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126 lines
4.5 KiB
TypeScript
126 lines
4.5 KiB
TypeScript
import type { DateRange } from './types';
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export type DateBucket = 'day' | 'week' | 'month';
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const MS_PER_DAY = 24 * 60 * 60 * 1000;
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export const getRangeDayCount = (dateRange: DateRange) => (
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Math.max(1, Math.ceil((dateRange.end.getTime() - dateRange.start.getTime()) / MS_PER_DAY) + 1)
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);
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export const getAutoDateBucket = (dateRange: DateRange): DateBucket => {
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const days = getRangeDayCount(dateRange);
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if (days > 365) return 'month';
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if (days > 90) return 'week';
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return 'day';
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};
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export const parseChartDate = (value: string): Date | null => {
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if (!value) return null;
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const isoMatch = value.match(/^(\d{4})-(\d{2})-(\d{2})$/);
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if (isoMatch) {
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const [, year, month, day] = isoMatch;
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return new Date(Number(year), Number(month) - 1, Number(day));
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}
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const localMatch = value.match(/^(\d{2})\/(\d{2})\/(\d{4})$/);
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if (localMatch) {
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const [, day, month, year] = localMatch;
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return new Date(Number(year), Number(month) - 1, Number(day));
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}
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const dashedLocalMatch = value.match(/^(\d{2})-(\d{2})-(\d{4})$/);
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if (dashedLocalMatch) {
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const [, day, month, year] = dashedLocalMatch;
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return new Date(Number(year), Number(month) - 1, Number(day));
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}
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const date = new Date(value);
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return Number.isNaN(date.getTime()) ? null : date;
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};
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export const formatChartDateKey = (date: Date) => {
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const year = date.getFullYear();
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const month = String(date.getMonth() + 1).padStart(2, '0');
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const day = String(date.getDate()).padStart(2, '0');
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return `${year}-${month}-${day}`;
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};
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const startOfWeek = (date: Date) => {
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const nextDate = new Date(date);
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const day = nextDate.getDay();
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const offset = day === 0 ? -6 : 1 - day;
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nextDate.setDate(nextDate.getDate() + offset);
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nextDate.setHours(0, 0, 0, 0);
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return nextDate;
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};
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export const getDateBucketKey = (value: string, bucket: DateBucket) => {
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const date = parseChartDate(value);
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if (!date) return value;
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if (bucket === 'day') return formatChartDateKey(date);
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if (bucket === 'week') return formatChartDateKey(startOfWeek(date));
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return `${date.getFullYear()}-${String(date.getMonth() + 1).padStart(2, '0')}`;
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};
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export const formatDateBucketLabel = (value: string, bucket: DateBucket) => {
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if (bucket === 'month') {
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const match = value.match(/^(\d{4})-(\d{2})$/);
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if (!match) return value;
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const [, year, month] = match;
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return new Intl.DateTimeFormat('pt-BR', { month: 'short', year: '2-digit' }).format(new Date(Number(year), Number(month) - 1, 1));
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}
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const date = parseChartDate(value);
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if (!date) return value;
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if (bucket === 'week') {
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const endDate = new Date(date);
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endDate.setDate(endDate.getDate() + 6);
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const formatter = new Intl.DateTimeFormat('pt-BR', { day: '2-digit', month: '2-digit' });
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return `${formatter.format(date)}-${formatter.format(endDate)}`;
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}
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return new Intl.DateTimeFormat('pt-BR', { day: '2-digit', month: '2-digit' }).format(date);
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};
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export const formatDateBucketLongLabel = (value: string, bucket: DateBucket) => {
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if (bucket === 'month') {
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const match = value.match(/^(\d{4})-(\d{2})$/);
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if (!match) return value;
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const [, year, month] = match;
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return new Intl.DateTimeFormat('pt-BR', { month: 'long', year: 'numeric' }).format(new Date(Number(year), Number(month) - 1, 1));
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}
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const date = parseChartDate(value);
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if (!date) return value;
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if (bucket === 'week') {
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const endDate = new Date(date);
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endDate.setDate(endDate.getDate() + 6);
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const formatter = new Intl.DateTimeFormat('pt-BR', { day: '2-digit', month: '2-digit', year: 'numeric' });
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return `${formatter.format(date)} - ${formatter.format(endDate)}`;
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}
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return new Intl.DateTimeFormat('pt-BR', { day: '2-digit', month: '2-digit', year: 'numeric' }).format(date);
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};
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export const getMovingAverageWindow = (bucket: DateBucket) => {
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if (bucket === 'day') return 7;
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if (bucket === 'week') return 4;
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return 3;
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};
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export const averageRecentValues = (values: number[], endIndex: number, windowSize: number) => {
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const startIndex = Math.max(0, endIndex - windowSize + 1);
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const windowValues = values.slice(startIndex, endIndex + 1);
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if (!windowValues.length) return 0;
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return windowValues.reduce((total, value) => total + value, 0) / windowValues.length;
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};
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export const normalizeUnknownLabel = (value: string, fallback: string) => {
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const normalized = String(value || '').replace(/\s+/g, ' ').trim();
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if (!normalized) return fallback;
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if (/^(0|null|undefined|unknown|n\/a|-|sem nome)$/i.test(normalized)) return fallback;
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return normalized;
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};
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