Initial commit: ExaMetra v1.0.0 — Free & open-source competence & grading platform

Features:
- 15+ views: Dashboard, Classes, Progress, Flower, Matrix, Assessments, Grading, Reports, Attendance, Calendar, Lesson Plans, Analytics, Parent Communication, Behavior Tracking, Settings
- 34+ API endpoints
- 30+ Prisma models
- 700+ i18n keys (German + English)
- Keyboard shortcuts (Cmd+K, Cmd+1-9, Cmd+/)
- Batch deletion, drag-and-drop seating, custom color palette
- Demo accounts (admin, teacher, student, parent)
- Dark mode, responsive design, print styles
- CSV/PDF export, notification system, onboarding tour
- Zero emojis — all replaced with Lucide icons
- MIT License

src/app/api/class-competency-assignments/route.ts

@@ -0,0 +1,153 @@
+import { NextResponse } from 'next/server';
+import { z } from 'zod';
+import { db } from '@/lib/db';
+import { getSession } from '@/lib/auth';
+
+const createAssignmentSchema = z.object({
+  classGroupId: z.string().min(1),
+  subjectId: z.string().min(1),
+  competencyTemplateId: z.string().min(1),
+  schoolYearId: z.string().min(1),
+  clonedTemplateId: z.string().optional(),
+});
+
+export async function GET(request: Request) {
+  try {
+    const session = await getSession();
+    if (!session) {
+      return NextResponse.json({ error: 'Not authenticated' }, { status: 401 });
+    }
+
+    const { searchParams } = new URL(request.url);
+    const classGroupId = searchParams.get('classGroupId');
+    const subjectId = searchParams.get('subjectId');
+    const schoolYearId = searchParams.get('schoolYearId');
+
+    const where: Record<string, unknown> = {};
+    if (classGroupId) where.classGroupId = classGroupId;
+    if (subjectId) where.subjectId = subjectId;
+    if (schoolYearId) where.schoolYearId = schoolYearId;
+
+    const assignments = await db.classCompetencyAssignment.findMany({
+      where,
+      include: {
+        classGroup: { select: { id: true, name: true, gradeLevel: true } },
+        subject: { select: { id: true, name: true } },
+        competencyTemplate: {
+          select: {
+            id: true,
+            name: true,
+            schoolType: true,
+            gradeLevelMin: true,
+            gradeLevelMax: true,
+          },
+        },
+      },
+    });
+
+    return NextResponse.json(assignments);
+  } catch (error) {
+    console.error('ClassCompetencyAssignments GET error:', error);
+    return NextResponse.json(
+      { error: 'Internal server error' },
+      { status: 500 }
+    );
+  }
+}
+
+export async function POST(request: Request) {
+  try {
+    const session = await getSession();
+    if (!session) {
+      return NextResponse.json({ error: 'Not authenticated' }, { status: 401 });
+    }
+
+    if (
+      session.user?.role !== 'SUPER_ADMIN' &&
+      session.user?.role !== 'SCHOOL_ADMIN' &&
+      session.user?.role !== 'TEACHER'
+    ) {
+      return NextResponse.json({ error: 'Forbidden' }, { status: 403 });
+    }
+
+    const body = await request.json();
+    const parsed = createAssignmentSchema.safeParse(body);
+    if (!parsed.success) {
+      return NextResponse.json(
+        { error: 'Validation failed', details: parsed.error.issues },
+        { status: 400 }
+      );
+    }
+
+    // Check uniqueness constraint (classGroupId + subjectId + schoolYearId)
+    const existing = await db.classCompetencyAssignment.findFirst({
+      where: {
+        classGroupId: parsed.data.classGroupId,
+        subjectId: parsed.data.subjectId,
+        schoolYearId: parsed.data.schoolYearId,
+      },
+    });
+
+    if (existing) {
+      return NextResponse.json(
+        { error: 'A competency template is already assigned for this class/subject/year combination' },
+        { status: 409 }
+      );
+    }
+
+    const assignment = await db.classCompetencyAssignment.create({
+      data: parsed.data,
+      include: {
+        classGroup: { select: { id: true, name: true } },
+        subject: { select: { id: true, name: true } },
+        competencyTemplate: {
+          select: { id: true, name: true },
+        },
+      },
+    });
+
+    return NextResponse.json(assignment, { status: 201 });
+  } catch (error) {
+    console.error('ClassCompetencyAssignments POST error:', error);
+    return NextResponse.json(
+      { error: 'Internal server error' },
+      { status: 500 }
+    );
+  }
+}
+
+export async function DELETE(request: Request) {
+  try {
+    const session = await getSession();
+    if (!session) {
+      return NextResponse.json({ error: 'Not authenticated' }, { status: 401 });
+    }
+
+    if (
+      session.user?.role !== 'SUPER_ADMIN' &&
+      session.user?.role !== 'SCHOOL_ADMIN'
+    ) {
+      return NextResponse.json({ error: 'Forbidden' }, { status: 403 });
+    }
+
+    const { searchParams } = new URL(request.url);
+    const id = searchParams.get('id');
+
+    if (!id) {
+      return NextResponse.json(
+        { error: 'id query parameter is required' },
+        { status: 400 }
+      );
+    }
+
+    await db.classCompetencyAssignment.delete({ where: { id } });
+
+    return NextResponse.json({ message: 'Assignment deleted' });
+  } catch (error) {
+    console.error('ClassCompetencyAssignments DELETE error:', error);
+    return NextResponse.json(
+      { error: 'Internal server error' },
+      { status: 500 }
+    );
+  }
+}