Parse dates from CardDAV

We’re now correctly building an array of names and birthdates from
CardDAV data

lib/birthdaze.rb

@@ -6,22 +6,41 @@ class Birthdaze < Thor
   desc "generate", "Generate calendars"
   def generate
     puts "Generate calendars"
-    auth(config["url"], config["username"], config["password"])
+    birthdays
   end
 
   private
 
-  def config
-    config_file = "#{ENV["HOME"]}/.config/birthdaze.yaml"
+  def config(config_file = "#{ENV["HOME"]}/.config/birthdaze.yaml")
     unless File.file?(config_file)
       puts "Please add a configuration file"
       return
     end
+
     @config ||= YAML.load_file(config_file)
   end
 
-  def auth(url, username, password)
-    config
-    client = Carddav::Client.new(url, username, password)
+  def client(url: config["url"], username: config["username"], password: config["password"])
+    @client ||= Carddav::Client.new(url, username, password)
+  end
+
+  def birthdays
+    birthdays = []
+    client.cards.each do |card|
+      card = card.parsed.to_s
+      birthday = birthday_regex.match(card)[1] if birthday_regex.match?(card)
+      name = name_regex.match(card)[1] if name_regex.match?(card)
+      birthdays << [ name, birthday ] if name && birthday
+    end
+    birthdays
+  end
+
+  def birthday_regex
+    # We need the dash for dates which don’t specify a year
+    /.*BDAY.*:([\d-]*).*/
+  end
+
+  def name_regex
+    /FN.*:(.*)/
   end
 end