provide feed find/get functions as parameters from main

src/feed/find.rs

@@ -1,6 +1,6 @@
 use crate::prelude::*;
 
-pub fn get_feed_url(site: &str, channel_name: &str) -> Result<String> {
+pub fn find(site: &str, channel_name: &str) -> Result<String> {
     if let Some(channel_prefix) = channel_name.chars().next() {
         if channel_prefix != '@' {
             return Err(format!("Channel Name must begin with an '@': {}", channel_name).into());

src/feed/get.rs

@@ -2,7 +2,7 @@ use atom_syndication::Feed;
 
 use crate::prelude::*;
 
-pub fn get_feed(url: String) -> Result<Feed> {
+pub fn get(url: &str) -> Result<Feed> {
     let content = reqwest::blocking::get(url)?.bytes()?;
     let channel = Feed::read_from(&content[..])?;
     Ok(channel)

src/feed/mod.rs

@@ -1,5 +1,12 @@
+use crate::prelude::*;
+
 mod find;
 mod get;
 
-pub use find::get_feed_url;
-pub use get::get_feed;
+pub use find::find;
+pub use get::get;
+
+type Feed = atom_syndication::Feed;
+
+pub type FeedFind = fn(&str, &str) -> Result<String>;
+pub type FeedGet = fn(&str) -> Result<Feed>;

src/lib.rs

@@ -1,5 +1,5 @@
 mod errors;
-mod feed;
+pub mod feed;
 mod fetch;
 mod history;
 pub mod prelude;
@@ -7,12 +7,18 @@ mod subscriptions;
 
 use prelude::*;
 
-pub fn run(subscriptions: &str, history: &str, site: &str) -> Result<()> {
+pub fn run(
+    subscriptions: &str,
+    history: &str,
+    site: &str,
+    feed_find: feed::FeedFind,
+    feed_get: feed::FeedGet,
+) -> Result<()> {
     for channel_name in subscriptions::lines_from(subscriptions)? {
         let channel_name = channel_name?;
         println!("Channel: {}", channel_name);
-        let feed_url = feed::get_feed_url(site, &channel_name)?;
-        for entry in feed::get_feed(feed_url)?.entries() {
+        let feed_url = feed_find(site, &channel_name)?;
+        for entry in feed_get(&feed_url)?.entries() {
             if let Some(link) = entry.links().get(0).cloned() {
                 if !history::is_already_downloaded(&link, history)? {
                     println!("Downloading {}: {}", &channel_name, entry.title().as_str());

src/main.rs

@@ -6,7 +6,13 @@ fn main() -> Result<()> {
     let history = "downloaded.txt";
     let site = "https://www.youtube.com/";
 
-    podal::run(subscriptions, history, site)?;
+    podal::run(
+        subscriptions,
+        history,
+        site,
+        podal::feed::find,
+        podal::feed::get,
+    )?;
 
     println!("Done");
     Ok(())