package de.rwu.easydrop.api.client;

import java.net.MalformedURLException;
import java.net.URL;

import de.rwu.easydrop.model.Webshop;

/**
 * Sends a buy request to the Amazon API.
 *
 * @since 0.3.0
 */
public final class AmazonPurchaser extends AbstractPurchaser {
    /**
     * Name of this data source.
     */
    private static final Webshop DATA_TARGET = Webshop.AMAZON;
    /**
     * Base URL to the Amazon Purchase API.
     */
    private String baseUrl;
    /**
     * Access credential.
     */
    private String apiKey;
    /**
     * Product region parameter required for data writes.
     */
    private static final String PRODUCT_REGION = "DE";
    /**
     * Locale parameter required for data writes.
     */
    private static final String LOCALE = "de_DE";

    /**
     * Sets up instance with Base URL and API Key.
     *
     * @param newBaseUrl
     * @param newApiKey
     */
    public AmazonPurchaser(final String newBaseUrl, final String newApiKey) {
        this.baseUrl = newBaseUrl;
        this.apiKey = newApiKey;
    }

    /**
     * @param productId ASIN
     */
    @Override
    protected URL createApiUrl(final String productId) throws MalformedURLException {
        return new URL(baseUrl
                + "/products/2020-08-26/products/"
                + productId
                + "/buy?productRegion="
                + PRODUCT_REGION
                + "&locale="
                + LOCALE);
    }

    @Override
    protected String getApiKey() {
        return this.apiKey;
    }

    @Override
    protected Webshop getDataTarget() {
        return DATA_TARGET;
    }
}