<?php
namespace ProVM\Crypto\Common\Service;

use GuzzleHttp\Client;
use Carbon\Carbon;
use ProVM\Common\Factory\Model as Factory;
use ProVM\Crypto\Coin;
use ProVM\Crypto\Value;

class Update {
  protected $factory;
  protected $client;
  public function __construct(Factory $factory, Client $client) {
    $this->factory = $factory;
    $this->client = $client;
    $this->load();
  }
  public function load() {
    $this->coins = [[], []];
    $results = \ORM::for_table('coin_registers')->find_many();
    foreach ($results as $result) {
      $this->coins[$result->type] []= $result->coin_id;
    }
  }
  protected $coins;
  public function register(int $coin_id, int $type = 0) {
    if (array_search($coin_id, $this->coins[$type]) !== false) {
      return false;
    }
    $this->coins[$type] []= $coin_id;
    $this->getHistorical($coin_id, $type);
    $check = \ORM::for_table('coin_registers')->where('coin_id', $coin_id)->find_one();
    if (!$check) {
      return \ORM::raw_execute("INSERT INTO coin_registers (coin_id, type, date_Time) VALUES (?, ?, NOW())", [$coin_id, $type]);
    }
    return true;
  }
  protected function getHistorical(int $coin_id, int $type) {
    $coin = $this->factory->find(Coin::class)->one($coin_id);
    $f = Carbon::now();
    $url = [];
    switch ($type) {
      case 0:
        return $this->getHistoricalCrypto($coin);
      case 1:
        return $this->getHistoricalIndicador($coin);
      default:
        return false;
    }
  }
  protected function getHistoricalCrypto(Coin $coin) {
    $f = Carbon::now();
    $url = [];
    $url []= 'crypto';
    $url []= 'historical';
    $url []= $coin->identifier;
    $url []= $f->copy()->subYears(10)->timestamp;
    $url []= $f->timestamp;
    $url = implode('/', $url);
    $to = $this->factory->find(Coin::class)->where([['code', 'USD']])->one();
    $response = $this->client->get($url);
    $results = json_decode($response->getBody()->getContents());
    $created = [];
    foreach ($results->prices as $result) {
      $d = Carbon::createFromTimestamp(substr($result[0], 0, -3));
      $value = $result[1];
      $data = [
        'date_time' => $d->format('Y-m-d H:i:s'),
        'coin_id' => $coin->id,
        'value' => $value,
        'unit_id' => $to->id
      ];
      $value = Value::add($this->factory, $data);
      $status = $value->save();
      $created []= [
        'value' => $value->toArray(),
        'created' => $status
      ];
    }
    return $created;
  }
  protected function getHistoricalIndicador(Coin $coin) {
    $f = Carbon::now();
    $urls = [];
    for ($i = 10; $i >= 0; $i --) {
      $url = [];
      $url []= 'indicador';
      $url []= 'historical';
      $url []= $coin->identifier;
      $url []= $f->copy()->subYears($i)->year;
      $urls []= implode('/', $url);
    }
    $to = $this->factory->find(Coin::class)->where([['code', 'CLP']])->one();
    $created = [];
    foreach ($urls as $url) {
      $response = $this->client->get($url);
      $results = json_decode($response->getBody()->getContents());
      foreach ($results->serie as $result) {
        $d = Carbon::parse($result->fecha);
        $value = $result->valor;
        $data = [
          'date_time' => $d->format('Y-m-d H:i:s'),
          'coin_id' => $coin->id,
          'value' => $value,
          'unit_id' => $to->id
        ];
        $value = Value::add($this->factory, $data);
        $status = $value->save();
        $created []= [
          'value' => $value->toArray(),
          'created' => $status
        ];
      }
    }
    return $created;
  }
  public function run() {
    $created = [];
    $created = array_merge($created, $this->getCryptos($this->coins[0]));
    $created = array_merge($created, $this->getIndicadores($this->coins[1]));
    return $created;
  }
  protected function getCryptos(array $coins) {
    $created = [];
    foreach ($coins as $coin_id) {
      $coin = $this->factory->find(Coin::class)->one($coin_id);
      $url = [];
      $url []= 'crypto';
      $url []= $coin->identifier;
      $url = implode('/', $url);
      $to = $this->factory->find(Coin::class)->where([['code', 'USD']])->one();
      $response = $this->client->get($url);
      $results = json_decode($response->getBody()->getContents());
      $data = [
        'date_time' => $results->n->last_updated_at,
        'coin_id' => $coin->id,
        'value' => 1 / $results->n->usd,
        'unit_id' => $to->id
      ];
      $value = Value::add($this->factory, $data);
      $status = $value->save();
      $created []= [
        'value' => $value->toArray(),
        'created' => $status
      ];
    }
    return $created;
  }
  protected function getIndicadores(array $coins) {
    $created = [];
    foreach ($coins as $coin_id) {
      $coin = $this->factory->find(Coin::class)->one($coin_id);
      $f = Carbon::now();
      $url = [];
      $url []= 'indicador';
      $url []= $coin->identifier;
      $url []= $f->format('d-m-Y');
      $url = implode('/', $url);
      $to = $this->factory->find(Coin::class)->where([['code', 'CLP']])->one();
      $response = $this->client->get($url);
      $results = json_decode($response->getBody()->getContents());
      $data = [
        'date_time' => $results->serie[0]->fecha,
        'coin_id' => $coin->id,
        'value' => $results->serie[0]->valor,
        'unit_id' => $to->id
      ];
      $value = Value::add($this->factory, $data);
      $status = $value->save();
      $created []= [
        'value' => $value->toArray(),
        'created' => $status
      ];
    }
    return $created;
  }
}