🎉 async feed updating (needs UI for it)

src/db.rs

@@ -56,6 +56,8 @@ const ITEMS_TABLE_CREATE: &str = "CREATE TABLE IF NOT EXISTS 'items' (
 );";
 const ITEMS_INDEX_CREATE: &str = "CREATE INDEX IF NOT EXISTS 'items_idx' on 'items'('itemID' ASC);";
 
+const ITEMS_FEED_INDEX_CREATE: &str = "CREATE INDEX IF NOT EXISTS 'item_feed_idx' on 'items'('feedID' ASC);";
+
 const DB_RESET: &str = "
     drop table items;
     drop table feeds;
@@ -82,6 +84,7 @@ pub fn initialize() {
     conn.execute(FEEDS_INDEX_CREATE, []).unwrap();
     conn.execute(ITEMS_TABLE_CREATE, []).unwrap();
     conn.execute(ITEMS_INDEX_CREATE, []).unwrap();
+    conn.execute(ITEMS_FEED_INDEX_CREATE,[]).unwrap();
     conn.close().unwrap();
     println!("Database Initialized.")
 }

src/main.rs

@@ -1,9 +1,9 @@
-mod net;
-mod ui;
-mod html;
-mod db;
-mod files;
-mod widgets;
+pub mod net;
+pub mod ui;
+pub mod html;
+pub mod db;
+pub mod files;
+pub mod widgets;
 
 pub fn main() -> iced::Result {
     db::initialize();

src/ui.rs

@@ -1,10 +1,9 @@
-use crate::db::add_feed;
-
 use super::db;
 use super::widgets;
 use iced::widget::row;
 use iced::widget::scrollable;
 use iced::widget::text_input;
+use iced::Task;
 use iced::{
     widget::{button, column, container, text},
     Element,
@@ -15,12 +14,12 @@ pub fn user_interface() -> iced::Result {
 }
 
 #[derive(Clone, Debug)]
-enum Page {
-    home,
-    feed_view,
-    all_items,
-    item_view,
-    testing,
+pub enum Page {
+    Home,
+    FeedView,
+    AllItems,
+    ItemView,
+    Testing,
 }
 
 struct State {
@@ -31,7 +30,7 @@ struct State {
 impl Default for State {
     fn default() -> Self {
         State { 
-            page: Page::home,
+            page: Page::Home,
             current_feed: 0,
             feed_input: String::from("")
          }
@@ -44,34 +43,51 @@ pub enum Message {
     LoadFeed(usize),
     AddFeed(String),
     FieldUpdated(AppField,String),
+    Done(String),
     ResetDB
 }
 
 #[derive(Debug,Clone)]
-enum AppField {
+pub enum AppField {
     FeedInput
 }
 
-fn update(state: &mut State, mes: Message) {
+async fn add_feed_background(url: String) -> String {
+    println!("Adding feed!");
+    db::add_feed(&url);
+    "Done adding feed".to_string()
+}
+
+fn update(state: &mut State, mes: Message) -> Task<Message>{
     match mes {
-        Message::ChangePage(p) => state.page=p,
+        Message::ChangePage(p) => {
+            state.page=p;
+            Task::none()
+        },
         Message::LoadFeed(feed_id) => {
             state.current_feed = feed_id;
-            state.page=Page::feed_view;
-
+            state.page=Page::FeedView;
+            Task::none()
         },
         Message::AddFeed(f) => {
-            db::add_feed(&f);
+            state.feed_input = "".to_string();
+            Task::perform(
+                add_feed_background(f),
+                Message::Done
+            )
         },
+        Message::Done(_) => {Task::none()},
         Message::FieldUpdated(field, value) => {
             match field {
                 AppField::FeedInput => {
                     state.feed_input=value;
                 }
             }
+            Task::none()
         },
         Message::ResetDB => {
             db::reset();
+            Task::none()
         }
 
     }
@@ -82,18 +98,18 @@ fn update(state: &mut State, mes: Message) {
 
 fn view(state: &State) -> Element<'_, Message> {
     match state.page {
-        Page::home => home(&state),
-        Page::feed_view => feed_layout(&state),
-        Page::all_items => item_list(&state),
-        Page::item_view => item_view(&state),
-        Page::testing => testing(&state),
+        Page::Home => home(&state),
+        Page::FeedView => feed_layout(&state),
+        Page::AllItems => item_list(&state),
+        Page::ItemView => item_view(&state),
+        Page::Testing => testing(&state),
     }
 }
 
-fn home(state: &State) -> Element<'_, Message> {
+fn home(_state: &State) -> Element<'_, Message> {
     container(column!(
         scrollable(widgets::list_feeds()).width(iced::Fill).height(iced::Fill),
-        button("Go to test!").on_press(Message::ChangePage(Page::testing))
+        button("Go to test!").on_press(Message::ChangePage(Page::Testing))
     ))
     .padding(15)
     .height(Fill)
@@ -105,7 +121,7 @@ fn home(state: &State) -> Element<'_, Message> {
 fn feed_layout(state: &State) -> Element<'_, Message> {
     container(
         column!(
-            button(text("Go Home")).on_press(Message::ChangePage(Page::home)),
+            button(text("Go Home")).on_press(Message::ChangePage(Page::Home)),
             scrollable(widgets::list_items(state.current_feed)).width(iced::Fill).height(iced::Fill),
         )
     )
@@ -127,11 +143,11 @@ fn testing(state: &State) -> Element<'_, Message> {
         button("Add gabe.rocks").on_press(Message::AddFeed(String::from("https://gabe.rocks/rss"))),
         button("Add LSN").on_press(Message::AddFeed(String::from("https://libresolutions.network/rss"))),
         row!(
-            text_input("Add a feed",&state.feed_input).on_input(|val| Message::FieldUpdated(AppField::FeedInput,val)),
+            text_input("Add a feed",&state.feed_input).on_input(|val| Message::FieldUpdated(AppField::FeedInput,val)).width(300),
             button("Add feed!").on_press(Message::AddFeed(state.feed_input.clone()))
-        ),
+        ).spacing(5).padding(10),
         button("Wipe DB").on_press(Message::ResetDB),
-        button("go back!").on_press(Message::ChangePage(Page::home))
+        button("go back!").on_press(Message::ChangePage(Page::Home))
     )
     .spacing(5)
     .into()