https://uvidnova.netlify.app/js/data-loader.js

1/**
2 * Loads asset data from /data/assets/.
3 * loadAssetsForMap()  — returns slim summary objects from index.json (1 request).
4 * loadAsset(id)       — returns full asset record on demand (1 request per call).
5 * loadAllAssets()     — legacy: fetches every full asset file (100 requests, kept for finance-wizard).
6 */
7
8const BASE = '';
9
10export async function loadAssetsIndex() {
11  const res = await fetch(`${BASE}/data/assets/index.json`);
12  if (!res.ok) throw new Error(`Failed to load assets index: ${res.status}`);
13  const raw = await res.json();
14  // index.json is a flat array of full asset objects
15  return Array.isArray(raw) ? raw : (raw.assets ?? []);
16}
17
18/**
19 * Returns asset objects shaped for map display, popups, filters, and
20 * aggregation — no individual asset fetches needed.
21 * Full record is loaded lazily via loadAsset(id) when detail/finance is needed.
22 */
23export async function loadAssetsForMap() {
24  const index = await loadAssetsIndex();
25  return index.map(item => {
26    // index.json contains full asset objects with nested structure
27    const cp = item.cost_paths ?? {};
28    const baseline = cp.baseline ?? null;
29    const cc       = cp.code_compliant ?? null;
30    const bbb      = cp.build_back_better ?? null;
31    const baselineFs = item.financing_structures?.baseline ?? {};
32    const financingClass =
33      baselineFs._financing_class ??
34      ((baselineFs.grant_pct ?? 0) >= 50 ? 'grant_led' : 'mixed');
35
36    return {
37      asset_id: item.asset_id,
38      name: {
39        en: item.name?.en ?? item.asset_id,
40        uk: item.name?.uk ?? item.name?.en ?? item.asset_id,
41      },
42      location: {
43        lat:    item.location?.lat,
44        lon:    item.location?.lon,
45        oblast: item.location?.oblast ?? '',
46      },
47      sector: item.sector,
48      wartime_status: {
49        lifecycle:      item.wartime_status?.lifecycle,
50        rebuildability: item.wartime_status?.rebuildability,
51      },
52      damage: {
53        destruction_level: item.damage?.destruction_level,
54        re_damage_count:   item.damage?.re_damage_count ?? 0,
55      },
56      cost_paths: {
57        pending_methodology: cp.pending_methodology ?? false,
58        baseline,
59        code_compliant:    cc,
60        build_back_better: bbb,
61      },
62      financing_structures: {
63        baseline:          { _financing_class: financingClass },
64        code_compliant:    { _financing_class: financingClass },
65        build_back_better: { _financing_class: financingClass },
66      },
67      _slim: true,
68    };
69  });
70}
71
72export async function loadAsset(id) {
73  const res = await fetch(`${BASE}/data/assets/${encodeURIComponent(id)}.json`);
74  if (!res.ok) throw new Error(`Failed to load asset ${id}: ${res.status}`);
75  return res.json();
76}
77
78export async function loadAllAssets() {
79  const index = await loadAssetsIndex();
80  // index.json is already the full asset objects; no need for individual fetches
81  return index;
82}
83
84export async function loadOblastsGeoJSON() {
85  const res = await fetch(`${BASE}/data/geo/ua_oblasts.geojson`);
86  if (!res.ok) throw new Error(`Failed to load oblasts GeoJSON: ${res.status}`);
87  return res.json();
88}