Versie 0.2.0

shared/source-diagnosis.js

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+// Generated, do not edit. sha256:e34176fb1b8095153c2f85bcad4807088cce9195b029b64bb8721d0f3610d90d
+export const HISTORY_CAPABILITIES = Object.freeze(['daily_history', 'history_point']);
+
+const has = (p, cap) => Array.isArray(p.endpoints) && p.endpoints.some(e => e.capability === cap);
+const covers = (p, symbol) => Array.isArray(p.coverage) && p.coverage.includes(symbol);
+const deliversHistory = p => HISTORY_CAPABILITIES.some(cap => has(p, cap));
+
+export function diagnoseSources(asset, { providers = [], historyChain = [], usage = {}, serviceCovers = false } = {}) {
+  if (!asset) return [];
+  const byKey = new Map(providers.map(p => [p.key, p]));
+  const candidates = providers.filter(p => !p.isSystem && !p.fixedRate && covers(p, asset.symbol) && deliversHistory(p));
+  if (!candidates.length) return serviceCovers ? [] : [{ severity: 'problem', code: 'noCoverage' }];
+  const active = candidates.filter(p => p.isActive);
+  if (!active.length) return serviceCovers ? [] : [{ severity: 'problem', code: 'allInactive', names: candidates.map(p => p.name) }];
+
+  const chosen = [], unusable = [];
+  for (const key of historyChain) {
+    const p = byKey.get(key);
+    if (!p) continue;
+    const usable = p.isActive && deliversHistory(p) && covers(p, asset.symbol);
+    (usable ? chosen : unusable).push(p);
+  }
+  const unique = list => [...new Map(list.map(p => [p.id, p])).values()];
+  if (!chosen.length) {
+    if (serviceCovers) return [];
+    const proposal = proposalFrom(active);
+    return [{ severity: 'problem', code: unusable.length ? 'choiceUnusable' : 'noChoice',
+      names: unique(unusable).map(p => p.name), proposal }];
+  }
+  const out = [];
+  const atLimit = unique(chosen).filter(p => p.callsPerMonth && (usage[p.id] ?? 0) >= p.callsPerMonth);
+  if (atLimit.length) {
+    out.push({ severity: atLimit.length === unique(chosen).length && !serviceCovers ? 'problem' : 'attention',
+      code: 'limitReached', names: atLimit.map(p => p.name) });
+  }
+  const off = unique(unusable).filter(p => !p.isActive);
+  if (off.length) out.push({ severity: 'attention', code: 'choiceInactive', names: off.map(p => p.name) });
+  return out;
+}
+
+function proposalFrom(active) {
+  for (const cap of HISTORY_CAPABILITIES) {
+    const p = active.find(x => has(x, cap));
+    if (p) return { providerKey: p.key, providerId: p.id, providerName: p.name, capability: 'history' };
+  }
+  return null;
+}