Bohdan Triapitsyn
f884919165
- Force notification summaries to avoid markdown formatting - Normalize generated notification text before system display - Cover plain-text notification formatting with tests
71 lines
2.4 KiB
JavaScript
71 lines
2.4 KiB
JavaScript
const DEFAULT_NOTIFICATION_MESSAGE_MAX_LENGTH = 250;
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const DEFAULT_NOTIFICATION_SUMMARY_THRESHOLD = 200;
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const DEFAULT_NOTIFICATION_SUMMARY_LENGTH = 100;
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const resolvePositiveNumber = (value, fallback) => {
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if (typeof value !== 'number' || !Number.isFinite(value) || value <= 0) {
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return fallback;
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}
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return value;
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};
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const normalizeNotificationPlainText = (text) => {
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if (typeof text !== 'string') {
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return '';
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}
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return text
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.replace(/```[\s\S]*?```/g, ' ')
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.replace(/`([^`]*)`/g, '$1')
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.replace(/^[\t ]*[-*+]\s+/gm, '')
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.replace(/^#{1,6}\s+/gm, '')
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.replace(/\*\*(.*?)\*\*/g, '$1')
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.replace(/__(.*?)__/g, '$1')
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.replace(/\*(.*?)\*/g, '$1')
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.replace(/_(.*?)_/g, '$1')
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.replace(/\[(.*?)\]\((.*?)\)/g, '$1')
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.replace(/\s*\n\s*/g, ' ')
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.replace(/\s+/g, ' ')
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.trim();
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};
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export const truncateNotificationText = (text, maxLength = DEFAULT_NOTIFICATION_MESSAGE_MAX_LENGTH) => {
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if (typeof text !== 'string') {
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return '';
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}
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const safeMaxLength = resolvePositiveNumber(maxLength, DEFAULT_NOTIFICATION_MESSAGE_MAX_LENGTH);
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if (text.length <= safeMaxLength) {
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return text;
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}
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return `${text.slice(0, safeMaxLength)}...`;
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};
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export const prepareNotificationLastMessage = async ({ message, settings, summarize }) => {
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const originalMessage = typeof message === 'string' ? message : '';
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if (!originalMessage) {
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return '';
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}
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const shouldSummarize = settings?.summarizeLastMessage === true && typeof summarize === 'function';
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const summaryThreshold = resolvePositiveNumber(settings?.summaryThreshold, DEFAULT_NOTIFICATION_SUMMARY_THRESHOLD);
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const summaryLength = resolvePositiveNumber(settings?.summaryLength, DEFAULT_NOTIFICATION_SUMMARY_LENGTH);
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const maxLastMessageLength = resolvePositiveNumber(settings?.maxLastMessageLength, DEFAULT_NOTIFICATION_MESSAGE_MAX_LENGTH);
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let messageForNotification = originalMessage;
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if (shouldSummarize && originalMessage.length > summaryThreshold) {
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try {
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const summary = await summarize(originalMessage, summaryLength);
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if (typeof summary === 'string' && summary.trim().length > 0) {
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messageForNotification = summary;
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}
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} catch {
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messageForNotification = originalMessage;
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}
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}
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const plainTextMessage = normalizeNotificationPlainText(messageForNotification) || normalizeNotificationPlainText(originalMessage);
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return truncateNotificationText(plainTextMessage, maxLastMessageLength);
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};
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