<?php namespace App\Models; use Exception; use Illuminate\Database\Eloquent\Factories\HasFactory; use Illuminate\Database\Eloquent\Model; use Illuminate\Support\Facades\Cache; use Illuminate\Support\Facades\DB; use Illuminate\Support\Facades\Log; class Pricing extends Model { use HasFactory; protected $table = 'pricings'; public $incrementing = false; protected $keyType = 'string'; protected $fillable = ['service_id', 'service_type', 'currency', 'price', 'term', 'as_usd', 'usd_per_month', 'next_due_date']; private static function refreshRates(): object { if (Cache::has("currency_rates")) { return Cache::get("currency_rates"); } $response_json = file_get_contents("https://open.er-api.com/v6/latest/USD"); if (false === $response_json) { Log::error("do file_get_contents failed"); return (object)null; } try { $response = json_decode($response_json); if ('success' === $response->result) { return Cache::remember("currency_rates", now()->addWeek(1), function () use ($response) { return $response->rates; }); } Log::error("server response is " . $response->result . ", expecting success"); } catch (Exception $e) { Log::error("failed to request v6.exchangerate-api.com", ['err' => $e]); } return (object)null; } private static function getRates($currency): float { $rate = self::refreshRates()->$currency; return $rate ?? 1.00; } public static function getCurrencyList(): array { return array_keys((array)self::refreshRates()); } public static function convertFromUSD(string $amount, string $convert_to): float { return $amount * self::getRates($convert_to); } public function convertToUSD(string $amount, string $convert_from): float { return $amount / self::getRates($convert_from); } public function costAsPerMonth(string $cost, int $term): float { if ($term === 1) { return $cost; } elseif ($term === 2) { return ($cost / 3); } elseif ($term === 3) { return ($cost / 6); } elseif ($term === 4) { return ($cost / 12); } elseif ($term === 5) { return ($cost / 24); } elseif ($term === 6) { return ($cost / 36); } else { return $cost; } } public function termAsMonths(int $term): int { if ($term === 1) { return 1; } elseif ($term === 2) { return 3; } elseif ($term === 3) { return 6; } elseif ($term === 4) { return 12; } elseif ($term === 5) { return 24; } elseif ($term === 6) { return 36; } else { return 62; } } public function deletePricing($id): void { DB::table('pricings')->where('service_id', '=', $id)->delete(); } public function insertPricing(int $type, string $service_id, string $currency, float $price, int $term, string $next_due_date, int $is_active = 1): Pricing { $as_usd = $this->convertToUSD($price, $currency); return self::create([ 'service_type' => $type, 'service_id' => $service_id, 'currency' => $currency, 'price' => $price, 'term' => $term, 'as_usd' => $as_usd, 'usd_per_month' => $this->costAsPerMonth($as_usd, $term), 'next_due_date' => $next_due_date, 'active' => $is_active ]); } public function updatePricing(string $service_id, string $currency, float $price, int $term, string $next_due_date, int $is_active = 1): int { $as_usd = $this->convertToUSD($price, $currency); return DB::table('pricings') ->where('service_id', $service_id) ->update([ 'currency' => $currency, 'price' => $price, 'term' => $term, 'as_usd' => $as_usd, 'usd_per_month' => $this->costAsPerMonth($as_usd, $term), 'next_due_date' => $next_due_date, 'active' => $is_active ]); } public static function allPricing() { return Cache::remember('all_pricing', now()->addWeek(1), function () { return Pricing::get(); }); } }