Kimi chinh sua

2026-04-24 08:58:53 +00:00
parent 91ff4a5e4d
commit 86216ef872
43 changed files with 2868 additions and 597 deletions
--- a/app/Observers/PaymentObserver.php
+++ b/app/Observers/PaymentObserver.php
@@ -0,0 +1,120 @@
+<?php
+
+namespace App\Observers;
+
+use App\Models\Payment;
+use App\Models\Contract;
+use App\Models\PaymentScheduleItem;
+
+class PaymentObserver
+{
+    private static bool $handlingSurplus = false;
+
+    /**
+     * Tính toán lại tài chính hợp đồng sau mỗi thay đổi payment.
+     */
+    private function recalculateContract(Contract $contract): void
+    {
+        $totalPaid = (float) $contract->payments()->sum('amount');
+        $contractValue = (float) $contract->total_value;
+
+        $contract->paid_amount = $totalPaid;
+
+        if ($totalPaid > $contractValue) {
+            $contract->remaining_amount = 0;
+            $contract->excess_amount = $totalPaid - $contractValue;
+        } else {
+            $contract->remaining_amount = $contractValue - $totalPaid;
+            $contract->excess_amount = 0;
+        }
+
+        $contract->saveQuietly();
+    }
+
+    /**
+     * Tự động khấu trừ tiền dư vào đợt thanh toán tiếp theo.
+     */
+    private function applySurplusToNextInstallment(Contract $contract): void
+    {
+        if (self::$handlingSurplus) {
+            return;
+        }
+
+        $excess = (float) $contract->excess_amount;
+        if ($excess <= 0) {
+            return;
+        }
+
+        // Tìm đợt tiếp theo chưa thanh toán đủ (hoặc chưa có payment nào)
+        $nextItem = PaymentScheduleItem::query()
+            ->whereHas('schedule', fn ($q) => $q->where('contract_id', $contract->id))
+            ->whereNotNull('amount')
+            ->orderBy('installment_no')
+            ->get()
+            ->first(function ($item) use ($contract) {
+                $paidForItem = (float) $contract->payments()
+                    ->where('schedule_item_id', $item->id)
+                    ->sum('amount');
+                return $paidForItem < (float) $item->amount;
+            });
+
+        if (! $nextItem) {
+            return;
+        }
+
+        $paidForItem = (float) $contract->payments()
+            ->where('schedule_item_id', $nextItem->id)
+            ->sum('amount');
+        $remainingForItem = (float) $nextItem->amount - $paidForItem;
+
+        if ($remainingForItem <= 0) {
+            return;
+        }
+
+        $applyAmount = min($excess, $remainingForItem);
+
+        self::$handlingSurplus = true;
+
+        Payment::create([
+            'contract_id' => $contract->id,
+            'schedule_item_id' => $nextItem->id,
+            'amount' => $applyAmount,
+            'paid_date' => now(),
+            'method' => 'Tự động khấu trừ',
+            'receipt_number' => 'AUTO-SURPLUS-' . now()->format('YmdHis'),
+            'metadata' => ['auto_surplus' => true, 'source' => 'excess_amount'],
+        ]);
+
+        self::$handlingSurplus = false;
+    }
+
+    public function created(Payment $payment): void
+    {
+        if ($payment->contract) {
+            $this->recalculateContract($payment->contract);
+            $this->applySurplusToNextInstallment($payment->contract);
+        }
+    }
+
+    public function updated(Payment $payment): void
+    {
+        if ($payment->contract) {
+            $this->recalculateContract($payment->contract);
+            $this->applySurplusToNextInstallment($payment->contract);
+        }
+
+        if ($payment->wasChanged('contract_id') && $payment->getOriginal('contract_id')) {
+            $oldContract = Contract::find($payment->getOriginal('contract_id'));
+            if ($oldContract) {
+                $this->recalculateContract($oldContract);
+            }
+        }
+    }
+
+    public function deleted(Payment $payment): void
+    {
+        if ($payment->contract) {
+            $this->recalculateContract($payment->contract);
+        }
+    }
+}