Added missing events for analytics

refs https://github.com/TryGhost/Team/issues/1054

In order to listen to events we must define them! This adds the missing
events that we need to listen to for member analytics.

ghost/member-events/index.js

@@ -1,3 +1,7 @@
 module.exports = {
-    MemberEntryViewEvent: require('./lib/MemberEntryViewEvent')
+    MemberEntryViewEvent: require('./lib/MemberEntryViewEvent'),
+    MemberUnsubscribeEvent: require('./lib/MemberUnsubscribeEvent'),
+    MemberSignupEvent: require('./lib/MemberSignupEvent'),
+    MemberPaidConverstionEvent: require('./lib/MemberPaidConversionEvent'),
+    MemberPaidCancellationEvent: require('./lib/MemberPaidCancellationEvent')
 };

ghost/member-events/lib/MemberPaidCancellationEvent.js

@@ -0,0 +1,27 @@
+/**
+ * @typedef {object} MemberPaidCancellationEventData
+ * @prop {string} memberId
+ * @prop {string} memberStatus
+ * @prop {string} subscriptionId
+ * @prop {string} entryId
+ * @prop {string} sourceUrl
+ */
+
+module.exports = class MemberPaidCancellationEvent {
+    /**
+     * @param {MemberPaidCancellationEventData} data
+     * @param {Date} timestamp
+     */
+    constructor(data, timestamp) {
+        this.data = data;
+        this.timestamp = timestamp;
+    }
+
+    /**
+     * @param {MemberPaidCancellationEventData} data
+     * @param {Date} [timestamp]
+     */
+    static create(data, timestamp) {
+        return new MemberPaidCancellationEvent(data, timestamp || new Date);
+    }
+};

ghost/member-events/lib/MemberPaidConversionEvent.js

@@ -0,0 +1,27 @@
+/**
+ * @typedef {object} MemberPaidConversionEventData
+ * @prop {string} memberId
+ * @prop {string} memberStatus
+ * @prop {string} subscriptionId
+ * @prop {string} entryId
+ * @prop {string} sourceUrl
+ */
+
+module.exports = class MemberPaidConversionEvent {
+    /**
+     * @param {MemberPaidConversionEventData} data
+     * @param {Date} timestamp
+     */
+    constructor(data, timestamp) {
+        this.data = data;
+        this.timestamp = timestamp;
+    }
+
+    /**
+     * @param {MemberPaidConversionEventData} data
+     * @param {Date} [timestamp]
+     */
+    static create(data, timestamp) {
+        return new MemberPaidConversionEvent(data, timestamp || new Date);
+    }
+};

ghost/member-events/lib/MemberSignupEvent.js

@@ -0,0 +1,26 @@
+/**
+ * @typedef {object} MemberSignupEventData
+ * @prop {string} memberId
+ * @prop {string} entryId
+ * @prop {string} sourceUrl
+ */
+
+module.exports = class MemberSignupEvent {
+    /**
+     * @param {MemberSignupEventData} data
+     * @param {Date} timestamp
+     */
+    constructor(data, timestamp) {
+        this.data = data;
+        this.timestamp = timestamp;
+    }
+
+    /**
+     * @param {MemberSignupEventData} data
+     * @param {Date} [timestamp]
+     */
+    static create(data, timestamp) {
+        return new MemberSignupEvent(data, timestamp || new Date);
+    }
+};
+

ghost/member-events/lib/MemberUnsubscribeEvent.js

@@ -0,0 +1,26 @@
+/**
+ * @typedef {object} MemberUnsubscribeEventData
+ * @prop {string} memberId
+ * @prop {string} memberStatus
+ * @prop {string} entryId
+ * @prop {string} sourceUrl
+ */
+
+module.exports = class MemberUnsubscribeEvent {
+    /**
+     * @param {MemberUnsubscribeEventData} data
+     * @param {Date} timestamp
+     */
+    constructor(data, timestamp) {
+        this.data = data;
+        this.timestamp = timestamp;
+    }
+
+    /**
+     * @param {MemberUnsubscribeEventData} data
+     * @param {Date} [timestamp]
+     */
+    static create(data, timestamp) {
+        return new MemberUnsubscribeEvent(data, timestamp || new Date);
+    }
+};