feat(server): evaluate price alerts per product and fix gold discharge rounding

Alerts now bind to a product_id and share one evaluator; displayed gold within a rounding step discharges the full wallet.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Services/PriceTriggerService.php

@@ -0,0 +1,180 @@
+<?php
+
+namespace App\Services;
+
+use App\Http\Controllers\Controller;
+use App\Mail\YourMailableClass;
+use App\Models\Customer;
+use App\Models\Price;
+use App\Models\PriceTrigger;
+use App\Models\Product;
+use Illuminate\Support\Facades\Log;
+use Illuminate\Support\Facades\Mail;
+
+class PriceTriggerService
+{
+    public function evaluateActive(array $payload = []): void
+    {
+        $triggers = PriceTrigger::query()->where('is_active', true)->get();
+        if ($triggers->isEmpty()) {
+            return;
+        }
+
+        $config = app(ConfigService::class);
+        $display = app(ProductDisplayPriceService::class);
+        $lastPrice = Price::query()->latest('id')->first();
+        $boardPrice = (float) ($payload['price'] ?? $lastPrice?->price ?? 0);
+
+        $productsById = collect();
+        if (PriceTrigger::hasProductIdColumn()) {
+            $ids = $triggers->pluck('product_id')->filter()->unique()->all();
+            if ($ids !== []) {
+                $productsById = Product::query()->whereIn('id', $ids)->get()->keyBy('id');
+                if ($productsById->isNotEmpty()) {
+                    $display->warmLivePriceCache();
+                    $display->enrichForApi($productsById);
+                }
+            }
+        }
+
+        foreach ($triggers as $trigger) {
+            try {
+                $this->tryFire($trigger, $productsById, $display, $config, $boardPrice);
+            } catch (\Throwable $e) {
+                Log::warning('Price trigger evaluate failed', [
+                    'id' => $trigger->id,
+                    'message' => $e->getMessage(),
+                ]);
+            }
+        }
+    }
+
+    private function tryFire(
+        PriceTrigger $trigger,
+        $productsById,
+        ProductDisplayPriceService $display,
+        ConfigService $config,
+        float $boardPrice
+    ): void {
+        $product = $this->resolveProduct($trigger, $productsById);
+        $current = $this->resolveCurrentPrice($trigger, $product, $display, $config, $boardPrice);
+        if ($current <= 0) {
+            return;
+        }
+
+        if (! $this->conditionMet((string) $trigger->price_condition, $current, (float) $trigger->target_price)) {
+            return;
+        }
+
+        $customer = Customer::query()->find($trigger->customer_id);
+        if (! $customer) {
+            return;
+        }
+
+        $this->notify($trigger, $customer, $product, $current);
+
+        $trigger->is_active = false;
+        $trigger->triggered_at = now();
+        $trigger->save();
+    }
+
+    private function resolveProduct(PriceTrigger $trigger, $productsById): ?Product
+    {
+        if (! PriceTrigger::hasProductIdColumn()) {
+            return null;
+        }
+
+        $productId = (int) ($trigger->product_id ?? 0);
+        if ($productId <= 0) {
+            return null;
+        }
+
+        $product = $productsById->get($productId);
+        if ($product instanceof Product) {
+            return $product;
+        }
+
+        return Product::query()->find($productId);
+    }
+
+    private function resolveCurrentPrice(
+        PriceTrigger $trigger,
+        ?Product $product,
+        ProductDisplayPriceService $display,
+        ConfigService $config,
+        float $boardPrice
+    ): float {
+        if ($product instanceof Product) {
+            $enriched = (int) (($product->price ?? 0) + ($product->price_profit ?? 0));
+            if ($enriched > 0) {
+                return (float) $enriched;
+            }
+
+            if ($display->usesAppPrice($product)) {
+                $base = $boardPrice > 0 ? $boardPrice : $display->resolveOrderBasePrice($product);
+                if ($base <= 0) {
+                    return 0.0;
+                }
+
+                $trade = $config->buildTradeDisplayPrices((float) $base, $config->priceProvider());
+                $direction = (int) ($trigger->direction ?? 0);
+
+                return (float) max(0, (int) ($direction === 2 ? $trade['sell'] : $trade['buy']));
+            }
+
+            return max(0.0, (float) $display->resolveOrderBasePrice($product));
+        }
+
+        if ($boardPrice <= 0) {
+            return 0.0;
+        }
+
+        $direction = (int) ($trigger->direction ?? $trigger->dirction ?? 0);
+        $diff = $direction === 1
+            ? $config->displaySellPriceDiffRial()
+            : ($direction === 2 ? $config->displayBuyPriceDiffRial() : 0.0);
+
+        if ($direction === 1) {
+            return max(0.0, $boardPrice - $diff);
+        }
+
+        if ($direction === 2) {
+            return $boardPrice + $diff;
+        }
+
+        return $boardPrice;
+    }
+
+    private function conditionMet(string $op, float $current, float $target): bool
+    {
+        return match ($op) {
+            '>' => $current > $target,
+            '<' => $current < $target,
+            '>=', 'gte' => $current >= $target,
+            '<=', 'lte' => $current <= $target,
+            '==', '=' => abs($current - $target) < 1,
+            default => false,
+        };
+    }
+
+    private function notify(PriceTrigger $trigger, Customer $customer, ?Product $product, float $current): void
+    {
+        $title = trim((string) ($product?->title ?? ''));
+        if ($title === '') {
+            $title = 'طلا';
+        }
+
+        $shopName = (string) Controller::Config('name_fa');
+        $message = 'قیمت ' . $title . ' به ' . number_format((int) $current) . " رسید\n" . $shopName;
+
+        if ($trigger->action === 'email' && ! empty($customer->email)) {
+            Mail::to($customer->email)->send(new YourMailableClass($message, '', '', '', ''));
+
+            return;
+        }
+
+        if ($trigger->action === 'sms' && Controller::isSmsNotifEnabled('sms_notif_price_trigger')) {
+            Controller::Send($customer->mobile, $message);
+        }
+    }
+}