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Diffstat (limited to 'pl/episode_data.pl')
| -rw-r--r-- | pl/episode_data.pl | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/pl/episode_data.pl b/pl/episode_data.pl new file mode 100644 index 0000000..49dddd0 --- /dev/null +++ b/pl/episode_data.pl @@ -0,0 +1,68 @@ +:- module(episode_data, [retract_episode/1, + lookup_episode/3, + lookup_episode_local/3, + lookup_episode_remote/3]). + +:- use_module(library(dcg/basics)). +:- use_module(library(http/http_open)). +:- use_module(library(sgml)). +:- use_module(library(xpath)). +:- use_module(library(persistency)). +:- use_module(atom_dcg). + +:- persistent episode_name_data(episode:integer, name:atom, data:list). + +attach :- + absolute_file_name('episode_data.db', F, [access(write)]), + db_attach(F, []). + +detach :- + db_detach. + +retract_episode(Ep) :- + ( episode_name_data(Ep, _, _) + -> retractall_episode_name_data(Ep, _, _) + ; true + ). + +padding(Ep) --> { Ep < 10 }, "00". +padding(Ep) --> { Ep >= 10, Ep < 100 }, "0". +padding(Ep) --> { Ep >= 100 }. + +episode_number(Ep) --> padding(Ep), integer(Ep). + +lookup_episode(Ep, Name, Data) :- lookup_episode_local(Ep, Name, Data), !. +lookup_episode(Ep, Name, Data) :- lookup_episode_remote(Ep, Name, Data). + +lookup_episode_local(Ep, Name, Data) :- + episode_name_data(Ep, Name, Data). + +lookup_episode_remote(Ep, Name, Data) :- + catch(http_load_html( + 'https://www.detectiveconanworld.com/wiki/Next_Conan%27s_Hint', + D), + _, + fail), + xpath(D, //tr, D1), + xpath(D1, td(index(1),text), T), + atom_phrase(episode_number(Ep), T), + xpath(D1, td(index(2),text), Name), + xpath(D1, td(index(3),text), Hint), + Data = [hint(Hint)], + assert_episode_name_data(Ep, Name, Data). + +http_load_html(URL, DOM) :- + setup_call_cleanup(http_open(URL, In, + [ timeout(60) + ]), + ( dtd(html, DTD), + load_structure(stream(In), + DOM, + [ dtd(DTD), + dialect(sgml), + shorttag(false), + max_errors(-1), + syntax_errors(quiet) + ]) + ), + close(In)). |