From eb9829f3dd8cfb82e0870bf7d306ceee56c317a9 Mon Sep 17 00:00:00 2001
From: Adam Perkowski <adas1per@protonmail.com>
Date: Tue, 3 Dec 2024 23:18:37 +0100
Subject: [PATCH] shaderz

---
 Cargo.lock | 386 ++++++++++++++++++++++++++++++++++++++++++++++++++++-
 Cargo.toml |   6 +-
 src/tui.rs |  75 ++++++++++-
 3 files changed, 462 insertions(+), 5 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 69f10fc..9ed972f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -26,6 +26,12 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "allocator-api2"
+version = "0.2.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "683d7910e743518b0e34f1186f92494becacb047c7b6bf616c96772180fef923"
+
 [[package]]
 name = "anes"
 version = "0.1.6"
@@ -81,6 +87,12 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
+[[package]]
+name = "anyhow"
+version = "1.0.94"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1fd03a028ef38ba2276dce7e33fcd6369c158a1bca17946c4b1b701891c1ff7"
+
 [[package]]
 name = "async-stream"
 version = "0.3.6"
@@ -142,6 +154,31 @@ version = "2.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
 
+[[package]]
+name = "bon"
+version = "3.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9276fe602371cd8a7f70fe68c4db55b2d3e92c570627d6ed0427646edfa5cf47"
+dependencies = [
+ "bon-macros",
+ "rustversion",
+]
+
+[[package]]
+name = "bon-macros"
+version = "3.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94828b84b32b4f3ac3865f692fcdbc46c7d0dd87b29658a391d58a244e1ce45a"
+dependencies = [
+ "darling",
+ "ident_case",
+ "prettyplease",
+ "proc-macro2",
+ "quote",
+ "rustversion",
+ "syn",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.16.0"
@@ -154,12 +191,27 @@ version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ac0150caa2ae65ca5bd83f25c7de183dea78d4d366469f148435e2acfbad0da"
 
+[[package]]
+name = "cassowary"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df8670b8c7b9dae1793364eafadf7239c40d669904660c5960d74cfd80b46a53"
+
 [[package]]
 name = "cast"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"
 
+[[package]]
+name = "castaway"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0abae9be0aaf9ea96a3b1b8b1b55c602ca751eba1b1500220cea4ecbafe7c0d5"
+dependencies = [
+ "rustversion",
+]
+
 [[package]]
 name = "cc"
 version = "1.2.1"
@@ -257,6 +309,26 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "colorsys"
+version = "0.6.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "54261aba646433cb567ec89844be4c4825ca92a4f8afba52fc4dd88436e31bbd"
+
+[[package]]
+name = "compact_str"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6050c3a16ddab2e412160b31f2c871015704239bca62f72f6e5f0be631d3f644"
+dependencies = [
+ "castaway",
+ "cfg-if",
+ "itoa",
+ "rustversion",
+ "ryu",
+ "static_assertions",
+]
+
 [[package]]
 name = "core-foundation"
 version = "0.9.4"
@@ -285,7 +357,7 @@ dependencies = [
  "clap",
  "criterion-plot",
  "is-terminal",
- "itertools",
+ "itertools 0.10.5",
  "num-traits",
  "once_cell",
  "oorandom",
@@ -306,7 +378,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6b50826342786a51a89e2da3a28f1c32b06e387201bc2d19791f622c673706b1"
 dependencies = [
  "cast",
- "itertools",
+ "itertools 0.10.5",
 ]
 
 [[package]]
@@ -334,12 +406,79 @@ version = "0.8.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "22ec99545bb0ed0ea7bb9b8e1e9122ea386ff8a48c0922e43f36d45ab09e0e80"
 
+[[package]]
+name = "crossterm"
+version = "0.28.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "829d955a0bb380ef178a640b91779e3987da38c9aea133b20614cfed8cdea9c6"
+dependencies = [
+ "bitflags",
+ "crossterm_winapi",
+ "futures-core",
+ "mio",
+ "parking_lot",
+ "rustix",
+ "signal-hook",
+ "signal-hook-mio",
+ "winapi",
+]
+
+[[package]]
+name = "crossterm_winapi"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acdd7c62a3665c7f6830a51635d9ac9b23ed385797f70a83bb8bafe9c572ab2b"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "crunchy"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
 
+[[package]]
+name = "darling"
+version = "0.20.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6f63b86c8a8826a49b8c21f08a2d07338eec8d900540f8630dc76284be802989"
+dependencies = [
+ "darling_core",
+ "darling_macro",
+]
+
+[[package]]
+name = "darling_core"
+version = "0.20.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95133861a8032aaea082871032f5815eb9e98cef03fa916ab4500513994df9e5"
+dependencies = [
+ "fnv",
+ "ident_case",
+ "proc-macro2",
+ "quote",
+ "strsim",
+ "syn",
+]
+
+[[package]]
+name = "darling_macro"
+version = "0.20.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d336a2a514f6ccccaa3e09b02d41d35330c07ddf03a62165fcec10bb561c7806"
+dependencies = [
+ "darling_core",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "diff"
+version = "0.1.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56254986775e3233ffa9c4d7d3faaf6d36a2c09d30b20687e9f88bc8bafc16c8"
+
 [[package]]
 name = "displaydoc"
 version = "0.2.5"
@@ -394,6 +533,12 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
+[[package]]
+name = "foldhash"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f81ec6369c545a7d40e4589b5597581fa1c441fe1cce96dd1de43159910a36a2"
+
 [[package]]
 name = "foreign-types"
 version = "0.3.2"
@@ -558,6 +703,11 @@ name = "hashbrown"
 version = "0.15.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bf151400ff0baff5465007dd2f3e717f3fe502074ca563069ce3a6629d07b289"
+dependencies = [
+ "allocator-api2",
+ "equivalent",
+ "foldhash",
+]
 
 [[package]]
 name = "heck"
@@ -807,6 +957,12 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "ident_case"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
+
 [[package]]
 name = "idna"
 version = "1.0.3"
@@ -838,6 +994,26 @@ dependencies = [
  "hashbrown",
 ]
 
+[[package]]
+name = "indoc"
+version = "2.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b248f5224d1d606005e02c97f5aa4e88eeb230488bcc03bc9ca4d7991399f2b5"
+
+[[package]]
+name = "instability"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b829f37dead9dc39df40c2d3376c179fdfd2ac771f53f55d3c30dc096a3c0c6e"
+dependencies = [
+ "darling",
+ "indoc",
+ "pretty_assertions",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "ipnet"
 version = "2.10.1"
@@ -870,6 +1046,15 @@ dependencies = [
  "either",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "413ee7dfc52ee1a4949ceeb7dbc8a33f2d6c088194d9f922fb8318faf1f01186"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.14"
@@ -925,6 +1110,15 @@ version = "0.4.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
 
+[[package]]
+name = "lru"
+version = "0.12.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "234cf4f4a04dc1f57e24b96cc0cd600cf2af460d4161ac5ecdd0af8e1f3b2a38"
+dependencies = [
+ "hashbrown",
+]
+
 [[package]]
 name = "memchr"
 version = "2.7.4"
@@ -954,6 +1148,7 @@ checksum = "80e04d1dcff3aae0704555fe5fee3bcfaf3d1fdf8a7e521d5b9d2b42acb52cec"
 dependencies = [
  "hermit-abi 0.3.9",
  "libc",
+ "log",
  "wasi",
  "windows-sys 0.52.0",
 ]
@@ -988,13 +1183,17 @@ dependencies = [
 name = "nvrs"
 version = "0.1.6-pre1"
 dependencies = [
+ "anyhow",
  "clap",
  "colored",
  "criterion",
+ "crossterm",
  "futures",
+ "ratatui",
  "reqwest",
  "serde",
  "serde_json",
+ "tachyonfx",
  "thiserror",
  "tokio",
  "tokio-test",
@@ -1089,6 +1288,12 @@ dependencies = [
  "windows-targets 0.52.6",
 ]
 
+[[package]]
+name = "paste"
+version = "1.0.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
+
 [[package]]
 name = "percent-encoding"
 version = "2.3.1"
@@ -1141,6 +1346,26 @@ dependencies = [
  "plotters-backend",
 ]
 
+[[package]]
+name = "pretty_assertions"
+version = "1.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ae130e2f271fbc2ac3a40fb1d07180839cdbbe443c7a27e1e3c13c5cac0116d"
+dependencies = [
+ "diff",
+ "yansi",
+]
+
+[[package]]
+name = "prettyplease"
+version = "0.2.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "64d1ec885c64d0457d564db4ec299b2dae3f9c02808b8ad9c3a089c591b18033"
+dependencies = [
+ "proc-macro2",
+ "syn",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.92"
@@ -1159,6 +1384,27 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "ratatui"
+version = "0.29.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eabd94c2f37801c20583fc49dd5cd6b0ba68c716787c2dd6ed18571e1e63117b"
+dependencies = [
+ "bitflags",
+ "cassowary",
+ "compact_str",
+ "crossterm",
+ "indoc",
+ "instability",
+ "itertools 0.13.0",
+ "lru",
+ "paste",
+ "strum",
+ "unicode-segmentation",
+ "unicode-truncate",
+ "unicode-width 0.2.0",
+]
+
 [[package]]
 name = "rayon"
 version = "1.10.0"
@@ -1332,6 +1578,12 @@ dependencies = [
  "untrusted",
 ]
 
+[[package]]
+name = "rustversion"
+version = "1.0.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0e819f2bc632f285be6d7cd36e25940d45b2391dd6d9b939e79de557f7014248"
+
 [[package]]
 name = "ryu"
 version = "1.0.18"
@@ -1444,6 +1696,27 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 
+[[package]]
+name = "signal-hook"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8621587d4798caf8eb44879d42e56b9a93ea5dcd315a6487c357130095b62801"
+dependencies = [
+ "libc",
+ "signal-hook-registry",
+]
+
+[[package]]
+name = "signal-hook-mio"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34db1a06d485c9142248b7a054f034b349b212551f3dfd19c94d45a754a217cd"
+dependencies = [
+ "libc",
+ "mio",
+ "signal-hook",
+]
+
 [[package]]
 name = "signal-hook-registry"
 version = "1.4.2"
@@ -1453,6 +1726,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "simple-easing"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "832ddd7df0d98d6fd93b973c330b7c8e0742d5cb8f1afc7dea89dba4d2531aa1"
+
 [[package]]
 name = "slab"
 version = "0.4.9"
@@ -1490,6 +1769,40 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
 
+[[package]]
+name = "static_assertions"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
+
+[[package]]
+name = "strsim"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
+
+[[package]]
+name = "strum"
+version = "0.26.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8fec0f0aef304996cf250b31b5a10dee7980c85da9d759361292b8bca5a18f06"
+dependencies = [
+ "strum_macros",
+]
+
+[[package]]
+name = "strum_macros"
+version = "0.26.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c6bee85a5a24955dc440386795aa378cd9cf82acd5f764469152d2270e581be"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "rustversion",
+ "syn",
+]
+
 [[package]]
 name = "subtle"
 version = "2.6.1"
@@ -1527,6 +1840,18 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "tachyonfx"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7bb70be127291790236fd45169b17a3be4aeb1902c8691f23fd02f49d174b7b"
+dependencies = [
+ "bon",
+ "colorsys",
+ "ratatui",
+ "simple-easing",
+]
+
 [[package]]
 name = "tempfile"
 version = "3.14.0"
@@ -1738,6 +2063,35 @@ version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "adb9e6ca4f869e1180728b7950e35922a7fc6397f7b641499e8f3ef06e50dc83"
 
+[[package]]
+name = "unicode-segmentation"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6ccf251212114b54433ec949fd6a7841275f9ada20dddd2f29e9ceea4501493"
+
+[[package]]
+name = "unicode-truncate"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b3644627a5af5fa321c95b9b235a72fd24cd29c648c2c379431e6628655627bf"
+dependencies = [
+ "itertools 0.13.0",
+ "unicode-segmentation",
+ "unicode-width 0.1.14",
+]
+
+[[package]]
+name = "unicode-width"
+version = "0.1.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7dd6e30e90baa6f72411720665d41d89b9a3d039dc45b8faea1ddd07f617f6af"
+
+[[package]]
+name = "unicode-width"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fc81956842c57dac11422a97c3b8195a1ff727f06e85c84ed2e8aa277c9a0fd"
+
 [[package]]
 name = "untrusted"
 version = "0.9.0"
@@ -1881,6 +2235,22 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
 [[package]]
 name = "winapi-util"
 version = "0.1.9"
@@ -1890,6 +2260,12 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
 [[package]]
 name = "windows-registry"
 version = "0.2.0"
@@ -2089,6 +2465,12 @@ version = "0.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e9df38ee2d2c3c5948ea468a8406ff0db0b29ae1ffde1bcf20ef305bcc95c51"
 
+[[package]]
+name = "yansi"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cfe53a6657fd280eaa890a3bc59152892ffa3e30101319d168b781ed6529b049"
+
 [[package]]
 name = "yoke"
 version = "0.7.5"
diff --git a/Cargo.toml b/Cargo.toml
index cd9136e..451c91e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,7 +21,7 @@ include = [
 
 [features]
 nvrs_cli = ["clap", "colored", "futures"]
-nvrs_tui = []
+nvrs_tui = ["ratatui", "crossterm", "anyhow", "tachyonfx"]
 default = ["aur", "github", "gitlab"]
 aur = []
 github = []
@@ -38,12 +38,16 @@ path = "src/tui.rs"
 required-features = ["nvrs_tui"]
 
 [dependencies]
+anyhow = { version = "1.0.94", optional = true }
 clap = { version = "4.5.22", features = ["derive", "color", "error-context", "help", "std", "usage"], default-features = false , optional = true }
 colored = { version = "2.1.0", optional = true }
+crossterm = { version = "0.28.1", features = ["events", "event-stream"], default-features = false, optional = true }
 futures = { version = "0.3.31", optional = true }
+ratatui = { version =  "0.29.0", optional = true }
 reqwest = { version = "0.12.9", features = ["__tls", "charset", "default-tls", "h2", "http2", "json"], default-features = false }
 serde = { version = "1.0.215", features = ["derive"], default-features = false }
 serde_json = "1.0.132"
+tachyonfx = { version = "0.9.3", optional = true }
 thiserror = "2.0.4"
 tokio = { version = "1.42.0", features = ["full"] }
 toml = { version = "0.8.19", features = ["parse", "display"], default-features = false }
diff --git a/src/tui.rs b/src/tui.rs
index 6c905a6..206e33b 100644
--- a/src/tui.rs
+++ b/src/tui.rs
@@ -1,3 +1,74 @@
-fn main() {
-    println!("nvrs TUI is not implemented yet.");
+use anyhow::Result;
+use crossterm::{event::{self, Event, KeyCode, KeyEvent, KeyEventKind}};
+use ratatui::{
+    layout::Alignment, style::Color, widgets::{Block, BorderType, Borders}, Frame
+};
+use tachyonfx::{fx, Duration as FxDuration, Effect, EffectRenderer, Shader};
+
+struct AppState {
+    is_running: bool,
+    effect: Effect,
+}
+
+impl AppState {
+    async fn new() -> Result<Self> {
+        Ok(Self { is_running: true, effect: fx::fade_to_fg(Color::White, FxDuration::from_millis(500)) })
+    }
+
+    fn draw(&mut self, frame: &mut Frame) {
+        let block = Block::default()
+            .title(" nvrs ").title_alignment(Alignment::Center)
+            .borders(Borders::ALL)
+            .border_type(BorderType::Rounded);
+
+        frame.render_widget(block, frame.area());
+
+        if self.effect.running() {
+            frame.render_effect(&mut self.effect, frame.area(), FxDuration::from_millis(100));
+        }
+    }
+
+    fn handle_events(&mut self) -> Result<()> {
+        match event::read()? {
+            Event::Key(key_event) if key_event.kind == KeyEventKind::Press => {
+                self.handle_key_event(key_event)
+            }
+            _ => {}
+        };
+        Ok(())
+    }
+
+    fn handle_key_event(&mut self, key_event: KeyEvent) {
+        match key_event.code {
+            KeyCode::Char('q') => self.exit(),
+            _ => {}
+        }
+    }
+
+    fn exit(&mut self) {
+        self.is_running = false;
+    }
+}
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    let mut app = AppState::new().await?;
+    let mut terminal = ratatui::init();
+
+    while app.is_running {
+        terminal.draw(|f| {
+            app.draw(f);
+        })?;
+
+        if app.effect.running() {
+            tokio::time::sleep(FxDuration::from_millis(100).into()).await;
+            continue;
+        }
+
+        app.handle_events()?;
+    }
+
+    ratatui::restore();
+
+    Ok(())
 }