class GuerrillaMailClient

# File lib/guerrilla_mail_client.rb, line 9
def initialize(site: ENV['GUERRILLA_MAIL_SITE'], api_key: ENV['GUERRILLA_MAIL_API_KEY'])
  @site = site
  @api_key = api_key
  @http = Net::HTTP.new('api.guerrillamail.com', 443)
  @http.use_ssl = true
  @http.verify_mode = OpenSSL::SSL::VERIFY_PEER
end

# File lib/guerrilla_mail_client.rb, line 47
def api_token(sid_token:)
  if @api_key.to_s.empty?
    return nil
  end

  OpenSSL::HMAC.hexdigest(OpenSSL::Digest.new('sha256'), @api_key, sid_token)
end

# File lib/guerrilla_mail_client.rb, line 55
def authorize(req, sid_token:)
  api_token = self.api_token(sid_token: sid_token)
  unless api_token.to_s.empty?
    req['Authorization'] = "ApiToken: #{api_token}"
  end
end

# File lib/guerrilla_mail_client.rb, line 17
def build_url(f, sid_token: nil)
  url = String.new "/ajax.php?f=#{CGI::escape(f)}"

  unless sid_token.to_s.empty?
    url << build_url_param('sid_token', sid_token)
  end

  unless @site.to_s.empty?
    url << build_url_param('site', @site)
  end

  url
end

# File lib/guerrilla_mail_client.rb, line 31
def build_url_param(key, value)
  "&#{CGI::escape(key)}=#{CGI::escape(value.to_s)}"
end

# File lib/guerrilla_mail_client.rb, line 77
def check_email(seq: 0, sid_token:)
  url = build_url('check_email', sid_token: sid_token)

  url << build_url_param('seq', seq)

  req = Net::HTTP::Get.new(url)
  res = @http.request(req)
  authorize(req, sid_token: sid_token)
  JSON.parse(res.body)
end

# File lib/guerrilla_mail_client.rb, line 88
def fetch_email(email_id, sid_token:)
  url = build_url('fetch_email', sid_token: sid_token)

  url << build_url_param('email_id', email_id)

  req = Net::HTTP::Get.new(url)
  res = @http.request(req)
  authorize(req, sid_token: sid_token)
  JSON.parse(res.body)
end

# File lib/guerrilla_mail_client.rb, line 35
def get_email_address(lang: 'en', sid_token: nil)
  url = build_url('get_email_address', sid_token: sid_token)

  unless lang.to_s.empty?
    url << build_url_param('lang', lang)
  end

  req = Net::HTTP::Get.new(url)
  res = @http.request(req)
  JSON.parse(res.body)
end

# File lib/guerrilla_mail_client.rb, line 62
def set_email_user(email_user, lang: 'en', sid_token:)
  url = build_url('set_email_user', sid_token: sid_token)

  url << build_url_param('email_user', email_user)

  unless lang.to_s.empty?
    url << build_url_param('lang', lang)
  end

  req = Net::HTTP::Get.new(url)
  res = @http.request(req)
  authorize(req, sid_token: sid_token)
  JSON.parse(res.body)
end