Types, and testing formatted view

src/main.rs

@@ -1,3 +1,5 @@
+pub mod types;
+
 use std::any::Any;
 
 use pulse_ui::{
@@ -13,12 +15,38 @@ use pulse_ui::{
     },
 };
 
+use crate::types::{Formatted, WatchListItem, space_out};
+
 pub struct PulseTradeApp {
     command: State<InputState>,
+    watch_list: State<Vec<WatchListItem>>,
 }
 
 impl App for PulseTradeApp {
-    async fn init(&mut self, ctx: &pulse_ui::state::Context) {}
+    async fn init(&mut self, ctx: &pulse_ui::state::Context) {
+        let mut watch_list = self.watch_list.lock().await;
+
+        watch_list.push(WatchListItem {
+            symbol: "BTC".to_string(),
+            price: 118_402.12,
+            trend: 0.82,
+        });
+        watch_list.push(WatchListItem {
+            symbol: "ETH".to_string(),
+            price: 3_912.48,
+            trend: 0.41,
+        });
+        watch_list.push(WatchListItem {
+            symbol: "SOL".to_string(),
+            price: 182.91,
+            trend: 2.18,
+        });
+        watch_list.push(WatchListItem {
+            symbol: "XRP".to_string(),
+            price: 2.84,
+            trend: 1.22,
+        });
+    }
 
     async fn update(&mut self, ctx: &pulse_ui::state::Context, event: Box<dyn Any + Send + Sync>) {
         if let Some(Refresh) = event.downcast_ref() {
@@ -77,16 +105,10 @@ impl App for PulseTradeApp {
             SpacedColumns(vec![
                 (
                     LayoutItem::Widget(Size::Flex(1)),
-                    Box::new(
-                        vec![
-                            " WATCHLIST",
-                            " BTC  118,402.12  ▲ 0.82%",
-                            " ETH    3,912.48  ▼ 0.41%",
-                            " SOL      182.91  ▲ 2.18%",
-                            " XRP        2.84  ▲ 1.22%",
-                        ]
-                        .join("\n"),
-                    ),
+                    Box::new(format!(
+                        " WATCHLIST\n{}",
+                        space_out(self.watch_list.lock().await.get_formatted()).join("\n")
+                    )),
                 ),
                 (
                     LayoutItem::Widget(Size::Flex(1)),
@@ -129,7 +151,8 @@ impl App for PulseTradeApp {
                         vec![
                             " SIGNALS",
                             " BUY  BTC  LIM 118,800.12",
-                            " STL  BTC  120,00.00",
+                            " BUY  BTC  STL 118,000.00",
+                            " BUY  BTC  TAP 120,000.00",
                         ]
                         .join("\n"),
                     ),
@@ -150,7 +173,7 @@ impl App for PulseTradeApp {
             ]),
         );
 
-        layout.draw(6, Input("> ", &*self.command.lock().await));
+        layout.draw(6, Input(" > ", &*self.command.lock().await));
     }
 }
 
@@ -158,6 +181,7 @@ impl App for PulseTradeApp {
 async fn main() {
     pulse_ui::run(|ctx| PulseTradeApp {
         command: ctx.use_state(InputState::new()),
+        watch_list: ctx.use_state(Vec::new()),
     })
     .await;
 }

src/types.rs

@@ -0,0 +1,94 @@
+pub trait Formatted {
+    fn get_formatted(&self) -> Vec<String>;
+}
+
+pub struct WatchListItem {
+    pub symbol: String,
+    pub price: f64,
+    pub trend: f64,
+}
+
+pub struct ActivePosition {
+    pub symbol: String,
+    pub profit: f64,
+    pub lot: f64,
+}
+
+pub struct Account {
+    pub equity: f64,
+    pub liquid: f64,
+    pub unreal: f64,
+    pub realized: f64,
+    pub margin: f64,
+}
+
+impl<T: Formatted> Formatted for Vec<T> {
+    fn get_formatted(&self) -> Vec<String> {
+        let mut output = Vec::new();
+
+        let rows: Vec<Vec<String>> = self.iter().map(|v| v.get_formatted()).collect();
+
+        if rows.is_empty() {
+            return output;
+        }
+
+        let column_count = rows.iter().map(|r| r.len()).max().unwrap_or(0);
+
+        let mut widths = vec![0; column_count];
+
+        // Find the largest width per column
+        for row in &rows {
+            for (i, col) in row.iter().enumerate() {
+                widths[i] = widths[i].max(col.len());
+            }
+        }
+
+        // Render rows
+        for (row_idx, row) in rows.iter().enumerate() {
+            let mut row_out = String::new();
+
+            for (col_idx, col) in row.iter().enumerate() {
+                let width = widths[col_idx];
+
+                // Right-align numbers, left-align text could be customized here
+                row_out.push_str(&format!("{:>width$}", col, width = width));
+
+                if col_idx + 1 != row.len() {
+                    row_out.push_str("  ");
+                }
+            }
+
+            if row_idx + 1 != rows.len() {
+                output.push(row_out);
+            }
+        }
+
+        output
+    }
+}
+
+impl Formatted for WatchListItem {
+    fn get_formatted(&self) -> Vec<String> {
+        vec![
+            self.symbol.to_string(),
+            self.price.to_string(),
+            format!(
+                "{} {}",
+                if self.trend.is_sign_positive() {
+                    "▲"
+                } else {
+                    "▼"
+                },
+                self.trend.abs()
+            ),
+        ]
+    }
+}
+
+pub fn space_out(mut items: Vec<String>) -> Vec<String> {
+    for item in &mut items {
+        item.insert(0, ' ');
+    }
+
+    items
+}