Add a tui for ticket

This commit sets up a basic tui for the current functionality. It's
traversable by keyboard and by mouse and shows the ticket state via tab,
info in a row, and the description in it's own box when selected. This
is necessary for a good user experience for in repo tools. Files are
fine, but interactivity is better.

5 files changed, 477 insertions, 16 deletions

diff --git a/Cargo.lock b/Cargo.lock
index e978942..219a070 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -113,6 +113,11 @@ dependencies = [
 ]
 
 [[package]]
+name = "cassowary"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "cc"
 version = "1.0.47"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -256,6 +261,11 @@ dependencies = [
 ]
 
 [[package]]
+name = "either"
+version = "1.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "encode_unicode"
 version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -381,6 +391,14 @@ dependencies = [
 ]
 
 [[package]]
+name = "itertools"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "either 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "itoa"
 version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -499,6 +517,11 @@ dependencies = [
 ]
 
 [[package]]
+name = "numtoa"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "openssl-probe"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -695,6 +718,14 @@ version = "0.1.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "redox_termios"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "redox_users"
 version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -874,6 +905,17 @@ dependencies = [
 ]
 
 [[package]]
+name = "termion"
+version = "1.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.65 (registry+https://github.com/rust-lang/crates.io-index)",
+ "numtoa 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "termios"
 version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -910,7 +952,10 @@ dependencies = [
  "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
  "shared 0.1.0",
  "structopt 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "termion 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "toml 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tui 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "uuid 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -937,6 +982,21 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "tui"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cassowary 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "either 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itertools 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "termion 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-segmentation 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-width 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "unicode-bidi"
 version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -983,6 +1043,14 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
+name = "uuid"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "serde 1.0.102 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "vcpkg"
 version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1063,6 +1131,7 @@ dependencies = [
 "checksum blake2b_simd 0.5.9 (registry+https://github.com/rust-lang/crates.io-index)" = "b83b7baab1e671718d78204225800d6b170e648188ac7dc992e9d6bddf87d0c0"
 "checksum byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a7c3dd8985a7111efc5c80b44e23ecdd8c007de8ade3b96595387e812b957cf5"
 "checksum c2-chacha 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "214238caa1bf3a496ec3392968969cab8549f96ff30652c9e56885329315f6bb"
+"checksum cassowary 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "df8670b8c7b9dae1793364eafadf7239c40d669904660c5960d74cfd80b46a53"
 "checksum cc 1.0.47 (registry+https://github.com/rust-lang/crates.io-index)" = "aa87058dce70a3ff5621797f1506cb837edd02ac4c0ae642b4542dce802908b8"
 "checksum cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 "checksum chrono 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)" = "31850b4a4d6bae316f7a09e691c944c28299298837edc0a03f755618c23cbc01"
@@ -1077,6 +1146,7 @@ dependencies = [
 "checksum difference 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "524cbf6897b527295dff137cec09ecf3a05f4fddffd7dfcd1585403449e74198"
 "checksum dirs 2.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "13aea89a5c93364a98e9b37b2fa237effbb694d5cfe01c5b70941f7eb087d5e3"
 "checksum dirs-sys 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "afa0b23de8fd801745c471deffa6e12d248f962c9fd4b4c33787b055599bde7b"
+"checksum either 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "bb1f6b1ce1c140482ea30ddd3335fc0024ac7ee112895426e0a629a6c20adfe3"
 "checksum encode_unicode 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "a357d28ed41a50f9c765dbfe56cbc04a64e53e5fc58ba79fbc34c10ef3df831f"
 "checksum env_logger 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "aafcde04e90a5226a6443b7aabdb016ba2f8307c847d524724bd9b346dd1a2d3"
 "checksum escargot 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "19db1f7e74438642a5018cdf263bb1325b2e792f02dd0a3ca6d6c0f0d7b1d5a5"
@@ -1089,6 +1159,7 @@ dependencies = [
 "checksum hermit-abi 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "307c3c9f937f38e3534b1d6447ecf090cafcc9744e4a6360e8b037b2cf5af120"
 "checksum humantime 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "df004cfca50ef23c36850aaaa59ad52cc70d0e90243c3c7737a4dd32dc7a3c4f"
 "checksum idna 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "02e2673c30ee86b5b96a9cb52ad15718aa1f966f5ab9ad54a8b95d5ca33120a9"
+"checksum itertools 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f56a2d0bc861f9165be4eb3442afd3c236d8a98afd426f65d92324ae1091a484"
 "checksum itoa 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "501266b7edd0174f8530248f87f99c88fbe60ca4ef3dd486835b8d8d53136f7f"
 "checksum jobserver 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)" = "f2b1d42ef453b30b7387e113da1c83ab1605d90c5b4e0eb8e96d016ed3b8c160"
 "checksum lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
@@ -1103,6 +1174,7 @@ dependencies = [
 "checksum num-integer 0.1.41 (registry+https://github.com/rust-lang/crates.io-index)" = "b85e541ef8255f6cf42bbfe4ef361305c6c135d10919ecc26126c4e5ae94bc09"
 "checksum num-traits 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)" = "d4c81ffc11c212fa327657cb19dd85eb7419e163b5b076bede2bdb5c974c07e4"
 "checksum num_cpus 1.11.1 (registry+https://github.com/rust-lang/crates.io-index)" = "76dac5ed2a876980778b8b85f75a71b6cbf0db0b1232ee12f826bccb00d09d72"
+"checksum numtoa 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b8f8bdf33df195859076e54ab11ee78a1b208382d3a26ec40d142ffc1ecc49ef"
 "checksum openssl-probe 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "77af24da69f9d9341038eba93a073b1fdaaa1b788221b00a69bce9e762cb32de"
 "checksum openssl-sys 0.9.53 (registry+https://github.com/rust-lang/crates.io-index)" = "465d16ae7fc0e313318f7de5cecf57b2fbe7511fd213978b457e1c96ff46736f"
 "checksum paw 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "09c0fc9b564dbc3dc2ed7c92c0c144f4de340aa94514ce2b446065417c4084e9"
@@ -1128,6 +1200,7 @@ dependencies = [
 "checksum rand_os 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "7b75f676a1e053fc562eafbb47838d67c84801e38fc1ba459e8f180deabd5071"
 "checksum rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "678054eb77286b51581ba43620cc911abf02758c91f93f479767aed0f90458b2"
 "checksum redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)" = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
+"checksum redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
 "checksum redox_users 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4ecedbca3bf205f8d8f5c2b44d83cd0690e39ee84b951ed649e9f1841132b66d"
 "checksum regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "dc220bd33bdce8f093101afe22a037b8eb0e5af33592e6a9caafff0d4cb81cbd"
 "checksum regex-syntax 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)" = "11a7e20d1cce64ef2fed88b66d347f88bd9babb82845b2b858f3edbf59a4f716"
@@ -1147,12 +1220,14 @@ dependencies = [
 "checksum synstructure 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)" = "67656ea1dc1b41b1451851562ea232ec2e5a80242139f7e679ceccfb5d61f545"
 "checksum tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
 "checksum termcolor 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "96d6098003bde162e4277c70665bd87c326f5a0c3f3fbfb285787fa482d54e6e"
+"checksum termion 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6a8fb22f7cde82c8220e5aeacb3258ed7ce996142c77cba193f203515e26c330"
 "checksum termios 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "72b620c5ea021d75a735c943269bb07d30c9b77d6ac6b236bc8b5c496ef05625"
 "checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
 "checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
 "checksum time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
 "checksum toml 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)" = "01d1404644c8b12b16bfcffa4322403a91a451584daaaa7c28d3152e6cbc98cf"
 "checksum treeline 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a7f741b240f1a48843f9b8e0444fb55fb2a4ff67293b50a9179dfd5ea67f8d41"
+"checksum tui 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0606ff286997171664d4f5ace6b130dd6ba1b867e6a27433077f618807aedc3b"
 "checksum unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
 "checksum unicode-normalization 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "b561e267b2326bb4cebfc0ef9e68355c7abe6c6f522aeac2f5bf95d56c59bdcf"
 "checksum unicode-segmentation 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e83e153d1053cbb5a118eeff7fd5be06ed99153f00dbcd8ae310c5fb2b22edc0"
@@ -1160,6 +1235,7 @@ dependencies = [
 "checksum unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
 "checksum url 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "75b414f6c464c879d7f9babf951f23bc3743fb7313c081b2e6ca719067ea9d61"
 "checksum utf8parse 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8772a4ccbb4e89959023bc5b7cb8623a795caa7092d99f3aa9501b9484d4557d"
+"checksum uuid 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "9fde2f6a4bea1d6e007c4ad38c6839fa71cbb63b6dbf5b595aa38dc9b1093c11"
 "checksum vcpkg 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "33dd455d0f96e90a75803cfeb7f948768c08d70a6de9a8d2362461935698bf95"
 "checksum vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "05c78687fb1a80548ae3250346c3db86a80a7cdd77bda190189f2d0a0987c81a"
 "checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
diff --git a/ticket/Cargo.toml b/ticket/Cargo.toml
index 1c5c9eb..6c752b5 100644
--- a/ticket/Cargo.toml
+++ b/ticket/Cargo.toml
@@ -15,5 +15,8 @@ serde = { version = "1.0", features = ["derive"] }
 shared = { path = "../shared" }
 structopt = { version = "0.3", features = ["paw"] }
 toml = "0.5"
+uuid = { version = "0.8", features = ["serde", "v1"] }
 log = "0.4"
 pretty_env_logger = "0.3"
+tui = "0.7"
+termion = "1.5"
diff --git a/ticket/src/actions.rs b/ticket/src/actions.rs
new file mode 100644
index 0000000..381c9f7
--- /dev/null
+++ b/ticket/src/actions.rs
@@ -0,0 +1,36 @@
+use crate::Ticket;
+use anyhow::Result;
+use log::*;
+use shared::find_root;
+use std::{
+  fs,
+  path::PathBuf,
+};
+
+pub fn get_open_tickets() -> Result<Vec<Ticket>> {
+  get_tickets(ticket_root()?.join("open"))
+}
+
+pub fn get_closed_tickets() -> Result<Vec<Ticket>> {
+  get_tickets(ticket_root()?.join("closed"))
+}
+
+fn get_tickets(path: PathBuf) -> Result<Vec<Ticket>> {
+  let mut out = Vec::new();
+  debug!("Looking for ticket.");
+  for entry in fs::read_dir(&path)? {
+    let entry = entry?;
+    let path = entry.path();
+    trace!("Looking at entry {}.", path.display());
+    if path.is_file() {
+      trace!("Entry is a file.");
+      out.push(toml::from_slice::<Ticket>(&fs::read(&path)?)?);
+    }
+  }
+  out.sort_by(|a, b| a.number.cmp(&b.number));
+  Ok(out)
+}
+
+pub fn ticket_root() -> Result<PathBuf> {
+  Ok(find_root()?.join(".dev-suite").join("ticket"))
+}
diff --git a/ticket/src/main.rs b/ticket/src/main.rs
index 7e05adf..4d5457d 100644
--- a/ticket/src/main.rs
+++ b/ticket/src/main.rs
@@ -1,3 +1,7 @@
+mod actions;
+mod tui;
+
+use actions::*;
 use anyhow::{
   bail,
   Result,
@@ -12,17 +16,21 @@ use serde::{
   Deserialize,
   Serialize,
 };
-use shared::find_root;
 use std::{
   env,
   fs,
-  path::PathBuf,
   process,
   process::Command,
 };
 
 #[derive(structopt::StructOpt)]
-enum Args {
+struct Args {
+  #[structopt(subcommand)]
+  cmd: Option<Cmd>,
+}
+
+#[derive(structopt::StructOpt)]
+enum Cmd {
   /// Initialize the repo to use ticket
   Init,
   New,
@@ -40,19 +48,25 @@ fn main(args: Args) {
     env::set_var("RUST_LOG", "info");
   });
   pretty_env_logger::init();
-  if let Err(e) = match args {
-    Args::Init => init(),
-    Args::New => new(),
-    Args::Show { id } => show(id),
-    Args::Close { id } => close(id),
-  } {
+
+  if let Some(cmd) = args.cmd {
+    if let Err(e) = match cmd {
+      Cmd::Init => init(),
+      Cmd::New => new(),
+      Cmd::Show { id } => show(id),
+      Cmd::Close { id } => close(id),
+    } {
+      error!("{}", e);
+      std::process::exit(1);
+    }
+  } else if let Err(e) = tui::run() {
     error!("{}", e);
     std::process::exit(1);
   }
 }
 
 fn init() -> Result<()> {
-  let root = find_root()?.join(".dev-suite").join("ticket");
+  let root = ticket_root()?;
   debug!("Creating ticket directory at {}.", root.display());
   debug!("Creating open directory.");
   fs::create_dir_all(&root.join("open"))?;
@@ -141,10 +155,6 @@ fn new() -> Result<()> {
   Ok(())
 }
 
-fn ticket_root() -> Result<PathBuf> {
-  Ok(find_root()?.join(".dev-suite").join("ticket"))
-}
-
 fn show(id: usize) -> Result<()> {
   debug!("Getting ticket root.");
   let ticket_root = ticket_root()?;
@@ -236,7 +246,7 @@ fn close(id: usize) -> Result<()> {
 }
 
 #[derive(Serialize, Deserialize)]
-struct Ticket {
+pub struct Ticket {
   title: String,
   status: Status,
   number: usize,
@@ -245,7 +255,7 @@ struct Ticket {
 }
 
 #[derive(Serialize, Deserialize)]
-enum Status {
+pub enum Status {
   Open,
   Closed,
 }
diff --git a/ticket/src/tui.rs b/ticket/src/tui.rs
new file mode 100644
index 0000000..90dbeb6
--- /dev/null
+++ b/ticket/src/tui.rs
@@ -0,0 +1,336 @@
+use crate::{
+  actions::{
+    get_closed_tickets,
+    get_open_tickets,
+  },
+  Status,
+  Ticket,
+};
+use anyhow::Result;
+use std::{
+  collections::BTreeMap,
+  io,
+  sync::mpsc,
+  thread,
+  time::Duration,
+};
+use termion::{
+  event::Key,
+  input::{
+    MouseTerminal,
+    TermRead,
+  },
+  raw::IntoRawMode,
+  screen::AlternateScreen,
+};
+use tui::{
+  backend::TermionBackend,
+  layout::{
+    Alignment,
+    Constraint,
+    Direction,
+    Layout,
+  },
+  style::{
+    Color,
+    Modifier,
+    Style,
+  },
+  widgets::{
+    Block,
+    Borders,
+    Paragraph,
+    Row,
+    Table,
+    Tabs,
+    Text,
+    Widget,
+  },
+  Terminal,
+};
+
+pub struct TabsState<'a> {
+  pub titles: Vec<&'a str>,
+  pub index: usize,
+}
+
+impl<'a> TabsState<'a> {
+  pub fn new(titles: Vec<&'a str>) -> TabsState {
+    TabsState { titles, index: 0 }
+  }
+
+  pub fn next(&mut self) {
+    self.index = (self.index + 1) % self.titles.len();
+  }
+
+  pub fn previous(&mut self) {
+    if self.index > 0 {
+      self.index -= 1;
+    } else {
+      self.index = self.titles.len() - 1;
+    }
+  }
+}
+pub enum Event<I> {
+  Input(I),
+  Tick,
+}
+
+pub struct TicketState {
+  pub tickets: BTreeMap<String, Vec<Ticket>>,
+  pub index: usize,
+  pub status: Status,
+}
+
+impl TicketState {
+  pub fn new(tickets: BTreeMap<String, Vec<Ticket>>) -> Self {
+    Self {
+      tickets,
+      index: 0,
+      status: Status::Open,
+    }
+  }
+
+  fn len(&self) -> usize {
+    match self.status {
+      Status::Open => self.tickets.get("Open").unwrap().len(),
+      Status::Closed => self.tickets.get("Closed").unwrap().len(),
+    }
+  }
+
+  pub fn next(&mut self) {
+    self.index = (self.index + 1) % self.len();
+  }
+
+  pub fn previous(&mut self) {
+    if self.index > 0 {
+      self.index -= 1;
+    } else {
+      self.index = self.len() - 1;
+    }
+  }
+}
+/// A small event handler that wrap termion input and tick events. Each event
+/// type is handled in its own thread and returned to a common `Receiver`
+#[allow(dead_code)]
+pub struct Events {
+  rx: mpsc::Receiver<Event<Key>>,
+  input_handle: thread::JoinHandle<()>,
+  tick_handle: thread::JoinHandle<()>,
+}
+
+struct App<'a> {
+  tabs: TabsState<'a>,
+  tickets: TicketState,
+}
+#[derive(Debug, Clone, Copy)]
+pub struct Config {
+  pub exit_key: Key,
+  pub tick_rate: Duration,
+}
+
+impl Default for Config {
+  fn default() -> Config {
+    Config {
+      exit_key: Key::Char('q'),
+      tick_rate: Duration::from_millis(250),
+    }
+  }
+}
+
+impl Events {
+  pub fn new() -> Events {
+    Events::with_config(Config::default())
+  }
+
+  pub fn with_config(config: Config) -> Events {
+    let (tx, rx) = mpsc::channel();
+    let input_handle = {
+      let tx = tx.clone();
+      thread::spawn(move || {
+        let stdin = io::stdin();
+        for evt in stdin.keys() {
+          if let Ok(key) = evt {
+            if tx.send(Event::Input(key)).is_err() {
+              return;
+            }
+            if key == config.exit_key {
+              return;
+            }
+          }
+        }
+      })
+    };
+    let tick_handle = {
+      let tx = tx.clone();
+      thread::spawn(move || {
+        let tx = tx.clone();
+        loop {
+          tx.send(Event::Tick).unwrap();
+          thread::sleep(config.tick_rate);
+        }
+      })
+    };
+    Events {
+      rx,
+      input_handle,
+      tick_handle,
+    }
+  }
+
+  pub fn next(&self) -> Result<Event<Key>, mpsc::RecvError> {
+    self.rx.recv()
+  }
+}
+pub fn run() -> Result<()> {
+  // Terminal initialization
+  let stdout = io::stdout().into_raw_mode()?;
+  let stdout = MouseTerminal::from(stdout);
+  let stdout = AlternateScreen::from(stdout);
+  let backend = TermionBackend::new(stdout);
+  let mut terminal = Terminal::new(backend)?;
+  terminal.hide_cursor()?;
+
+  let events = Events::new();
+
+  // App
+  let mut app = App {
+    tabs: TabsState::new(vec!["Open", "Closed"]),
+    tickets: {
+      let mut map = BTreeMap::new();
+      map.insert("Open".into(), get_open_tickets()?);
+      map.insert("Closed".into(), get_closed_tickets()?);
+      TicketState::new(map)
+    },
+  };
+
+  // Main loop
+  loop {
+    terminal.draw(|mut f| {
+      let size = f.size();
+      let vertical = Layout::default()
+        .direction(Direction::Vertical)
+        .constraints([Constraint::Length(3), Constraint::Min(0)].as_ref())
+        .split(size);
+      let horizontal = Layout::default()
+        .direction(Direction::Horizontal)
+        .vertical_margin(3)
+        .constraints(
+          [Constraint::Percentage(50), Constraint::Percentage(50)].as_ref(),
+        )
+        .split(size);
+
+      Tabs::default()
+        .block(Block::default().borders(Borders::ALL).title("Status"))
+        .titles(&app.tabs.titles)
+        .select(app.tabs.index)
+        .style(Style::default().fg(Color::Cyan))
+        .highlight_style(Style::default().fg(Color::Yellow))
+        .render(&mut f, vertical[0]);
+
+      match app.tabs.index {
+        0 => {
+          app.table("Open").render(&mut f, horizontal[0]);
+
+          Paragraph::new(app.description("Open").iter())
+            .block(Block::default().title("Description").borders(Borders::ALL))
+            .alignment(Alignment::Left)
+            .wrap(true)
+            .render(&mut f, horizontal[1]);
+        }
+        1 => {
+          app.table("Closed").render(&mut f, horizontal[0]);
+
+          Paragraph::new(app.description("Closed").iter())
+            .block(Block::default().title("Description").borders(Borders::ALL))
+            .alignment(Alignment::Left)
+            .wrap(true)
+            .render(&mut f, horizontal[1]);
+        }
+        _ => {}
+      }
+    })?;
+
+    match events.next()? {
+      Event::Input(input) => match input {
+        Key::Char('q') => {
+          break;
+        }
+        Key::Right => {
+          if app.tabs.index == 0 {
+            app.tickets.status = Status::Closed;
+            app.tickets.index = 0;
+          }
+          app.tabs.next();
+        }
+        Key::Left => {
+          if app.tabs.index != 0 {
+            app.tickets.status = Status::Open;
+            app.tickets.index = 0;
+          }
+          app.tabs.previous();
+        }
+        Key::Up => app.tickets.previous(),
+        Key::Down => app.tickets.next(),
+        _ => {}
+      },
+      Event::Tick => continue,
+    }
+  }
+  Ok(())
+}
+
+impl<'a> App<'a> {
+  fn table(&self, tab: &'a str) -> impl Widget + '_ {
+    Table::new(
+      ["Id", "Title", "Assignee"].iter(),
+      self
+        .tickets
+        .tickets
+        .get(tab)
+        .unwrap()
+        .iter()
+        .enumerate()
+        .map(move |(idx, i)| {
+          let data = vec![
+            i.number.to_string(),
+            i.title.to_string(),
+            i.assignee
+              .as_ref()
+              .cloned()
+              .unwrap_or_else(|| "None".into()),
+          ]
+          .into_iter();
+          let normal_style = Style::default().fg(Color::Yellow);
+          let selected_style =
+            Style::default().fg(Color::White).modifier(Modifier::BOLD);
+          if idx == self.tickets.index {
+            Row::StyledData(data, selected_style)
+          } else {
+            Row::StyledData(data, normal_style)
+          }
+        }),
+    )
+    .block(Block::default().title(tab).borders(Borders::ALL))
+    .header_style(Style::default().fg(Color::Yellow))
+    .widths(&[
+      Constraint::Percentage(10),
+      Constraint::Percentage(70),
+      Constraint::Percentage(20),
+    ])
+    .style(Style::default().fg(Color::White))
+    .column_spacing(1)
+  }
+
+  fn description(&self, tab: &'a str) -> Vec<Text> {
+    let mut description = vec![];
+    for (idx, i) in self.tickets.tickets.get(tab).unwrap().iter().enumerate() {
+      if idx == self.tickets.index {
+        description = vec![Text::raw(i.description.to_owned())];
+        break;
+      }
+    }
+
+    description
+  }
+}