[mod] e-mails plus explicites (titre + motif erreur)

src/lib/types/state.ts

@@ -1,21 +1,32 @@
 export class Watcher {
-    private state: 'INIT'|'OK'|'FAILURE'|'RECOVERED'
-    private failureMessage?: string
+    private _state: 'INIT'|'OK'|'FAILURE'|'RECOVERED'
+    private _error?: any
 
     constructor(public readonly name: string) {
-        this.state = "INIT"
+        this._state = "INIT"
     }
 
     public stateOK() {
-        this.state = "OK"
+        this._state = "OK"
     }
 
     public stateRecovered() {
-        this.state = "RECOVERED"
+        this._state = "RECOVERED"
     }
 
-    public stateFailure(error: string) {
-        this.state = "FAILURE"
-        this.failureMessage = error
+    public stateFailure(error: any) {
+        this._state = "FAILURE"
+        this._error = error
+    }
+
+    public get error() {
+        return this._error
+    }
+
+    public get failureMessage(): string|undefined {
+        if (!this._error) {
+            return undefined
+        }
+        return this._error.message || this._error
     }
 }