area_codes_update:nanp rake task added

1 files changed, 52 insertions, 0 deletions

diff --git a/lib/tasks/update_area_codes.rake b/lib/tasks/update_area_codes.rake
new file mode 100644
index 0000000..0d6eadd
--- /dev/null
+++ b/lib/tasks/update_area_codes.rake
@@ -0,0 +1,52 @@
+namespace :area_codes_update do
+  desc "Update Area Codes and Central Office Codes."
+  task :nanp => :environment do
+    ARCHIVE_URL = 'http://www.nanpa.com/nanp1/allutlzd.zip'
+    ARCHIVE_PATH = '/tmp/nanp_area_codes.zip'
+    SOURCE_FILE = '/tmp/allutlzd.txt'
+
+    country = Country.where(:name => "United States of America" ).first
+
+    require 'open-uri'
+    open(ARCHIVE_PATH, 'wb') do |file|
+      puts 'Downloading area codes list...'
+      file << open(ARCHIVE_URL).read
+    end
+
+    system("cd /tmp/ && unzip #{ARCHIVE_PATH}")
+    all_lines_count = 0
+    File.open(SOURCE_FILE, 'r') {|file| all_lines_count = file.read.count("\n")}
+
+    lines = 0
+    File.open(SOURCE_FILE, 'r').each_line do |line|
+      lines += 1
+
+      if lines == 1
+        next
+      end
+
+      line_array = line.split("\t")
+
+      state = line_array[0].strip
+      npa, ncc = line_array[1].split("-")
+      rate_center = line_array[4].strip.titleize
+
+      if rate_center.blank? || line_array[6].strip != 'AS' || rate_center == 'Xxxxxxxxxx'
+        next
+      end
+
+      name = "#{rate_center}, #{state}"
+      percent = lines.to_f / all_lines_count.to_f * 100.0
+      puts  "#{all_lines_count} / #{lines} / #{percent.to_i}% / Processing #{name} / +1-#{npa}-#{ncc} "
+
+      area_code = AreaCode.where(:country_id => country.id, :area_code => npa, :central_office_code => ncc).first
+      if !area_code
+        area_code = AreaCode.create(:country_id => country.id, :area_code => npa, :central_office_code => ncc, :name => name)
+      else
+        if area_code.name != name
+          area_code.update_attributes({ :name => name })
+        end
+      end
+    end
+  end
+end
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