Add Doris Kitchen household recipe app

home/doris-kitchen/app/services/planner.py

@@ -0,0 +1,72 @@
+from __future__ import annotations
+
+from collections import Counter
+from typing import Any
+
+from app.services.repository import repo
+
+
+def _overlap(left: list[str], right: list[str]) -> list[str]:
+    return sorted(set(left) & set(right))
+
+
+class PlannerService:
+    def generate(self, *, week_start: str, anchors: list[str], target_meals: int) -> dict[str, Any]:
+        suggestions = [
+            item for item in repo.list_suggestions()
+            if item.get("status") in {"approved", "suggested", "saved"}
+        ]
+        chosen: list[dict[str, Any]] = []
+        used_ids: set[str] = set()
+        for item in sorted(suggestions, key=lambda entry: entry.get("score", 0), reverse=True):
+            haystack = " ".join([str(item.get("title") or ""), " ".join(item.get("ingredients") or []), " ".join(item.get("tags") or [])]).lower()
+            if anchors and not any(anchor.strip().lower() in haystack for anchor in anchors if anchor.strip()):
+                continue
+            chosen.append(item)
+            used_ids.add(str(item.get("id")))
+            if len(chosen) >= min(len(anchors), target_meals):
+                break
+        ingredient_counter: Counter[str] = Counter()
+        for item in chosen:
+            ingredient_counter.update(item.get("ingredients") or [])
+        ranked = sorted(
+            (item for item in suggestions if str(item.get("id")) not in used_ids),
+            key=lambda entry: (
+                len(_overlap(list(ingredient_counter), entry.get("ingredients") or [])),
+                entry.get("score", 0),
+            ),
+            reverse=True,
+        )
+        for item in ranked:
+            if len(chosen) >= target_meals:
+                break
+            chosen.append(item)
+            used_ids.add(str(item.get("id")))
+            ingredient_counter.update(item.get("ingredients") or [])
+        meals: list[dict[str, Any]] = []
+        shared = [name for name, count in ingredient_counter.items() if count >= 2]
+        for item in chosen[:target_meals]:
+            overlap = _overlap(shared, item.get("ingredients") or [])
+            note = "Reuses: " + ", ".join(overlap[:4]) if overlap else "Adds variety without blowing up the ingredient list."
+            meals.append(
+                {
+                    "suggestion_id": item.get("id"),
+                    "title": item.get("title"),
+                    "url": item.get("url"),
+                    "score": item.get("score"),
+                    "ingredients": item.get("ingredients") or [],
+                    "note": note,
+                }
+            )
+        return {
+            "week_start": week_start,
+            "anchors": anchors,
+            "target_meals": target_meals,
+            "shared_ingredients": shared[:12],
+            "meals": meals,
+            "summary": f"Built {len(meals)} meals with {len(shared[:12])} shared ingredient lanes.",
+        }
+
+
+planner = PlannerService()
+