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http://moodle.org/\n//\n// Moodle is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// Moodle is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with Moodle. If not, see <http://www.gnu.org/licenses/>.\n\n/**\n * Contain the logic for the gateways modal.\n *\n * @module core_payment/gateways_modal\n * @package core_payment\n * @copyright 2019 Shamim Rezaie <shamim@moodle.com>\n * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n */\n\nimport ModalFactory from 'core/modal_factory';\nimport Templates from 'core/templates';\nimport {get_string as getString} from 'core/str';\nimport {getAvailableGateways} from './repository';\nimport Selectors from './selectors';\nimport ModalEvents from 'core/modal_events';\nimport PaymentEvents from 'core_payment/events';\nimport {add as addToast, addToastRegion} from 'core/toast';\nimport Notification from 'core/notification';\nimport ModalGateways from './modal_gateways';\n\n/**\n * Register event listeners for the module.\n */\nconst registerEventListeners = () => {\n document.addEventListener('click', e => {\n const gatewayTrigger = e.target.closest('[data-action=\"core_payment/triggerPayment\"]');\n if (gatewayTrigger) {\n e.preventDefault();\n\n show(gatewayTrigger, {focusOnClose: e.target});\n }\n });\n};\n\n/**\n * Shows the gateway selector modal.\n *\n * @param {HTMLElement} rootNode\n * @param {Object} options - Additional options\n * @param {HTMLElement} options.focusOnClose The element to focus on when the modal is closed.\n */\nconst show = async(rootNode, {\n focusOnClose = null,\n} = {}) => {\n const modal = await ModalFactory.create({\n type: ModalGateways.TYPE,\n title: await getString('selectpaymenttype', 'core_payment'),\n body: await Templates.render('core_payment/gateways_modal', {}),\n });\n\n const rootElement = modal.getRoot()[0];\n addToastRegion(rootElement);\n\n modal.show();\n\n modal.getRoot().on(ModalEvents.hidden, () => {\n // Destroy when hidden.\n modal.destroy();\n try {\n focusOnClose.focus();\n } catch (e) {\n // eslint-disable-line\n }\n });\n\n modal.getRoot().on(PaymentEvents.proceed, (e) => {\n const gateway = (rootElement.querySelector(Selectors.values.gateway) || {value: ''}).value;\n\n if (gateway) {\n processPayment(\n gateway,\n rootNode.dataset.component,\n rootNode.dataset.paymentarea,\n rootNode.dataset.itemid,\n rootNode.dataset.description\n )\n .then(message => {\n modal.hide();\n Notification.addNotification({\n message: message,\n type: 'success',\n });\n location.reload();\n\n // The following return statement is never reached. It is put here just to make eslint happy.\n return message;\n })\n .catch(message => Notification.alert('', message));\n } else {\n // We cannot use await in the following line.\n // The reason is that we are preventing the default action of the save event being triggered,\n // therefore we cannot define the event handler function asynchronous.\n getString('nogatewayselected', 'core_payment').then(message => addToast(message)).catch();\n }\n\n e.preventDefault();\n });\n\n // Re-calculate the cost when gateway is changed.\n rootElement.addEventListener('change', e => {\n if (e.target.matches(Selectors.elements.gateways)) {\n updateCostRegion(rootElement, rootNode.dataset.cost);\n }\n });\n\n const gateways = await getAvailableGateways(rootNode.dataset.component, rootNode.dataset.paymentarea, rootNode.dataset.itemid);\n const context = {\n gateways\n };\n\n const {html, js} = await Templates.renderForPromise('core_payment/gateways', context);\n Templates.replaceNodeContents(rootElement.querySelector(Selectors.regions.gatewaysContainer), html, js);\n selectSingleGateway(rootElement);\n await updateCostRegion(rootElement, rootNode.dataset.cost);\n};\n\n/**\n * Auto-select the gateway if there is only one gateway.\n *\n * @param {HTMLElement} root An HTMLElement that contains the cost region\n */\nconst selectSingleGateway = root => {\n const gateways = root.querySelectorAll(Selectors.elements.gateways);\n\n if (gateways.length == 1) {\n gateways[0].checked = true;\n }\n};\n\n/**\n * Shows the cost of the item the user is purchasing in the cost region.\n *\n * @param {HTMLElement} root An HTMLElement that contains the cost region\n * @param {string} defaultCost The default cost that is going to be displayed if no gateway is selected\n * @returns {Promise<void>}\n */\nconst updateCostRegion = async(root, defaultCost = '') => {\n const gatewayElement = root.querySelector(Selectors.values.gateway);\n const surcharge = parseInt((gatewayElement || {dataset: {surcharge: 0}}).dataset.surcharge);\n const cost = (gatewayElement || {dataset: {cost: defaultCost}}).dataset.cost;\n\n const {html, js} = await Templates.renderForPromise('core_payment/fee_breakdown', {fee: cost, surcharge});\n Templates.replaceNodeContents(root.querySelector(Selectors.regions.costContainer), html, js);\n};\n\n/**\n * Process payment using the selected gateway.\n *\n * @param {string} gateway The gateway to be used for payment\n * @param {string} component Name of the component that the itemId belongs to\n * @param {string} paymentArea Name of the area in the component that the itemId belongs to\n * @param {number} itemId An internal identifier that is used by the component\n * @param {string} description Description of the payment\n * @returns {Promise<string>}\n */\nconst processPayment = async(gateway, component, paymentArea, itemId, description) => {\n const paymentMethod = await import(`paygw_${gateway}/gateways_modal`);\n return paymentMethod.process(component, paymentArea, itemId, description);\n};\n\n/**\n * Set up the payment actions.\n */\nexport const init = () => {\n if (!init.initialised) {\n // Event listeners should only be registered once.\n init.initialised = true;\n registerEventListeners();\n }\n};\n\n/**\n * Whether the init function was called before.\n *\n * @static\n * @type {boolean}\n */\ninit.initialised = false;\n"],"file":"gateways_modal.min.js"}