공통 i18n 레이어 추가

common/core/auth/.gitkeep

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+

common/core/i18n/index.ts

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+export { createTomlTranslator } from "./loader";
+export {
+  DEFAULT_LOCALE,
+  LOCALE_STORAGE_KEY,
+  SUPPORTED_LOCALES,
+  type Locale,
+  type TomlObject,
+  type TomlValue,
+  type TranslatorInput,
+  type TranslatorOptions,
+} from "./types";

common/core/i18n/loader.ts

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+import {
+  DEFAULT_LOCALE,
+  LOCALE_STORAGE_KEY,
+  SUPPORTED_LOCALES,
+  type Locale,
+  type TomlObject,
+  type TomlValue,
+  type TranslatorInput,
+  type TranslatorOptions,
+} from "./types";
+
+function mergeTomlObjects(base: TomlObject, override: TomlObject): TomlObject {
+  const result: TomlObject = { ...base };
+
+  for (const [key, value] of Object.entries(override)) {
+    const currentValue = result[key];
+    if (
+      typeof currentValue === "object" &&
+      currentValue !== null &&
+      typeof value === "object" &&
+      value !== null
+    ) {
+      result[key] = mergeTomlObjects(currentValue as TomlObject, value);
+      continue;
+    }
+    result[key] = value;
+  }
+
+  return result;
+}
+
+function isSupportedLocale(value: string): value is Locale {
+  return (SUPPORTED_LOCALES as readonly string[]).includes(value);
+}
+
+function parseToml(raw: string): TomlObject {
+  const lines = raw.split(/\r?\n/);
+  const root: TomlObject = {};
+  let currentPath: string[] = [];
+
+  for (const rawLine of lines) {
+    const line = rawLine.trim();
+    if (!line || line.startsWith("#")) {
+      continue;
+    }
+
+    if (line.startsWith("[") && line.endsWith("]")) {
+      const sectionName = line.slice(1, -1).trim();
+      currentPath = sectionName
+        ? sectionName
+            .split(".")
+            .map((part) => part.trim())
+            .filter(Boolean)
+        : [];
+      continue;
+    }
+
+    const eqIndex = line.indexOf("=");
+    if (eqIndex === -1) {
+      continue;
+    }
+
+    const key = line.slice(0, eqIndex).trim();
+    const valueRaw = line.slice(eqIndex + 1).trim();
+    if (!key) {
+      continue;
+    }
+
+    let value = valueRaw;
+    if (
+      (value.startsWith('"') && value.endsWith('"')) ||
+      (value.startsWith("'") && value.endsWith("'"))
+    ) {
+      value = value.slice(1, -1);
+    }
+
+    let cursor: TomlObject = root;
+    for (const section of currentPath) {
+      if (!cursor[section] || typeof cursor[section] === "string") {
+        cursor[section] = {};
+      }
+      cursor = cursor[section] as TomlObject;
+    }
+
+    cursor[key] = value;
+  }
+
+  return root;
+}
+
+function getValue(target: TomlObject, key: string): string | undefined {
+  const parts = key.split(".");
+  let cursor: TomlValue = target;
+  for (const part of parts) {
+    if (typeof cursor !== "object" || cursor === null) {
+      return undefined;
+    }
+    cursor = (cursor as TomlObject)[part];
+    if (cursor === undefined) {
+      return undefined;
+    }
+  }
+  return typeof cursor === "string" ? cursor : undefined;
+}
+
+function detectLocale(): Locale {
+  if (typeof window === "undefined") {
+    return DEFAULT_LOCALE;
+  }
+
+  const stored = window.localStorage.getItem(LOCALE_STORAGE_KEY);
+  if (stored && isSupportedLocale(stored)) {
+    return stored;
+  }
+
+  const pathLocale = window.location.pathname.split("/")[1];
+  if (pathLocale && isSupportedLocale(pathLocale)) {
+    return pathLocale;
+  }
+
+  const browserLang = window.navigator.language.toLowerCase();
+  if (browserLang.startsWith("ko")) {
+    return "ko";
+  }
+
+  return DEFAULT_LOCALE;
+}
+
+function formatTemplate(
+  template: string,
+  vars?: Record<string, string | number>,
+  options?: TranslatorOptions,
+): string {
+  const normalizedTemplate = options?.normalizeEscapedNewlines
+    ? template.replace(/\\n/g, "\n")
+    : template;
+
+  if (!vars) {
+    return normalizedTemplate;
+  }
+
+  return normalizedTemplate.replace(/\{\{\s*(\w+)\s*\}\}/g, (match, key) => {
+    const value = vars[key];
+    if (value === undefined || value === null) {
+      return match;
+    }
+    return String(value);
+  });
+}
+
+export function createTomlTranslator(
+  input: TranslatorInput,
+  options?: TranslatorOptions,
+) {
+  const translations: Record<Locale, TomlObject> = {
+    ko: input.ko
+      .map((raw) => parseToml(raw))
+      .reduce<TomlObject>((merged, current) => mergeTomlObjects(merged, current), {}),
+    en: input.en
+      .map((raw) => parseToml(raw))
+      .reduce<TomlObject>((merged, current) => mergeTomlObjects(merged, current), {}),
+  };
+
+  return function t(
+    key: string,
+    fallback?: string,
+    vars?: Record<string, string | number>,
+  ): string {
+    const locale = detectLocale();
+    const value = getValue(translations[locale], key);
+    if (value && value.length > 0) {
+      return formatTemplate(value, vars, options);
+    }
+    return formatTemplate(fallback ?? key, vars, options);
+  };
+}

common/core/i18n/types.ts

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+export const LOCALE_STORAGE_KEY = "locale";
+export const DEFAULT_LOCALE = "ko";
+export const SUPPORTED_LOCALES = ["ko", "en"] as const;
+
+export type Locale = (typeof SUPPORTED_LOCALES)[number];
+
+export type TomlValue = string | TomlObject;
+
+export interface TomlObject {
+  [key: string]: TomlValue;
+}
+
+export interface TranslatorOptions {
+  normalizeEscapedNewlines?: boolean;
+}
+
+export interface TranslatorInput {
+  en: string[];
+  ko: string[];
+}

common/core/query/.gitkeep

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+

common/core/session/.gitkeep

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+

common/core/utils/.gitkeep

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+