app/(defaults)/page.tsx

@@ -43,7 +43,7 @@ const Sales = () => {
             <p className="mt-4 text-green-700">You selected: {selectedSite}</p>
             <button
               onClick={handleGoToDashboard}
-              className="bg-yellow-400 hover:bg-yellow-500 text-white font-semibold py-2 px-4 rounded"
+              className="btn-primary"
             >
               Go to Dashboard
             </button>

app/api/sites/route.ts

@@ -0,0 +1,20 @@
+// app/api/sites/route.ts
+import { NextResponse } from 'next/server';
+import prisma from '@/lib/prisma';
+
+export async function GET() {
+  try {
+    const sites = await prisma.site.findMany({
+      include: {
+        consumptionData: true,
+        generationData: true,
+      },
+    });
+    console.log('✅ Sites:', sites);
+    return NextResponse.json(sites);
+  } catch (error) {
+    console.error('❌ Error fetching sites:', error);
+    return new NextResponse('Failed to fetch sites', { status: 500 });
+  }
+}
+

components/dashboards/MonthlyBarChart.tsx

@@ -40,16 +40,19 @@ const MonthlyBarChart: React.FC<MonthlyBarChartProps> = ({ siteData }) => {
             generation: 0,
         }));
 
+        // Group daily data into months (assume data is in order from Jan 1 to Dec 31)
         // Group daily data into months (assume data is in order from Jan 1 to Dec 31)
         for (let i = 0; i < siteData.consumptionData.length; i++) {
-            const monthIndex = Math.floor(i / 30.42); // Rough approximation (or replace with actual dates if available)
+            const monthIndex = Math.floor(i / 30.42); // Rough approximation
             if (monthIndex < 12) {
                 monthlyData[monthIndex].consumption += siteData.consumptionData[i];
                 monthlyData[monthIndex].generation += siteData.generationData[i];
             }
         }
 
-        return monthlyData;
+        // ✅ Only return the last 3 months
+        return monthlyData.slice(-6);
+
     }, [siteData]);
 
     if (!siteData || chartData.length === 0) {

lib/prisma.ts

@@ -0,0 +1,6 @@
+// lib/prisma.ts (create this file to reuse Prisma client instance)
+import { PrismaClient } from '@prisma/client';
+
+const prisma = new PrismaClient();
+
+export default prisma;

prisma/migrations/20250605044712_init_site_energy_schema/migration.sql

@@ -0,0 +1,39 @@
+-- CreateTable
+CREATE TABLE "Site" (
+    "id" SERIAL NOT NULL,
+    "name" TEXT NOT NULL,
+    "location" TEXT NOT NULL,
+    "inverterProvider" TEXT NOT NULL,
+    "emergencyContact" TEXT NOT NULL,
+    "lastSyncTimestamp" TIMESTAMP(3) NOT NULL,
+    "theoreticalMaxGeneration_kWh" DOUBLE PRECISION NOT NULL,
+
+    CONSTRAINT "Site_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "EnergyData" (
+    "id" SERIAL NOT NULL,
+    "type" TEXT NOT NULL,
+    "timestamp" TIMESTAMP(3) NOT NULL,
+    "value" DOUBLE PRECISION NOT NULL,
+    "consumptionSiteId" INTEGER,
+    "generationSiteId" INTEGER,
+
+    CONSTRAINT "EnergyData_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "Site_name_key" ON "Site"("name");
+
+-- CreateIndex
+CREATE INDEX "EnergyData_consumptionSiteId_idx" ON "EnergyData"("consumptionSiteId");
+
+-- CreateIndex
+CREATE INDEX "EnergyData_generationSiteId_idx" ON "EnergyData"("generationSiteId");
+
+-- AddForeignKey
+ALTER TABLE "EnergyData" ADD CONSTRAINT "EnergyData_consumptionSiteId_fkey" FOREIGN KEY ("consumptionSiteId") REFERENCES "Site"("id") ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "EnergyData" ADD CONSTRAINT "EnergyData_generationSiteId_fkey" FOREIGN KEY ("generationSiteId") REFERENCES "Site"("id") ON DELETE SET NULL ON UPDATE CASCADE;

prisma/seed.js

@@ -0,0 +1,44 @@
+const { PrismaClient } = require('@prisma/client');
+const prisma = new PrismaClient();
+
+async function main() {
+  const site = await prisma.site.create({
+    data: {
+      name: 'Solar Rooftop 2',
+      location: 'Malaysia',
+      inverterProvider: 'Huawei',
+      emergencyContact: '012-3456789',
+      lastSyncTimestamp: new Date(),
+      theoreticalMaxGeneration_kWh: 5000,
+      consumptionData: {
+        create: [
+          {
+            type: 'consumption',
+            timestamp: new Date('2025-01-01T00:00:00Z'),
+            value: 120.5,
+          },
+        ],
+      },
+      generationData: {
+        create: [
+          {
+            type: 'generation',
+            timestamp: new Date('2025-01-01T00:00:00Z'),
+            value: 200.75,
+          },
+        ],
+      },
+    },
+  });
+
+  console.log('Seeded site:', site.name);
+}
+
+main()
+  .then(() => prisma.$disconnect())
+  .catch(async (e) => {
+    console.error(e);
+    await prisma.$disconnect();
+    process.exit(1);
+  });
+