From 260f816c83286e1b415c6104864581cec1e30bfa Mon Sep 17 00:00:00 2001
From: "Sven (AAMOS AI)" <sven@wavult.com>
Date: Mon, 17 Aug 2026 20:37:47 +0700
Subject: [PATCH] =?UTF-8?q?feat(recommendations):=20MIKRO=20MEAL-1=20m?=
 =?UTF-8?q?=C3=A5ltids-l=C3=A4mplighet=20i=20rankningen=20(nedvikta=20fruk?=
 =?UTF-8?q?ost/dessert=20vid=20huvudm=C3=A5ltid)?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 apps/api/src/routes/recommendations.ts        | 1 +
 packages/recommendation-engine/src/scoring.ts | 6 ++++++
 packages/recommendation-engine/src/types.ts   | 6 ++++++
 3 files changed, 13 insertions(+)

diff --git a/apps/api/src/routes/recommendations.ts b/apps/api/src/routes/recommendations.ts
index dd7165d..d7b77ed 100644
--- a/apps/api/src/routes/recommendations.ts
+++ b/apps/api/src/routes/recommendations.ts
@@ -383,6 +383,7 @@ export async function recommendationRoutes(app: FastifyInstance) {
         ratingCount: recipe.ratingCount,
         peakSeasons: recipe.peakSeasons,
         holidayTags: recipe.holidayTags,
+        mealTypes: recipe.mealTypes,
         spiceLevel: recipe.spiceLevel,
         coverage,
         daysSinceLastCooked: lastDate
diff --git a/packages/recommendation-engine/src/scoring.ts b/packages/recommendation-engine/src/scoring.ts
index 13a3e99..377d402 100644
--- a/packages/recommendation-engine/src/scoring.ts
+++ b/packages/recommendation-engine/src/scoring.ts
@@ -108,6 +108,12 @@ export function scoreCandidate(
     parts.cookingAssumptionFit = 0;
   }
 
+  // 16. Måltids-lämplighet: nedvikta lätta övergångsrätter (frukost/dessert) vid huvudmåltid.
+  const mainMeal = ctx.mealType === "dinner" || ctx.mealType === "lunch";
+  const crossover =
+    (candidate.mealTypes ?? []).includes("breakfast") || (candidate.mealTypes ?? []).includes("dessert");
+  parts.mealFit = mainMeal && crossover ? 0.15 : 1;
+
   const score = weightedSum(parts, weights);
 
   return {
diff --git a/packages/recommendation-engine/src/types.ts b/packages/recommendation-engine/src/types.ts
index 766b290..2fa629e 100644
--- a/packages/recommendation-engine/src/types.ts
+++ b/packages/recommendation-engine/src/types.ts
@@ -37,6 +37,7 @@ export interface RecommendationCandidate {
   ratingCount: number;
   peakSeasons: Season[];
   holidayTags: string[];
+  mealTypes?: MealType[];
   spiceLevel: number;
   coverage: CoverageResult;
   /** Dagar sedan hushållet senast lagade receptet (null = aldrig). */
@@ -104,6 +105,7 @@ export interface ScoringWeights {
   variety: number;
   weather: number;
   craving: number;
+  mealFit: number;
   /** Nya S1-vikter; 0 om personalisering är av. */
   memoryFit: number;
   tasteFit: number;
@@ -123,6 +125,7 @@ export const DEFAULT_WEIGHTS: ScoringWeights = {
   variety: 6,
   weather: 3,
   craving: 15,
+  mealFit: 12,
   memoryFit: 6,
   tasteFit: 6,
   cookingAssumptionFit: 4,
@@ -155,6 +158,7 @@ export const TASTE_VIEW_WEIGHTS: ScoringWeights = {
   variety: 3,
   weather: 1,
   craving: 25,
+  mealFit: 12,
   memoryFit: 12,
   tasteFit: 12,
   cookingAssumptionFit: 6,
@@ -174,6 +178,7 @@ export const HEALTH_VIEW_WEIGHTS: ScoringWeights = {
   variety: 4,
   weather: 2,
   craving: 5,
+  mealFit: 12,
   memoryFit: 3,
   tasteFit: 3,
   cookingAssumptionFit: 4,
@@ -193,6 +198,7 @@ export const PANTRY_VIEW_WEIGHTS: ScoringWeights = {
   variety: 2,
   weather: 1,
   craving: 5,
+  mealFit: 12,
   memoryFit: 4,
   tasteFit: 4,
   cookingAssumptionFit: 8,