import { useState } from "react";
import { useTranslation } from "react-i18next";
import { networkService } from "../../../Utils/NetworkService";
import { createToast } from "../../../Utils/toastUtils";

// Define constants for notification types to avoid magic values
const NOTIFICATION_TYPES = {
	SLACK: "slack",
	DISCORD: "discord",
	TELEGRAM: "telegram",
	WEBHOOK: "webhook",
};

// Define constants for field IDs
const FIELD_IDS = {
	WEBHOOK: "webhook",
	TOKEN: "token",
	CHAT_ID: "chatId",
	URL: "url",
};

/**
 * Custom hook for notification-related operations
 */
const useNotifications = () => {
	const [loading, setLoading] = useState(false);
	const [error, setError] = useState(undefined);
	const { t } = useTranslation();

	/**
	 * Send a test notification
	 * @param {string} type - The notification type (slack, discord, telegram, webhook)
	 * @param {object} config - Configuration object with necessary params
	 */
	const sendTestNotification = async (type, config) => {
		setLoading(true);
		setError(undefined);

		// Validation based on notification type
		let payload = { platform: type };
		let isValid = true;
		let errorMessage = "";

		switch (type) {
			case NOTIFICATION_TYPES.SLACK:
				payload.webhookUrl = config.webhook;
				if (typeof payload.webhookUrl === "undefined" || payload.webhookUrl === "") {
					isValid = false;
					errorMessage = t("notifications.slack.webhookRequired");
				}
				break;

			case NOTIFICATION_TYPES.DISCORD:
				payload.webhookUrl = config.webhook;
				if (typeof payload.webhookUrl === "undefined" || payload.webhookUrl === "") {
					isValid = false;
					errorMessage = t("notifications.discord.webhookRequired");
				}
				break;

			case NOTIFICATION_TYPES.TELEGRAM:
				payload.botToken = config.token;
				payload.chatId = config.chatId;
				if (
					typeof payload.botToken === "undefined" ||
					payload.botToken === "" ||
					typeof payload.chatId === "undefined" ||
					payload.chatId === ""
				) {
					isValid = false;
					errorMessage = t("notifications.telegram.fieldsRequired");
				}
				break;

			case NOTIFICATION_TYPES.WEBHOOK:
				payload.webhookUrl = config.url;
				payload.platform = NOTIFICATION_TYPES.SLACK;
				if (typeof payload.webhookUrl === "undefined" || payload.webhookUrl === "") {
					isValid = false;
					errorMessage = t("notifications.webhook.urlRequired");
				}
				break;

			default:
				isValid = false;
				errorMessage = t("notifications.unsupportedType");
		}

		// If validation fails, show error and return
		if (isValid === false) {
			createToast({
				body: errorMessage,
				variant: "error",
			});
			setLoading(false);
			return;
		}

		try {
			const response = await networkService.testNotification({
				platform: type,
				payload: payload,
			});

			if (response.data.success === true) {
				createToast({
					body: t("notifications.testSuccess"),
					variant: "info",
				});
			} else {
				throw new Error(response.data.msg || t("notifications.testFailed"));
			}
		} catch (error) {
			const errorMsg =
				error.response?.data?.msg || error.message || t("notifications.networkError");
			createToast({
				body: `${t("notifications.testFailed")}: ${errorMsg}`,
				variant: "error",
			});
			setError(errorMsg);
		} finally {
			setLoading(false);
		}
	};

	return [loading, error, sendTestNotification];
};

export default useNotifications;