boursecu_server/app/Services/ConfigService.php

<?php

namespace App\Services;

use App\Models\Setting;

class ConfigService
{
    public function Config($name)
    {
        return Setting::where('key', $name)->value('value') ?? false;
    }

    public function UpdateConfig($name, $value)
    {
        return Setting::updateOrCreate(
            ['key' => $name],
            ['value' => $value]
        );
    }

    public function trackDailyPriceExtreme(float $price): void
    {
        if ($price <= 0) {
            return;
        }

        $upSetting = Setting::where('key', 'up_price')->first();
        $downSetting = Setting::where('key', 'down_price')->first();

        if (!$upSetting || !$downSetting) {
            return;
        }

        $priceInt = (int) round($price);
        $today = now()->toDateString();
        $extremeDate = $this->Config('price_extreme_date');

        if ($extremeDate !== $today) {
            $this->UpdateConfig('up_price', $priceInt);
            $this->UpdateConfig('down_price', $priceInt);
            $this->UpdateConfig('price_extreme_date', $today);
            return;
        }

        $currentUp = (float) ($upSetting->value ?: 0);
        $currentDown = (float) ($downSetting->value ?: 0);

        if ($currentUp <= 0 || $priceInt > $currentUp) {
            $this->UpdateConfig('up_price', $priceInt);
        }
        if ($currentDown <= 0 || $priceInt < $currentDown) {
            $this->UpdateConfig('down_price', $priceInt);
        }
    }
}