Code maintainability fixes

server/src/scripts/migratePlans.ts

@@ -0,0 +1,42 @@
+import { PrismaClient } from '@prisma/client';
+
+const prisma = new PrismaClient();
+
+async function migrate() {
+    console.log('Starting migration...');
+    const plans = await prisma.workoutPlan.findMany();
+    console.log(`Found ${plans.length} plans.`);
+
+    for (const plan of plans) {
+        if (plan.exercises) {
+            try {
+                const steps = JSON.parse(plan.exercises);
+                console.log(`Migrating plan ${plan.name} (${plan.id}) with ${steps.length} steps.`);
+
+                let order = 0;
+                for (const step of steps) {
+                    await prisma.planExercise.create({
+                        data: {
+                            planId: plan.id,
+                            exerciseId: step.exerciseId,
+                            order: order++,
+                            isWeighted: step.isWeighted || false
+                        }
+                    });
+                }
+            } catch (e) {
+                console.error(`Error parsing JSON for plan ${plan.id}:`, e);
+            }
+        }
+    }
+    console.log('Migration complete.');
+}
+
+migrate()
+    .catch((e) => {
+        console.error(e);
+        process.exit(1);
+    })
+    .finally(async () => {
+        await prisma.$disconnect();
+    });