perf: suppression des $queryRaw redondants et cache sur getTemplates

- getEvaluation/getTemplates: retire les $queryRaw qui dupliquaient les
  données déjà chargées via Prisma include (2 requêtes DB → 1)
- getTemplates: wrappé avec cache() React pour dédupliquer les appels
  dans le même render tree
- Supprime l'import Prisma devenu inutile

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

prisma/migrations/20260225122717_add_performance_indexes/migration.sql

@@ -0,0 +1,11 @@
+-- CreateIndex
+CREATE INDEX "AuditLog_evaluationId_idx" ON "AuditLog"("evaluationId");
+
+-- CreateIndex
+CREATE INDEX "Evaluation_evaluatorId_idx" ON "Evaluation"("evaluatorId");
+
+-- CreateIndex
+CREATE INDEX "Evaluation_templateId_idx" ON "Evaluation"("templateId");
+
+-- CreateIndex
+CREATE INDEX "EvaluationShare_userId_idx" ON "EvaluationShare"("userId");

prisma/schema.prisma

@@ -66,6 +66,9 @@ model Evaluation {
   isPublic        Boolean  @default(false) // visible par tous (ex. démo)
   createdAt       DateTime @default(now())
   updatedAt       DateTime @updatedAt
+
+  @@index([evaluatorId])
+  @@index([templateId])
 }
 
 model EvaluationShare {
@@ -77,6 +80,7 @@ model EvaluationShare {
   createdAt    DateTime   @default(now())
 
   @@unique([evaluationId, userId])
+  @@index([userId])
 }
 
 model DimensionScore {
@@ -106,4 +110,6 @@ model AuditLog {
   newValue     String?
   userId       String?
   createdAt    DateTime @default(now())
+
+  @@index([evaluationId])
 }

src/actions/evaluations.ts

@@ -72,11 +72,12 @@ export async function createEvaluation(data: {
       },
     });
 
-    for (const dim of template.dimensions) {
-      await prisma.dimensionScore.create({
-        data: { evaluationId: evaluation.id, dimensionId: dim.id },
-      });
-    }
+    await prisma.dimensionScore.createMany({
+      data: template.dimensions.map((dim) => ({
+        evaluationId: evaluation.id,
+        dimensionId: dim.id,
+      })),
+    });
 
     revalidatePath("/dashboard");
     return { success: true, data: { id: evaluation.id } };
@@ -177,30 +178,33 @@ export async function updateEvaluation(id: string, data: UpdateEvaluationInput):
     }
 
     if (dimensionScores && Array.isArray(dimensionScores)) {
-      for (const ds of dimensionScores) {
-        if (ds.dimensionId) {
-          await prisma.dimensionScore.upsert({
-            where: {
-              evaluationId_dimensionId: { evaluationId: id, dimensionId: ds.dimensionId },
-            },
-            update: {
-              score: ds.score,
-              justification: ds.justification,
-              examplesObserved: ds.examplesObserved,
-              confidence: ds.confidence,
-              candidateNotes: ds.candidateNotes,
-            },
-            create: {
-              evaluationId: id,
-              dimensionId: ds.dimensionId,
-              score: ds.score,
-              justification: ds.justification,
-              examplesObserved: ds.examplesObserved,
-              confidence: ds.confidence,
-              candidateNotes: ds.candidateNotes,
-            },
-          });
-        }
+      const validScores = dimensionScores.filter((ds) => ds.dimensionId);
+      if (validScores.length > 0) {
+        await prisma.$transaction(
+          validScores.map((ds) =>
+            prisma.dimensionScore.upsert({
+              where: {
+                evaluationId_dimensionId: { evaluationId: id, dimensionId: ds.dimensionId },
+              },
+              update: {
+                score: ds.score,
+                justification: ds.justification,
+                examplesObserved: ds.examplesObserved,
+                confidence: ds.confidence,
+                candidateNotes: ds.candidateNotes,
+              },
+              create: {
+                evaluationId: id,
+                dimensionId: ds.dimensionId,
+                score: ds.score,
+                justification: ds.justification,
+                examplesObserved: ds.examplesObserved,
+                confidence: ds.confidence,
+                candidateNotes: ds.candidateNotes,
+              },
+            })
+          )
+        );
       }
     }
 

src/lib/server-data.ts

@@ -1,4 +1,4 @@
-import { Prisma } from "@prisma/client";
+import { cache } from "react";
 import { auth } from "@/auth";
 import { prisma } from "@/lib/db";
 import { canAccessEvaluation } from "@/lib/evaluation-access";
@@ -62,60 +62,20 @@ export async function getEvaluation(id: string) {
   );
   if (!hasAccess) return null;
 
-  const templateId = evaluation.templateId;
-  const dimsRaw = evaluation.template
-    ? ((await prisma.$queryRaw(
-        Prisma.sql`SELECT id, slug, title, rubric, "orderIndex", "suggestedQuestions" FROM "TemplateDimension" WHERE "templateId" = ${templateId} ORDER BY "orderIndex" ASC`
-      )) as { id: string; slug: string; title: string; rubric: string; orderIndex: number; suggestedQuestions: string | null }[])
-    : [];
-
-  const dimMap = new Map(dimsRaw.map((d) => [d.id, d]));
-
   return {
     ...evaluation,
     evaluationDate: evaluation.evaluationDate.toISOString(),
-    template: evaluation.template
-      ? {
-          ...evaluation.template,
-          dimensions: evaluation.template.dimensions.map((d) => {
-            const raw = dimMap.get(d.id);
-            return {
-              ...d,
-              suggestedQuestions: raw?.suggestedQuestions ?? d.suggestedQuestions,
-            };
-          }),
-        }
-      : null,
-    dimensionScores: evaluation.dimensionScores.map((ds) => ({
-      ...ds,
-      dimension: ds.dimension
-        ? {
-            ...ds.dimension,
-            suggestedQuestions: dimMap.get(ds.dimension.id)?.suggestedQuestions ?? ds.dimension.suggestedQuestions,
-          }
-        : null,
-    })),
   };
 }
 
-export async function getTemplates() {
+export const getTemplates = cache(async () => {
   const templates = await prisma.template.findMany({
     include: {
       dimensions: { orderBy: { orderIndex: "asc" } },
     },
   });
-  const dimsRaw = (await prisma.$queryRaw(
-    Prisma.sql`SELECT id, "templateId", slug, title, rubric, "orderIndex", "suggestedQuestions" FROM "TemplateDimension" ORDER BY "templateId", "orderIndex"`
-  )) as { id: string; templateId: string; slug: string; title: string; rubric: string; orderIndex: number; suggestedQuestions: string | null }[];
-  const dimMap = new Map(dimsRaw.map((d) => [d.id, d]));
-  return templates.map((t) => ({
-    ...t,
-    dimensions: t.dimensions.map((d) => ({
-      ...d,
-      suggestedQuestions: dimMap.get(d.id)?.suggestedQuestions ?? d.suggestedQuestions,
-    })),
-  }));
-}
+  return templates;
+});
 
 export async function getUsers() {
   const session = await auth();