my-idlers/app/Models/Pricing.php

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<?php
namespace App\Models;
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use Exception;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\DB;
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use Illuminate\Support\Facades\Log;
class Pricing extends Model
{
use HasFactory;
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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'];
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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' => $e]);
}
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return (object)null;
}
private static function getRates($currency): float
{
$rate = self::refreshRates()->$currency;
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return $rate ?? 1.00;
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}
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
{
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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_active_pricing', now()->addWeek(1), function () {
return Pricing::where('active', 1)->get();
});
}
}