feat: started implementation of translations

src/commands/about.ts

@@ -2,6 +2,7 @@ import {
   SlashCommandBuilder,
   SlashCommandSubcommandsOnlyBuilder,
 } from 'discord.js';
+import { translator } from '../core/localization/translator';
 import { COMMANDS_RAW, CommandRegistry } from '../events/interactionCreate';
 
 const RAW_PATH = `https://raw.githubusercontent.com/tresabhi/blitzkrieg/main/docs/`;
@@ -28,40 +29,46 @@ function addDocsSubcommands(option: SlashCommandSubcommandsOnlyBuilder) {
   return option;
 }
 
-export const aboutCommand: CommandRegistry = {
-  inProduction: true,
-  inPublic: true,
+export const aboutCommand = new Promise<CommandRegistry>(async (resolve) => {
+  resolve({
+    inProduction: true,
+    inPublic: true,
 
-  command: addDocsSubcommands(
-    new SlashCommandBuilder()
-      .setName('about')
-      .setDescription('All the info you need about the bot')
-      .addSubcommand((option) =>
-        option
-          .setName('commands')
-          .setDescription('List of all commands and their descriptions'),
-      ),
-  ),
+    command: addDocsSubcommands(
+      new SlashCommandBuilder()
+        .setName('about')
+        .setNameLocalizations({
+          // "es-ES":
+        })
+        .setDescription('All the info you need about the bot')
+        .addSubcommand((option) =>
+          option
+            .setName('commands')
+            .setDescription('List of all commands and their descriptions'),
+        ),
+    ),
 
-  async handler(interaction) {
-    const subcommand = interaction.options.getSubcommand();
+    async handler(interaction) {
+      const subcommand = interaction.options.getSubcommand();
+      const { t } = await translator(interaction.locale);
 
-    if (subcommand === 'commands') {
-      return `# Commands\n\nBlitzkrieg offers the following commands:\n\n${(
-        await Promise.all(COMMANDS_RAW)
-      )
-        .filter((registry) => registry.inPublic && registry.inProduction)
-        .sort((a, b) => (a.command.name < b.command.name ? -1 : 1))
-        .map(
-          (registry) =>
-            `- \`/${registry.command.name}\`: ${registry.command.description}`,
+      if (subcommand === 'commands') {
+        return t`bot.commands.about.subcommands.commands.body${(
+          await Promise.all(COMMANDS_RAW)
         )
-        .join('\n')}`;
-    }
+          .filter((registry) => registry.inPublic && registry.inProduction)
+          .sort((a, b) => (a.command.name < b.command.name ? -1 : 1))
+          .map(
+            (registry) =>
+              `- \`/${registry.command.name}\`: ${registry.command.description}`,
+          )
+          .join('\n')}`;
+      }
 
-    const url = `${RAW_PATH}${DOCS[subcommand as keyof typeof DOCS]}.md`;
-    const content = fetch(url).then((response) => response.text());
+      const url = `${RAW_PATH}${DOCS[subcommand as keyof typeof DOCS]}.md`;
+      const content = fetch(url).then((response) => response.text());
 
-    return content;
-  },
-};
+      return content;
+    },
+  });
+});

src/core/localization/strings.ts

@@ -1,6 +1,7 @@
-const LANGUAGES = ['en-US', 'es-ES', 'ja-JP'] as const;
+import { Locale } from 'discord.js';
+
+const LOCALES: Locale[number][] = ['en-US', 'es-ES'];
 
-export type Language = (typeof LANGUAGES)[number];
 export type TranslationFragmentTree = {
   [key: string]: TranslationFragment;
 } & {
@@ -8,10 +9,18 @@ export type TranslationFragmentTree = {
 };
 export type TranslationFragment = string | TranslationFragmentTree;
 
-export const translations = LANGUAGES.reduce(
-  (table, language) => ({
-    ...table,
-    [language]: import(`../../lang/${language}.json`),
-  }),
-  {},
-) as Record<Language, Promise<TranslationFragment>>;
+export const translations = Promise.all(
+  LOCALES.map(async (locale) => ({
+    locale,
+    translations: await import(`../../lang/${locale}.json`),
+  })),
+).then(
+  (translations) =>
+    translations.reduce(
+      (table, { locale, translations }) => ({
+        ...table,
+        [locale]: translations,
+      }),
+      {},
+    ) as Record<Locale[number], TranslationFragment>,
+);

src/core/localization/translator.ts

@@ -1,13 +1,14 @@
-import { Language, translations } from './strings';
+import { Locale } from 'discord.js';
+import { translations } from './strings';
 
-export async function translator(language: Language) {
-  const strings = await translations[language];
+export async function translator(locale: Locale) {
+  const strings = (await translations)[locale];
 
-  function translate(key: string) {
-    const path = key.split('.');
+  function translate(path: string) {
+    const pathArray = path.split('.');
     let fragment = strings;
 
-    for (const pathItem in path) {
+    for (const pathItem of pathArray) {
       if (typeof fragment === 'string') {
         throw new SyntaxError(
           `Attempted to access sub-string ("${pathItem}" in "${path}") from a string instead of a tree`,
@@ -17,7 +18,7 @@ export async function translator(language: Language) {
 
         if (typeof fragment === 'undefined') {
           throw new Error(
-            `Undefined translation for key "${key}" (in "${path}") in language "${language}"`,
+            `Undefined translation for key "${path}" (in "${path}") in language "${locale}"`,
           );
         }
       }
@@ -29,13 +30,19 @@ export async function translator(language: Language) {
       return fragment.$!;
     } else {
       throw new Error(
-        `Unresolved tree ending for path "${path}" in language "${language}"`,
+        `Unresolved tree ending for "${path}" in language "${locale}"`,
       );
     }
   }
 
-  function t(strings: TemplateStringsArray) {
-    return translate(strings[0]);
+  function t(paths: TemplateStringsArray, ...embeds: string[]) {
+    return paths
+      .map((path, index) =>
+        path.length === 0
+          ? ''
+          : `${translate(path)}${index === embeds.length ? '' : embeds[index]}`,
+      )
+      .join('');
   }
 
   return { translate, t };

src/lang/en-US.json

@@ -24,7 +24,7 @@
           "commands": {
             "$": "commands",
             "description": "List of all commands and their descriptions",
-            "body": "# Commands\n\nBlitzkrieg offers the following commands:"
+            "body": "# Commands\n\nBlitzkrieg offers the following commands:\n\n"
           },
           "embeds": {
             "$": "embeds",

src/lang/es-ES.json

@@ -23,7 +23,7 @@
           "commands": {
             "$": "comandos",
             "description": "Lista de todos los comandos y sus descripciones",
-            "body": "# Comandos\n\nBlitzkrieg ofrece los siguientes comandos:"
+            "body": "# Comandos\n\nBlitzkrieg ofrece los siguientes comandos:\n\n"
           },
           "embeds": {
             "$": "embeds",

src/lang/ja-JP.json

@@ -1,66 +0,0 @@
-{
-  "bot": {
-    "common": {
-      "wn8": {
-        "$": "WN8",
-        "very_bad": "Very bad",
-        "bad": "Bad",
-        "below_average": "Below average",
-        "average": "Average",
-        "above_average": "Above average",
-        "good": "Good",
-        "very_good": "Very good",
-        "great": "Great",
-        "unicum": "Unicum",
-        "super_unicum": "Super unicum"
-      }
-    },
-    "commands": {
-      "about": {
-        "$": "about",
-        "description": "All the info you need about the bot",
-        "subcommands": {
-          "commands": {
-            "$": "commands",
-            "description": "List of all commands and their descriptions",
-            "body": "# Commands\n\nBlitzkrieg offers the following commands:"
-          },
-          "embeds": {
-            "$": "embeds",
-            "description": "How embeds work"
-          },
-          "introduction": {
-            "$": "introduction",
-            "description": "About the bot"
-          },
-          "invite": {
-            "$": "invite",
-            "description": "How to invite the bot"
-          },
-          "timezones": {
-            "$": "timezones",
-            "description": "How Blitzkrieg infers and uses your timezone"
-          },
-          "creators": {
-            "$": "creators",
-            "description": "People who have worked on the bot"
-          }
-        }
-      },
-      "breakdown": {
-        "$": "breakdown",
-        "description": "A period's breakdown by tanks played",
-        "body": {
-          "total": "Total",
-          "battles": "Battles",
-          "winrate": "Winrate",
-          "damage": "Damage"
-        },
-        "buttons": {
-          "refresh": "Refresh"
-        }
-      }
-    }
-  },
-  "website": {}
-}