khanegi setting and prices records

2026-06-13 17:35:40 +03:30
parent c70cda0b6b
commit 91a82c06e4
15 changed files with 509 additions and 73 deletions
@@ -0,0 +1,173 @@
+<?php
+
+namespace App\Services;
+
+use App\Models\Price;
+use App\Models\PriceCandle;
+use Carbon\Carbon;
+
+class PriceSnapshotService
+{
+    /** هر تیک کران — ذخیره در prices برای نمودار (هرگز صفر ثبت نمی‌شود) */
+    public function recordTick(array $payload): void
+    {
+        $priceValue = (int) ($payload['price'] ?? 0);
+        if ($priceValue <= 30_000_000) {
+            $last = Price::orderByDesc('id')->first();
+            if (! $last || (int) $last->price <= 30_000_000) {
+                return;
+            }
+            $priceValue = (int) $last->price;
+        }
+
+        Price::create([
+            'price' => $priceValue,
+            'date_at' => Carbon::now()->toDateString(),
+            'time_at' => Carbon::now()->toTimeString(),
+            'user_id' => null,
+        ]);
+
+        $this->touchCandle($priceValue);
+    }
+
+    private function touchCandle(int $priceValue): void
+    {
+        $candle = PriceCandle::whereDate('date_at', date('Y-m-d'))->first();
+
+        if ($candle) {
+            $candle->end = $priceValue;
+            if ($priceValue < $candle->low) {
+                $candle->low = $priceValue;
+            } elseif ($priceValue > $candle->high) {
+                $candle->high = $priceValue;
+            }
+            $candle->save();
+
+            return;
+        }
+
+        PriceCandle::create([
+            'start' => $priceValue,
+            'end' => $priceValue,
+            'high' => $priceValue,
+            'low' => $priceValue,
+            'date_at' => date('Y-m-d'),
+        ]);
+    }
+
+    /**
+     * پاک‌سازی شبانه:
+     * - قبل از ۳۱ روز: حذف
+     * - ۷ تا ۳۱ روز: هر ۱۲ ساعت یک رکورد
+     * - ۲۴ ساعت تا ۷ روز: هر ۳۰ دقیقه یک رکورد
+     * - ۲۴ ساعت اخیر: نگه‌داری همه (هر ۱۰ ثانیه)
+     */
+    public function pruneHistory(): array
+    {
+        $deletedOld = Price::query()
+            ->where('created_at', '<', now()->subDays(31))
+            ->delete();
+
+        $deleted7to31 = $this->downsampleRange(now()->subDays(31), now()->subDays(7), 12 * 3600);
+        $deleted1to7 = $this->downsampleRange(now()->subDays(7), now()->subDay(), 30 * 60);
+
+        return [
+            'deleted_older_than_31d' => $deletedOld,
+            'downsampled_7_to_31d' => $deleted7to31,
+            'downsampled_1_to_7d' => $deleted1to7,
+        ];
+    }
+
+    private function downsampleRange(Carbon $from, Carbon $to, int $bucketSeconds): int
+    {
+        $rows = Price::query()
+            ->where('created_at', '>=', $from)
+            ->where('created_at', '<', $to)
+            ->orderBy('created_at')
+            ->get(['id', 'created_at']);
+
+        if ($rows->isEmpty()) {
+            return 0;
+        }
+
+        $keepIds = [];
+        $lastBucket = null;
+
+        foreach ($rows as $row) {
+            $ts = $row->created_at?->timestamp ?? 0;
+            $bucket = (int) floor($ts / $bucketSeconds);
+            if ($bucket !== $lastBucket) {
+                $keepIds[] = $row->id;
+                $lastBucket = $bucket;
+            } else {
+                $keepIds[count($keepIds) - 1] = $row->id;
+            }
+        }
+
+        return Price::query()
+            ->where('created_at', '>=', $from)
+            ->where('created_at', '<', $to)
+            ->whereNotIn('id', $keepIds)
+            ->delete();
+    }
+
+    /** @return array{DAILY: array<int, array{timestamp: int, value: int}>, WEEKLY: array, MONTHLY: array} */
+    public function chartFromDatabase(): array
+    {
+        $daily = Price::query()
+            ->where('created_at', '>=', now()->subDay())
+            ->orderBy('created_at')
+            ->get(['price', 'created_at']);
+
+        $dailyPoints = $daily->map(function (Price $row) {
+            $ts = ($row->created_at ?? now())->timestamp * 1000;
+
+            return ['timestamp' => $ts, 'value' => (int) $row->price];
+        })->values()->all();
+
+        $weekRows = Price::query()
+            ->where('created_at', '>=', now()->subDays(7))
+            ->orderBy('created_at')
+            ->get(['id', 'price', 'created_at']);
+
+        $weeklyPoints = $this->bucketRows($weekRows, 30 * 60);
+
+        $monthRows = Price::query()
+            ->where('created_at', '>=', now()->subDays(31))
+            ->orderBy('created_at')
+            ->get(['id', 'price', 'created_at']);
+
+        $monthlyPoints = $this->bucketRows($monthRows, 12 * 3600);
+
+        return [
+            'DAILY' => $dailyPoints,
+            'WEEKLY' => $weeklyPoints,
+            'MONTHLY' => $monthlyPoints,
+        ];
+    }
+
+    /** @param \Illuminate\Support\Collection<int, Price> $rows */
+    private function bucketRows($rows, int $bucketSeconds): array
+    {
+        $points = [];
+        $lastBucket = null;
+
+        foreach ($rows as $row) {
+            $ts = $row->created_at?->timestamp ?? 0;
+            $bucket = (int) floor($ts / $bucketSeconds);
+            $point = [
+                'timestamp' => $ts * 1000,
+                'value' => (int) $row->price,
+            ];
+
+            if ($bucket !== $lastBucket) {
+                $points[] = $point;
+                $lastBucket = $bucket;
+            } else {
+                $points[count($points) - 1] = $point;
+            }
+        }
+
+        return $points;
+    }
+}