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Marc-André Bombeck
4897752c3c
Portable files exported before v1.39.1 carry no creation date for a medication, so the restore stamped the restore time. The dose history reads that date as the day the medication began to exist, and every miss before it, including the day before the restore, dropped out of the record. When the file has no creation date, the restore now uses the earliest thing the file records for the medication: its first dose (scheduled, taken or written), the start of its first schedule revision, its course start, its first pause, dose change or side effect, and never a date after the restore. A file that records nothing about the medication keeps the old default.
65 lines
2.7 KiB
TypeScript
65 lines
2.7 KiB
TypeScript
/**
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* The creation date a restored medication gets when the file does not say.
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*
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* Portable files written before v1.39.1 carry no `createdAt` for a
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* medication, and the restore used to let the column default to the moment
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* of the restore. The dose history reads that date as the day the
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* medication began to exist: `reconstructDoseHistory` and migration 0350
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* treat every slot before it as belonging to no medication, so the misses in
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* the day before the restore (and everything earlier) disappeared from the
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* record.
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*
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* The earliest thing the file itself says happened to the medication is the
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* closest honest stand-in: its first recorded dose (scheduled, taken or
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* written), the start of its first schedule revision, its course start, its
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* first pause, dose change or side effect. Never later than the restore:
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* a course that starts next week was still created by now.
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*/
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import type { BackupPayload } from "@/lib/validations/backup";
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type BackupMedication = BackupPayload["medications"][number];
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type BackupIntakeEvent = BackupPayload["intakeEvents"][number];
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/**
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* The file's own creation date when it has one; otherwise the earliest
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* evidence, capped at `now`; otherwise `undefined`, which leaves the column
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* to its default (the restore time) because the file says nothing at all.
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*/
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export function restoredMedicationCreatedAt(
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medication: BackupMedication,
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intakeEvents: readonly BackupIntakeEvent[],
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now: Date,
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): Date | undefined {
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if (medication.createdAt) return new Date(medication.createdAt);
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const instants: Array<string | null | undefined> = [];
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for (const event of intakeEvents) {
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// Mirrors how the restore attaches an event: by id when the file names
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// one, by name otherwise.
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const belongs = event.medicationId
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? event.medicationId === medication.id ||
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(!medication.id && event.medication === medication.name)
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: event.medication === medication.name;
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if (!belongs) continue;
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instants.push(event.scheduledFor, event.takenAt, event.createdAt);
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}
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for (const revision of medication.scheduleRevisions) {
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instants.push(revision.validFrom);
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}
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instants.push(medication.startsOn);
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for (const era of medication.pauseEras) instants.push(era.pausedAt);
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for (const change of medication.doseChanges) {
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instants.push(change.effectiveFrom);
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}
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for (const effect of medication.sideEffects) instants.push(effect.occurredAt);
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let earliest = Number.POSITIVE_INFINITY;
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for (const instant of instants) {
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if (!instant) continue;
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const ms = Date.parse(instant);
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if (Number.isFinite(ms) && ms < earliest) earliest = ms;
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}
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if (!Number.isFinite(earliest)) return undefined;
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return new Date(Math.min(earliest, now.getTime()));
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}
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