podcasts/src/index_feed.rs
2017-09-22 15:26:21 +03:00

128 lines
3.5 KiB
Rust

use diesel::prelude::*;
use diesel;
use rss;
use schema;
use dbqueries;
use feedparser;
use errors::*;
use models::{NewSource, Source, Podcast, Episode};
pub fn foo() {
let inpt = vec![
"https://request-for-explanation.github.io/podcast/rss.xml",
"https://feeds.feedburner.com/InterceptedWithJeremyScahill",
"http://feeds.propublica.org/propublica/podcast",
"http://feeds.feedburner.com/linuxunplugged",
];
let db = ::establish_connection();
for feed in inpt.iter() {
match insert_source(&db, feed) {
Ok(_) => {}
Err(foo) => {
error!("Error: {}", foo);
continue;
}
}
}
index_loop(db).unwrap();
}
fn insert_source(con: &SqliteConnection, url: &str) -> Result<Source> {
let foo = NewSource::new_with_uri(url);
match dbqueries::load_source(con, foo.uri) {
Ok(mut bar) => {
// TODO: Cmp first before replacing
// FIXME: NewSource has None values for etag, and last_mod atm
// bar.set_http_etag(foo.http_etag);
// bar.set_last_modified(foo.last_modified);
// bar.save_changes::<Source>(con)?;
}
Err(_) => {
diesel::insert(&foo).into(schema::source::table).execute(
con,
)?;
}
}
Ok(dbqueries::load_source(con, foo.uri)?)
}
fn index_podcast(
con: &SqliteConnection,
channel: &rss::Channel,
parent: &Source,
) -> Result<Podcast> {
let pd = feedparser::parse_podcast(channel, parent.id())?;
match dbqueries::load_podcast(con, &pd.title) {
Ok(mut foo) => {
// TODO: Cmp first before replacing
foo.set_link(&pd.link);
foo.set_description(&pd.description);
foo.set_image_uri(pd.image_uri.as_ref().map(|s| s.as_str()));
foo.save_changes::<Podcast>(con)?;
}
Err(_) => {
diesel::insert(&pd).into(schema::podcast::table).execute(
con,
)?;
}
}
Ok(dbqueries::load_podcast(con, &pd.title)?)
}
fn index_episode(con: &SqliteConnection, item: &rss::Item, parent: &Podcast) -> Result<Episode> {
let ep = feedparser::parse_episode(item, parent.id())?;
match dbqueries::load_episode(con, &ep.uri.unwrap()) {
Ok(mut foo) => {
// TODO: Cmp first before replacing
foo.set_title(ep.title);
foo.set_description(ep.description);
foo.set_published_date(ep.published_date);
foo.set_guid(ep.guid);
foo.set_length(ep.length);
foo.set_epoch(ep.epoch);
foo.save_changes::<Episode>(con)?;
}
Err(_) => {
diesel::insert(&ep).into(schema::episode::table).execute(
con,
)?;
}
}
Ok(dbqueries::load_episode(con, &ep.uri.unwrap())?)
}
pub fn index_loop(db: SqliteConnection) -> Result<()> {
// let db = ::establish_connection();
let f = dbqueries::get_sources(&db);
for feed in f.unwrap().iter_mut() {
// info!("{:?}", feed.id());
// This method will defently get split and nuked
// but for now its poc
let chan = feed.get_podcast_chan(&db)?;
let pd = index_podcast(&db, &chan, &feed)?;
let _: Vec<_> = chan.items()
.iter()
.map(|x| index_episode(&db, &x, &pd))
.collect();
info!("{:#?}", pd);
// info!("{:#?}", episodes);
// info!("{:?}", chan);
}
Ok(())
}