From afdf05328864cd20fee83d536f6727fca6a1b7d6 Mon Sep 17 00:00:00 2001
From: Kailash Nadh <kailash@nadh.in>
Date: Sun, 9 Feb 2020 17:17:58 +0530
Subject: [PATCH] Add 'send opt-in mail' link to subscriber modal UI

---
 frontend/src/Subscriber.js | 40 ++++++++++++++++++++++++++++++++++++++
 frontend/src/constants.js  |  1 +
 handlers.go                |  1 +
 subscribers.go             | 30 ++++++++++++++++++++++++++++
 4 files changed, 72 insertions(+)

diff --git a/frontend/src/Subscriber.js b/frontend/src/Subscriber.js
index c840a6a..dde8f03 100644
--- a/frontend/src/Subscriber.js
+++ b/frontend/src/Subscriber.js
@@ -1,4 +1,5 @@
 import React from "react"
+import { Link } from "react-router-dom"
 import {
   Row,
   Col,
@@ -156,6 +157,27 @@ class CreateFormDef extends React.PureComponent {
       })
   }
 
+  handleSendOptinMail = record => {
+    this.props
+      .request(cs.Routes.SendSubscriberOptinMail, cs.MethodPost, {
+        id: record.id
+      })
+      .then(r => {
+        notification["success"]({
+          placement: cs.MsgPosition,
+          message: "Sent",
+          description: `Opt-in e-mail sentto ${record.email}`
+        })
+      })
+      .catch(e => {
+        notification["error"]({
+          placement: cs.MsgPosition,
+          message: "Error",
+          description: e.message
+        })
+      })
+  }
+
   render() {
     const { formType, record } = this.props
     const { getFieldDecorator } = this.props.form
@@ -240,6 +262,24 @@ class CreateFormDef extends React.PureComponent {
                 ))}
               </Select>
             )}
+            {record.lists &&
+              record.lists.some(l => {
+                return (
+                  l.subscription_status === cs.SubscriptionStatusUnConfirmed
+                )
+              }) && (
+                <Tooltip title="Send an opt-in e-mail to the subscriber to confirm subscriptions">
+                  <Link
+                    onClick={e => {
+                      e.preventDefault()
+                      this.handleSendOptinMail(record)
+                    }}
+                    to={`/`}
+                  >
+                    <Icon type="rocket" /> Send opt-in e-mail
+                  </Link>
+                </Tooltip>
+              )}
           </Form.Item>
           <Form.Item {...layout} label="Attributes" colon={false}>
             <div>
diff --git a/frontend/src/constants.js b/frontend/src/constants.js
index 9b6c31d..f167e4d 100644
--- a/frontend/src/constants.js
+++ b/frontend/src/constants.js
@@ -83,6 +83,7 @@ export const Routes = {
   UpdateSubscriber: "/api/subscribers/:id",
   DeleteSubscriber: "/api/subscribers/:id",
   DeleteSubscribers: "/api/subscribers",
+  SendSubscriberOptinMail: "/api/subscribers/:id/optin",
   BlacklistSubscriber: "/api/subscribers/:id/blacklist",
   BlacklistSubscribers: "/api/subscribers/blacklist",
   AddSubscriberToLists: "/api/subscribers/lists/:id",
diff --git a/handlers.go b/handlers.go
index 52713e4..e462e4b 100644
--- a/handlers.go
+++ b/handlers.go
@@ -44,6 +44,7 @@ func registerHandlers(e *echo.Echo) {
 	e.GET("/api/subscribers/:id/export", handleExportSubscriberData)
 	e.POST("/api/subscribers", handleCreateSubscriber)
 	e.PUT("/api/subscribers/:id", handleUpdateSubscriber)
+	e.POST("/api/subscribers/:id/optin", handleGetSubscriberSendOptin)
 	e.PUT("/api/subscribers/blacklist", handleBlacklistSubscribers)
 	e.PUT("/api/subscribers/:id/blacklist", handleBlacklistSubscribers)
 	e.PUT("/api/subscribers/lists/:id", handleManageSubscriberLists)
diff --git a/subscribers.go b/subscribers.go
index e18c254..f2c9fdb 100644
--- a/subscribers.go
+++ b/subscribers.go
@@ -232,6 +232,36 @@ func handleUpdateSubscriber(c echo.Context) error {
 	return handleGetSubscriber(c)
 }
 
+// handleGetSubscriberSendOptin sends an optin confirmation e-mail to a subscriber.
+func handleGetSubscriberSendOptin(c echo.Context) error {
+	var (
+		app   = c.Get("app").(*App)
+		id, _ = strconv.Atoi(c.Param("id"))
+		out   models.Subscribers
+	)
+
+	if id < 1 {
+		return echo.NewHTTPError(http.StatusBadRequest, "Invalid subscriber ID.")
+	}
+
+	// Fetch the subscriber.
+	err := app.Queries.GetSubscriber.Select(&out, id, nil)
+	if err != nil {
+		return echo.NewHTTPError(http.StatusInternalServerError,
+			fmt.Sprintf("Error fetching subscriber: %s", pqErrMsg(err)))
+	}
+	if len(out) == 0 {
+		return echo.NewHTTPError(http.StatusBadRequest, "Subscriber not found.")
+	}
+
+	if err := sendOptinConfirmation(out[0], nil, app); err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest,
+			"Error sending opt-in e-mail.")
+	}
+
+	return c.JSON(http.StatusOK, okResp{true})
+}
+
 // handleBlacklistSubscribers handles the blacklisting of one or more subscribers.
 // It takes either an ID in the URI, or a list of IDs in the request body.
 func handleBlacklistSubscribers(c echo.Context) error {