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/* global tb_remove, JSON */
window.wp = window.wp || {};

(function ($, wp) {
	'use strict'

	wp.envato = {}

	/**
	 * User nonce for ajax calls.
	 *
	 * @since 1.0.0
	 *
	 * @var string
	 */
	wp.envato.ajaxNonce = window._wpUpdatesSettings.ajax_nonce

	/**
	 * Whether filesystem credentials need to be requested from the user.
	 *
	 * @since 1.0.0
	 *
	 * @var bool
	 */
	wp.envato.shouldRequestFilesystemCredentials = null

	/**
	 * Filesystem credentials to be packaged along with the request.
	 *
	 * @since 1.0.0
	 *
	 * @var object
	 */
	wp.envato.filesystemCredentials = {
		ftp: {
			host: null,
			username: null,
			password: null,
			connectionType: null
		},
		ssh: {
			publicKey: null,
			privateKey: null
		}
	}

	/**
	 * Flag if we're waiting for an update to complete.
	 *
	 * @since 1.0.0
	 *
	 * @var bool
	 */
	wp.envato.updateLock = false

	/**
	 * * Flag if we've done an update successfully.
	 *
	 * @since 1.0.0
	 *
	 * @var bool
	 */
	wp.envato.updateDoneSuccessfully = false

	/**
	 * If the user tries to update a plugin while an update is
	 * already happening, it can be placed in this queue to perform later.
	 *
	 * @since 1.0.0
	 *
	 * @var array
	 */
	wp.envato.updateQueue = []

	/**
	 * Store a jQuery reference to return focus to when exiting the request credentials modal.
	 *
	 * @since 1.0.0
	 *
	 * @var jQuery object
	 */
	wp.envato.$elToReturnFocusToFromCredentialsModal = null

	/**
	 * Decrement update counts throughout the various menus.
	 *
	 * @since 3.9.0
	 *
	 * @param {string} upgradeType
	 */
	wp.envato.decrementCount = function (upgradeType) {
		var count
		var pluginCount
		const $adminBarUpdateCount = $('#wp-admin-bar-updates .ab-label')
		const $dashboardNavMenuUpdateCount = $('a[href="update-core.php"] .update-plugins')
		const $pluginsMenuItem = $('#menu-plugins')

		count = $adminBarUpdateCount.text()
		count = parseInt(count, 10) - 1
		if (count < 0 || isNaN(count)) {
			return
		}
		$('#wp-admin-bar-updates .ab-item').removeAttr('title')
		$adminBarUpdateCount.text(count)

		$dashboardNavMenuUpdateCount.each(function (index, elem) {
			elem.className = elem.className.replace(/count-\d+/, 'count-' + count)
		})
		$dashboardNavMenuUpdateCount.removeAttr('title')
		$dashboardNavMenuUpdateCount.find('.update-count').text(count)

		if (upgradeType === 'plugin') {
			pluginCount = $pluginsMenuItem.find('.plugin-count').eq(0).text()
			pluginCount = parseInt(pluginCount, 10) - 1
			if (pluginCount < 0 || isNaN(pluginCount)) {
				return
			}
			$pluginsMenuItem.find('.plugin-count').text(pluginCount)
			$pluginsMenuItem.find('.update-plugins').each(function (index, elem) {
				elem.className = elem.className.replace(/count-\d+/, 'count-' + pluginCount)
			})

			if (pluginCount > 0) {
				$('.subsubsub .upgrade .count').text('(' + pluginCount + ')')
			} else {
				$('.subsubsub .upgrade').remove()
			}
		}
	}

	/**
	 * Send an Ajax request to the server to update a plugin.
	 *
	 * @since 1.0.0
	 *
	 * @param {string} plugin
	 * @param {string} slug
	 */
	wp.envato.updatePlugin = function (plugin, slug) {
		let data
		const $message = $('.envato-card-' + slug).find('.update-now')
		const name = $message.data('name')

		const updatingMessage = wp.i18n.sprintf(wp.i18n.__('Updating %s...', 'envato-market'), name)
		$message.attr('aria-label', updatingMessage)

		$message.addClass('updating-message')
		if ($message.html() !== updatingMessage) {
			$message.data('originaltext', $message.html())
		}

		$message.text(updatingMessage)

		if (wp.envato.updateLock) {
			wp.envato.updateQueue.push({
				type: 'update-plugin',
				data: {
					plugin,
					slug
				}
			})
			return
		}

		wp.envato.updateLock = true

		data = {
			_ajax_nonce: wp.envato.ajaxNonce,
			plugin,
			slug,
			username: wp.envato.filesystemCredentials.ftp.username,
			password: wp.envato.filesystemCredentials.ftp.password,
			hostname: wp.envato.filesystemCredentials.ftp.hostname,
			connection_type: wp.envato.filesystemCredentials.ftp.connectionType,
			public_key: wp.envato.filesystemCredentials.ssh.publicKey,
			private_key: wp.envato.filesystemCredentials.ssh.privateKey
		}

		wp.ajax.post('update-plugin', data)
			.done(wp.envato.updateSuccess)
			.fail(wp.envato.updateError)
	}

	/**
	 * Send an Ajax request to the server to update a theme.
	 *
	 * @since 1.0.0
	 *
	 * @param {string} plugin
	 * @param {string} slug
	 */
	wp.envato.updateTheme = function (slug) {
		let data
		const $message = $('.envato-card-' + slug).find('.update-now')
		const name = $message.data('name')

		const updatingMessage = wp.i18n.sprintf(wp.i18n.__('Updating %s...', 'envato-market'), name)
		$message.attr('aria-label', updatingMessage)

		$message.addClass('updating-message')
		if ($message.html() !== updatingMessage) {
			$message.data('originaltext', $message.html())
		}

		$message.text(updatingMessage)

		if (wp.envato.updateLock) {
			wp.envato.updateQueue.push({
				type: 'update-theme',
				data: {
					theme: slug
				}
			})
			return
		}

		wp.envato.updateLock = true

		data = {
			_ajax_nonce: wp.envato.ajaxNonce,
			theme: slug,
			slug,
			username: wp.envato.filesystemCredentials.ftp.username,
			password: wp.envato.filesystemCredentials.ftp.password,
			hostname: wp.envato.filesystemCredentials.ftp.hostname,
			connection_type: wp.envato.filesystemCredentials.ftp.connectionType,
			public_key: wp.envato.filesystemCredentials.ssh.publicKey,
			private_key: wp.envato.filesystemCredentials.ssh.privateKey
		}

		wp.ajax.post('update-theme', data)
			.done(wp.envato.updateSuccess)
			.fail(wp.envato.updateError)
	}

	/**
	 * On a successful plugin update, update the UI with the result.
	 *
	 * @since 1.0.0
	 *
	 * @param {object} response
	 */
	wp.envato.updateSuccess = function (response) {
		let $card, $updateColumn, $updateMessage, $updateVersion, name, version, versionText

		$card = $('.envato-card-' + response.slug)
		$updateColumn = $card.find('.column-update')
		$updateMessage = $card.find('.update-now')
		$updateVersion = $card.find('.version')

		name = $updateMessage.data('name')
		version = $updateMessage.data('version')
		versionText = $updateVersion.attr('aria-label').replace('%s', version)

		$updateMessage.addClass('disabled')

		const updateMessage = wp.i18n.sprintf(wp.i18n.__('Updating %s...', 'envato-market'), name)
		$updateMessage.attr('aria-label', updateMessage)
		$updateVersion.text(versionText)

		$updateMessage.removeClass('updating-message').addClass('updated-message')
		$updateMessage.text(wp.i18n.__('Updated!', 'envato-market'))
		wp.a11y.speak(updateMessage)
		$updateColumn.addClass('update-complete').delay(1000).fadeOut()

		wp.envato.decrementCount('plugin')

		wp.envato.updateDoneSuccessfully = true

		/*
		 * The lock can be released since the update was successful,
		 * and any other updates can commence.
		 */
		wp.envato.updateLock = false

		$(document).trigger('envato-update-success', response)

		wp.envato.queueChecker()
	}

	/**
	 * On a plugin update error, update the UI appropriately.
	 *
	 * @since 1.0.0
	 *
	 * @param {object} response
	 */
	wp.envato.updateError = function (response) {
		let $message, name
		wp.envato.updateDoneSuccessfully = false
		if (response.errorCode && response.errorCode === 'unable_to_connect_to_filesystem' && wp.envato.shouldRequestFilesystemCredentials) {
			wp.envato.credentialError(response, 'update-plugin')
			return
		}
		$message = $('.envato-card-' + response.slug).find('.update-now')

		name = $message.data('name')
		$message.attr('aria-label', wp.i18n.__('Updating failed', 'envato-market'))

		$message.removeClass('updating-message')
		$message.html(wp.i18n.sprintf(wp.i18n.__('Updating failed %s...', 'envato-market'), typeof 'undefined' !== response.errorMessage ? response.errorMessage : response.error))

		/*
		 * The lock can be released since this failure was
		 * after the credentials form.
		 */
		wp.envato.updateLock = false

		$(document).trigger('envato-update-error', response)

		wp.envato.queueChecker()
	}

	/**
	 * Show an error message in the request for credentials form.
	 *
	 * @param {string} message
	 * @since 1.0.0
	 */
	wp.envato.showErrorInCredentialsForm = function (message) {
		const $modal = $('.notification-dialog')

		// Remove any existing error.
		$modal.find('.error').remove()

		$modal.find('h3').after('<div class="error">' + message + '</div>')
	}

	/**
	 * Events that need to happen when there is a credential error
	 *
	 * @since 1.0.0
	 */
	wp.envato.credentialError = function (response, type) {
		wp.envato.updateQueue.push({
			type,
			data: {

				// Not cool that we're depending on response for this data.
				// This would feel more whole in a view all tied together.
				plugin: response.plugin,
				slug: response.slug
			}
		})
		wp.envato.showErrorInCredentialsForm(response.error)
		wp.envato.requestFilesystemCredentials()
	}

	/**
	 * If an update job has been placed in the queue, queueChecker pulls it out and runs it.
	 *
	 * @since 1.0.0
	 */
	wp.envato.queueChecker = function () {
		let job

		if (wp.envato.updateLock || wp.envato.updateQueue.length <= 0) {
			return
		}

		job = wp.envato.updateQueue.shift()

		wp.envato.updatePlugin(job.data.plugin, job.data.slug)
	}

	/**
	 * Request the users filesystem credentials if we don't have them already.
	 *
	 * @since 1.0.0
	 */
	wp.envato.requestFilesystemCredentials = function (event) {
		if (wp.envato.updateDoneSuccessfully === false) {
			wp.envato.$elToReturnFocusToFromCredentialsModal = $(event.target)

			wp.envato.updateLock = true

			wp.envato.requestForCredentialsModalOpen()
		}
	}

	/**
	 * Keydown handler for the request for credentials modal.
	 *
	 * Close the modal when the escape key is pressed.
	 * Constrain keyboard navigation to inside the modal.
	 *
	 * @since 1.0.0
	 */
	wp.envato.keydown = function (event) {
		if (event.keyCode === 27) {
			wp.envato.requestForCredentialsModalCancel()
		} else if (event.keyCode === 9) {
			// #upgrade button must always be the last focusable element in the dialog.
			if (event.target.id === 'upgrade' && !event.shiftKey) {
				$('#hostname').focus()
				event.preventDefault()
			} else if (event.target.id === 'hostname' && event.shiftKey) {
				$('#upgrade').focus()
				event.preventDefault()
			}
		}
	}

	/**
	 * Open the request for credentials modal.
	 *
	 * @since 1.0.0
	 */
	wp.envato.requestForCredentialsModalOpen = function () {
		const $modal = $('#request-filesystem-credentials-dialog')
		$('body').addClass('modal-open')
		$modal.show()

		$modal.find('input:enabled:first').focus()
		$modal.keydown(wp.envato.keydown)
	}

	/**
	 * Close the request for credentials modal.
	 *
	 * @since 1.0.0
	 */
	wp.envato.requestForCredentialsModalClose = function () {
		$('#request-filesystem-credentials-dialog').hide()
		$('body').removeClass('modal-open')
		wp.envato.$elToReturnFocusToFromCredentialsModal.focus()
	}

	/**
	 * The steps that need to happen when the modal is canceled out
	 *
	 * @since 1.0.0
	 */
	wp.envato.requestForCredentialsModalCancel = function () {
		let slug, $message

		// No updateLock and no updateQueue means we already have cleared things up
		if (wp.envato.updateLock === false && wp.envato.updateQueue.length === 0) {
			return
		}

		slug = wp.envato.updateQueue[0].data.slug,

		// Remove the lock, and clear the queue
		wp.envato.updateLock = false
		wp.envato.updateQueue = []

		wp.envato.requestForCredentialsModalClose()
		$message = $('.envato-card-' + slug).find('.update-now')

		$message.removeClass('updating-message')
		$message.html($message.data('originaltext'))
	}
	/**
	 * Potentially add an AYS to a user attempting to leave the page
	 *
	 * If an update is on-going and a user attempts to leave the page,
	 * open an "Are you sure?" alert.
	 *
	 * @since 1.0.0
	 */

	wp.envato.beforeunload = function () {
		if (wp.envato.updateLock) {
			return wp.i18n.__('Update in progress, really leave?', 'envato-market')
		}
	}

	$(document).ready(function () {
		/*
		 * Check whether a user needs to submit filesystem credentials based on whether
		 * the form was output on the page server-side.
		 *
		 * @see {wp_print_request_filesystem_credentials_modal() in PHP}
		 */
		wp.envato.shouldRequestFilesystemCredentials = !(($('#request-filesystem-credentials-dialog').length <= 0))

		// File system credentials form submit noop-er / handler.
		$('#request-filesystem-credentials-dialog form').on('submit', function () {
			// Persist the credentials input by the user for the duration of the page load.
			wp.envato.filesystemCredentials.ftp.hostname = $('#hostname').val()
			wp.envato.filesystemCredentials.ftp.username = $('#username').val()
			wp.envato.filesystemCredentials.ftp.password = $('#password').val()
			wp.envato.filesystemCredentials.ftp.connectionType = $('input[name="connection_type"]:checked').val()
			wp.envato.filesystemCredentials.ssh.publicKey = $('#public_key').val()
			wp.envato.filesystemCredentials.ssh.privateKey = $('#private_key').val()

			wp.envato.requestForCredentialsModalClose()

			// Unlock and invoke the queue.
			wp.envato.updateLock = false
			wp.envato.queueChecker()

			return false
		})

		// Close the request credentials modal when
		$('#request-filesystem-credentials-dialog [data-js-action="close"], .notification-dialog-background').on('click', function () {
			wp.envato.requestForCredentialsModalCancel()
		})

		// Hide SSH fields when not selected
		$('#request-filesystem-credentials-dialog input[name="connection_type"]').on('change', function () {
			$(this).parents('form').find('#private_key, #public_key').parents('label').toggle(($(this).val() === 'ssh'))
		}).change()

		// Click handler for plugin updates.
		$('.envato-card.plugin').on('click', '.update-now', function (e) {
			const $button = $(e.target)
			e.preventDefault()

			if (wp.envato.shouldRequestFilesystemCredentials && !wp.envato.updateLock) {
				wp.envato.requestFilesystemCredentials(e)
			}

			wp.envato.updatePlugin($button.data('plugin'), $button.data('slug'))
		})

		// Click handler for theme updates.
		$('.envato-card.theme').on('click', '.update-now', function (e) {
			const $button = $(e.target)
			e.preventDefault()

			if (wp.envato.shouldRequestFilesystemCredentials && !wp.envato.updateLock) {
				wp.envato.requestFilesystemCredentials(e)
			}

			wp.envato.updateTheme($button.data('slug'))
		})

		// @todo
		$('#plugin_update_from_iframe').on('click', function (e) {
			let target, data

			target = window.parent === window ? null : window.parent,
			$.support.postMessage = !!window.postMessage

			if ($.support.postMessage === false || target === null || window.parent.location.pathname.indexOf('update-core.php') !== -1) {
				return
			}

			e.preventDefault()

			data = {
				action: 'updatePlugin',
				slug: $(this).data('slug')
			}

			target.postMessage(JSON.stringify(data), window.location.origin)
		})
	})

	$(window).on('message', function (e) {
		const event = e.originalEvent
		let message
		const loc = document.location
		const expectedOrigin = loc.protocol + '//' + loc.hostname

		if (event.origin !== expectedOrigin) {
			return
		}

		if (event.data) {
			try {
				message = $.parseJSON(event.data)
			} catch (error) {
				message = event.data
			}

			try {
				if (typeof message.action === 'undefined') {
					return
				}
			} catch (error) {

			}

			try {
				switch (message.action) {
				case 'decrementUpdateCount' :
					wp.envato.decrementCount(message.upgradeType)
					break
				case 'updatePlugin' :
					tb_remove()
					$('.envato-card-' + message.slug).find('h4 a').focus()
					$('.envato-card-' + message.slug).find('[data-slug="' + message.slug + '"]').trigger('click')
					break
				default:
				}
			} catch (error) {

			}
		}
	})

	$(window).on('beforeunload', wp.envato.beforeunload)
})(jQuery, window.wp, window.ajaxurl)