# ✅ Supplier Filter Fix - Multiple Payment

## 🐛 Issue

When selecting a supplier in the **Supplier Given Payment → Multiple Payment** page, the booking list was **NOT filtering** by the selected supplier.

---

## 🔍 Root Cause

The backend was missing the `supplier_id` filter in two places:

1. **BookingController** - Not accepting `supplier_id` parameter
2. **BookingRepository** - Not filtering by `supplier_id`

### What Was Missing

**BookingController.php** - Only had `agent_id`:
```php
$filters = [
    'search' => $request->input('search'),
    'booking_type' => $request->input('booking_type'),
    'booking_status' => $request->input('booking_status'),
    'agent_id' => $request->input('agent_id'),  // ✅ Had this
    // ❌ Missing supplier_id
    'from_date' => $request->input('from_date'),
    'to_date' => $request->input('to_date'),
    'per_page' => $request->input('per_page', 15),
];
```

**BookingRepository.php** - Only had `agent_id` filter:
```php
// Filter by agent
if (isset($filters['agent_id']) && !empty($filters['agent_id'])) {
    $query->where('agent_id', $filters['agent_id']);
}
// ❌ Missing supplier_id filter
```

---

## 🔧 Fix Applied

### 1. **BookingController.php** - Added `supplier_id` parameter

```php
$filters = [
    'search' => $request->input('search'),
    'booking_type' => $request->input('booking_type'),
    'booking_status' => $request->input('booking_status'),
    'agent_id' => $request->input('agent_id'),
    'supplier_id' => $request->input('supplier_id'),  // ✅ Added
    'from_date' => $request->input('from_date'),
    'to_date' => $request->input('to_date'),
    'per_page' => $request->input('per_page', 15),
];
```

### 2. **BookingRepository.php** - Added `supplier_id` filter

```php
// Filter by agent
if (isset($filters['agent_id']) && !empty($filters['agent_id'])) {
    $query->where('agent_id', $filters['agent_id']);
}

// Filter by supplier
if (isset($filters['supplier_id']) && !empty($filters['supplier_id'])) {
    $query->where('supplier_id', $filters['supplier_id']);  // ✅ Added
}
```

---

## 📊 How It Works Now

### **Frontend (SupplierGivenPaymentMultiple.jsx)**
```javascript
const filters = {
  supplier_id: selectedSupplier,  // ✅ Sends supplier_id
  search: debouncedSearch,
  booking_type: bookingType,
  booking_status: bookingStatus,
  from_date: appliedFromDate,
  to_date: appliedToDate,
  per_page: 1000,
};
```

### **Backend Flow**
1. **BookingController** receives `supplier_id` parameter ✅
2. **BookingService** passes it to repository ✅
3. **BookingRepository** filters by `supplier_id` ✅
4. **Returns only bookings for that supplier** ✅

---

## 🧪 Testing Steps

1. **Refresh your browser** (Ctrl+Shift+R or Cmd+Shift+R)
2. **Go to:** Supplier Given Payment → Multiple Payment
3. **Select a supplier** from the dropdown
4. **Result:** Should show **ONLY bookings for that supplier** ✅
5. **Change supplier** → List should update immediately ✅
6. **Change booking type** → Should filter within supplier's bookings ✅
7. **Change booking status** → Should filter within supplier's bookings ✅

---

## ✅ What Now Works

### **Before Fix:**
- ❌ Selecting supplier showed ALL bookings
- ❌ No filtering by supplier
- ❌ Confusing for users

### **After Fix:**
- ✅ Selecting supplier shows ONLY that supplier's bookings
- ✅ Filters work correctly within supplier's bookings
- ✅ Fast and accurate
- ✅ Consistent with Agent Receivable Multiple Payment

---

## 📝 Files Modified

1. **app/Http/Controllers/Api/BookingController.php**
   - Added `supplier_id` to filters array

2. **app/Repositories/BookingRepository.php**
   - Added supplier_id filter logic

---

## 🎯 Summary

**Status:** ✅ **FIXED**

**Problem:** Supplier filter not working in Multiple Payment page

**Solution:** Added `supplier_id` filter to backend (Controller + Repository)

**Impact:**
- Supplier filter now works correctly
- Shows only bookings for selected supplier
- Consistent with agent filter behavior
- Better user experience

---

## 🚀 Test It Now!

**Refresh your browser and try selecting different suppliers in the Multiple Payment page!**

The list should now filter correctly by supplier. 🎉

