/**
 * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
 * SPDX-FileCopyrightText: 2015 ownCloud, Inc.
 * SPDX-License-Identifier: AGPL-3.0-only
 */
window.addEventListener('DOMContentLoaded', function() {
	OCA.Files_External.Settings.mountConfig.whenSelectAuthMechanism(function($tr, authMechanism, scheme, onCompletion) {
		if (scheme === 'publickey' && authMechanism === 'publickey::rsa') {
			const config = $tr.find('.configuration')
			if ($(config).find('[name="public_key_generate"]').length === 0) {
				setupTableRow($tr, config)
				onCompletion.then(function() {
					// If there's no private key, build one
					if (0 === $(config).find('[data-parameter="private_key"]').val().length) {
						generateKeys($tr)
					}
				})
			}
		}
	})

	$('#externalStorage').on('click', '[name="public_key_generate"]', function(event) {
		event.preventDefault()
		const tr = $(this).parent().parent()
		generateKeys(tr)
	})

	/**
	 *
	 * @param tr
	 * @param config
	 */
	function setupTableRow(tr, config) {
		const selectList = document.createElement('select')
		selectList.id = 'keyLength'

		const options = [1024, 2048, 4096]
		for (let i = 0; i < options.length; i++) {
			const option = document.createElement('option')
			option.value = options[i]
			option.text = options[i]
			selectList.appendChild(option)
		}

		$(config).append(selectList)

		$(config).append($(document.createElement('input'))
			.addClass('button auth-param')
			.attr('type', 'button')
			.attr('value', t('files_external', 'Generate keys'))
			.attr('name', 'public_key_generate'))
	}

	/**
	 *
	 * @param tr
	 */
	function generateKeys(tr) {
		const config = $(tr).find('.configuration')
		const keyLength = config.find('#keyLength').val()

		$.post(OC.filePath('files_external', 'ajax', 'public_key.php'), {
			keyLength,
		}, function(result) {
			if (result && result.status === 'success') {
				$(config).find('[data-parameter="public_key"]').val(result.data.public_key).keyup()
				$(config).find('[data-parameter="private_key"]').val(result.data.private_key)
				OCA.Files_External.Settings.mountConfig.saveStorageConfig(tr, function() {
					// Nothing to do
				})
			} else {
				OC.dialogs.alert(result.data.message, t('files_external', 'Error generating key pair'))
			}
		})
	}
})