Jesse_Chen
46 lines
2.0 KiB
TypeScript
46 lines
2.0 KiB
TypeScript
import { randomUUID } from "node:crypto";
|
|
import type { LifeEventRevision } from "./contracts.ts";
|
|
import { assertScorerSupports, scoreabilityFor } from "./domain-scorers.ts";
|
|
|
|
export type NewEventRevision = Omit<LifeEventRevision, "id" | "revision" | "supersedesRevisionId" | "createdAt" | "scoreability"> & {
|
|
readonly scoreability?: LifeEventRevision["scoreability"];
|
|
};
|
|
|
|
export function latestEventRevisions(revisions: readonly LifeEventRevision[]): readonly LifeEventRevision[] {
|
|
const latest = new Map<string, LifeEventRevision>();
|
|
for (const revision of revisions) {
|
|
const current = latest.get(revision.eventId);
|
|
if (!current || revision.revision > current.revision) latest.set(revision.eventId, revision);
|
|
}
|
|
return [...latest.values()].sort((left, right) => left.eventId.localeCompare(right.eventId));
|
|
}
|
|
|
|
export function chronologicalEvents(events: readonly LifeEventRevision[]): readonly LifeEventRevision[] {
|
|
return [...events].sort((left, right) => left.createdAt.localeCompare(right.createdAt)
|
|
|| left.eventId.localeCompare(right.eventId)
|
|
|| left.revision - right.revision);
|
|
}
|
|
|
|
export function appendEventRevision(
|
|
revisions: readonly LifeEventRevision[],
|
|
input: NewEventRevision,
|
|
options: { readonly now?: Date; readonly id?: string } = {},
|
|
): LifeEventRevision {
|
|
const prior = revisions.filter((value) => value.eventId === input.eventId)
|
|
.sort((left, right) => right.revision - left.revision)[0] ?? null;
|
|
const revision: LifeEventRevision = {
|
|
...input,
|
|
id: options.id ?? randomUUID(),
|
|
revision: (prior?.revision ?? 0) + 1,
|
|
scoreability: input.scoreability ?? scoreabilityFor(input.domain),
|
|
supersedesRevisionId: prior?.id ?? null,
|
|
createdAt: (options.now ?? new Date()).toISOString(),
|
|
};
|
|
assertScorerSupports(revision);
|
|
return revision;
|
|
}
|
|
|
|
export function scoreableEvents(revisions: readonly LifeEventRevision[]): readonly LifeEventRevision[] {
|
|
return latestEventRevisions(revisions).filter((event) => event.scoreability === "scoreable");
|
|
}
|