# Band registration form for Norsk Urskog Metal Sampler
# Copyright (C) 2015-2018  Harald Eilersen <haraldei@anduin.net>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

require_relative 'band'
require_relative 'pdf_form'
require 'date'
require 'mail'

def send_registration_emails_for(band, pdf_url)
  mail = Mail.new
  mail.charset = 'UTF-8'
  mail.to = settings.contact_email
  mail.from = band.contact.email
  mail.subject = "Registrering av band #{band.name} til Norsk Urskog"
  mail.body = erb :registration_email, :layout => false, :locals => { :pdf_url => pdf_url }

  if settings.environment != :test && settings.respond_to?(:smtp)
    # Since the sinatra/indifferent_hash implementation that holds
    # the settings converts all keys to strings, and the mail gem
    # expects the keys as symbols, we need to create a new hash
    # with the correct keys.
    smtp_settings = Hash[settings.smtp.map { |e| [e[0].to_sym, e[1]] }]

    logger.debug "smtp settings: #{smtp_settings.inspect}"
    mail.delivery_method :smtp, smtp_settings
  end
  mail.deliver!
rescue Net::SMTPError => e
  band.errors << e.message
end

def generate_pdf_for(band, filename)
  pdf = PDFForm.new(band)
  pdf.render(filename)
end

def sanitize(s)
  s.gsub(/[ ,.:!^'*\/\\]+/, '-')
end

def create_pdf_file_name(band)
  filename = "#{Date.today.iso8601}-#{sanitize(band.name)}-#{sanitize(band.city)}.pdf"
end

def parse_date(str)
  Date.parse(str)
rescue TypeError => e
  $stderr << "Invalid date specified: " << str
  raise
end

def accept_registrations(settings)
  start_date = parse_date(settings.accept_registrations[:start])
  end_date = parse_date(settings.accept_registrations[:stop])
  start_date <= Date.today && end_date > Date.today
end