feat: list lectures

Cargo.lock

@@ -152,6 +152,15 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "chrono"
+version = "0.4.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a21f936df1771bf62b77f047b726c4625ff2e8aa607c01ec06e5a05bd8463401"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "color-eyre"
 version = "0.6.3"
@@ -307,6 +316,7 @@ name = "echoed"
 version = "0.1.0"
 dependencies = [
  "async-trait",
+ "chrono",
  "color-eyre",
  "cookie_store",
  "crossterm",
@@ -1017,6 +1027,15 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"
 
+[[package]]
+name = "num-traits"
+version = "0.2.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "num_cpus"
 version = "1.16.0"

echoed/Cargo.toml

@@ -6,6 +6,7 @@ edition = "2021"
 
 [dependencies]
 async-trait = "0.1.83"
+chrono = { version = "0.4.38", default-features = false, features = ["now"] }
 color-eyre = "0.6.3"
 cookie_store = "0.21.1"
 crossterm = "0.28.1"

echoed/src/prelude.rs

@@ -5,5 +5,6 @@ pub use color_eyre::Result;
 pub use crossterm::event::{KeyCode, KeyEvent, KeyEventKind};
 pub use ratatui::prelude::*;
 pub use std::any::Any;
+pub use std::borrow::Cow;
 
 pub type ViewSender = tokio::sync::mpsc::Sender<Command>;

echoed/src/views.rs

@@ -13,14 +13,14 @@ macro_rules! import_view {
     };
 }
 
-import_view!(Auth, Courses);
+import_view!(Auth, Courses, Lectures);
 
 #[async_trait]
-pub trait View {
+pub trait View: Send + Sync {
     async fn setup(&mut self, _state: &State) -> Result<()> {
         Ok(())
     }
-    fn draw(&self, frame: &mut Frame, state: &State);
+    fn draw(&mut self, frame: &mut Frame, state: &State);
     async fn keypress(
         &mut self,
         _key: KeyEvent,
@@ -31,14 +31,20 @@ pub trait View {
     }
 }
 
-pub type ViewContainer = Arc<Mutex<dyn View + Send + Sync>>;
+pub type ViewContainer = Arc<Mutex<dyn View>>;
 
 #[macro_export]
 macro_rules! change_view {
-    ($tx:expr, $view:ident) => {
+    (@ $tx:expr, $value:expr) => {
         $tx.send(Command::ChangeView(std::sync::Arc::new(
-            tokio::sync::Mutex::new(super::$view::default()),
+            tokio::sync::Mutex::new($value),
         )))
         .await?
     };
+    ($tx:expr, $view:ident) => {
+        change_view!(@ $tx, super::$view::default())
+    };
+    ($tx:expr, $view:expr) => {
+        change_view!(@ $tx, $view)
+    };
 }

echoed/src/views/auth.rs

@@ -2,7 +2,6 @@ use crate::{helper::echo, prelude::*};
 use echoed::DEFAULT_ECHO360;
 use email_address::EmailAddress;
 use ratatui::widgets::Paragraph;
-use std::borrow::Cow;
 use tui_textarea::TextArea;
 
 const SHOW_STYLE: Style = Style::new().add_modifier(Modifier::REVERSED);
@@ -24,7 +23,7 @@ impl<'t> View for Auth<'t> {
         Ok(())
     }
 
-    fn draw(&self, frame: &mut Frame, _: &State) {
+    fn draw(&mut self, frame: &mut Frame, _: &State) {
         let area = helper::border(frame, Some("Login"));
         let areas = Layout::vertical([
             Constraint::Length(3),

echoed/src/views/courses.rs

@@ -1,8 +1,7 @@
+use crate::{prelude::*, views::Lectures};
 use color_eyre::eyre::eyre;
 use echoed::DEFAULT_ECHO360;
-
-use crate::prelude::*;
-use std::borrow::Cow;
+use ratatui::widgets::{List, ListState};
 
 #[derive(Debug)]
 pub struct Course {
@@ -14,6 +13,7 @@ pub struct Course {
 #[derive(Default)]
 pub struct Courses {
     courses: Vec<Course>,
+    selected: ListState,
 }
 
 #[async_trait]
@@ -48,23 +48,42 @@ impl View for Courses {
             .ok_or(eyre!("No courses found"))?;
 
         self.courses = enrollments;
+        self.selected.select_first();
 
         Ok(())
     }
 
-    fn draw(&self, frame: &mut Frame, _state: &State) {
-        // let user = state.echo_user.as_ref().unwrap();
-        if let Some(x) = self.courses.first() {
-            frame.render_widget(Line::raw(x.name.to_string()), frame.area());
-        }
+    fn draw(&mut self, frame: &mut Frame, _state: &State) {
+        let items = self
+            .courses
+            .iter()
+            .map(|course| format!("{} ({})", course.name, course.code));
+        let list = List::new(items).highlight_style(Style::new().reversed());
+        frame.render_stateful_widget(list, frame.area(), &mut self.selected);
     }
 
     async fn keypress(
         &mut self,
-        _key: KeyEvent,
+        key: KeyEvent,
         _state: &mut State,
-        _command_tx: &ViewSender,
+        command_tx: &ViewSender,
     ) -> Result<()> {
+        match key.code {
+            KeyCode::Up => self.selected.select_previous(),
+            KeyCode::Down => self.selected.select_next(),
+            KeyCode::Enter => {
+                let i = self.selected.selected_mut().unwrap_or(0);
+                let course = self.courses.get(i).expect("should exist");
+                change_view!(
+                    command_tx,
+                    Lectures::new(
+                        format!("{} ({})", course.name, course.code).into(),
+                        course.section_id.clone()
+                    )
+                )
+            }
+            _ => {}
+        }
         Ok(())
     }
 }

echoed/src/views/lectures.rs

@@ -0,0 +1,103 @@
+use crate::prelude::*;
+use chrono::{DateTime, Utc};
+use color_eyre::eyre::eyre;
+use echoed::DEFAULT_ECHO360;
+use ratatui::widgets::{List, ListState};
+
+pub struct Lecture {
+    name: Cow<'static, str>,
+    date: DateTime<Utc>,
+}
+
+pub struct Lectures {
+    name: Cow<'static, str>,
+    section_id: Cow<'static, str>,
+    lectures: Vec<Lecture>,
+    count: u16,
+    selected: ListState,
+}
+
+impl Lectures {
+    pub fn new(name: Cow<'static, str>, section_id: Cow<'static, str>) -> Self {
+        Self {
+            name,
+            section_id,
+            lectures: vec![],
+            count: 0,
+            selected: ListState::default(),
+        }
+    }
+}
+
+#[async_trait]
+impl View for Lectures {
+    async fn setup(&mut self, state: &State) -> Result<()> {
+        let res = state
+            .client
+            .get(format!(
+                "{}section/{}/syllabus",
+                DEFAULT_ECHO360.clone(),
+                self.section_id
+            ))
+            .send()
+            .await?
+            .json::<ijson::IValue>()
+            .await?;
+
+        let lectures = res["data"]
+            .as_array()
+            .map(|data| {
+                data.iter()
+                    .map(|data| data["lesson"].clone())
+                    .map(|lesson| {
+                        lesson["lesson"]["displayName"]
+                            .as_string()
+                            .and_then(|name| {
+                                lesson["endTimeUTC"].as_string().and_then(|date| {
+                                    DateTime::parse_from_rfc3339(&date.to_string()).ok().map(
+                                        |date| Lecture {
+                                            name: name.to_string().into(),
+                                            date: date.with_timezone(&Utc),
+                                        },
+                                    )
+                                })
+                            })
+                    })
+                    .collect::<Option<Vec<_>>>()
+            })
+            .flatten()
+            .ok_or(eyre!("No lectures found"))?;
+
+        self.count = lectures.len() as u16;
+        let now = Utc::now();
+        self.lectures = lectures
+            .into_iter()
+            .filter(|lecture| lecture.date <= now)
+            .collect();
+        self.selected.select_first();
+
+        Ok(())
+    }
+
+    fn draw(&mut self, frame: &mut Frame, _state: &State) {
+        let items = self.lectures.iter().map(|lecture| lecture.name.to_string());
+        let list = List::new(items).highlight_style(Style::new().reversed());
+        frame.render_stateful_widget(list, frame.area(), &mut self.selected);
+    }
+
+    async fn keypress(
+        &mut self,
+        key: KeyEvent,
+        _state: &mut State,
+        _command_tx: &ViewSender,
+    ) -> Result<()> {
+        match key.code {
+            KeyCode::Up => self.selected.select_previous(),
+            KeyCode::Down => self.selected.select_next(),
+
+            _ => {}
+        }
+
+        Ok(())
+    }
+}

readme.md

@@ -6,3 +6,7 @@
 - browsing
 - downloading lectures
 - support for other echo360 instances
+- make it look good
+- cache courses
+- check for network assets
+- download queue