feat(state): Add reply helper to state

src/lib/state.spec.ts

@@ -139,6 +139,19 @@ describe('[state]', () => {
       expect(b.envelopes![0].strings).to.eql(['testing'])
     })
   })
+  describe('.reply', () => {
+    it('prefixes all strings with @user from message', async () => {
+      const b = new bot.State({ message })
+      const respond = sinon.stub(b, 'respond')
+      await b.reply('one', { foo: 'bar' }, 'two')
+      sinon.assert.calledWithExactly(
+        respond,
+        '@test-user one',
+        { foo: 'bar' },
+        '@test-user two'
+      )
+    })
+  })
   describe('.respondVia', () => {
     it('updates state method before calling respond', async () => {
       const b = new bot.State({ message })

src/lib/state.ts

@@ -139,6 +139,16 @@ export class State implements IState {
     return bot.respond(this)
   }
 
+  /** Respond with the incoming message's user name prefixed */
+  reply (...content: any[]) {
+    for (let i in content) {
+      if (typeof content[i] === 'string') {
+        content[i] = `@${this.message.user.name} ${content[i]}`
+      }
+    }
+    return this.respond(...content)
+  }
+
   /** Set method for dispatching envelope responding to state */
   respondVia (method: string, ...content: any[]) {
     this.respondEnvelope().via(method)