Init

backend/app/services/menu.py

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+import json
+import random
+from datetime import datetime
+from pathlib import Path
+from typing import Dict, List
+
+DATA_DIR = Path(__file__).resolve().parent.parent / "data"
+ITEMS_PER_SECTION = 3
+
+
+def _load_json(filename: str) -> Dict:
+    path = DATA_DIR / filename
+    with open(path, encoding="utf-8") as file:
+        return json.load(file)
+
+
+MENU_SOURCE = _load_json("menu_items.json")
+
+
+def _pick_items(options: List[str], count: int) -> List[str]:
+    if count >= len(options):
+        return list(options)
+    return random.sample(options, count)
+
+
+def _pick_mains(count: int = ITEMS_PER_SECTION) -> List[str]:
+    fish_options = MENU_SOURCE["mains"]["fish"]
+    other_options = MENU_SOURCE["mains"]["others"]
+
+    fish_choice = random.choice(fish_options)
+    remaining_needed = max(count - 1, 0)
+
+    pool = [item for item in fish_options if item != fish_choice] + other_options
+    if remaining_needed > len(pool):
+        remaining_needed = len(pool)
+
+    mains = [fish_choice] + _pick_items(pool, remaining_needed)
+    random.shuffle(mains)
+    return mains
+
+def _pick_garnish() -> List[str]:
+    garnish_options = MENU_SOURCE["mains"]["garnish"]
+
+    return _pick_items(garnish_options, 2)
+
+
+def _build_alternative() -> Dict:
+    alternative = MENU_SOURCE.get("alternatives", {})
+    return {
+        "title": alternative.get("title", "Alternativa"),
+        "items": alternative.get("items", []),
+        "price": alternative.get("price"),
+        "note": alternative.get("note", ""),
+    }
+
+def build_menu(items_per_section: int = ITEMS_PER_SECTION) -> Dict:
+    today = datetime.now()
+
+    return {
+        "day": today.strftime("%A").capitalize(),
+        "starters": _pick_items(MENU_SOURCE["starters"], items_per_section),
+        "mains": _pick_mains(items_per_section),
+        "garnish": _pick_garnish(),
+        "desserts": _pick_items(MENU_SOURCE["desserts"], items_per_section),
+        "notes": _pick_items(MENU_SOURCE["notes"], 3),
+        "menu_price": MENU_SOURCE["university_deal"]["current_price"],
+        "university_deal": MENU_SOURCE["university_deal"],
+        "espetos_tip": random.choice(MENU_SOURCE["espetos_tips"]),
+        "alternative": _build_alternative(),
+        "availability": {
+            "last_updated": today.isoformat(timespec="seconds"),
+        },
+    }