From 18194f586cefafc9d2301c95fa5073d4294cc515 Mon Sep 17 00:00:00 2001
From: Joscha <joscha@plugh.de>
Date: Tue, 15 Feb 2022 23:16:01 +0100
Subject: [PATCH] Render basic tui and restore terminal

---
 Cargo.lock           | 83 ++++++++++++++++++++++++++++++++++++++++++++
 cove-tui/Cargo.toml  | 10 ++++++
 cove-tui/src/main.rs | 46 ++++++++++++++++++++++--
 3 files changed, 137 insertions(+), 2 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 5737358..7daaf5e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -70,6 +70,12 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c4872d67bab6358e59559027aa3b9157c53d9358c51423c17554809a8858e0f8"
 
+[[package]]
+name = "cassowary"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df8670b8c7b9dae1793364eafadf7239c40d669904660c5960d74cfd80b46a53"
+
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
@@ -105,6 +111,12 @@ dependencies = [
 [[package]]
 name = "cove-tui"
 version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "crossterm",
+ "tokio",
+ "tui",
+]
 
 [[package]]
 name = "cpufeatures"
@@ -115,6 +127,31 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "crossterm"
+version = "0.22.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c85525306c4291d1b73ce93c8acf9c339f9b213aef6c1d85c3830cbf1c16325c"
+dependencies = [
+ "bitflags",
+ "crossterm_winapi",
+ "libc",
+ "mio",
+ "parking_lot",
+ "signal-hook",
+ "signal-hook-mio",
+ "winapi",
+]
+
+[[package]]
+name = "crossterm_winapi"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2ae1b35a484aa10e07fe0638d02301c5ad24de82d310ccbd2f3693da5f09bf1c"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "crypto-common"
 version = "0.1.2"
@@ -638,6 +675,27 @@ dependencies = [
  "digest 0.10.2",
 ]
 
+[[package]]
+name = "signal-hook"
+version = "0.3.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "647c97df271007dcea485bb74ffdb57f2e683f1306c854f468a0c244badabf2d"
+dependencies = [
+ "libc",
+ "signal-hook-registry",
+]
+
+[[package]]
+name = "signal-hook-mio"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29fd5867f1c4f2c5be079aee7a2adf1152ebb04a4bc4d341f504b7dece607ed4"
+dependencies = [
+ "libc",
+ "mio",
+ "signal-hook",
+]
+
 [[package]]
 name = "signal-hook-registry"
 version = "1.4.0"
@@ -767,6 +825,19 @@ dependencies = [
  "tungstenite",
 ]
 
+[[package]]
+name = "tui"
+version = "0.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23ed0a32c88b039b73f1b6c5acbd0554bfa5b6be94467375fd947c4de3a02271"
+dependencies = [
+ "bitflags",
+ "cassowary",
+ "crossterm",
+ "unicode-segmentation",
+ "unicode-width",
+]
+
 [[package]]
 name = "tungstenite"
 version = "0.16.0"
@@ -807,6 +878,18 @@ dependencies = [
  "tinyvec",
 ]
 
+[[package]]
+name = "unicode-segmentation"
+version = "1.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7e8820f5d777f6224dc4be3632222971ac30164d4a258d595640799554ebfd99"
+
+[[package]]
+name = "unicode-width"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ed742d4ea2bd1176e236172c8429aaf54486e7ac098db29ffe6529e0ce50973"
+
 [[package]]
 name = "unicode-xid"
 version = "0.2.2"
diff --git a/cove-tui/Cargo.toml b/cove-tui/Cargo.toml
index ae4e3fb..aaad749 100644
--- a/cove-tui/Cargo.toml
+++ b/cove-tui/Cargo.toml
@@ -4,3 +4,13 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+anyhow = "1.0.53"
+# cove-core = { path = "../cove-core" }
+crossterm = "0.22.1"
+# futures = "0.3.21"
+# serde_json = "1.0.78"
+# thiserror = "1.0.30"
+tokio = { version = "1.16.1", features = ["full"] }
+# tokio-stream = "0.1.8"
+# tokio-tungstenite = "0.16.1"
+tui = "0.17.0"
diff --git a/cove-tui/src/main.rs b/cove-tui/src/main.rs
index e7a11a9..b3d6126 100644
--- a/cove-tui/src/main.rs
+++ b/cove-tui/src/main.rs
@@ -1,3 +1,45 @@
-fn main() {
-    println!("Hello, world!");
+use std::io::{self, Stdout};
+use std::time::Duration;
+
+use crossterm::event::{DisableMouseCapture, EnableMouseCapture};
+use crossterm::execute;
+use crossterm::terminal::{EnterAlternateScreen, LeaveAlternateScreen};
+use tokio::time;
+use tui::backend::CrosstermBackend;
+use tui::widgets::{Block, Borders};
+use tui::Terminal;
+
+async fn run(terminal: &mut Terminal<CrosstermBackend<Stdout>>) -> anyhow::Result<()> {
+    terminal.draw(|f| {
+        let block = Block::default().title("Block").borders(Borders::ALL);
+        f.render_widget(block, f.size());
+    })?;
+    time::sleep(Duration::from_secs(1)).await;
+    Ok(())
+}
+
+#[tokio::main]
+async fn main() -> anyhow::Result<()> {
+    let mut terminal = Terminal::new(CrosstermBackend::new(io::stdout()))?;
+
+    crossterm::terminal::enable_raw_mode()?;
+    execute!(
+        terminal.backend_mut(),
+        EnterAlternateScreen,
+        EnableMouseCapture
+    )?;
+
+    // Defer error handling so the terminal always gets restored properly
+    let result = run(&mut terminal).await;
+
+    crossterm::terminal::disable_raw_mode()?;
+    execute!(
+        terminal.backend_mut(),
+        LeaveAlternateScreen,
+        DisableMouseCapture
+    )?;
+
+    result?;
+
+    Ok(())
 }