1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
import { describe, it, expect } from 'vitest';
import {
computeRoutineState,
computeHealthScore,
computeHealthSeries,
computeProjectHealthSeries,
parseIntervalToDays,
} from './routine-metrics';
const CREATED = '2026-09-01T00:00:00.000Z';
const created = Temporal.Instant.from(CREATED);
const plusDays = (base: Temporal.Instant, days: number): Temporal.Instant =>
base.toZonedDateTimeISO('UTC').add({ days }).toInstant();
/** ISO stamp n days after the given stamp. */
const isoPlusDays = (iso: string, days: number): string =>
Temporal.Instant.from(iso)
.toZonedDateTimeISO('UTC')
.add({ days })
.toInstant()
.toString({ smallestUnit: 'millisecond' });
const routine = {
id: 1,
version: 1,
name: 'clean kitchen',
frequencyDays: 7,
createdAt: CREATED,
};
describe('computeRoutineState', () => {
it('is due immediately at creation when never done (created_at = due)', () => {
const now = plusDays(created, 3);
const state = computeRoutineState(routine, [], now);
expect(state.status).toBe('due');
expect(state.overdueDays).toBe(3);
expect(state.health).toBe(79); // 3/7 of a period overdue
expect(state.dueAt).toBe(CREATED);
});
it('uses the last completion as reference once done', () => {
const doneAt = isoPlusDays(CREATED, 5);
const now = plusDays(Temporal.Instant.from(doneAt), 2);
const state = computeRoutineState(routine, [{ routineId: 1, doneAt }], now);
expect(state.lastDoneAt).toBe(doneAt);
expect(state.status).toBe('ok');
});
it('is due the calendar day after completion for a daily routine', () => {
const daily = { ...routine, frequencyDays: 1 };
const doneAt = '2026-09-07T20:00:00.000Z'; // yesterday evening
const now = Temporal.Instant.from('2026-09-08T08:00:00.000Z'); // <24h later
const state = computeRoutineState(daily, [{ routineId: 1, doneAt }], now);
expect(state.status).toBe('due');
});
it('a daily done yesterday is late tomorrow, not today', () => {
const daily = { ...routine, frequencyDays: 1 };
const doneAt = '2026-09-07T20:00:00.000Z'; // yesterday evening
const completions = [{ routineId: 1, doneAt }];
const today = computeRoutineState(
daily,
completions,
Temporal.Instant.from('2026-09-08T20:00:00.000Z'),
);
expect(today.status).toBe('due');
const tomorrow = computeRoutineState(
daily,
completions,
Temporal.Instant.from('2026-09-09T20:00:00.000Z'),
);
expect(tomorrow.status).toBe('late');
});
it('is ok later the same day it was done for a daily routine', () => {
const daily = { ...routine, frequencyDays: 1 };
const doneAt = '2026-09-08T08:00:00.000Z';
const now = Temporal.Instant.from('2026-09-08T20:00:00.000Z');
const state = computeRoutineState(daily, [{ routineId: 1, doneAt }], now);
expect(state.status).toBe('ok');
});
});
describe('computeHealthSeries', () => {
it('decays from 100 at creation to 0 two periods overdue when never done', () => {
const now = plusDays(created, 22);
const series = computeHealthSeries(routine, [], now);
expect(series[0].health).toBe(100);
const at8d = series.find(
(p) => p.at === plusDays(created, 8).epochMilliseconds,
);
expect(at8d?.health).toBe(43); // 8/7 of a period overdue
const last = series[series.length - 1];
expect(last.at).toBe(now.epochMilliseconds);
expect(last.health).toBe(0); // more than two full periods overdue
});
it('resets to 100 right after a completion, then decays again (sawtooth)', () => {
const doneAt = plusDays(created, 5);
const now = plusDays(doneAt, 13); // 13 days after the completion
const doneAtIso = doneAt.toString({ smallestUnit: 'millisecond' });
const series = computeHealthSeries(
routine,
[{ routineId: 1, doneAt: doneAtIso }],
now,
);
const rightAfter = series.find((p) => p.at >= doneAt.epochMilliseconds);
expect(rightAfter?.health).toBe(100);
// 8 days after the completion: 1 day into the 7-day period overdue.
const at8d = series.find(
(p) => p.at === plusDays(doneAt, 8).epochMilliseconds,
);
expect(at8d?.health).toBe(93);
});
it('a second completion resets the decay again', () => {
const first = plusDays(created, 3);
const second = plusDays(created, 10);
const now = plusDays(created, 11);
const stamp = (at: Temporal.Instant): string =>
at.toString({ smallestUnit: 'millisecond' });
const series = computeHealthSeries(
routine,
[
{ routineId: 1, doneAt: stamp(first) },
{ routineId: 1, doneAt: stamp(second) },
],
now,
);
// Just after the second completion the routine is back at full health.
const nearEnd = series[series.length - 1];
expect(nearEnd.health).toBe(100);
});
});
describe('computeProjectHealthSeries', () => {
it('is empty with no routines', () => {
expect(computeProjectHealthSeries([], [], created)).toEqual([]);
});
it('averages per-routine health and ends at the current score', () => {
const second = { ...routine, id: 2, name: 'read' };
const doneAt = plusDays(created, 5);
const now = plusDays(created, 8);
const doneAtIso = doneAt.toString({ smallestUnit: 'millisecond' });
const series = computeProjectHealthSeries(
[routine, second],
[{ routineId: 2, doneAt: doneAtIso }],
now,
);
const states = [
computeRoutineState(routine, [], now),
computeRoutineState(second, [{ routineId: 2, doneAt: doneAtIso }], now),
];
const last = series[series.length - 1];
expect(last.at).toBe(now.epochMilliseconds);
expect(last.health).toBe(computeHealthScore(states));
});
it('only counts routines alive that day', () => {
const late = {
...routine,
id: 2,
name: 'latecomer',
createdAt: isoPlusDays(CREATED, 10),
};
const now = plusDays(created, 11);
const series = computeProjectHealthSeries([routine, late], [], now);
const beforeLate = series.find(
(p) => p.at === plusDays(created, 5).epochMilliseconds,
);
const single = computeHealthSeries(routine, [], plusDays(created, 5));
expect(beforeLate?.health).toBe(single[single.length - 1].health);
});
});
describe('parseIntervalToDays', () => {
it('converts units to days', () => {
expect(parseIntervalToDays('1d')).toBe(1);
expect(parseIntervalToDays('2w')).toBe(14);
expect(parseIntervalToDays('3m')).toBe(90);
expect(parseIntervalToDays('1y')).toBe(365);
});
it('accepts whitespace and uppercase', () => {
expect(parseIntervalToDays(' 2W ')).toBe(14);
});
it('rejects invalid input', () => {
expect(parseIntervalToDays('2')).toBeNull();
expect(parseIntervalToDays('w')).toBeNull();
expect(parseIntervalToDays('2x')).toBeNull();
expect(parseIntervalToDays('-1d')).toBeNull();
expect(parseIntervalToDays('')).toBeNull();
});
});
describe('computeHealthScore', () => {
it('is 100 with no routines', () => {
expect(computeHealthScore([])).toBe(100);
});
it('averages routine healths', () => {
const now = plusDays(created, 8);
const a = computeRoutineState(routine, [], now); // overdue 1 day
const b = computeRoutineState(routine, [], plusDays(created, 3));
expect(computeHealthScore([a, b])).toBe(
Math.round((a.health + b.health) / 2),
);
});
});
|
