play status with corresponding commands

src/main.rs

@@ -2,9 +2,12 @@ mod rss;
 mod input;
 mod download;
 
+use input::{Command, ListenStatus};
+
 use std::fs;
 
 use anyhow::Context;
+use sanitise_file_name::sanitise;
 
 fn main() -> anyhow::Result<()> {
 
@@ -25,23 +28,59 @@ fn main() -> anyhow::Result<()> {
         anyhow::bail!("could not get parent of configuration path for root directory")
     };
 
-    // Updating single podcast
-    if let Some(alias) = args.podcast {
-        if let Some(feed_url) = config.podcasts.get(&alias) {
-            download::update_podcast(&alias, root, feed_url)?;
-        }
-        else {
-            anyhow::bail!(r#"podcast "{}" not found in configuration file"#, alias)
-        }
-    }
-    // Updating all podcasts
-    else {
-        for (alias, feed_url) in config.podcasts {
-            download::update_podcast(&alias, root, &feed_url)?;
-        }
-    }
+
+    match args.command {
+        Command::Download { podcast } => {
+            // Updating single podcast
+            if let Some(alias) = podcast {
+                if let Some(feed_url) = config.podcasts.get(&alias) {
+                    download::update_podcast(&alias, root, feed_url)?;
+                }
+                else {
+                    anyhow::bail!(r#"podcast "{}" not found in configuration file"#, alias)
+                }
+            }
+            // Updating all podcasts
+            else {
+                for (alias, feed_url) in config.podcasts {
+                    download::update_podcast(&alias, root, &feed_url)?;
+                }
+            }
+        },
+        Command::List { status, podcast } => {
+            let output = root.join(sanitise(&podcast));
+            let spec_file = output.join("spec.toml");
+
+            let spec = download::Specification::read_from(&spec_file)?;
+
+            for (_, episodes) in spec.feed_iter() {
+                for episode in episodes {
+                    if status.is_none()
+                    || (episode.listened && status.is_some_and(|x| x == ListenStatus::Listened))
+                    || (!episode.listened && status.is_some_and(|x| x == ListenStatus::Unlistened)) {
+                        println!("{}", episode.title())
+                    }
+                }
+            }
+        },
+        Command::Mark { status, podcast } => {
+            let output = root.join(sanitise(&podcast));
+            let spec_file = output.join("spec.toml");
+
+            let mut spec = download::Specification::read_from(&spec_file)?;
+
+            for (_, episodes) in spec.feed_iter_mut() {
+                for episode in episodes {
+                    episode.listened = status == ListenStatus::Listened;
+                }
+            }
+
+            spec.write_to(&spec_file)?;
+        },
+    };
 
     Ok(())
 }
 
 
+