"].each {|f| imported["googlewebfonts"][f] = fetch_gwf_family(f)} unless c["imported"].nil?
			
			@@fonts["imported"] = imported
			return @@fonts["imported"]
		end
		
		def fetch_fs_all
			return @@fonts["fontsquirrel"] unless @@fonts["fontsquirrel"] == false
			fonts = {}
			fetch_json("http://www.fontsquirrel.com/api/fontlist/all").each {|f| fonts[f["family_name"]] = f}
			@@fonts["fontsquirrel"] = fonts
			return @@fonts["fontsquirrel"]
		end
		def fetch_gwf_all
			return @@fonts["googlewebfonts"] unless @@fonts["googlewebfonts"] == false
			gwf = {}
			fetch_json("https://www.googleapis.com/webfonts/v1/webfonts?key="+Cytoplasm.conf("fontloader.googlewebfonts_apikey"))["items"].each {|f| gwf[f["family"]] = f}
			@@fonts["googlewebfonts"] = gwf
			return @@fonts["googlewebfonts"]
		end
		def fetch_fs_family(family)
			fetch_json("http://www.fontsquirrel.com/api/familyinfo/"+family)
		end
		def fetch_gwf_family(family)
			gwf = fetch_gwf_all()
			return (!gwf[family].nil?) ? gwf[family] : false;
		end
		
		def fetch_all
			success = {"fontsquirrel" => {}, "googlewebfonts" => {},"imported" => {"fontsquirrel" => {}, "googlewebfonts" => {}}}
			
			success["fontsquirrel"] = fetch_fs_all()
			success["googlewebfonts"] = fetch_gwf_all()
			success["imported"] = fetch_imported()
			
			render :text => Cytoplasm::Ajax.success(success)
		end
		
		def import
			puts params
			success = {}
			case params[:directory]
				when "fontsquirrel"
					open(@@fontsdir+"/"+params[:family]['family_urlname']+".zip","wb") do |file|
						success["url"] = "http://www.fontsquirrel.com/fontfacekit/"+params[:family]['family_urlname']
						file << open(success["url"]).read
					end
					
					
				when "googlewebfonts"
					
			end
			render :text => Cytoplasm::Ajax.success(success)
		end
		
		def remove
			case params[:directory]
				when "fontsquirrel"
					
				when "googlewebfonts"
					
			end
			render :text => Cytoplasm::Ajax.success()
		end
		
		def index
			@installed = fetch_imported()
		end
		
		private
			def fetch_json(url)
				return ActiveSupport::JSON.decode(open(url).read)
			end
		
	end
end