/**
 * view.js
 * Frontend JavaScript for the Form Block
 * Handles form validation and submission
 */
/**
 * view.js
 * Frontend JavaScript for the Form Block
 */
class FormBlock {
	constructor() {
		this.controller = window.jvbForm;

		document.querySelectorAll('.jvb-form-block form').forEach(form => {
			this.controller.registerForm(form, {
				autosave: true,
				autoUpload: false,
				showSummary: true,
			});
		});

		this.controller.subscribe((event, data) => {
			if (event === 'form-submit') {
				this.handleFormSubmission(data).then(()=>{});
			}
		});
	}

	async handleFormSubmission(eventData) {
		const { config, data } = eventData;
		const form = config.element;

		const submitData = new FormData();

		// Add regular form fields
		for (const [key, value] of Object.entries(data)) {
			if (key === '_wpnonce' || key === '_wp_http_referer') continue;

			if (Array.isArray(value)) {
				value.forEach(v => submitData.append(`${key}[]`, v));
			} else if (typeof value === 'object' && value !== null) {
				submitData.append(key, JSON.stringify(value));
			} else {
				submitData.append(key, value);
			}
		}

		// Add uploaded files
		if (window.jvbUploads) {
			try {
				const files = await window.jvbUploads.getFilesForForm(form);
				files.forEach(({ file, fieldName }) => {
					submitData.append(`${fieldName}[]`, file);
				});
			} catch (error) {
				console.error('Error getting files:', error);
			}
		}

		this.controller.showFormStatus(config.id, 'uploading');

		try {
			const response = await fetch(`${jvbSettings.api}forms`, {
				method: 'POST',
				credentials: 'same-origin',
				body: submitData
			});

			const result = await response.json();

			if (!response.ok) {
				this.controller.showFormStatus(config.id, 'error');
				this.controller.handleFormError(form, result);
				return;
			}

			this.controller.showFormStatus(config.id, 'submitted');
			this.controller.showSummary(config.id, '.jvb-form-block');

			// Clean up uploaded files
			if (window.jvbUploads) {
				const uploadFields = form.querySelectorAll('[data-upload-field]');
				for (const field of uploadFields) {
					const fieldId = window.jvbUploads.determineFieldId(field);
					await window.jvbUploads.clearFieldFromStores(fieldId);
				}
			}

		} catch (error) {
			console.error('Form submission error:', error);
			this.controller.showFormStatus(config.id, 'error');
			this.controller.handleFormError(form, {
				message: 'Network error. Please check your connection and try again.',
				code: 'network_error'
			});
		} finally {
			await this.controller.store.delete(config.id);
		}
	}
}

document.addEventListener('DOMContentLoaded', async function() {
	window.auth.subscribe(event => {
		if (event === 'auth-loaded') {
			new FormBlock();
		}
	});
});