Drop lodash from @pi/ui

The three functions it used (isEqual, some with an object as criterion
and capitalize) live in util/common/compare.ts with the same behaviour,
so apps no longer pull a CommonJS library that Node's ESM loader cannot
resolve by path. TaskStream's initial bundle goes down to 1.88 MB.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

libs/ui/README.md

@@ -195,12 +195,11 @@ Detalles a tener en cuenta:
   ignorando su valor. Se descubrió al dividir los componentes; `pi-bar-chart`
   es la primera versión que realmente renderiza barras.
 
-**`lodash` se importa por función y con extensión** (`lodash/isEqual.js`,
-`lodash/some.js`, `lodash/capitalize.js`), nunca `import _ from 'lodash'`:
-lodash es CommonJS y el import completo mete la librería entera en el bundle de
-quien use un select. La extensión hace falta porque lodash no declara
-`exports`: un empaquetador resuelve `lodash/isEqual`, pero Node en ESM (Vitest,
-SSR) no, y la app falla al cargar `@pi/ui`.
+**Sin lodash.** Las tres funciones que se usaban (`isEqual`, `some` con un
+objeto como criterio y `capitalize`) están en `util/common/compare.ts`, con la
+misma semántica. lodash es CommonJS y sin mapa de `exports`: entero pesaba en el
+bundle de quien usara un select, y por funciones (`lodash/isEqual`) Node en ESM
+(Vitest, SSR) no lo resolvía.
 
 **El loader de servidor de traducciones ya no está en el barrel.**
 `util/translate/loaders/translate-server.loader` usa `fs`, `path` y `process`;

libs/ui/ng-package.json

@@ -4,7 +4,7 @@
   "lib": {
     "entryFile": "src/index.ts"
   },
-  "allowedNonPeerDependencies": ["lodash", "luxon", "ngx-infinite-scroll"],
+  "allowedNonPeerDependencies": ["luxon", "ngx-infinite-scroll"],
   "assets": [
     {
       "glob": "**/*.scss",

libs/ui/package.json

@@ -21,7 +21,6 @@
     "chart.js": "^4.0.0"
   },
   "dependencies": {
-    "lodash": "^4.17.0",
     "luxon": "^3.0.0",
     "ngx-infinite-scroll": "^22.0.0"
   },

libs/ui/src/lib/ui/chip/chip-date/chip-date.component.ts

@@ -10,7 +10,7 @@ import { ComponentFamilyClass, theming } from '../../../styles';
 import { Date } from '../../../util/models';
 import { PiBaseChipComponent } from '../base-chip.component';
 import { DateTime } from 'luxon';
-import capitalize from 'lodash/capitalize.js';
+import { capitalize } from '../../../util/common/compare';
 
 @Component({
   selector: 'pi-chip-date',

libs/ui/src/lib/ui/select/select-carousel/select-carousel.component.ts

@@ -9,7 +9,7 @@ import {
   inject,
 } from '@angular/core';
 import { TranslateService, TranslatePipe } from '@ngx-translate/core';
-import isEqual from 'lodash/isEqual.js';
+import { isEqual } from '../../../util/common/compare';
 import { PiBaseSelectComponent } from '../base-select.component';
 import { PiSelectOptionComponent } from '../select-option/select-option.component';
 import { Device } from '../../../util/device-configs';

libs/ui/src/lib/ui/select/select-multiple/select-multiple.component.ts

@@ -11,7 +11,7 @@ import {
 import { TranslateService, TranslatePipe } from '@ngx-translate/core';
 import { PiBaseSelectComponent } from '../base-select.component';
 import { PiSelectOptionComponent } from '../select-option/select-option.component';
-import some from 'lodash/some.js';
+import { isMatch } from '../../../util/common/compare';
 import { MatCheckboxChange, MatCheckbox } from '@angular/material/checkbox';
 import { NgTemplateOutlet } from '@angular/common';
 import { PiIconComponent } from '../../icon/icon/icon.component';
@@ -114,7 +114,9 @@ export class PiSelectMultipleComponent
   get selectedOptions(): Array<any> {
     const value = this.value();
     if (!value) return [];
-    return this.options().filter((option) => some(value, option));
+    return this.options().filter((option) =>
+      value.some((selected: unknown) => isMatch(selected, option)),
+    );
   }
 
   /**

libs/ui/src/lib/ui/select/select-period/select-period.component.ts

@@ -11,7 +11,7 @@ import {
 import { TranslateService, TranslatePipe } from '@ngx-translate/core';
 import { PiBaseSelectComponent } from '../base-select.component';
 import { PiSelectOptionComponent } from '../select-option/select-option.component';
-import isEqual from 'lodash/isEqual.js';
+import { isEqual } from '../../../util/common/compare';
 import { NgTemplateOutlet } from '@angular/common';
 import { PiIconComponent } from '../../icon/icon/icon.component';
 import { PiDisabledDirective } from '../../../util/status/directives/status.directive';

libs/ui/src/lib/ui/select/select/select.component.ts

@@ -13,7 +13,7 @@ import {
 import { TranslateService, TranslatePipe } from '@ngx-translate/core';
 import { PiBaseSelectComponent } from '../base-select.component';
 import { PiSelectOptionComponent } from '../select-option/select-option.component';
-import isEqual from 'lodash/isEqual.js';
+import { isEqual } from '../../../util/common/compare';
 import { NgTemplateOutlet } from '@angular/common';
 import { PiIconComponent } from '../../icon/icon/icon.component';
 import { PiDisabledDirective } from '../../../util/status/directives/status.directive';

libs/ui/src/lib/util/common/compare.spec.ts

@@ -0,0 +1,39 @@
+import { capitalize, isEqual, isMatch } from './compare';
+
+describe('compare', () => {
+  it('isEqual compara en profundidad', () => {
+    expect(
+      isEqual({ id: 1, tags: ['a', 'b'] }, { tags: ['a', 'b'], id: 1 }),
+    ).toBe(true);
+    expect(isEqual({ id: 1 }, { id: 1, extra: true })).toBe(false);
+    expect(isEqual([1, [2, 3]], [1, [2, 3]])).toBe(true);
+    expect(isEqual([1, 2], [2, 1])).toBe(false);
+    expect(isEqual(new Date(0), new Date(0))).toBe(true);
+    expect(isEqual(NaN, NaN)).toBe(true);
+    expect(isEqual(null, undefined)).toBe(false);
+    expect(isEqual('1', 1)).toBe(false);
+    expect(isEqual({ a: { b: 1 } }, { a: { b: 2 } })).toBe(false);
+  });
+
+  it('isMatch acepta lo que contiene el criterio, como `_.some(lista, objeto)`', () => {
+    const option = { id: 2, name: 'Dos' };
+    expect(
+      [
+        { id: 1, name: 'Uno' },
+        { id: 2, name: 'Dos', extra: 1 },
+      ].some((v) => isMatch(v, option)),
+    ).toBe(true);
+    expect([{ id: 2 }].some((v) => isMatch(v, option))).toBe(false);
+    expect(isMatch({ a: { b: 1, c: 2 } }, { a: { b: 1 } })).toBe(true);
+    expect(isMatch({ tags: ['a', 'b', 'c'] }, { tags: ['c', 'a'] })).toBe(true);
+    expect(isMatch({ tags: ['a'] }, { tags: ['z'] })).toBe(false);
+    expect(isMatch('x', 'x')).toBe(true);
+    expect(isMatch(null, { id: 1 })).toBe(false);
+  });
+
+  it('capitalize pone la primera en mayúscula y el resto en minúscula', () => {
+    expect(capitalize('lun')).toBe('Lun');
+    expect(capitalize('HOY')).toBe('Hoy');
+    expect(capitalize('')).toBe('');
+  });
+});

libs/ui/src/lib/util/common/compare.ts

@@ -0,0 +1,66 @@
+/**
+ * Las tres utilidades de lodash que usaba la librería (`isEqual`, `some` con
+ * un objeto como criterio y `capitalize`), con la misma semántica en los
+ * casos que se dan aquí: valores JSON, fechas, arrays y objetos planos. Sin
+ * lodash, `@pi/ui` no arrastra una librería CommonJS al bundle de nadie.
+ */
+
+/** Igualdad profunda: `isEqual({ a: [1] }, { a: [1] })` es `true`. */
+export function isEqual(a: unknown, b: unknown): boolean {
+  if (Object.is(a, b)) return true;
+  if (a instanceof Date && b instanceof Date)
+    return a.getTime() === b.getTime();
+  if (Array.isArray(a) || Array.isArray(b)) {
+    return (
+      Array.isArray(a) &&
+      Array.isArray(b) &&
+      a.length === b.length &&
+      a.every((item, i) => isEqual(item, b[i]))
+    );
+  }
+  if (!isPlainObject(a) || !isPlainObject(b)) return false;
+  const keys = Object.keys(a);
+  return (
+    keys.length === Object.keys(b).length &&
+    keys.every((key) => hasOwn(b, key) && isEqual(a[key], b[key]))
+  );
+}
+
+/**
+ * Si `value` contiene lo que pide `source`: cada propiedad de `source` está
+ * en `value` con un valor que a su vez la contiene (y el resto da igual).
+ * Es lo que hace `_.some(lista, objeto)` con cada elemento.
+ */
+export function isMatch(value: unknown, source: unknown): boolean {
+  if (isPlainObject(source)) {
+    return (
+      isPlainObject(value) &&
+      Object.keys(source).every(
+        (key) => hasOwn(value, key) && isMatch(value[key], source[key]),
+      )
+    );
+  }
+  if (Array.isArray(source)) {
+    // Como lodash: cada elemento pedido tiene que estar en el array.
+    return (
+      Array.isArray(value) &&
+      source.every((wanted) => value.some((item) => isMatch(item, wanted)))
+    );
+  }
+  return isEqual(value, source);
+}
+
+/** Primera letra en mayúscula y el resto en minúscula: «lun» → «Lun». */
+export function capitalize(text: string): string {
+  return text.charAt(0).toUpperCase() + text.slice(1).toLowerCase();
+}
+
+function isPlainObject(value: unknown): value is Record<string, unknown> {
+  if (typeof value !== 'object' || value === null) return false;
+  const proto = Object.getPrototypeOf(value);
+  return proto === Object.prototype || proto === null;
+}
+
+function hasOwn(object: object, key: string): boolean {
+  return Object.prototype.hasOwnProperty.call(object, key);
+}

package.json

@@ -33,7 +33,6 @@
     "@ngx-translate/http-loader": "^18.0.0",
     "chart.js": "^4.5.1",
     "express": "^4.21.2",
-    "lodash": "^4.18.1",
     "luxon": "^3.7.2",
     "ngx-infinite-scroll": "^22.0.0",
     "rxjs": "~7.8.0",
@@ -71,7 +70,6 @@
     "@swc/helpers": "0.5.18",
     "@types/express": "^4.17.21",
     "@types/jest": "~30.0.0",
-    "@types/lodash": "^4.17.24",
     "@types/luxon": "^3.7.2",
     "@types/node": "^24.0.0",
     "@types/supertest": "^6.0.3",