muse-dl/src/fetch.cr

26 lines
633 B
Crystal

require "crest"
require "./errors/*"
module Muse::Dl
class Fetch
def get_info(url : String) : (Muse::Dl::Book | Muse::Dl::Journal)
match = /https:\/\/muse.jhu.edu\/(book|journal)\/(\d+)/.match url
if match
begin
response = Crest.get url
case match[1]
when "book"
return Muse::Dl::Book.new response
when "journal"
return Muse::Dl::Journal.new response
end
rescue ex : Crest::NotFound
raise Muse::Dl::Errors::InvalidLink
end
else
raise Muse::Dl::Errors::InvalidLink
end
end
end
end