119 lines
9.0 KiB
TypeScript
119 lines
9.0 KiB
TypeScript
import { restoreBusinessPlanSnapshot } from './business-financial-plan.ts';
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const empty = (value: unknown) => value == null || value === '' || (Array.isArray(value) && value.length === 0);
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function canonical(value: unknown): unknown {
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if (Array.isArray(value)) return value.map(canonical);
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if (value && typeof value === 'object') return Object.fromEntries(Object.entries(value).sort(([a],[b])=>a.localeCompare(b)).map(([key,item])=>[key,canonical(item)]));
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return value;
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}
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// Change tracking only, never an authorization, integrity or legal-acceptance token. No personal values in metadata.
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function signature(value: unknown): string {
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const text=JSON.stringify(canonical(value)) ?? 'undefined';let hash=14695981039346656037n;
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for(let index=0;index<text.length;index++) hash=BigInt.asUintN(64,(hash^BigInt(text.charCodeAt(index)))*1099511628211n);
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return `${text.length}:${hash.toString(16)}`;
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}
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export function inheritCompatibleFields(scope:string, values:Record<string,unknown>, source:Record<string,unknown>, raw:unknown, allowed?:string[]): {patch:Record<string,unknown>; metadata:string; inherited:string[]; conflicts:string[]} {
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let previous:Record<string,string>={};
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try { const saved=JSON.parse(String(raw ?? ''));if(saved.version===1 && saved.scope===scope && saved.inherited && typeof saved.inherited==='object') previous=saved.inherited; } catch { /* Legacy inputs are retained, not overwritten. */ }
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const next={...previous};const patch:Record<string,unknown>={};const inherited:string[]=[];const conflicts:string[]=[];
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const geo=['province_id','district_id','admin_post_id','locality_id'];
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const geoConflict=geo.some(key=>(!empty(values[key]) || key in previous) && signature(values[key])!==signature(source[key]) && previous[key]!==signature(values[key]));
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for(const [key,value] of Object.entries(source)) {
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if ((allowed && !allowed.includes(key)) || (empty(value) && !(key in previous))) continue;
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if (key === 'context_applicability_snapshot') {
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// Read-only assessment of the current dossier, not a deliberate form answer.
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if (signature(values[key]) !== signature(value)) patch[key] = value;
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next[key] = signature(value); inherited.push(key);
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continue;
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}
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if (key.endsWith('_label')) {
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const base = key.slice(0, -6);
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const baseOwned = previous[base] === signature(values[base]);
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const baseVacant = empty(values[base]) && !(base in previous);
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if (!(base in source) || (geo.includes(base) && geoConflict) || (!baseOwned && !baseVacant && signature(values[base]) !== signature(source[base]))) continue;
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// A label describes its identifier; it must never lag behind an adopted identifier.
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if (signature(values[key]) !== signature(value)) patch[key] = value;
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next[key] = signature(value); inherited.push(key);
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continue;
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}
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const current=values[key];
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const track = (item:unknown) => key==='parcels' ? Object.fromEntries(geo.map(field=>[field,(item as Array<Record<string,unknown>>)?.[0]?.[field] ?? ''])) : item;
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const owned=previous[key]===signature(track(current));
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const vacant=key==='parcels' ? geo.every(field=>empty((current as Array<Record<string,unknown>>)?.[0]?.[field])) : empty(current);
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if ((geo.includes(key) && geoConflict) || (!owned && (!vacant || key in previous))) {
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if(signature(current)!==signature(value)) conflicts.push(key);
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continue;
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}
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if(key==='parcels') {
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const parcels=current as Array<Record<string,unknown>>|undefined;
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if(!owned && parcels?.length && geo.some(field=>!empty(parcels[0]?.[field]))) {conflicts.push(key);continue;}
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}
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if(signature(track(current))!==signature(track(value))) {
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if(key==='parcels') {
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const parcels=(current as Array<Record<string,unknown>>) ?? [];
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patch[key]=[{...parcels[0],...Object.fromEntries(geo.map(field=>[field,(value as Array<Record<string,unknown>>)[0]?.[field] ?? '']))},...parcels.slice(1)];
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} else patch[key]=value;
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}
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next[key]=signature(track(value));inherited.push(key);
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}
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return {patch,metadata:JSON.stringify({version:1,scope,inherited:next}),inherited,conflicts};
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}
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/** Presentation only: a saved, unedited inherited value can be shown without asking again. */
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export function reusedInvestmentValue(scope: string, key: string, values: Record<string, unknown>): string | null {
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if (!['journey_type', 'purpose', 'project_title', 'project_summary', 'sector_id', 'province_id', 'district_id', 'admin_post_id', 'locality_id'].includes(key)) return null;
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try {
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const metadata = JSON.parse(String(values.context_reuse ?? ''));
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if (metadata.version !== 1 || metadata.scope !== scope || empty(values[key]) || metadata.inherited?.[key] !== signature(values[key])) return null;
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if (key.endsWith('_id') || ['journey_type', 'purpose'].includes(key)) {
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const label = values[`${key}_label`];
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return typeof label === 'string' && label.trim() && metadata.inherited?.[`${key}_label`] === signature(label) ? label : null;
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}
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return typeof values[key] === 'string' ? values[key] : null;
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} catch { return null; }
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}
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/** Report the lineage without changing a stored answer or disclosing the tracking hash. */
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export function investmentFieldOrigin(values: Record<string, unknown>, key: string, fallback: string): string {
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try {
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const reuse = JSON.parse(String(values.context_reuse ?? ''));
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if (reuse.version !== 1 || !/^dossier:.+:simulator$/.test(reuse.scope) || !reuse.inherited?.[key]) return fallback;
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const snapshot = JSON.parse(String(values.context_applicability_snapshot ?? ''));
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const origin = snapshot.field_provenance?.[key];
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const source = origin?.kind === 'opportunity' ? `oportunidade «${origin.title ?? 'referência guardada'}»`
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: origin?.kind === 'process_declaration' || origin?.kind === 'dossier' ? 'dados introduzidos pelo utilizador no dossier'
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: origin?.kind === 'sector' ? `catálogo sectorial «${origin.title ?? 'referência guardada'}»`
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: origin?.kind === 'territory' ? `catálogo territorial «${origin.title ?? 'referência guardada'}»`
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: origin?.kind === 'linked_simulation' ? 'simulador ligado ao mesmo dossier'
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: 'dossier de investimento';
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const version = origin?.version ? `, versão ${origin.version}` : '';
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return reuse.inherited[key] === signature(values[key])
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? `Herdado de ${source}${version}`
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: `Alterado posteriormente pelo utilizador; origem anterior: ${source}${version}`;
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} catch { return fallback; }
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}
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export function inheritSimulatorFields<T extends Record<string,unknown>>(draft:T): T {
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const source:Record<string,unknown>={};
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const plan=draft.business_plan_snapshot ? restoreBusinessPlanSnapshot(String(draft.business_plan_snapshot)) : null;
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if(plan?.currency) source.currency=plan.currency;
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const currency=draft.currency || source.currency;
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if(currency) {source.fiscal_currency=currency;source.opportunity_currency=currency;source.published_iva_currency=currency;}
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if(draft.tax_residency_country) source.fiscal_residency_country=draft.tax_residency_country;
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if(draft.fiscal_reference_date) source.published_iva_date=draft.fiscal_reference_date;
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let settings:Record<string,unknown>={start:'',basis:'unknown',declared:false,auto:false};
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let settingsValid=!draft.monthly_iva_settings;
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try {const saved=JSON.parse(String(draft.monthly_iva_settings ?? ''));if(saved && !Array.isArray(saved) && typeof saved.start==='string' && ['net','included','unknown'].includes(saved.basis) && typeof saved.declared==='boolean' && typeof saved.auto==='boolean') {settings=saved;settingsValid=true;}} catch { /* Invalid stored inputs remain intact. */ }
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const start=String(draft.expected_start_date ?? '');
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if(/^\d{4}-\d{2}-\d{2}$/.test(start)) source.monthly_iva_start=start.slice(0,7);
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else if(/^\d{4}$/.test(String(draft.fiscal_period)) && draft.fiscal_periodicity==='monthly' && /^(0?[1-9]|1[0-2])$/.test(String(draft.fiscal_month))) source.monthly_iva_start=`${draft.fiscal_period}-${String(draft.fiscal_month).padStart(2,'0')}`;
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if(!settingsValid) delete source.monthly_iva_start;
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// Legacy drafts without a compatible source need no inheritance marker or autosave churn.
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if (!Object.keys(source).length && !draft.compatible_fields_snapshot) return draft;
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const values={...draft,monthly_iva_start:settings.start ?? ''};
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const patch=inheritCompatibleFields('simulator-compatible-fields',values,source,draft.compatible_fields_snapshot);
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const next:Record<string,unknown>={...draft,...patch.patch,compatible_fields_snapshot:patch.metadata};
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if('monthly_iva_start' in patch.patch) next.monthly_iva_settings=JSON.stringify({...settings,start:patch.patch.monthly_iva_start});
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delete next.monthly_iva_start;
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return JSON.stringify(next)===JSON.stringify(draft) ? draft : next as T;
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}
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