public function parse()
{
$obj = $this->curl->get('https://www.tinkoff.ru/api/v1/currency_rates/');
$rates = $obj->payload->rates;
$hash = md5(serialize($rates));
$last_update = Update::all()->last();
if ($last_update && $hash == $last_update->hash) {
//nothing changed
return "Nothing to update\n";
}
$update = Update::create(['hash' => $hash]);
foreach ($rates as $rate) {
$row = new Exchange();
$row->category = $rate->category;
$row->operation = 'buy';
$row->from = $rate->fromCurrency->name;
$row->to = $rate->toCurrency->name;
$row->value = $rate->buy;
$row->update_id = $update->id;
$row->save();
if (isset($rate->sell)) {
$row = new Exchange();
$row->category = $rate->category;
$row->operation = 'sell';
$row->from = $rate->fromCurrency->name;
$row->to = $rate->toCurrency->name;
$row->value = $rate->sell;
$row->update_id = $update->id;
$row->save();
}
}
}
