commit b022153a6833ef38d17a6c0d36bbe3d24886f3c1
Author: Savanni D'Gerinel <savanni.dgerinel@agilebits.com>
Date:   Thu Feb 1 16:26:05 2024 -0500

    A GTK application that tests out several different ICU apis

diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..3550a30
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..2d5df85
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/target
+.direnv
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..9659f44
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,1803 @@
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..6518831
--- /dev/null
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+
+[dependencies]
+adw = { version = "0.4", package = "libadwaita", features = ["v1_2"] }
+gio = "0.18.3"
+gtk = { version = "0.6", package = "gtk4" }
+icu = { version = "1.4.0", features = ["experimental"] }
+icu_provider = "1.4.0"
+icu_locid = "1.4.0"
+libc = "0.2.150"
+chrono = "*"
+
+[build-dependencies]
+glib-build-tools = "0.16"
diff --git a/build.rs b/build.rs
new file mode 100644
index 0000000..e82d891
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,7 @@
+fn main() {
+    glib_build_tools::compile_resources(
+        "resources",
+        "resources/gresources.xml",
+        "com.luminescent-dreams.locale.gresource",
+    );
+}
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..0ad3949
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,172 @@
+{
+  "nodes": {
+    "cargo2nix": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs",
+        "rust-overlay": "rust-overlay"
+      },
+      "locked": {
+        "lastModified": 1699033427,
+        "narHash": "sha256-OVtd5IPbb4NvHibN+QvMrMxq7aZN5GFoINZSAXKjUdA=",
+        "owner": "cargo2nix",
+        "repo": "cargo2nix",
+        "rev": "c6f33051f412352f293e738cc8da6fd4c457080f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cargo2nix",
+        "repo": "cargo2nix",
+        "type": "github"
+      }
+    },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1696426674,
+        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1694529238,
+        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
+      "inputs": {
+        "systems": "systems_2"
+      },
+      "locked": {
+        "lastModified": 1694529238,
+        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1697382362,
+        "narHash": "sha256-PvFjWFmSYOF6TjNZ/WjOeqa+sgaWm+83Fz37vEuATHA=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "ad9a253a0d34f313707f9c25fb8c95c65b1c8882",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "release-23.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1699099776,
+        "narHash": "sha256-X09iKJ27mGsGambGfkKzqvw5esP1L/Rf8H3u3fCqIiU=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "85f1ba3e51676fa8cc604a3d863d729026a6b8eb",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "ref": "nixos-unstable",
+        "type": "indirect"
+      }
+    },
+    "root": {
+      "inputs": {
+        "cargo2nix": "cargo2nix",
+        "flake-utils": "flake-utils_2",
+        "nixpkgs": "nixpkgs_2"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "flake-utils": [
+          "cargo2nix",
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "cargo2nix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1697336027,
+        "narHash": "sha256-ctmmw7j4liyfSh63v9rdFZeIoNYCkCvgqvtEOB7KhX8=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "e494404d36a41247987eeb1bfc2f1ca903e97764",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..b4b9696
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,33 @@
+{
+  description = "POSIX locale testing";
+
+  inputs = {
+    nixpkgs.url = "nixpkgs/nixos-unstable";
+    cargo2nix.url = "github:cargo2nix/cargo2nix";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, cargo2nix, flake-utils, ... }:
+    flake-utils.lib.eachDefaultSystem (system:
+        let
+            pkgs = import nixpkgs { inherit system; };
+            c2n = import cargo2nix { inherit system; };
+        in {
+            devShells.default = pkgs.mkShell {
+                name = "locale-devshell";
+                buildInputs = [
+                    # c2n.cargo2nix
+                    pkgs.gtk4
+                    pkgs.gtkd
+                    pkgs.libadwaita
+                    pkgs.pkg-config
+                    pkgs.rustup
+                ];
+            };
+
+            packages.hello = nixpkgs.legacyPackages.x86_64-linux.hello;
+
+            packages.default = self.packages.x86_64-linux.hello;
+        });
+}
+
diff --git a/resources/gresources.xml b/resources/gresources.xml
new file mode 100644
index 0000000..1447b98
--- /dev/null
+++ b/resources/gresources.xml
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+</gresources>
diff --git a/rust-toolchain b/rust-toolchain
new file mode 100644
index 0000000..8142c30
--- /dev/null
+++ b/rust-toolchain
@@ -0,0 +1,2 @@
+[toolchain]
+channel = "1.73.0"
diff --git a/src/bin/gtk.rs b/src/bin/gtk.rs
new file mode 100644
index 0000000..40f2321
--- /dev/null
+++ b/src/bin/gtk.rs
@@ -0,0 +1,317 @@
+use chrono::{Datelike, Local, Timelike};
+use gtk::prelude::*;
+use icu::{
+    calendar::{
+        types::{IsoHour, IsoMinute, IsoSecond, NanoSecond, Time},
+        Date, DateTime,
+    },
+    datetime::{
+        options::length::{self, Bag},
+        DateTimeFormatter,
+    },
+    locid::locale,
+};
+use icu_locid::Locale;
+use icu_provider::DataLocale;
+use libc::{self, LC_MESSAGES, LC_TIME};
+use std::{
+    env,
+    ffi::{CStr, CString},
+    sync::{Arc, RwLock},
+    time::Instant,
+};
+
+fn get_langinfo(value: libc::nl_item) -> String {
+    unsafe {
+        let r = libc::nl_langinfo(value);
+        CStr::from_ptr(r).to_string_lossy().into_owned()
+    }
+}
+
+trait ProvidesLocale {
+    fn language(&self) -> String;
+    fn time(&self) -> String;
+    // fn date_time_fmt(&self) -> String;
+}
+
+struct Linux {}
+
+impl ProvidesLocale for Linux {
+    fn language(&self) -> String {
+        unsafe {
+            let locale_param = CString::new("").unwrap();
+            let lc_c = libc::setlocale(LC_MESSAGES, locale_param.as_ptr());
+            CStr::from_ptr(lc_c).to_string_lossy().into_owned()
+        }
+    }
+    fn time(&self) -> String {
+        unsafe {
+            let locale_param = CString::new("").unwrap();
+            let lc_c = libc::setlocale(LC_TIME, locale_param.as_ptr());
+            CStr::from_ptr(lc_c).to_string_lossy().into_owned()
+        }
+    }
+    /*
+    fn date_time_fmt(&self) -> String {
+        unsafe {
+            let r = libc::nl_langinfo(LC_TIME);
+            CStr::from_ptr(r).to_string_lossy().into_owned()
+        }
+    }
+    */
+}
+
+fn create_label(name: &str, value: &str) -> gtk::Widget {
+    let name = gtk::Label::builder()
+        .justify(gtk::Justification::Left)
+        .label(name)
+        .halign(gtk::Align::Start)
+        .build();
+    let value = gtk::Label::builder()
+        .justify(gtk::Justification::Left)
+        .label(value)
+        .halign(gtk::Align::Start)
+        .build();
+    let layout = gtk::Box::builder()
+        .orientation(gtk::Orientation::Horizontal)
+        .homogeneous(true)
+        .build();
+    layout.append(&name);
+    layout.append(&value);
+    layout.upcast::<gtk::Widget>()
+}
+
+fn render_data() -> gtk::Box {
+    let provider = Linux {};
+
+    let layout = gtk::Box::builder()
+        .halign(gtk::Align::Start)
+        .orientation(gtk::Orientation::Vertical)
+        .spacing(8)
+        .homogeneous(true)
+        .build();
+
+    layout.append(
+        &gtk::Label::builder()
+            .justify(gtk::Justification::Left)
+            .label(format!("{:?}", Instant::now()))
+            .build(),
+    );
+
+    layout.append(&create_label("Language", &provider.language()));
+    layout.append(&create_label("Time", &provider.time()));
+
+    /* let time_locale = provider.language().parse::<Locale>().unwrap();*/
+
+    let now = chrono::Utc::now();
+    let now: icu::calendar::DateTime<icu::calendar::Gregorian> = icu::calendar::DateTime::new(
+        Date::try_new_gregorian_date(now.year() as i32, now.month() as u8, now.day() as u8)
+            .unwrap(),
+        Time::new(
+            IsoHour::try_from(now.hour() as u8).unwrap(),
+            IsoMinute::try_from(now.minute() as u8).unwrap(),
+            IsoSecond::try_from(now.second() as u8).unwrap(),
+            NanoSecond::try_from(0 as u32).unwrap(),
+        ),
+    );
+
+    let locales = ["en-US", "eo", "de-DE", "fr-FR", "es-ES", "zh-CN", "ja-JA"];
+    let styles: Vec<(String, Locale, Bag)> = locales
+        .into_iter()
+        .map(|locale| {
+            let lc = locale.parse::<Locale>().unwrap();
+            vec![
+                (
+                    format!("{}, full date", locale),
+                    lc.clone(),
+                    length::Bag::from_date_style(length::Date::Full).into(),
+                ),
+                (
+                    format!("{},  long date", locale),
+                    lc.clone(),
+                    length::Bag::from_date_style(length::Date::Long).into(),
+                ),
+                (
+                    format!("{},  medium date", locale),
+                    lc.clone(),
+                    length::Bag::from_date_style(length::Date::Medium).into(),
+                ),
+                (
+                    format!("{},  short date", locale),
+                    lc.clone(),
+                    length::Bag::from_date_style(length::Date::Short).into(),
+                ),
+                (
+                    format!("{},  full time", locale),
+                    lc.clone(),
+                    length::Bag::from_time_style(length::Time::Full).into(),
+                ),
+                (
+                    format!("{},  long time", locale),
+                    lc.clone(),
+                    length::Bag::from_time_style(length::Time::Long).into(),
+                ),
+                (
+                    format!("{},  medium time", locale),
+                    lc.clone(),
+                    length::Bag::from_time_style(length::Time::Medium).into(),
+                ),
+                (
+                    format!("{},  short time", locale),
+                    lc.clone(),
+                    length::Bag::from_time_style(length::Time::Short).into(),
+                ),
+            ]
+        })
+        .flatten()
+        .collect();
+
+    for (descriptor, locale, bag) in styles {
+        let formatter = DateTimeFormatter::try_new(&DataLocale::from(locale), bag.into());
+
+        match formatter {
+            Ok(formatter) => layout.append(&create_label(
+                &descriptor,
+                &formatter.format_to_string(&now.to_any()).unwrap(),
+            )),
+            Err(formatter_err) => layout.append(&create_label(
+                &descriptor,
+                &format!("unhandled formatter: {:?}", formatter_err),
+            )),
+        }
+    }
+    /*
+    layout.append(&create_label(
+        "formatted date and time",
+        dt_fmt.format_to_string(DateTime::try_new_iso_datetime(2023, 10, 13, 3, 28, 0).unwrap()),
+    ))
+    */
+
+    /*
+    layout.append(&create_label(
+        "date and time format",
+        &provider.date_time_fmt(),
+    ));
+    */
+
+    layout.append(&create_label(
+        "codeset",
+        get_langinfo(libc::CODESET).as_ref(),
+    ));
+    layout.append(&create_label(
+        "d_t_fmt",
+        get_langinfo(libc::D_T_FMT).as_ref(),
+    ));
+    layout.append(&create_label("d_fmt", get_langinfo(libc::D_FMT).as_ref()));
+    layout.append(&create_label("t_fmt", get_langinfo(libc::T_FMT).as_ref()));
+    layout.append(&create_label("am_str", get_langinfo(libc::AM_STR).as_ref()));
+    layout.append(&create_label("pm_str", get_langinfo(libc::PM_STR).as_ref()));
+    layout.append(&create_label(
+        "t_fmt_ampm",
+        get_langinfo(libc::T_FMT_AMPM).as_ref(),
+    ));
+    layout.append(&create_label("era", get_langinfo(libc::ERA).as_ref()));
+    layout.append(&create_label(
+        "era_d_t_fmt",
+        get_langinfo(libc::ERA_D_T_FMT).as_ref(),
+    ));
+    layout.append(&create_label(
+        "era_d_fmt",
+        get_langinfo(libc::ERA_D_FMT).as_ref(),
+    ));
+    layout.append(&create_label(
+        "era_t_fmt",
+        get_langinfo(libc::ERA_T_FMT).as_ref(),
+    ));
+    layout.append(&create_label("%c", &Local::now().format("%c").to_string()));
+    layout.append(&create_label("%x", &Local::now().format("%c").to_string()));
+    layout.append(&create_label("%X", &Local::now().format("%c").to_string()));
+    /*
+    layout.append(&create_label("day_1", get_langinfo(libc::DAY_1).as_ref()));
+    layout.append(&create_label(
+        "abday_1",
+        get_langinfo(libc::ABDAY_1).as_ref(),
+    ));
+    layout.append(&create_label("mon_1", get_langinfo(libc::MON_1).as_ref()));
+    layout.append(&create_label(
+        "abmon_1",
+        get_langinfo(libc::ABMON_1).as_ref(),
+    ));
+    layout.append(&create_label(
+        "radixchar",
+        get_langinfo(libc::RADIXCHAR).as_ref(),
+    ));
+    layout.append(&create_label(
+        "thousep",
+        get_langinfo(libc::THOUSEP).as_ref(),
+    ));
+    layout.append(&create_label(
+        "yesexpr",
+        get_langinfo(libc::YESEXPR).as_ref(),
+    ));
+    layout.append(&create_label("noexpr", get_langinfo(libc::NOEXPR).as_ref()));
+    layout.append(&create_label(
+        "crncystr",
+        get_langinfo(libc::CRNCYSTR).as_ref(),
+    ));
+    */
+
+    layout
+}
+
+fn main() {
+    gio::resources_register_include!("com.luminescent-dreams.locale.gresource")
+        .expect("failed to register resources");
+
+    let app = gtk::Application::builder()
+        .application_id("com.luminescent-dreams.locale")
+        .resource_base_path("/com/luminescent-dreams/dashboard")
+        .build();
+
+    app.connect_activate(move |app| {
+        let window = gtk::ApplicationWindow::new(app);
+
+        let layout = gtk::Box::builder()
+            .halign(gtk::Align::Start)
+            .orientation(gtk::Orientation::Vertical)
+            .spacing(8)
+            .build();
+
+        let menubar = gtk::Box::builder()
+            .halign(gtk::Align::End)
+            .orientation(gtk::Orientation::Horizontal)
+            .spacing(8)
+            .build();
+
+        let refresh_button = gtk::Button::builder().label("Refresh").build();
+        menubar.append(&refresh_button);
+
+        let data_layout = Arc::new(RwLock::new(render_data()));
+
+        layout.append(&menubar);
+        layout.append(&*data_layout.read().unwrap());
+
+        refresh_button.connect_clicked({
+            let layout = layout.clone();
+            let data_layout = data_layout.clone();
+            move |_| {
+                layout.remove(&*data_layout.read().unwrap());
+                let new_layout = render_data();
+                *data_layout.write().unwrap() = new_layout;
+                layout.append(&*data_layout.read().unwrap());
+            }
+        });
+
+        window.set_child(Some(&layout));
+
+        window.present();
+    });
+
+    let args: Vec<String> = env::args().collect();
+    ApplicationExtManual::run_with_args(&app, &args);
+}
+
+/*
+   println!("locale: {}", get_locale(libc::LC_ALL));
+
+*/