Set up code and message generation for the Kifu localization strings

Cargo.lock

@@ -2697,6 +2697,8 @@ dependencies = [
  "async-channel 2.1.1",
  "async-std",
  "cairo-rs",
+ "fluent",
+ "fluent-ergonomics",
  "gio",
  "glib",
  "glib-build-tools 0.17.10",

kifu/gtk/Cargo.toml

@@ -13,6 +13,8 @@ adw             = { version = "0.5", package = "libadwaita", features = [ "v1_2"
 async-channel   = { version = "2" }
 async-std       = { version = "1" }
 cairo-rs        = { version = "0.18" }
+fluent          = { version = "0.16" }
+fluent-ergonomics = { path = "../../fluent-ergonomics" }
 gio             = { version = "0.18" }
 glib            = { version = "0.18" }
 gtk             = { version = "0.7", package = "gtk4", features = [ "v4_8" ] }
@@ -25,13 +27,3 @@ tokio           = { version = "1.26", features = [ "full" ] }
 
 [build-dependencies]
 glib-build-tools = "0.17"
-
-# [[bin]]
-# name = "kifu-gtk"
-# path = "src/main.rs"
-
-# [[bin]]
-# name = "screenplay"
-# path = "src/bin/screenplay.rs"
-# required-features = [ "screenplay" ]
-

kifu/gtk/build.rs

@@ -4,11 +4,4 @@ fn main() {
         "gresources.xml",
         "com.luminescent-dreams.kifu-gtk.gresource",
     );
-
-    let messages = std::process::Command::new("codegen-rust")
-        .arg("messages/en.yaml")
-        .output()
-        .expect("Failed to execute command");
-
-    println!("{}", String::from_utf8(messages.stdout).unwrap());
 }

kifu/gtk/messages/en.yaml

@@ -1,9 +1,14 @@
+nothing-here:
+  content: "Nothing Here"
+
 welcome:
   content: "Welcome to Kifu"
+
 hello:
   parameters:
     name: string
   content: "Hello, ${name}"
+
 games-in-database:
   parameters:
     count: count

kifu/gtk/resources/en-US.ftl

@@ -1,5 +1,8 @@
-welcome = Welcome
-games-in-database = {count ->
-    [one] There is one game in the database
-    [other] There are {count} games in the database
+nothing-here = Nothing Here
+hello = Hello, ${name}
+games-in-database = {$count ->
+  [one] There is one game in the database
+  *[other] There are ${count} games in the database
 }
+
+welcome = Welcome to Kifu

kifu/gtk/resources/eo.ftl

@@ -1,3 +1,5 @@
+nothing-here = Nenio estas ĉi tie
+hello = Saluton, ${name}
 welcome = Bonvenon
 games-in-database = {count ->
     [one] Estas unu ludon en la datumbazo.

kifu/gtk/src/messages.rs

@@ -1,26 +1,43 @@
-use l10n::{FluentArgs, FluentValue, Message};
+// This file was autogenerated from l10n-codegen-rust. Edits will be lost
+// on next generation.
+use l10n::Message;
+use fluent_ergonomics::FluentErgo;
+use fluent::FluentArgs;
 
-enum Phrase {
-    Welcome,
-    GamesInDatabase(i32),
+pub struct Hello {
+    name: String,
 }
 
-impl Message for Phrase {
-    fn msgid(&self) -> &str {
-        match self {
-            Phrase::Welcome => "welcome",
-            Phrase::GamesInDatabase(_) => "games-in-database",
-        }
-    }
-
-    fn args(&self) -> Option<FluentArgs> {
-        match self {
-            Phrase::Welcome => None,
-            Phrase::GamesInDatabase(val) => {
-                let mut args = FluentArgs::new();
-                args.set("count", FluentValue::from(val));
-                Some(args)
-            }
-        }
+impl Message for Hello {
+    fn localize(&self, bundle: &FluentErgo) -> String {
+        let mut args = FluentArgs::new();
+        args.set("name", self.name.clone());
+        bundle.tr("hello", Some(&args)).unwrap()
+    }
+}
+
+pub struct NothingHere; 
+impl Message for NothingHere {
+    fn localize(&self, bundle: &FluentErgo) -> String {
+        bundle.tr("nothing-here", None).unwrap()
+    }
+}
+
+pub struct Welcome; 
+impl Message for Welcome {
+    fn localize(&self, bundle: &FluentErgo) -> String {
+        bundle.tr("welcome", None).unwrap()
+    }
+}
+
+pub struct GamesInDatabase {
+    count: usize,
+}
+
+impl Message for GamesInDatabase {
+    fn localize(&self, bundle: &FluentErgo) -> String {
+        let mut args = FluentArgs::new();
+        args.set("count", self.count.clone());
+        bundle.tr("games-in-database", Some(&args)).unwrap()
     }
 }

kifu/gtk/src/ui/mod.rs

@@ -2,6 +2,9 @@ use adw::prelude::*;
 use gio::resources_lookup_data;
 use glib::IsA;
 use gtk::STYLE_PROVIDER_PRIORITY_USER;
+use l10n::L10N;
+use std::path::PathBuf;
+use crate::messages;
 
 mod chat;
 pub use chat::Chat;
@@ -75,8 +78,9 @@ impl AppWindow {
         header.pack_end(&hamburger);
 
         let content = adw::Bin::builder().css_classes(vec!["content"]).build();
+        let l10n = L10N::new(PathBuf::from("resources"));
         content.set_child(Some(
-            &adw::StatusPage::builder().title("Nothing here").build(),
+            &adw::StatusPage::builder().title(l10n.tr(messages::NothingHere)).build(),
         ));
 
         let layout = gtk::Box::builder()

l10n/src/bin/codegen-rust.rs

@@ -77,39 +77,53 @@ impl Message {
 
     fn rust_code(&self) -> String {
         if self.parameters.is_empty() {
-            format!(r"pub struct {}; ", self.name.to_case(Case::Pascal))
+            let mut struct_strs = vec![];
+
+            struct_strs.push(format!("pub struct {}; ", self.name.to_case(Case::Pascal)));
+            struct_strs.push(format!("impl Message for {} {{
+    fn localize(&self, bundle: &FluentErgo) -> String {{
+        bundle.tr(\"{}\", None).unwrap()
+    }}
+}}",
+                self.name.to_case(Case::Pascal),
+                self.name,
+            ));
+
+            struct_strs.join("\n")
         } else {
             let mut struct_strs = vec![];
 
-            struct_strs.push(format!("pub struct {} {{", self.name.to_case(Case::Pascal)));
-            let mut parameters: Vec<String> = self
+            let parameters: String = self
                 .parameters
                 .iter()
                 .map(|param| format!("    {}: {},", param.name, param.ty))
-                .collect();
+                .collect::<Vec<String>>().join("\n");
+
+            struct_strs.push(format!("pub struct {} {{
+{}
+}}", self.name.to_case(Case::Pascal),
+                parameters));
 
-            struct_strs.append(&mut parameters);
-            struct_strs.push("}".to_owned());
             struct_strs.push("".to_owned());
 
-            struct_strs.push(format!(
-                "impl Message for {} {{",
-                self.name.to_case(Case::Pascal)
-            ));
-            struct_strs.push(format!("    pub fn localize(&self, bundle: &FluentBundle) -> String {{"));
-            struct_strs.push("        let mut args = FluentArgs::new();".to_owned());
-            let mut parameters: Vec<String> = self
+            let parameters: String = self
                 .parameters
                 .iter()
-                .map(|param| format!("        args.set(\"{}\", self.{})", param.name, param.name))
-                .collect();
-            struct_strs.append(&mut parameters);
-            struct_strs.push("".to_owned());
-            struct_strs.push(format!("        let msg = bundle.get_message(\"{}\").unwrap();", self.name));
-            struct_strs.push(format!("        let mut errors = vec![]"));
-            struct_strs.push(format!("        msg.format_pattern(&msg.value().unwrap(), args, &mut errors)"));
-            struct_strs.push("    }".to_owned());
-            struct_strs.push("}".to_owned());
+                .map(|param| format!("        args.set(\"{}\", self.{}.clone());", param.name, param.name))
+                .collect::<Vec<String>>().join("\n");
+
+            struct_strs.push(format!(
+                "impl Message for {} {{
+    fn localize(&self, bundle: &FluentErgo) -> String {{
+        let mut args = FluentArgs::new();
+{}
+        bundle.tr(\"{}\", Some(&args)).unwrap()
+    }}
+}}",
+                self.name.to_case(Case::Pascal),
+                parameters,
+                self.name,
+            ));
 
             struct_strs.join("\n")
         }
@@ -127,6 +141,12 @@ fn main() {
     let messages: HashMap<String, MessageJS> =
         serde_yaml::from_reader(File::open(input_file).unwrap()).unwrap();
 
+    println!("// This file was autogenerated from l10n-codegen-rust. Edits will be lost
+// on next generation.");
+    println!("use l10n::Message;");
+    println!("use fluent_ergonomics::FluentErgo;");
+    println!("use fluent::FluentArgs;");
+
     let messages = messages
         .into_iter()
         .map(|(name, msg)| Message::from_js(name, msg));

l10n/src/bin/msggen.rs

@@ -1,3 +1,21 @@
-fn main() {
-    println!("msggen running");
+use std::{collections::HashMap, fs::File, env};
+use serde::Deserialize;
+use serde_yaml;
+
+#[derive(Debug, Clone, Deserialize)]
+struct MessageJS {
+    #[serde(default)]
+    content: String,
+}
+
+fn main() {
+    let mut args = env::args();
+    let _ = args.next();
+    let input_file = args.next().unwrap();
+    let messages: HashMap<String, MessageJS> =
+        serde_yaml::from_reader(File::open(input_file).unwrap()).unwrap();
+
+    for (name, message) in messages {
+        println!("{} = {}", name, message.content);
+    }
 }

l10n/src/lib.rs

@@ -68,20 +68,19 @@ impl From<icu::locid::Error> for L10NError {
 // However, I have not found a mechanism in Fluent to identify all of the placeholders within a
 // message, so I'm not even sure that I can automate this code generation.
 pub trait Message {
-    fn msgid(&self) -> &str;
-    fn args(&self) -> Option<FluentArgs>;
+    fn localize(&self, bundle: &FluentErgo) -> String;
 }
 
 pub struct L10N {
     messages_root: std::path::PathBuf,
-    messages: FluentErgo,
+    message_bundle: FluentErgo,
 
     locales: NonEmptyList<Locale>,
     zone: chrono_tz::Tz,
 }
 
 impl L10N {
-    fn new(messages_root: std::path::PathBuf) -> Self {
+    pub fn new(messages_root: std::path::PathBuf) -> Self {
         let english = "en-US".parse::<Locale>().unwrap();
         let sys_locale = get_locale()
             .and_then(|locale_str| locale_str.parse::<Locale>().ok())
@@ -95,7 +94,7 @@ impl L10N {
         let english_phrases = FluentResource::try_new
         */
 
-        let messages = {
+        let message_bundle = {
             let mut english_messages = messages_root.clone();
             english_messages.push("en-US.ftl");
 
@@ -108,7 +107,7 @@ impl L10N {
 
         Self {
             messages_root,
-            messages,
+            message_bundle,
             locales,
             zone,
         }
@@ -158,7 +157,11 @@ impl L10N {
     // at compile time, as are their parameters. That implies an enumeration, with one element per
     // message, and with each element knowing its parameters.
     pub fn messages(&self) -> FluentErgo {
-        self.messages.clone()
+        self.message_bundle.clone()
+    }
+
+    pub fn tr(&self, message: impl Message) -> String {
+        message.localize(&self.message_bundle)
     }
 
     pub fn format_date_time_utc(