feat: Implement centralized duplicate detection utility for expenses and interests
This commit is contained in:
@@ -1,5 +1,6 @@
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import { requireSalesOrAdmin } from '~/server/utils/auth';
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import { getNocoDbConfiguration, normalizePersonName } from '~/server/utils/nocodb';
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import { findDuplicates, createExpenseConfig } from '~/server/utils/duplicate-detection';
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import type { Expense } from '~/utils/types';
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export default defineEventHandler(async (event) => {
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@@ -35,21 +36,31 @@ export default defineEventHandler(async (event) => {
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const expenses = response.list || [];
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console.log('[EXPENSES] Analyzing', expenses.length, 'expenses for duplicates');
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// Find duplicate groups
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const duplicateGroups = findDuplicateExpenses(expenses);
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// Find duplicate groups using the new centralized utility
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const duplicateConfig = createExpenseConfig();
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const duplicateGroups = findDuplicates(expenses, duplicateConfig);
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// Convert to the expected format
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const formattedGroups = duplicateGroups.map(group => ({
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id: group.id,
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expenses: group.items,
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matchReason: group.matchReason,
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confidence: group.confidence,
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masterCandidate: group.masterCandidate
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}));
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// Also find payer name variations
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const payerVariations = findPayerNameVariations(expenses);
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console.log('[EXPENSES] Found', duplicateGroups.length, 'duplicate groups and', payerVariations.length, 'payer variations');
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console.log('[EXPENSES] Found', formattedGroups.length, 'duplicate groups and', payerVariations.length, 'payer variations');
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return {
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success: true,
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data: {
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duplicateGroups,
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duplicateGroups: formattedGroups,
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payerVariations,
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totalExpenses: expenses.length,
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duplicateCount: duplicateGroups.reduce((sum, group) => sum + group.expenses.length, 0),
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duplicateCount: formattedGroups.reduce((sum, group) => sum + group.expenses.length, 0),
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dateRange: {
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start: startDate.toISOString().split('T')[0],
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end: endDate.toISOString().split('T')[0]
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@@ -74,71 +85,6 @@ export default defineEventHandler(async (event) => {
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}
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});
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/**
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* Find duplicate expenses based on multiple criteria
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*/
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function findDuplicateExpenses(expenses: any[]) {
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console.log('[EXPENSES] Starting duplicate detection for', expenses.length, 'expenses');
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const duplicateGroups: Array<{
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id: string;
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expenses: any[];
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matchReason: string;
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confidence: number;
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masterCandidate: any;
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}> = [];
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const processedIds = new Set<number>();
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let comparisons = 0;
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for (let i = 0; i < expenses.length; i++) {
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const expense1 = expenses[i];
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if (processedIds.has(expense1.Id)) continue;
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const matches = [expense1];
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let matchReasons = new Set<string>();
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for (let j = i + 1; j < expenses.length; j++) {
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const expense2 = expenses[j];
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if (processedIds.has(expense2.Id)) continue;
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const similarity = calculateExpenseSimilarity(expense1, expense2);
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comparisons++;
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console.log(`[EXPENSES] Comparing ${expense1.Id} vs ${expense2.Id}: score=${similarity.score.toFixed(3)}, threshold=0.7`);
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if (similarity.score >= 0.7) { // Lower threshold for expenses
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console.log(`[EXPENSES] MATCH FOUND! ${expense1.Id} vs ${expense2.Id} (score: ${similarity.score.toFixed(3)})`);
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console.log('[EXPENSES] Match reasons:', similarity.reasons);
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matches.push(expense2);
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processedIds.add(expense2.Id);
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similarity.reasons.forEach(r => matchReasons.add(r));
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}
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}
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if (matches.length > 1) {
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// Mark all as processed
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matches.forEach(match => processedIds.add(match.Id));
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// Determine the best master candidate
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const masterCandidate = selectMasterExpense(matches);
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duplicateGroups.push({
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id: `group_${duplicateGroups.length + 1}`,
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expenses: matches,
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matchReason: Array.from(matchReasons).join(', '),
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confidence: Math.max(...matches.slice(1).map(match =>
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calculateExpenseSimilarity(masterCandidate, match).score
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)),
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masterCandidate
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});
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}
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}
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return duplicateGroups;
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}
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/**
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* Find payer name variations (like "Abbie" vs "abbie")
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@@ -181,154 +127,3 @@ function findPayerNameVariations(expenses: any[]) {
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return variations.sort((a, b) => b.expenseCount - a.expenseCount);
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}
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/**
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* Calculate similarity between two expenses
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*/
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function calculateExpenseSimilarity(expense1: any, expense2: any) {
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const scores: Array<{ type: string; score: number; weight: number }> = [];
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const reasons: string[] = [];
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// Exact match on establishment, price, and date (highest weight for true duplicates)
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if (expense1['Establishment Name'] === expense2['Establishment Name'] &&
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expense1.Price === expense2.Price &&
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expense1.Time === expense2.Time) {
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scores.push({ type: 'exact', score: 1.0, weight: 0.5 });
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reasons.push('Exact match');
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}
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// Same payer, establishment, and price on same day (likely duplicate)
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const date1 = expense1.Time?.split('T')[0];
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const date2 = expense2.Time?.split('T')[0];
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if (normalizePersonName(expense1.Payer) === normalizePersonName(expense2.Payer) &&
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expense1['Establishment Name'] === expense2['Establishment Name'] &&
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expense1.Price === expense2.Price &&
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date1 === date2) {
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scores.push({ type: 'same-day', score: 0.95, weight: 0.4 });
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reasons.push('Same person, place, amount on same day');
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}
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// Similar establishment names with same price and payer
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if (expense1['Establishment Name'] && expense2['Establishment Name']) {
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const nameSimilarity = calculateStringSimilarity(
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expense1['Establishment Name'],
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expense2['Establishment Name']
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);
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if (nameSimilarity > 0.8 &&
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expense1.Price === expense2.Price &&
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normalizePersonName(expense1.Payer) === normalizePersonName(expense2.Payer)) {
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scores.push({ type: 'similar', score: nameSimilarity, weight: 0.3 });
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reasons.push('Similar establishment name');
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}
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}
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// Time proximity check (within 5 minutes)
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if (expense1.Time && expense2.Time) {
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const time1 = new Date(expense1.Time).getTime();
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const time2 = new Date(expense2.Time).getTime();
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const timeDiff = Math.abs(time1 - time2);
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if (timeDiff < 5 * 60 * 1000 && // 5 minutes
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expense1['Establishment Name'] === expense2['Establishment Name']) {
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scores.push({ type: 'time-proximity', score: 0.9, weight: 0.2 });
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reasons.push('Within 5 minutes at same establishment');
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}
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}
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// Calculate weighted average
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const totalWeight = scores.reduce((sum, s) => sum + s.weight, 0);
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const weightedScore = totalWeight > 0
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? scores.reduce((sum, s) => sum + (s.score * s.weight), 0) / totalWeight
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: 0;
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return {
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score: weightedScore,
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reasons,
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details: scores
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};
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}
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/**
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* Calculate string similarity using Levenshtein distance
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*/
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function calculateStringSimilarity(str1: string, str2: string): number {
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const s1 = str1.toLowerCase().trim();
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const s2 = str2.toLowerCase().trim();
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if (s1 === s2) return 1.0;
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const distance = levenshteinDistance(s1, s2);
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const maxLength = Math.max(s1.length, s2.length);
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return maxLength > 0 ? 1 - (distance / maxLength) : 0;
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}
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/**
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* Calculate Levenshtein distance between two strings
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*/
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function levenshteinDistance(str1: string, str2: string): number {
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const matrix = Array(str2.length + 1).fill(null).map(() => Array(str1.length + 1).fill(null));
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for (let i = 0; i <= str1.length; i += 1) {
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matrix[0][i] = i;
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}
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for (let j = 0; j <= str2.length; j += 1) {
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matrix[j][0] = j;
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}
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for (let j = 1; j <= str2.length; j += 1) {
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for (let i = 1; i <= str1.length; i += 1) {
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const indicator = str1[i - 1] === str2[j - 1] ? 0 : 1;
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matrix[j][i] = Math.min(
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matrix[j][i - 1] + 1, // deletion
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matrix[j - 1][i] + 1, // insertion
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matrix[j - 1][i - 1] + indicator // substitution
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);
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}
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}
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return matrix[str2.length][str1.length];
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}
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/**
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* Select the best master expense from a group
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*/
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function selectMasterExpense(expenses: any[]) {
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return expenses.reduce((best, current) => {
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const bestScore = calculateExpenseCompletenessScore(best);
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const currentScore = calculateExpenseCompletenessScore(current);
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return currentScore > bestScore ? current : best;
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});
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}
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/**
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* Calculate completeness score for an expense
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*/
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function calculateExpenseCompletenessScore(expense: any): number {
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const fields = ['Establishment Name', 'Price', 'Payer', 'Category', 'Contents', 'Time'];
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const filledFields = fields.filter(field =>
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expense[field] && expense[field].toString().trim().length > 0
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);
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let score = filledFields.length / fields.length;
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// Bonus for having contents description
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if (expense.Contents && expense.Contents.length > 10) {
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score += 0.2;
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}
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// Bonus for recent creation (more likely to be accurate)
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if (expense.CreatedAt) {
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const created = new Date(expense.CreatedAt);
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const now = new Date();
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const hoursOld = (now.getTime() - created.getTime()) / (1000 * 60 * 60);
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if (hoursOld < 24) score += 0.1;
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}
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return Math.min(score, 1.0);
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}
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@@ -1,6 +1,7 @@
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import { requireSalesOrAdmin } from '~/server/utils/auth';
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import { getNocoDbConfiguration } from '~/server/utils/nocodb';
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import { logAuditEvent } from '~/server/utils/audit-logger';
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import { findDuplicates, createInterestConfig } from '~/server/utils/duplicate-detection';
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export default defineEventHandler(async (event) => {
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console.log('[INTERESTS] Find duplicates request');
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@@ -40,16 +41,26 @@ export default defineEventHandler(async (event) => {
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const interests = response.list || [];
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console.log('[INTERESTS] Analyzing', interests.length, 'interests for duplicates');
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// Find potential duplicates
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const duplicateGroups = findDuplicateInterests(interests, threshold);
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// Find duplicate groups using the new centralized utility
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const duplicateConfig = createInterestConfig();
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const duplicateGroups = findDuplicates(interests, duplicateConfig);
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// Convert to the expected format
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const formattedGroups = duplicateGroups.map(group => ({
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id: group.id,
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interests: group.items,
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matchReason: group.matchReason,
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confidence: group.confidence,
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masterCandidate: group.masterCandidate
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}));
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console.log('[INTERESTS] Found', duplicateGroups.length, 'duplicate groups');
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console.log('[INTERESTS] Found', formattedGroups.length, 'duplicate groups');
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// Log the audit event
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await logAuditEvent(event, 'FIND_INTEREST_DUPLICATES', 'interest', {
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changes: {
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totalInterests: interests.length,
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duplicateGroups: duplicateGroups.length,
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duplicateGroups: formattedGroups.length,
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threshold,
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dateRange
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}
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@@ -58,9 +69,9 @@ export default defineEventHandler(async (event) => {
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return {
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success: true,
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data: {
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duplicateGroups,
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duplicateGroups: formattedGroups,
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totalInterests: interests.length,
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duplicateCount: duplicateGroups.reduce((sum, group) => sum + group.interests.length, 0),
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duplicateCount: formattedGroups.reduce((sum, group) => sum + group.interests.length, 0),
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threshold,
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dateRange
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}
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@@ -82,288 +93,3 @@ export default defineEventHandler(async (event) => {
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};
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}
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});
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/**
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* Find duplicate interests based on multiple criteria
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*/
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function findDuplicateInterests(interests: any[], threshold: number = 0.8) {
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console.log('[INTERESTS] Starting duplicate detection with threshold:', threshold);
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console.log('[INTERESTS] Total interests to analyze:', interests.length);
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const duplicateGroups: Array<{
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id: string;
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interests: any[];
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matchReason: string;
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confidence: number;
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masterCandidate: any;
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}> = [];
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const processedIds = new Set<number>();
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let comparisons = 0;
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for (let i = 0; i < interests.length; i++) {
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const interest1 = interests[i];
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if (processedIds.has(interest1.Id)) continue;
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const matches = [interest1];
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for (let j = i + 1; j < interests.length; j++) {
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const interest2 = interests[j];
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if (processedIds.has(interest2.Id)) continue;
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const similarity = calculateSimilarity(interest1, interest2);
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comparisons++;
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console.log(`[INTERESTS] Comparing ${interest1.Id} vs ${interest2.Id}: score=${similarity.score.toFixed(3)}, threshold=${threshold}`);
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if (similarity.score >= threshold) {
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console.log(`[INTERESTS] MATCH FOUND! ${interest1.Id} vs ${interest2.Id} (score: ${similarity.score.toFixed(3)})`);
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console.log('[INTERESTS] Match details:', similarity.details);
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matches.push(interest2);
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processedIds.add(interest2.Id);
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}
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}
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if (matches.length > 1) {
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console.log(`[INTERESTS] Creating duplicate group with ${matches.length} matches`);
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// Mark all as processed
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matches.forEach(match => processedIds.add(match.Id));
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// Determine the best master candidate (most complete record)
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const masterCandidate = selectMasterCandidate(matches);
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// Calculate average confidence
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const avgConfidence = matches.slice(1).reduce((sum, match) => {
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return sum + calculateSimilarity(masterCandidate, match).score;
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}, 0) / (matches.length - 1);
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duplicateGroups.push({
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id: `group_${duplicateGroups.length + 1}`,
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interests: matches,
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matchReason: generateMatchReason(matches),
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confidence: avgConfidence,
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masterCandidate
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});
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}
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}
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console.log(`[INTERESTS] Completed ${comparisons} comparisons, found ${duplicateGroups.length} duplicate groups`);
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return duplicateGroups;
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}
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/**
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* Calculate similarity between two interests
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*/
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function calculateSimilarity(interest1: any, interest2: any) {
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const scores: Array<{ type: string; score: number; weight: number }> = [];
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console.log(`[INTERESTS] Calculating similarity between:`, {
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id1: interest1.Id,
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name1: interest1['Full Name'],
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email1: interest1['Email Address'],
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phone1: interest1['Phone Number'],
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id2: interest2.Id,
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name2: interest2['Full Name'],
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email2: interest2['Email Address'],
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phone2: interest2['Phone Number']
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});
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// Email similarity (highest weight) - exact match required
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if (interest1['Email Address'] && interest2['Email Address']) {
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const email1 = normalizeEmail(interest1['Email Address']);
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const email2 = normalizeEmail(interest2['Email Address']);
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const emailScore = email1 === email2 ? 1.0 : 0.0;
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scores.push({ type: 'email', score: emailScore, weight: 0.5 });
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console.log(`[INTERESTS] Email comparison: "${email1}" vs "${email2}" = ${emailScore}`);
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}
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// Phone similarity - exact match on normalized numbers
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if (interest1['Phone Number'] && interest2['Phone Number']) {
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const phone1 = normalizePhone(interest1['Phone Number']);
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const phone2 = normalizePhone(interest2['Phone Number']);
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const phoneScore = phone1 === phone2 && phone1.length >= 8 ? 1.0 : 0.0; // Require at least 8 digits
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scores.push({ type: 'phone', score: phoneScore, weight: 0.4 });
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console.log(`[INTERESTS] Phone comparison: "${phone1}" vs "${phone2}" = ${phoneScore}`);
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}
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// Name similarity - fuzzy matching
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if (interest1['Full Name'] && interest2['Full Name']) {
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const nameScore = calculateNameSimilarity(interest1['Full Name'], interest2['Full Name']);
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scores.push({ type: 'name', score: nameScore, weight: 0.3 });
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console.log(`[INTERESTS] Name comparison: "${interest1['Full Name']}" vs "${interest2['Full Name']}" = ${nameScore.toFixed(3)}`);
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}
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// Address similarity
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if (interest1.Address && interest2.Address) {
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const addressScore = calculateStringSimilarity(interest1.Address, interest2.Address);
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scores.push({ type: 'address', score: addressScore, weight: 0.2 });
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console.log(`[INTERESTS] Address comparison: ${addressScore.toFixed(3)}`);
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}
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// Special case: if we have exact email OR phone match, give high score regardless of other fields
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const hasExactEmailMatch = scores.find(s => s.type === 'email' && s.score === 1.0);
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const hasExactPhoneMatch = scores.find(s => s.type === 'phone' && s.score === 1.0);
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if (hasExactEmailMatch || hasExactPhoneMatch) {
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console.log('[INTERESTS] Exact email or phone match found - high confidence');
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return {
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score: 0.95, // High confidence for exact email/phone match
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details: scores
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};
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}
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// Calculate weighted average for other cases
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const totalWeight = scores.reduce((sum, s) => sum + s.weight, 0);
|
||||
const weightedScore = scores.reduce((sum, s) => sum + (s.score * s.weight), 0) / (totalWeight || 1);
|
||||
|
||||
console.log(`[INTERESTS] Weighted score: ${weightedScore.toFixed(3)} (weights: ${totalWeight})`);
|
||||
|
||||
return {
|
||||
score: weightedScore,
|
||||
details: scores
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Normalize email for comparison
|
||||
*/
|
||||
function normalizeEmail(email: string): string {
|
||||
return email.toLowerCase().trim();
|
||||
}
|
||||
|
||||
/**
|
||||
* Normalize phone number for comparison
|
||||
*/
|
||||
function normalizePhone(phone: string): string {
|
||||
return phone.replace(/\D/g, ''); // Remove all non-digits
|
||||
}
|
||||
|
||||
/**
|
||||
* Calculate name similarity using Levenshtein distance
|
||||
*/
|
||||
function calculateNameSimilarity(name1: string, name2: string): number {
|
||||
const str1 = name1.toLowerCase().trim();
|
||||
const str2 = name2.toLowerCase().trim();
|
||||
|
||||
if (str1 === str2) return 1.0;
|
||||
|
||||
const distance = levenshteinDistance(str1, str2);
|
||||
const maxLength = Math.max(str1.length, str2.length);
|
||||
|
||||
return maxLength > 0 ? 1 - (distance / maxLength) : 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Calculate string similarity using Levenshtein distance
|
||||
*/
|
||||
function calculateStringSimilarity(str1: string, str2: string): number {
|
||||
const s1 = str1.toLowerCase().trim();
|
||||
const s2 = str2.toLowerCase().trim();
|
||||
|
||||
if (s1 === s2) return 1.0;
|
||||
|
||||
const distance = levenshteinDistance(s1, s2);
|
||||
const maxLength = Math.max(s1.length, s2.length);
|
||||
|
||||
return maxLength > 0 ? 1 - (distance / maxLength) : 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Calculate Levenshtein distance between two strings
|
||||
*/
|
||||
function levenshteinDistance(str1: string, str2: string): number {
|
||||
const matrix = Array(str2.length + 1).fill(null).map(() => Array(str1.length + 1).fill(null));
|
||||
|
||||
for (let i = 0; i <= str1.length; i += 1) {
|
||||
matrix[0][i] = i;
|
||||
}
|
||||
|
||||
for (let j = 0; j <= str2.length; j += 1) {
|
||||
matrix[j][0] = j;
|
||||
}
|
||||
|
||||
for (let j = 1; j <= str2.length; j += 1) {
|
||||
for (let i = 1; i <= str1.length; i += 1) {
|
||||
const indicator = str1[i - 1] === str2[j - 1] ? 0 : 1;
|
||||
matrix[j][i] = Math.min(
|
||||
matrix[j][i - 1] + 1, // deletion
|
||||
matrix[j - 1][i] + 1, // insertion
|
||||
matrix[j - 1][i - 1] + indicator // substitution
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
return matrix[str2.length][str1.length];
|
||||
}
|
||||
|
||||
/**
|
||||
* Select the best master candidate from a group of duplicates
|
||||
*/
|
||||
function selectMasterCandidate(interests: any[]) {
|
||||
return interests.reduce((best, current) => {
|
||||
const bestScore = calculateCompletenessScore(best);
|
||||
const currentScore = calculateCompletenessScore(current);
|
||||
|
||||
return currentScore > bestScore ? current : best;
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Calculate completeness score for an interest record
|
||||
*/
|
||||
function calculateCompletenessScore(interest: any): number {
|
||||
const fields = ['Full Name', 'Email Address', 'Phone Number', 'Address', 'Extra Comments', 'Berth Size Desired'];
|
||||
const filledFields = fields.filter(field =>
|
||||
interest[field] && interest[field].toString().trim().length > 0
|
||||
);
|
||||
|
||||
let score = filledFields.length / fields.length;
|
||||
|
||||
// Bonus for recent creation
|
||||
if (interest['Created At']) {
|
||||
const created = new Date(interest['Created At']);
|
||||
const now = new Date();
|
||||
const daysOld = (now.getTime() - created.getTime()) / (1000 * 60 * 60 * 24);
|
||||
|
||||
// More recent records get a small bonus
|
||||
if (daysOld < 30) score += 0.1;
|
||||
else if (daysOld < 90) score += 0.05;
|
||||
}
|
||||
|
||||
return score;
|
||||
}
|
||||
|
||||
/**
|
||||
* Generate a descriptive match reason
|
||||
*/
|
||||
function generateMatchReason(interests: any[]): string {
|
||||
const reasons = [];
|
||||
|
||||
// Check for exact email matches
|
||||
const emails = interests.map(i => i['Email Address']).filter(Boolean);
|
||||
if (emails.length > 1 && new Set(emails.map(e => normalizeEmail(e))).size === 1) {
|
||||
reasons.push('Same email address');
|
||||
}
|
||||
|
||||
// Check for exact phone matches
|
||||
const phones = interests.map(i => i['Phone Number']).filter(Boolean);
|
||||
if (phones.length > 1 && new Set(phones.map(p => normalizePhone(p))).size === 1) {
|
||||
reasons.push('Same phone number');
|
||||
}
|
||||
|
||||
// Check for similar names
|
||||
const names = interests.map(i => i['Full Name']).filter(Boolean);
|
||||
if (names.length > 1) {
|
||||
const normalizedNames = names.map(n => n.toLowerCase().trim());
|
||||
if (new Set(normalizedNames).size === 1) {
|
||||
reasons.push('Same name');
|
||||
} else {
|
||||
reasons.push('Similar names');
|
||||
}
|
||||
}
|
||||
|
||||
return reasons.length > 0 ? reasons.join(', ') : 'Multiple matching criteria';
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user