113 lines
2.6 KiB
JavaScript
113 lines
2.6 KiB
JavaScript
/**
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* Frontend modal performance marks.
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*
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* Records only bounded domain/event names and timing data. Never include
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* payment credentials, order contents, identity evidence, or user payloads.
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*
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* @package AKSRT
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*/
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(function (window) {
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'use strict';
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var allowedKinds = {
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identity: true,
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badges: true,
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orders: true,
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vip: true,
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};
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var allowedEvents = {
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click: true,
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shell: true,
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'first-content': true,
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ready: true,
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'action-start': true,
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'action-end': true,
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unauthorized: true,
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error: true,
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};
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var sessions = Object.create(null);
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var sequence = 0;
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var maxSessions = 100;
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function normalize(value, fallback) {
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var normalized = String(value || fallback || '').toLowerCase().replace(/[^a-z0-9-]/g, '');
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return normalized || fallback;
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}
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function now() {
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return window.performance && typeof window.performance.now === 'function'
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? window.performance.now()
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: 0;
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}
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function markName(session, event) {
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return 'aksrt-modal-' + session.kind + '-' + session.id + '-' + event;
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}
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function emit(session, event) {
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if (!window.performance || typeof window.performance.mark !== 'function') return;
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var name = markName(session, event);
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window.performance.mark(name);
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session.marks[event] = name;
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if (typeof window.performance.measure === 'function' && session.marks.click && event !== 'click') {
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try {
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window.performance.measure(
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'aksrt-modal-' + session.kind + '-' + session.id + '-click-to-' + event,
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session.marks.click,
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name
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);
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} catch (error) {
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// A missing mark must never affect the modal interaction.
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}
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}
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}
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function start(kind) {
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var safeKind = normalize(kind, 'unknown');
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if (!allowedKinds[safeKind]) safeKind = 'unknown';
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sequence += 1;
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var id = String(sequence);
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var session = {
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id: id,
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kind: safeKind,
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startedAt: now(),
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marks: Object.create(null),
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};
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sessions[id] = session;
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emit(session, 'click');
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var ids = Object.keys(sessions);
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while (ids.length > maxSessions) {
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delete sessions[ids.shift()];
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}
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return id;
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}
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function mark(id, event) {
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var session = sessions[String(id || '')];
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var safeEvent = normalize(event, 'error');
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if (!session || !allowedEvents[safeEvent]) return;
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emit(session, safeEvent);
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}
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function finish(id) {
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mark(id, 'ready');
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}
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function fail(id) {
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mark(id, 'error');
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}
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window.AksrtModalTelemetry = {
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start: start,
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mark: mark,
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finish: finish,
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error: fail,
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};
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})(window);
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