feat: color category-saved channel names

src/main.rs

@@ -111,7 +111,7 @@ use ratatui::{
     layout::{Constraint, Layout, Rect},
     style::{Color, Style, Stylize},
     text::{Line, Span, Text},
-    widgets::{Block, Clear, List, ListState, Paragraph, Row, Table, TableState, Wrap},
+    widgets::{Block, Cell, Clear, List, ListState, Paragraph, Row, Table, TableState, Wrap},
 };
 use youtube::{Job, PAGE_SIZE, Page, PlayerLaunch, Video};
 
@@ -1677,10 +1677,24 @@ impl App {
         let view = &mut self.views[self.view_index];
         let table = Table::new(
             view.videos.iter().map(|video| {
+                let tagged = self.config.categories.values().flatten().any(|identity| {
+                    video.channel_id.as_deref().is_some_and(|id| {
+                        identity.strip_prefix("https://www.youtube.com/channel/") == Some(id)
+                    }) || video.uploader_id.as_deref().is_some_and(|handle| {
+                        identity.strip_prefix("https://www.youtube.com/") == Some(handle)
+                            || (video.channel_id.is_none()
+                                && self.config.channels.get(handle) == Some(identity))
+                    })
+                });
+                let channel = Cell::from(video.channel.as_deref().unwrap_or("Unknown"));
                 Row::new([
-                    video.title.as_str(),
-                    video.channel.as_deref().unwrap_or("Unknown"),
-                    video.publication_date.as_deref().unwrap_or("Unknown"),
+                    Cell::from(video.title.as_str()),
+                    if tagged {
+                        channel.fg(Color::Cyan)
+                    } else {
+                        channel
+                    },
+                    Cell::from(video.publication_date.as_deref().unwrap_or("Unknown")),
                 ])
             }),
             [
@@ -2210,6 +2224,94 @@ mod tests {
         app.key(KeyEvent::new(KeyCode::Enter, KeyModifiers::NONE));
     }
 
+    #[test]
+    fn video_channel_colors_follow_category_membership_and_preserve_selection_contrast() {
+        use ratatui::{Terminal, backend::TestBackend};
+
+        let mut app = app(&["tubular"]);
+        let tagged_id = "UC4QobU6STFB0P71PMvOGN5A";
+        let registered_id = "UCaYhcUwRBNscFNUKTjgPFiA";
+        app.config.channels.insert(
+            "@mapped".into(),
+            config::normalize_channel(tagged_id).unwrap(),
+        );
+        app.config.channels.insert(
+            "@registered".into(),
+            config::normalize_channel(registered_id).unwrap(),
+        );
+        app.config.categories.insert(
+            "Favorites".into(),
+            vec![
+                config::normalize_channel(tagged_id).unwrap(),
+                config::normalize_channel("@direct").unwrap(),
+            ],
+        );
+        let cases = [
+            ("TaggedID", Some(tagged_id), None, true),
+            ("TaggedHandle", None, Some("@direct"), true),
+            ("MappedHandle", None, Some("@mapped"), true),
+            (
+                "Registered",
+                Some(registered_id),
+                Some("@registered"),
+                false,
+            ),
+            ("TaggedID", Some(registered_id), None, false),
+            ("Unknown", None, None, false),
+        ];
+        app.views[0].videos = youtube::search_results(
+            &serde_json::json!({
+                "entries": cases.iter().map(|(channel, id, handle, _)| serde_json::json!({
+                    "id": "jNQXAC9IVRw", "title": "Video title", "channel": channel,
+                    "channel_id": id, "uploader_id": handle, "upload_date": "20261011"
+                })).collect::<Vec<_>>()
+            })
+            .to_string(),
+        )
+        .unwrap()
+        .videos;
+        app.views[0].selection.select(None);
+        let mut terminal = Terminal::new(TestBackend::new(120, 24)).unwrap();
+        for cleared in [false, true] {
+            if cleared {
+                app.config.categories.clear();
+            }
+            terminal
+                .draw(|frame| app.draw(frame, Duration::ZERO))
+                .unwrap();
+            let buffer = terminal.backend().buffer();
+            // One tab row, three search rows, then the table border and header.
+            for (index, (label, _, _, tagged)) in cases.iter().enumerate() {
+                let y = 6 + index as u16;
+                let row: String = (0..120).map(|x| buffer[(x, y)].symbol()).collect();
+                let x = row.find(label).expect("channel label is visible") as u16;
+                assert_eq!(
+                    buffer[(x, y)].fg,
+                    if *tagged && !cleared {
+                        Color::Cyan
+                    } else {
+                        Color::Reset
+                    },
+                    "{label} in row {index}, cleared={cleared}"
+                );
+                assert_eq!(buffer[(3, y)].fg, Color::Reset, "title stays uncolored");
+                assert_eq!(buffer[(108, y)].fg, Color::Reset, "date stays uncolored");
+            }
+            if !cleared {
+                app.views[0].selection.select(Some(0));
+                terminal
+                    .draw(|frame| app.draw(frame, Duration::ZERO))
+                    .unwrap();
+                let buffer = terminal.backend().buffer();
+                let row: String = (0..120).map(|x| buffer[(x, 6)].symbol()).collect();
+                let x = row.find("TaggedID").unwrap() as u16;
+                assert_eq!(buffer[(x, 6)].fg, Color::Black);
+                assert_eq!(buffer[(x, 6)].bg, Color::Cyan);
+                app.views[0].selection.select(None);
+            }
+        }
+    }
+
     #[test]
     fn remapped_preview_and_input_actions_survive_key_only_config_reload() {
         use ratatui::{Terminal, backend::TestBackend};