Parameterises translation

4 files changed, 32 insertions, 21 deletions

diff --git a/src/i18n/translate.ts b/src/i18n/translate.ts
index b407e3b..b911547 100644
--- a/src/i18n/translate.ts
+++ b/src/i18n/translate.ts
@@ -1,9 +1,20 @@
 import type Locale from '../types/Locale';
-import type { TranslationsDictionary } from '../types/TranslationsDictionary';
+import type { TranslationsDictionary, Translation } from '../types/TranslationsDictionary';
 import { defaultLocale } from './locales';
 
+type TranslationsDictionaryWith<Key extends string, Params> = TranslationsDictionary<{
+  [key in Key]: { [locale in typeof defaultLocale]: Translation<Params> } & {
+    [locale in Locale]?: Translation<Params>;
+  };
+}>;
+
 export default function (locale: Locale) {
-  return function <T extends string>(dict: TranslationsDictionary<T>, key: T) {
-    return dict[key][locale] ?? dict[key][defaultLocale];
+  return function <
+    Key extends string,
+    Params,
+    Dict extends TranslationsDictionaryWith<Key, Params>,
+  >(dict: Dict, params: { key: Key } & { [Param in keyof Params]: string }) {
+    const translation = dict[params.key][locale] ?? dict[params.key][defaultLocale];
+    return translation(params);
   };
 }
diff --git a/src/i18n/translations/pages/furthsettins.ts b/src/i18n/translations/pages/furthsettins.ts
index 41da32b..4b87311 100644
--- a/src/i18n/translations/pages/furthsettins.ts
+++ b/src/i18n/translations/pages/furthsettins.ts
@@ -2,10 +2,10 @@ import type { TranslationsDictionary } from '../../../types/TranslationsDictiona
 
 const furthsettinsTranslations = {
   title: {
-    sco: 'Furthsettins',
-    'en-GB': 'Publications',
+    sco: () => 'Furthsettins',
+    'en-GB': () => 'Publications',
   },
 };
 
-type Keys = keyof typeof furthsettinsTranslations;
-export default furthsettinsTranslations as TranslationsDictionary<Keys>;
+type Raw = typeof furthsettinsTranslations;
+export default furthsettinsTranslations as TranslationsDictionary<Raw>;
diff --git a/src/i18n/translations/pages/home.ts b/src/i18n/translations/pages/home.ts
index 0dff80d..dda30b8 100644
--- a/src/i18n/translations/pages/home.ts
+++ b/src/i18n/translations/pages/home.ts
@@ -2,10 +2,10 @@ import type { TranslationsDictionary } from '../../../types/TranslationsDictiona
 
 const homeTranslations = {
   title: {
-    sco: 'Hame',
-    'en-GB': 'Home',
+    sco: () => 'Hame',
+    'en-GB': () => 'Home',
   },
 };
 
-type Keys = keyof typeof homeTranslations;
-export default homeTranslations as TranslationsDictionary<Keys>;
+type Raw = typeof homeTranslations;
+export default homeTranslations as TranslationsDictionary<Raw>;
diff --git a/src/i18n/translations/site.ts b/src/i18n/translations/site.ts
index 89e9ed5..b414499 100644
--- a/src/i18n/translations/site.ts
+++ b/src/i18n/translations/site.ts
@@ -2,22 +2,22 @@ import type { TranslationsDictionary } from '../../types/TranslationsDictionary'
 
 const siteTranslations = {
   title: {
-    sco: 'Scots Leid Associe',
-    'en-GB': 'Scots Language Society',
+    sco: () => 'Scots Leid Associe',
+    'en-GB': () => 'Scots Language Society',
   },
   description: {
-    sco: 'The wabsteid o the Scots Leid Associe',
-    'en-GB': 'The website of the Scots Language Society',
+    sco: () => 'The wabsteid o the Scots Leid Associe',
+    'en-GB': () => 'The website of the Scots Language Society',
   },
   lallans: {
-    sco: 'Lallans',
-    'en-GB': 'Lallans',
+    sco: () => 'Lallans',
+    'en-GB': () => 'Lallans',
   },
   by: {
-    sco: 'bi',
-    'en-GB': 'by',
+    sco: () => 'bi',
+    'en-GB': () => 'by',
   },
 };
 
-type Keys = keyof typeof siteTranslations;
-export default siteTranslations as TranslationsDictionary<Keys>;
+type Raw = typeof siteTranslations;
+export default siteTranslations as TranslationsDictionary<Raw>;