Initial commit (unpacked platform)

2026-08-05 19:21:11 +07:00
commit ac5340195a
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+import { and, eq, inArray } from "drizzle-orm";
+import { schema, type Database } from "@app/database";
+import { loadLocalePreferences } from "./localeContext.js";
+
+/**
+ * Innehållsspråk (i18n-spec §11–14): svensk källtext är sanningen, publicerade
+ * översättningar är vyer. Upplösning: exakt tagg ("en-US") → primärt språk
+ * ("en") → svensk källa. Endast status=published serveras till användare.
+ */
+
+/** "en-US" -> ["en-US", "en"], "sv" -> ["sv"]. */
+export function languageCandidates(languageTag: string): string[] {
+  const primary = languageTag.split("-")[0] ?? languageTag;
+  return primary === languageTag ? [languageTag] : [languageTag, primary];
+}
+
+export async function userLanguageTag(db: Database, userId: string): Promise<string> {
+  const prefs = await loadLocalePreferences(db, userId);
+  return prefs.languageTag;
+}
+
+export interface ResolvedRecipeText {
+  language: string;
+  title: string;
+  description: string | null;
+  storageGuidance: string | null;
+  /** stepNumber -> { instruction, tip } */
+  steps: Map<number, { instruction: string; tip: string | null }>;
+}
+
+/**
+ * Hämtar publicerad receptöversättning för användarens språk, eller null om
+ * svensk källa ska användas. En DB-runda för texterna + en för stegen.
+ */
+export async function resolveRecipeTranslation(
+  db: Database,
+  recipeId: string,
+  languageTag: string,
+): Promise<ResolvedRecipeText | null> {
+  const candidates = languageCandidates(languageTag);
+  if (candidates.includes("sv")) return null;
+
+  const rows = await db
+    .select()
+    .from(schema.recipeTranslations)
+    .where(
+      and(
+        eq(schema.recipeTranslations.recipeId, recipeId),
+        inArray(schema.recipeTranslations.languageTag, candidates),
+        eq(schema.recipeTranslations.status, "published"),
+      ),
+    );
+  if (rows.length === 0) return null;
+  const best =
+    candidates.map((c) => rows.find((r) => r.languageTag === c)).find(Boolean) ?? rows[0]!;
+
+  const stepRows = await db
+    .select()
+    .from(schema.recipeStepTranslations)
+    .where(
+      and(
+        eq(schema.recipeStepTranslations.recipeId, recipeId),
+        eq(schema.recipeStepTranslations.languageTag, best.languageTag),
+      ),
+    );
+  return {
+    language: best.languageTag,
+    title: best.title,
+    description: best.description,
+    storageGuidance: best.storageGuidance,
+    steps: new Map(stepRows.map((s) => [s.stepNumber, { instruction: s.instruction, tip: s.tip }])),
+  };
+}
+
+/**
+ * Ingrediensnamn för användarens språk: Map ingredientId -> namn.
+ * Saknade id:n behåller svenskt namn (fallback sker hos anroparen).
+ */
+export async function resolveIngredientNames(
+  db: Database,
+  ingredientIds: string[],
+  languageTag: string,
+): Promise<Map<string, string>> {
+  const candidates = languageCandidates(languageTag);
+  if (candidates.includes("sv") || ingredientIds.length === 0) return new Map();
+  const rows = await db
+    .select({
+      ingredientId: schema.ingredientTranslations.ingredientId,
+      languageTag: schema.ingredientTranslations.languageTag,
+      name: schema.ingredientTranslations.name,
+    })
+    .from(schema.ingredientTranslations)
+    .where(
+      and(
+        inArray(schema.ingredientTranslations.ingredientId, ingredientIds),
+        inArray(schema.ingredientTranslations.languageTag, candidates),
+        eq(schema.ingredientTranslations.status, "published"),
+      ),
+    );
+  const out = new Map<string, string>();
+  for (const candidate of [...candidates].reverse()) {
+    for (const r of rows) if (r.languageTag === candidate) out.set(r.ingredientId, r.name);
+  }
+  return out;
+}