From e10ab44dc7df7b0f3fcb45ecc3c004fc1e7b980d Mon Sep 17 00:00:00 2001
From: Johan LEROY <johan@beehelp.fr>
Date: Mon, 21 Sep 2026 14:29:22 +0200
Subject: [PATCH] feat(frontend): composant ev-icon en SVG inline pour les
 types d'alerte
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Cinq tracés (spike, threshold, anomaly, outage, sensor) dessinés en trait sur
currentColor, dimensionnés par font-size comme ev-brand. Décoratif par défaut
(aria-hidden), rôle image et libellé accessible quand `label` est fourni.
Aucune bibliothèque : la CSP du reverse proxy interdit les scripts tiers, pas le
SVG inline.
---
 .../app/shared/components/ui/icon/icon.html   | 37 ++++++++++++++
 .../app/shared/components/ui/icon/icon.scss   | 12 +++++
 .../shared/components/ui/icon/icon.spec.ts    | 49 +++++++++++++++++++
 .../src/app/shared/components/ui/icon/icon.ts | 14 ++++++
 4 files changed, 112 insertions(+)
 create mode 100644 apps/frontend/src/app/shared/components/ui/icon/icon.html
 create mode 100644 apps/frontend/src/app/shared/components/ui/icon/icon.scss
 create mode 100644 apps/frontend/src/app/shared/components/ui/icon/icon.spec.ts
 create mode 100644 apps/frontend/src/app/shared/components/ui/icon/icon.ts

diff --git a/apps/frontend/src/app/shared/components/ui/icon/icon.html b/apps/frontend/src/app/shared/components/ui/icon/icon.html
new file mode 100644
index 0000000..869ccd1
--- /dev/null
+++ b/apps/frontend/src/app/shared/components/ui/icon/icon.html
@@ -0,0 +1,37 @@
+<svg
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+  focusable="false"
+  [attr.role]="label() ? 'img' : null"
+  [attr.aria-label]="label()"
+  [attr.aria-hidden]="label() ? null : 'true'"
+>
+  @switch (name()) {
+    @case ('spike') {
+      <polyline points="3 17 8 12 11 15 21 5" />
+      <polyline points="15 5 21 5 21 11" />
+    }
+    @case ('threshold') {
+      <line x1="3" y1="10" x2="21" y2="10" stroke-dasharray="3 3" />
+      <polyline points="4 19 9 13 13 15 20 6" />
+    }
+    @case ('anomaly') {
+      <polyline points="3 12 7 12 9.5 6 12.5 18 15 12 21 12" />
+    }
+    @case ('outage') {
+      <path d="M7.5 6.5a7 7 0 1 0 9 0" />
+      <line x1="12" y1="3" x2="12" y2="11" />
+    }
+    @case ('sensor') {
+      <circle cx="12" cy="13" r="2" />
+      <path d="M8.5 9.5a5 5 0 0 0 0 7" />
+      <path d="M15.5 9.5a5 5 0 0 1 0 7" />
+      <path d="M5.5 6.5a9 9 0 0 0 0 13" />
+      <path d="M18.5 6.5a9 9 0 0 1 0 13" />
+    }
+  }
+</svg>
diff --git a/apps/frontend/src/app/shared/components/ui/icon/icon.scss b/apps/frontend/src/app/shared/components/ui/icon/icon.scss
new file mode 100644
index 0000000..c90a9ce
--- /dev/null
+++ b/apps/frontend/src/app/shared/components/ui/icon/icon.scss
@@ -0,0 +1,12 @@
+:host {
+  display: inline-flex;
+  flex-shrink: 0;
+  width: 1em;
+  height: 1em;
+  vertical-align: -0.125em;
+}
+
+svg {
+  width: 100%;
+  height: 100%;
+}
diff --git a/apps/frontend/src/app/shared/components/ui/icon/icon.spec.ts b/apps/frontend/src/app/shared/components/ui/icon/icon.spec.ts
new file mode 100644
index 0000000..ce3dedc
--- /dev/null
+++ b/apps/frontend/src/app/shared/components/ui/icon/icon.spec.ts
@@ -0,0 +1,49 @@
+import { TestBed } from '@angular/core/testing';
+import { Icon, IconName } from './icon';
+
+const NOMS: IconName[] = ['spike', 'threshold', 'anomaly', 'outage', 'sensor'];
+
+function rendre(name: IconName, label: string | null = null) {
+  const fixture = TestBed.createComponent(Icon);
+  fixture.componentRef.setInput('name', name);
+  fixture.componentRef.setInput('label', label);
+  fixture.detectChanges();
+  return fixture.nativeElement as HTMLElement;
+}
+
+describe('Icon', () => {
+  beforeEach(() => {
+    TestBed.configureTestingModule({ imports: [Icon] });
+  });
+
+  it('dessine un tracé distinct pour chacun des cinq types', () => {
+    const traces = NOMS.map((name) => rendre(name).querySelector('svg')?.innerHTML.trim());
+
+    for (const trace of traces) {
+      expect(trace).toBeTruthy();
+    }
+    expect(new Set(traces).size).toBe(NOMS.length);
+  });
+
+  it('reste décoratif sans libellé', () => {
+    const svg = rendre('spike').querySelector('svg');
+
+    expect(svg?.getAttribute('aria-hidden')).toBe('true');
+    expect(svg?.hasAttribute('role')).toBe(false);
+  });
+
+  it('expose un rôle image et un libellé accessible quand on lui en donne un', () => {
+    const svg = rendre('outage', 'Coupure').querySelector('svg');
+
+    expect(svg?.getAttribute('role')).toBe('img');
+    expect(svg?.getAttribute('aria-label')).toBe('Coupure');
+    expect(svg?.hasAttribute('aria-hidden')).toBe(false);
+  });
+
+  it('hérite de la couleur du parent via currentColor', () => {
+    const svg = rendre('sensor').querySelector('svg');
+
+    expect(svg?.getAttribute('stroke')).toBe('currentColor');
+    expect(svg?.getAttribute('fill')).toBe('none');
+  });
+});
diff --git a/apps/frontend/src/app/shared/components/ui/icon/icon.ts b/apps/frontend/src/app/shared/components/ui/icon/icon.ts
new file mode 100644
index 0000000..dc302e9
--- /dev/null
+++ b/apps/frontend/src/app/shared/components/ui/icon/icon.ts
@@ -0,0 +1,14 @@
+import { Component, input } from '@angular/core';
+
+export type IconName = 'spike' | 'threshold' | 'anomaly' | 'outage' | 'sensor';
+
+@Component({
+  selector: 'ev-icon',
+  standalone: true,
+  templateUrl: './icon.html',
+  styleUrl: './icon.scss',
+})
+export class Icon {
+  name = input.required<IconName>();
+  label = input<string | null>(null);
+}