import { showErrorAlert, loaderHandler } from './helpers';

/**
 * Handles the asynchronous request to clear the accessible documents table.
 * Sends a POST request to the WordPress AJAX endpoint with a nonce for security.
 * 
 * @returns {Promise<any>} - Returns the result of the AJAX call as a JSON object.
 * @throws {Error} - Throws an error if the request fails or an unexpected error occurs.
 */
const handleClearAccessibleDocsTable = async (): Promise<any> => {
    try {
        const formData = new FormData();
        formData.append('action', 'accessible_docs_clear_table');

        // @ts-ignore
        formData.append('nonce', accessible_docs_object.nonce);

        // @ts-ignore
        const response = await fetch(accessible_docs_object.ajax_url, {
            method: 'POST',
            body: formData,
        });

        if (!response.ok) {
            showErrorAlert(`Request failed with status: ${response.status}`);
            throw new Error(`Request failed with status: ${response.status}`);
        }

        const result = await response.json();

        return result.data; // Default to 'success' if status is missing
    } catch (error: any) {
        showErrorAlert(error);
        throw new Error(`Error: ${error}`);
    }
};

/**
 * Initializes the event handlers for clear table button.
 */
const initClearDocumentsTable = () => {
    const clearButton = document.querySelector('.js-clear-table-button') as HTMLElement | null;
    
    if (clearButton) {
        clearButton.addEventListener('click', async () => {
            if (window.confirm(clearButton.dataset.text)) {
                loaderHandler('add');

                const request = await handleClearAccessibleDocsTable();
                
                if (request.status === 'success') {
                    window.location.href = `${window.location.origin}${window.location.pathname}?page=accessible-docs-admin-documents-list`;
                } else {
                    loaderHandler('remove');
                    alert(request.error);
                }
            }
        });
    }
};

export default initClearDocumentsTable;