slices.network
Highly ambitious ATProtocol AppView service and sdks
chadtmiller.com
1export interface DataPoint {
2 date: string;
3 count: number;
4}
5
6export function generateChartData(
7 plays: readonly {
8 readonly playedTime?: string | null;
9 readonly [key: string]: unknown;
10 }[],
11 days = 90,
12): DataPoint[] {
13 const counts = new Map<string, number>();
14 const now = new Date();
15
16 // Initialize last N days with 0 counts
17 for (let i = days - 1; i >= 0; i--) {
18 const date = new Date(now);
19 date.setDate(date.getDate() - i);
20 date.setHours(0, 0, 0, 0);
21 const dateStr = date.toISOString().split("T")[0];
22 counts.set(dateStr, 0);
23 }
24
25 // Count plays per day
26 plays.forEach((play) => {
27 if (play?.playedTime) {
28 const date = new Date(play.playedTime);
29 date.setHours(0, 0, 0, 0);
30 const dateStr = date.toISOString().split("T")[0];
31 if (counts.has(dateStr)) {
32 counts.set(dateStr, (counts.get(dateStr) || 0) + 1);
33 }
34 }
35 });
36
37 return Array.from(counts.entries())
38 .map(([date, count]) => ({ date, count }))
39 .sort((a, b) => a.date.localeCompare(b.date));
40}