feat: plugins v1

toju-app/src/app/domains/plugins/application/services/plugin-logger.service.ts

@@ -0,0 +1,64 @@
+import {
+  Injectable,
+  Signal,
+  computed,
+  signal
+} from '@angular/core';
+
+export type PluginLogLevel = 'debug' | 'error' | 'info' | 'warn';
+
+export interface PluginLogEntry {
+  data?: unknown;
+  level: PluginLogLevel;
+  message: string;
+  pluginId: string;
+  timestamp: number;
+}
+
+@Injectable({ providedIn: 'root' })
+export class PluginLoggerService {
+  readonly entries: Signal<PluginLogEntry[]>;
+
+  private readonly entriesSignal = signal<PluginLogEntry[]>([]);
+
+  constructor() {
+    this.entries = this.entriesSignal.asReadonly();
+  }
+
+  entriesFor(pluginId: string): Signal<PluginLogEntry[]> {
+    return computed(() => this.entries().filter((entry) => entry.pluginId === pluginId));
+  }
+
+  debug(pluginId: string, message: string, data?: unknown): void {
+    this.add(pluginId, 'debug', message, data);
+  }
+
+  error(pluginId: string, message: string, data?: unknown): void {
+    this.add(pluginId, 'error', message, data);
+  }
+
+  info(pluginId: string, message: string, data?: unknown): void {
+    this.add(pluginId, 'info', message, data);
+  }
+
+  warn(pluginId: string, message: string, data?: unknown): void {
+    this.add(pluginId, 'warn', message, data);
+  }
+
+  clear(pluginId?: string): void {
+    this.entriesSignal.update((entries) => pluginId ? entries.filter((entry) => entry.pluginId !== pluginId) : []);
+  }
+
+  private add(pluginId: string, level: PluginLogLevel, message: string, data?: unknown): void {
+    this.entriesSignal.update((entries) => [
+      ...entries,
+      {
+        data,
+        level,
+        message,
+        pluginId,
+        timestamp: Date.now()
+      }
+    ].slice(-500));
+  }
+}