ed3a0d3ea3
Vanilla HTML/JS/CSS PWA with Dexie offline-first sync, Hono+SQLite backend, served via nginx reverse-proxy. Two seed goals (no-sugar, no-social-media) for users ray and cer. Local dev runs at https://raycer.test via the shared Traefik proxy. Production deploys to https://raycer.altweb.me on cool2026/personal via docker-compose.coolify.yaml — see deploy/COOLIFY.md.
101 lines
2.6 KiB
JavaScript
101 lines
2.6 KiB
JavaScript
/* Pure helpers for streaks, totals, and the goal-window countdown. */
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const DAY_MS = 86_400_000;
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export function todayISO(d = new Date()) {
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const y = d.getFullYear();
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const m = String(d.getMonth() + 1).padStart(2, '0');
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const day = String(d.getDate()).padStart(2, '0');
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return `${y}-${m}-${day}`;
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}
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export function isoToDate(iso) {
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const [y, m, d] = iso.split('-').map(Number);
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return new Date(y, m - 1, d);
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}
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export function addDays(iso, n) {
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const d = isoToDate(iso);
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d.setDate(d.getDate() + n);
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return todayISO(d);
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}
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export function eachDay(startISO, endISO) {
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const out = [];
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let cur = startISO;
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while (cur <= endISO) {
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out.push(cur);
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cur = addDays(cur, 1);
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}
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return out;
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}
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export function clampWindowEnd(goal, refISO = todayISO()) {
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return goal.end_date < refISO ? goal.end_date : refISO;
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}
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export function daysRemaining(endISO, refISO = todayISO()) {
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if (endISO < refISO) return 0;
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return Math.round((isoToDate(endISO) - isoToDate(refISO)) / DAY_MS);
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}
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/**
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* Build a Set of completed ISO dates for (user, goal) from a flat completions array.
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*/
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export function completedSet(completions, user, goalId) {
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const set = new Set();
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for (const c of completions) {
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if (c.user === user && c.goal_id === goalId && c.completed) set.add(c.date);
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}
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return set;
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}
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/**
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* Current streak ending at (or just before) `refISO`, walking back day-by-day
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* while completions are present, never crossing the goal start.
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*/
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export function currentStreak(completedSetForUser, goal, refISO = todayISO()) {
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const start = goal.start_date;
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const end = clampWindowEnd(goal, refISO);
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if (refISO < start) return 0;
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let cur = end;
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let n = 0;
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while (cur >= start && completedSetForUser.has(cur)) {
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n += 1;
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cur = addDays(cur, -1);
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}
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return n;
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}
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export function longestStreak(completedSetForUser, goal, refISO = todayISO()) {
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const start = goal.start_date;
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const end = clampWindowEnd(goal, refISO);
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if (end < start) return 0;
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let best = 0;
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let run = 0;
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for (const d of eachDay(start, end)) {
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if (completedSetForUser.has(d)) {
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run += 1;
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if (run > best) best = run;
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} else {
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run = 0;
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}
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}
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return best;
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}
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export function totalCompleted(completedSetForUser, goal, refISO = todayISO()) {
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const start = goal.start_date;
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const end = clampWindowEnd(goal, refISO);
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if (end < start) return 0;
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let n = 0;
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for (const d of eachDay(start, end)) {
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if (completedSetForUser.has(d)) n += 1;
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}
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return n;
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}
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export function windowLength(goal) {
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return eachDay(goal.start_date, goal.end_date).length;
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}
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