feat(staff column order in aptmpt page)

apps/Backend/src/storage/staff-storage.ts

@@ -1,11 +1,14 @@
-import { Staff } from "@repo/db/types";
+import { Staff, StaffCreateInput, StaffUpdateInput } from "@repo/db/types";
 import { prisma as db } from "@repo/db/client";
 
 export interface IStorage {
   getStaff(id: number): Promise<Staff | undefined>;
   getAllStaff(): Promise<Staff[]>;
-  createStaff(staff: Staff): Promise<Staff>;
-  updateStaff(id: number, updates: Partial<Staff>): Promise<Staff | undefined>;
+  createStaff(staff: StaffCreateInput): Promise<Staff>;
+  updateStaff(
+    id: number,
+    updates: StaffUpdateInput,
+  ): Promise<Staff | undefined>;
   deleteStaff(id: number): Promise<boolean>;
   countAppointmentsByStaffId(staffId: number): Promise<number>;
   countClaimsByStaffId(staffId: number): Promise<number>;
@@ -19,38 +22,122 @@ export const staffStorage: IStorage = {
   },
 
   async getAllStaff(): Promise<Staff[]> {
-    const staff = await db.staff.findMany();
-    return staff;
-  },
-
-  async createStaff(staff: Staff): Promise<Staff> {
-    const createdStaff = await db.staff.create({
-      data: staff,
+    return db.staff.findMany({
+      orderBy: { displayOrder: "asc" },
     });
-    return createdStaff;
   },
 
+  async createStaff(staff: StaffCreateInput): Promise<Staff> {
+    const max = await db.staff.aggregate({
+      where: {
+        userId: staff.userId,
+        displayOrder: { gt: 0 },
+      },
+      _max: { displayOrder: true },
+    });
+
+    return db.staff.create({
+      data: {
+        ...staff,
+        displayOrder: (max._max.displayOrder ?? 0) + 1,
+      },
+    });
+  },
+  
   async updateStaff(
     id: number,
-    updates: Partial<Staff>
+    updates: StaffUpdateInput,
   ): Promise<Staff | undefined> {
-    const updatedStaff = await db.staff.update({
-      where: { id },
-      data: updates,
+    return db.$transaction(async (tx: any) => {
+      const staff = await tx.staff.findUnique({ where: { id } });
+      if (!staff) return undefined;
+
+      const { userId, displayOrder: oldOrder } = staff;
+      const newOrder = updates.displayOrder;
+
+      if (newOrder === undefined || newOrder === oldOrder) {
+        return tx.staff.update({
+          where: { id },
+          data: updates,
+        });
+      }
+
+      const totalStaff = await tx.staff.count({ where: { userId } });
+
+      if (newOrder < 1 || newOrder > totalStaff) {
+        throw new Error(`displayOrder must be between 1 and ${totalStaff}`);
+      }
+
+      const occupyingStaff = await tx.staff.findFirst({
+        where: {
+          userId,
+          displayOrder: newOrder,
+        },
+      });
+
+      // CASE 1: staff already had a slot → SWAP
+      if (oldOrder && oldOrder > 0 && occupyingStaff) {
+        await tx.staff.update({
+          where: { id: occupyingStaff.id },
+          data: { displayOrder: oldOrder },
+        });
+      }
+
+      // CASE 2: first-time assignment (oldOrder = 0)
+      if ((!oldOrder || oldOrder === 0) && occupyingStaff) {
+        // find first free slot
+        const usedOrders = await tx.staff.findMany({
+          where: {
+            userId,
+            displayOrder: { gt: 0 },
+          },
+          select: { displayOrder: true },
+          orderBy: { displayOrder: "asc" },
+        });
+
+        const usedSet = new Set(usedOrders.map((s: any) => s.displayOrder));
+        let freeSlot = 1;
+        while (usedSet.has(freeSlot)) freeSlot++;
+
+        await tx.staff.update({
+          where: { id: occupyingStaff.id },
+          data: { displayOrder: freeSlot },
+        });
+      }
+
+      return tx.staff.update({
+        where: { id },
+        data: {
+          ...updates,
+          displayOrder: newOrder,
+        },
+      });
     });
-    return updatedStaff ?? undefined;
   },
 
   async deleteStaff(id: number): Promise<boolean> {
-    try {
-      await db.staff.delete({ where: { id } });
-      return true;
-    } catch (error) {
-      console.error("Error deleting staff:", error);
-      return false;
-    }
-  },
+    return db.$transaction(async (tx: any) => {
+      const staff = await tx.staff.findUnique({ where: { id } });
+      if (!staff) return false;
 
+      const { userId, displayOrder } = staff;
+
+      await tx.staff.delete({ where: { id } });
+
+      // Shift left to remove gap
+      await tx.staff.updateMany({
+        where: {
+          userId,
+          displayOrder: { gt: displayOrder },
+        },
+        data: {
+          displayOrder: { decrement: 1 },
+        },
+      });
+
+      return true;
+    });
+  },
   async countAppointmentsByStaffId(staffId: number): Promise<number> {
     return await db.appointment.count({ where: { staffId } });
   },