import { zoneToToolSuffix } from './zones.js';
function isRecord(value: unknown): value is Record<string, unknown> {
return typeof value === 'object' && value !== null;
}
function toNumber(value: unknown): number | undefined {
if (typeof value === 'number' && Number.isFinite(value)) {
return value;
}
if (typeof value === 'string') {
const n = Number(value);
return Number.isFinite(n) ? n : undefined;
}
return undefined;
}
export interface ExtractedItems {
itemsKey?: string;
items: unknown[];
// AroFlo fields in zoneresponse when present.
pageNumber?: number;
currentPageResults?: number;
maxPageResults?: number;
}
export function extractZoneItems(zone: string, data: unknown): ExtractedItems {
if (!isRecord(data)) {
return { items: [] };
}
const zr = data['zoneresponse'];
if (!isRecord(zr)) {
return { items: [] };
}
const pageNumber = toNumber(zr['pagenumber']);
const currentPageResults = toNumber(zr['currentpageresults']);
const maxPageResults = toNumber(zr['maxpageresults']);
const expectedKey = zoneToToolSuffix(zone);
const expectedVal = zr[expectedKey];
if (Array.isArray(expectedVal)) {
return {
itemsKey: expectedKey,
items: expectedVal,
pageNumber,
currentPageResults,
maxPageResults
};
}
const arrayKeys = Object.entries(zr)
.filter(([, v]) => Array.isArray(v))
.map(([k]) => k);
if (arrayKeys.length === 1) {
const k = arrayKeys[0]!;
return {
itemsKey: k,
items: zr[k] as unknown[],
pageNumber,
currentPageResults,
maxPageResults
};
}
if (arrayKeys.length > 1) {
const k = arrayKeys[0]!;
return {
itemsKey: k,
items: zr[k] as unknown[],
pageNumber,
currentPageResults,
maxPageResults
};
}
return { items: [], pageNumber, currentPageResults, maxPageResults };
}
