<?php

declare(strict_types=1);

namespace Esun\Translation\Model;

use Magento\Framework\App\Config\ScopeConfigInterface;
use Magento\Framework\Encryption\EncryptorInterface;
use Magento\Store\Model\ScopeInterface;

class Config
{
    private const XML_PATH_ENABLED = 'esun_translation/general/enabled';
    private const XML_PATH_SOURCE_LOCALE = 'esun_translation/general/source_locale';
    private const XML_PATH_SOURCE_STORE_ID = 'esun_translation/general/source_store_id';
    private const XML_PATH_ATTRIBUTES = 'esun_translation/general/translatable_attributes';
    private const XML_PATH_LANGUAGE_GROUPS = 'esun_translation/general/language_groups';
    private const XML_PATH_API_BASE_URL = 'esun_translation/ai/api_base_url';
    private const XML_PATH_API_KEY = 'esun_translation/ai/api_key';
    private const XML_PATH_MODEL = 'esun_translation/ai/model';
    private const XML_PATH_TEMPERATURE = 'esun_translation/ai/temperature';
    private const XML_PATH_TIMEOUT = 'esun_translation/ai/timeout';

    public function __construct(
        private readonly ScopeConfigInterface $scopeConfig,
        private readonly EncryptorInterface $encryptor
    ) {
    }

    public function isEnabled(): bool
    {
        return $this->scopeConfig->isSetFlag(self::XML_PATH_ENABLED, ScopeInterface::SCOPE_STORE);
    }

    public function getSourceLocale(): string
    {
        return trim((string)$this->scopeConfig->getValue(self::XML_PATH_SOURCE_LOCALE)) ?: 'en';
    }

    public function getSourceStoreId(): int
    {
        return max(0, (int)$this->scopeConfig->getValue(self::XML_PATH_SOURCE_STORE_ID));
    }

    /**
     * @return string[]
     */
    public function getTranslatableAttributeCodes(): array
    {
        $raw = (string)$this->scopeConfig->getValue(self::XML_PATH_ATTRIBUTES);
        $codes = preg_split('/[\s,]+/', $raw) ?: [];

        return array_values(array_unique(array_filter(array_map('trim', $codes))));
    }

    public function getLanguageGroupsConfig(): string
    {
        return (string)$this->scopeConfig->getValue(self::XML_PATH_LANGUAGE_GROUPS);
    }

    public function getApiBaseUrl(): string
    {
        return rtrim((string)$this->scopeConfig->getValue(self::XML_PATH_API_BASE_URL), '/');
    }

    public function getApiKey(): string
    {
        $value = (string)$this->scopeConfig->getValue(self::XML_PATH_API_KEY);

        return $value !== '' ? $this->encryptor->decrypt($value) : '';
    }

    public function getModel(): string
    {
        return trim((string)$this->scopeConfig->getValue(self::XML_PATH_MODEL));
    }

    public function getTemperature(): float
    {
        return (float)$this->scopeConfig->getValue(self::XML_PATH_TEMPERATURE);
    }

    public function getTimeout(): int
    {
        return max(1, (int)$this->scopeConfig->getValue(self::XML_PATH_TIMEOUT));
    }
}