52 lines
2.0 KiB
PHP
52 lines
2.0 KiB
PHP
<?php
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namespace App\Http\Controllers\Api;
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use App\Models\Group;
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use App\Models\Trading;
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use App\Transformers\TradingTransformer;
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use Illuminate\Http\Request;
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class TradingsController extends ApiController
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{
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public function index(Request $request)
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{
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$last_tradings = Group::where("type", "trading")->with("tradings")->latest()->first()->tradings;
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$last_tradings = $last_tradings->unique('title');
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$tradings = [];
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foreach($last_tradings as $trading){
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$title = trim(strtok($trading->title, '('));
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$before_last_trading = Trading::where("title",'LIKE', "%{$title}%")->where('group_id', '!=', $trading->group_id)->latest()->first();
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$difference = !$before_last_trading ? 0 : $this->getPercentageDifference($trading->price ?? 0, $before_last_trading->price ?? 0);
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array_push($tradings, (object)[
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'id' => $trading->id,
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'title' => $title,
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'unit' => $trading->unit,
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'price' => $trading->price,
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'old_price' => !$before_last_trading ? 0 : $before_last_trading->price,
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'price_change' => number_format($difference, 1, ".", "")."%",
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'amount' => $trading->amount,
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'currency' => $trading->currency,
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'seller_country' => $trading->seller_country,
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'buyer_country' => $trading->buyer_country,
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'point' => $trading->point,
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]);
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}
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$tradings = Trading::hydrate($tradings);
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return $this->respondWithCollection($tradings, new TradingTransformer);
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}
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function getPercentageDifference($new, $old){
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// return (($new - $old) / $old) * 100;
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// return (abs(($old - $new)) / ($old + $new) /2);
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// return (abs($old - $new) / (($old + $new)/ 2)) * 100;
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// return (abs($old - $new) / (($old + $new)/ 2)) * 100;
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return (($new - $old) / abs($old)) * 100;
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}
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}
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