feat: (internal) pre:signout & post:signout events

* * *

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lib/sign-out.js

@@ -1,6 +1,7 @@
 module.exports = signOut
 
 var clone = require('lodash/clone')
+var invokeMap = require('lodash/invokeMap')
 
 var internals = module.exports.internals = {}
 internals.request = require('../utils/request')
@@ -10,12 +11,26 @@ internals.get = require('./get')
 function signOut (state) {
   var accountProperties = internals.get(state)
 
-  return internals.request({
-    method: 'DELETE',
-    url: state.url + '/session',
-    headers: {
-      authorization: 'Bearer ' + state.account.session.id
-    }
+  var preHooks = []
+  // note: the `pre:signout` & `post:signout` events are not considered public
+  //       APIs and might change in future without notice
+  //       https://github.com/hoodiehq/hoodie-client-account/issues/65
+  state.emitter.emit('pre:signout', { hooks: preHooks })
+
+  return Promise.resolve()
+
+  .then(function () {
+    return Promise.all(invokeMap(preHooks, 'call'))
+  })
+
+  .then(function () {
+    return internals.request({
+      method: 'DELETE',
+      url: state.url + '/session',
+      headers: {
+        authorization: 'Bearer ' + state.account.session.id
+      }
+    })
   })
 
   .then(function () {
@@ -27,6 +42,17 @@ function signOut (state) {
 
     delete state.account
 
-    return clone(accountProperties)
+    var postHooks = []
+
+    // note: the `pre:signout` & `post:signout` events are not considered public
+    //       APIs and might change in future without notice
+    //       https://github.com/hoodiehq/hoodie-client-account/issues/65
+    state.emitter.emit('post:signout', { hooks: postHooks })
+
+    return Promise.all(invokeMap(postHooks, 'call'))
+
+    .then(function () {
+      return clone(accountProperties)
+    })
   })
 }