From 405fdc4e322f9cd5bf2986a529154cefd3d8b794 Mon Sep 17 00:00:00 2001
From: Carlos Narro <carlos@relabtive.com>
Date: Sun, 31 May 2026 16:15:13 +0200
Subject: [PATCH] =?UTF-8?q?Add=20merge=20a=20BudgetInputs=20y=20aplicaci?=
 =?UTF-8?q?=C3=B3n=20de=20extras/ajustes=20al=20presupuesto?=
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---
 mvp/b2c/src/lib/voice/apply.ts    | 56 ++++++++++++++++++++++++
 mvp/b2c/tests/voice/apply.test.ts | 72 +++++++++++++++++++++++++++++++
 2 files changed, 128 insertions(+)
 create mode 100644 mvp/b2c/src/lib/voice/apply.ts
 create mode 100644 mvp/b2c/tests/voice/apply.test.ts

diff --git a/mvp/b2c/src/lib/voice/apply.ts b/mvp/b2c/src/lib/voice/apply.ts
new file mode 100644
index 0000000..6d132b9
--- /dev/null
+++ b/mvp/b2c/src/lib/voice/apply.ts
@@ -0,0 +1,56 @@
+import type { BudgetInputs, BudgetResult, PartidaResult, TipoReforma } from '@/budget/types';
+import type { AbstractedPreferences } from './preferences';
+
+interface LeadInputsSource {
+  tipoReforma: TipoReforma | null;
+  m2Suelo: number | null;
+  alturaTecho: number | null;
+  provincia: string | null;
+}
+
+export function mergeIntoBudgetInputs(
+  prefs: AbstractedPreferences,
+  lead: LeadInputsSource,
+): BudgetInputs {
+  return {
+    tipoReforma: lead.tipoReforma ?? 'otro',
+    m2Suelo: lead.m2Suelo,
+    alturaTecho: lead.alturaTecho,
+    calidadGlobal: prefs.calidadGlobal,
+    estructural: prefs.estructural,
+    provincia: lead.provincia,
+    materialSelections: prefs.materialSelections,
+  };
+}
+
+export function applyPreferences(
+  result: BudgetResult,
+  prefs: AbstractedPreferences,
+): BudgetResult {
+  const extras: PartidaResult[] = prefs.elementos.map((e) => ({
+    key: e.key,
+    label: e.label,
+    importe: e.importe,
+  }));
+
+  prefs.ajustes.forEach((a, i) => {
+    const importe =
+      a.tipo === 'fijo' ? a.valor : Math.round(result.subtotal * (a.valor - 1));
+    if (importe === 0) return;
+    extras.push({ key: `ajuste_${i}`, label: a.label, importe });
+  });
+
+  if (extras.length === 0 && prefs.estiloRender.length === 0) return result;
+
+  const partidas = [...result.partidas, ...extras];
+  const subtotal = partidas.reduce((s, p) => s + p.importe, 0);
+  const total = Math.round(subtotal * result.factorZona);
+  const scale = result.total > 0 ? total / result.total : 1;
+  const rango = {
+    min: Math.round(result.rango.min * scale),
+    max: Math.round(result.rango.max * scale),
+  };
+  const materialesRender = [...result.materialesRender, ...prefs.estiloRender];
+
+  return { ...result, partidas, subtotal, total, rango, materialesRender };
+}
diff --git a/mvp/b2c/tests/voice/apply.test.ts b/mvp/b2c/tests/voice/apply.test.ts
new file mode 100644
index 0000000..1a74d22
--- /dev/null
+++ b/mvp/b2c/tests/voice/apply.test.ts
@@ -0,0 +1,72 @@
+import { describe, it, expect } from 'vitest';
+import { applyPreferences, mergeIntoBudgetInputs } from '@/lib/voice/apply';
+import type { AbstractedPreferences } from '@/lib/voice/preferences';
+import type { BudgetResult } from '@/budget/types';
+
+function prefs(partial: Partial<AbstractedPreferences>): AbstractedPreferences {
+  return {
+    calidadGlobal: 'media',
+    materialSelections: {},
+    estructural: false,
+    urgencia: null,
+    presupuestoTarget: null,
+    elementos: [],
+    estiloRender: [],
+    ajustes: [],
+    confianza: 'media',
+    resumen: '',
+    camposFaltantes: [],
+    ...partial,
+  };
+}
+
+const base: BudgetResult = {
+  partidas: [{ key: 'mano_de_obra', label: 'Mano de obra', importe: 100000 }],
+  subtotal: 100000,
+  factorZona: 1,
+  total: 100000,
+  rango: { min: 85000, max: 115000 },
+  confianza: 'media',
+  materialesRender: ['suelo cerámico gris'],
+  avisos: [],
+};
+
+describe('applyPreferences', () => {
+  it('añade elementos y ajustes fijos como partidas y recalcula totales', () => {
+    const r = applyPreferences(base, prefs({
+      elementos: [{ key: 'isla_cocina', label: 'Isla de cocina', importe: 120000 }],
+      ajustes: [{ label: 'Encimera de piedra natural', tipo: 'fijo', valor: 50000, motivo: 'cuarzo' }],
+      estiloRender: ['estilo nórdico'],
+    }));
+    const byKey = Object.fromEntries(r.partidas.map((p) => [p.key, p.importe]));
+    expect(byKey.isla_cocina).toBe(120000);
+    expect(r.partidas.some((p) => p.label === 'Encimera de piedra natural' && p.importe === 50000)).toBe(true);
+    expect(r.subtotal).toBe(270000);
+    expect(r.total).toBe(270000);
+    expect(r.rango.min).toBe(229500); // round(85000 * 2.7)
+    expect(r.rango.max).toBe(310500); // round(115000 * 2.7)
+    expect(r.materialesRender).toContain('estilo nórdico');
+  });
+
+  it('un ajuste tipo factor se aplica sobre el subtotal original como partida explícita', () => {
+    const r = applyPreferences(base, prefs({
+      ajustes: [{ label: 'Acabado premium global', tipo: 'factor', valor: 1.1, motivo: 'premium' }],
+    }));
+    expect(r.partidas.some((p) => p.label === 'Acabado premium global' && p.importe === 10000)).toBe(true);
+    expect(r.subtotal).toBe(110000);
+  });
+});
+
+describe('mergeIntoBudgetInputs', () => {
+  it('vuelca preferencias y datos del lead en BudgetInputs', () => {
+    const inputs = mergeIntoBudgetInputs(
+      prefs({ calidadGlobal: 'premium', materialSelections: { suelo: 'suelo-p' }, estructural: true }),
+      { tipoReforma: 'cocina', m2Suelo: 16, alturaTecho: null, provincia: 'Madrid' },
+    );
+    expect(inputs.calidadGlobal).toBe('premium');
+    expect(inputs.materialSelections.suelo).toBe('suelo-p');
+    expect(inputs.estructural).toBe(true);
+    expect(inputs.m2Suelo).toBe(16);
+    expect(inputs.provincia).toBe('Madrid');
+  });
+});