Rendering tasks to their individual columns

Cargo.lock

@@ -51,6 +51,23 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "hashbrown"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
+
+[[package]]
+name = "indexmap"
+version = "1.9.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1885e79c1fc4b10f0e172c475f458b7f7b93061064d98c3293e98c5ba0c8b399"
+dependencies = [
+ "autocfg",
+ "hashbrown",
+ "serde",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.4"
@@ -62,6 +79,7 @@ name = "kanban-tui"
 version = "0.1.0"
 dependencies = [
  "crossterm",
+ "indexmap",
  "serde",
  "serde_json",
  "tui",

Cargo.toml

@@ -10,3 +10,4 @@ tui = "0.19.0"
 crossterm = "0.25"
 serde = { version = "1.0.148" , features = [ "derive" ] }
 serde_json = "1.0.89"
+indexmap = { version = "1.9.2" , features = [ "serde" ] }

src/input.rs

@@ -0,0 +1,22 @@
+use std::cmp::min;
+use crossterm::event;
+use crossterm::event::{Event, KeyCode};
+use crate::types::AppState;
+
+pub fn handle_input(state: &mut AppState) -> Result<(), std::io::Error> {
+    if let Event::Key(key) = event::read()? {
+        match key.code {
+            KeyCode::Char('q') => state.quit = true,
+            KeyCode::Char('h') |
+            KeyCode::Left      => state.selected_column = state.selected_column.saturating_sub(1),
+            KeyCode::Char('j') |
+            KeyCode::Down      => state.selected_task[state.selected_column] += 1,
+            KeyCode::Char('k') |
+            KeyCode::Up        => state.selected_task[state.selected_column] -= 1,
+            KeyCode::Char('l') |
+            KeyCode::Right     => state.selected_column = min(state.selected_column + 1, 4),
+            _ => {}
+        }
+    }
+    Ok(())
+}

src/main.rs

@@ -1,14 +1,14 @@
+#![allow(dead_code)]
 mod ui;
 mod types;
+mod input;
 
 use std::{io};
-use crossterm::{
+use crossterm::{event::*, terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen}};
-    event::{self, DisableMouseCapture, EnableMouseCapture, Event, KeyCode},
-    terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen}
-};
 use tui::backend::CrosstermBackend;
 use tui::Terminal;
-use crate::types::{Project, Task};
+use crate::input::handle_input;
+use crate::types::*;
 
 fn main() -> Result<(), io::Error> {
     // setup terminal
@@ -18,17 +18,12 @@ fn main() -> Result<(), io::Error> {
     let backend = CrosstermBackend::new(stdout);
     let mut terminal = Terminal::new(backend)?;
 
-    let mut project = Project::load();
+    let mut state = AppState::new(Project::load());
 
     loop {
-        terminal.draw(|f| ui::draw(f, &mut project))?;
+        terminal.draw(|f| ui::draw(f, &mut state))?;
-
+        handle_input(&mut state)?;
-        if let Event::Key(key) = event::read()? {
+        if state.quit { break }
-            match key.code {
-                KeyCode::Char('q') => break,
-                _ => {}
-            }
-        }
     }
 
     // restore terminal

src/types.rs

@@ -1,6 +1,7 @@
+use indexmap::IndexMap;
 use serde::{Deserialize, Serialize};
 
-#[derive(Deserialize, Serialize, Debug)]
+#[derive(Deserialize, Serialize, Copy, Clone, Debug, PartialEq, PartialOrd, Eq, Ord, Hash)]
 pub enum TaskStatus {
     Done,
     Todo,
@@ -13,7 +14,6 @@ pub enum TaskStatus {
 pub struct Task {
     pub title: String,
     pub description: String,
-    pub status: TaskStatus,
 }
 
 impl Default for Task {
@@ -21,7 +21,6 @@ impl Default for Task {
         Task {
             title: String::new(),
             description: String::new(),
-            status: TaskStatus::Backlog,
         }
     }
 }
@@ -29,16 +28,25 @@ impl Default for Task {
 #[derive(Deserialize, Serialize, Debug)]
 pub struct Project {
     pub name: String,
-    pub tasks: Vec<Task>,
+    pub tasks: IndexMap<TaskStatus, Vec<Task>>,
 }
 
 impl Project {
     fn new(name: &str) -> Self {
-        Project { name: name.to_owned() , tasks: Vec::new() }
+        Project {
+            name: name.to_owned(),
+            tasks: IndexMap::from(
+                [(TaskStatus::Done, vec![]),
+                    (TaskStatus::Todo, vec![]),
+                    (TaskStatus::InProgress, vec![]),
+                    (TaskStatus::Testing, vec![]),
+                    (TaskStatus::Backlog, vec![])],
+            ),
+        }
     }
 
-    fn add_task(&mut self, task: Task) {
+    fn add_task(&mut self, status: TaskStatus, task: Task) {
-        self.tasks.push(task);
+        self.tasks.entry(status).or_default().push(task);
     }
 }
 
@@ -46,7 +54,7 @@ impl Default for Project {
     fn default() -> Self {
         Project {
             name: String::new(),
-            tasks: Vec::new(),
+            tasks: IndexMap::new(),
         }
     }
 }
@@ -60,7 +68,6 @@ impl Project {
     }
     /// Comment out cause this is dangerous
     pub fn save() {
-
         // let mut project = Project::new("Kanban Tui");
         // project.add_task(Task::default());
         // project.add_task(Task::default());
@@ -68,3 +75,22 @@ impl Project {
         // std::fs::write("./project.json", json).unwrap();
     }
 }
+
+pub struct AppState {
+    pub selected_column: usize,
+    pub selected_task: [u8; 5],
+    pub current_project: Project,
+    pub quit: bool,
+}
+
+impl AppState {
+    pub fn new(project: Project) -> Self {
+        AppState {
+            selected_column: 0,
+            selected_task: [0, 0, 0, 0, 0],
+            quit: false,
+            current_project: project,
+        }
+    }
+}
+

src/ui.rs

@@ -1,36 +1,47 @@
 use tui::backend::{Backend};
-use tui::layout::{Constraint, Direction, Layout, Rect};
+use tui::layout::*;
 use tui::{Frame};
+use tui::style::{Color, Modifier, Style};
 use tui::text::{Span, Spans};
-use tui::widgets::{Block, Borders, List, ListItem, Paragraph};
+use tui::widgets::*;
-use crate::types::{Project, Task};
+use crate::types::*;
 
-fn draw_tasks<B: Backend>(f: &mut Frame<B>, columns: Vec<Rect>, tasks: &Vec<Task>) {
+fn draw_tasks<B: Backend>(f: &mut Frame<B>, area: &Rect, state: &AppState) {
-    let ts: Vec<ListItem> = tasks.iter().map(|t| {
+    let columns = Layout::default()
-        ListItem::new(vec![Spans::from(Span::raw(&t.title))])
+        .direction(Direction::Horizontal)
-    }).collect();
+        .constraints(
+            vec![Constraint::Percentage(20);
+                 state.current_project.tasks.len()].as_ref()
+        )
+        .split(*area);
 
-    let cols = &["DONE", "TODO", "IN-PROGRESS", "TESTING", "BACKLOG"];
+    for (i, (status, tasks)) in state.current_project.tasks.iter().enumerate() {
-    let blocks: Vec<Block> =
+        let items: Vec<ListItem> = tasks.iter().map(|t| {
-        columns.iter().enumerate()
+            ListItem::new(vec![Spans::from(Span::raw(&t.title))])
-            .map(|(i, col)| {
+        }).collect();
-                Block::default()
+        let mut style = Style::default();
-                    .title(cols[i])
+        if i == state.selected_column { style = style.fg(Color::Green); };
-                    .borders(Borders::ALL)
+        let mut s = Span::raw(format!("{:?}", status));
-            }).collect();
+        s.style = Style::default()
-    let l1 = List::new(ts).block(blocks[0].clone());
+            .add_modifier(Modifier::BOLD | Modifier::ITALIC | Modifier::UNDERLINED)
-    let l2 = List::new(vec![]).block(blocks[1].clone());
+            .fg(Color::White);
-    let l3 = List::new(vec![]).block(blocks[2].clone());
+        let block = Block::default()
-    let l4 = List::new(vec![]).block(blocks[3].clone());
+            .style(style)
-    let l5 = List::new(vec![]).block(blocks[4].clone());
+            .title(s)
-    f.render_widget(l1, columns[0]);
+            .borders(Borders::ALL);
-    f.render_widget(l2, columns[1]);
+        let list = List::new(items).block(block);
-    f.render_widget(l3, columns[2]);
+        f.render_widget(list, columns[i])
-    f.render_widget(l4, columns[3]);
+    }
-    f.render_widget(l5, columns[4]);
 }
 
-pub fn draw<B: Backend>(f: &mut Frame<B>, project: &mut Project) {
+fn draw_task_info<B: Backend>(f: &mut Frame<B>, area: &Rect, state: &AppState) {
+    let block = Block::default()
+        .title("TASK INFO")
+        .borders(Borders::ALL);
+    f.render_widget(block, *area);
+}
+
+pub fn draw<B: Backend>(f: &mut Frame<B>, state: &mut AppState) {
     let main_layout = Layout::default()
         .direction(Direction::Vertical)
         .constraints(
@@ -42,37 +53,21 @@ pub fn draw<B: Backend>(f: &mut Frame<B>, project: &mut Project) {
             ].as_ref()
         ).split(f.size());
 
-    let columns = Layout::default()
-        .direction(Direction::Horizontal)
-        .constraints(
-            [
-                Constraint::Percentage(20),
-                Constraint::Percentage(20),
-                Constraint::Percentage(20),
-                Constraint::Percentage(20),
-                Constraint::Percentage(20),
-            ].as_ref()
-        )
-        .split(main_layout[1]);
-
     let block = Block::default()
         .title("KANBAN BOARD")
         .borders(Borders::ALL);
     f.render_widget(block, main_layout[0]);
 
-    draw_tasks(f, columns, &project.tasks);
+    draw_tasks(f, &main_layout[1], &state);
+
+    draw_task_info(f, &main_layout[2], &state);
 
     let block = Block::default()
-        .title("TASK INFO")
+        .title("KEYBINDINGS")
-        .borders(Borders::ALL);
-    f.render_widget(block, main_layout[2]);
-
-    let block = Block::default()
-        .title("FOOTER")
         .borders(Borders::ALL);
 
     let foot_txt =
-        Paragraph::new("Press 'q' to quit")
+        Paragraph::new("q : Quit | ⏪🔽🔼⏩ or hjkl : Navigation")
             .block(block);
     f.render_widget(foot_txt, main_layout[3]);
 }