From c5ab1ba2e041a6bcc76f6a1e479a897ff8209d85 Mon Sep 17 00:00:00 2001
From: jahooma <jahooma@gmail.com>
Date: Mon, 10 Jan 2022 16:07:44 -0600
Subject: [PATCH] HTML resolved market email

---
 functions/src/emails.ts     | 37 ++++++++++++++++++++++++-------------
 functions/src/send-email.ts | 26 +++++++++++++++++++++++---
 2 files changed, 47 insertions(+), 16 deletions(-)

diff --git a/functions/src/emails.ts b/functions/src/emails.ts
index 60cfab3b..d7318caa 100644
--- a/functions/src/emails.ts
+++ b/functions/src/emails.ts
@@ -1,8 +1,17 @@
-import { sendEmail } from './send-email'
 import { Contract } from '../../common/contract'
 import { User } from '../../common/user'
+import { sendTemplateEmail } from './send-email'
 import { getUser } from './utils'
 
+type market_resolved_template = {
+  name: string
+  creatorName: string
+  question: string
+  outcome: string
+  payout: string
+  url: string
+}
+
 export const sendMarketResolutionEmail = async (
   userId: string,
   payout: number,
@@ -13,22 +22,24 @@ export const sendMarketResolutionEmail = async (
   const user = await getUser(userId)
   if (!user) return
 
-  const subject = `Resolved ${toDisplayResolution[resolution]}: ${contract.question}`
+  const outcome = toDisplayResolution[resolution]
 
-  const body = `Dear ${user.name},
+  const subject = `Resolved ${outcome}: ${contract.question}`
 
-A market you bet in has been resolved!
+  const templateData: market_resolved_template = {
+    name: user.name,
+    creatorName: creator.name,
+    question: contract.question,
+    outcome,
+    payout: `${Math.round(payout)}`,
+    url: `https://manifold.markets/${creator.username}/${contract.slug}`,
+  }
 
-Creator: ${contract.creatorName}
-Question: ${contract.question}
-Resolution: ${toDisplayResolution[resolution]}
+  // Modify template here:
+  // https://app.mailgun.com/app/sending/domains/mg.manifold.markets/templates/edit/market-resolved/initial
+  // Mailgun username: james@mantic.markets
 
-Your payout is M$ ${Math.round(payout)}
-
-View the market here:
-https://manifold.markets/${creator.username}/${contract.slug}
-`
-  await sendEmail(user.email, subject, body)
+  await sendTemplateEmail(user.email, subject, 'market-resolved', templateData)
 }
 
 const toDisplayResolution = { YES: 'YES', NO: 'NO', CANCEL: 'N/A', MKT: 'MKT' }
diff --git a/functions/src/send-email.ts b/functions/src/send-email.ts
index fd995e59..1afc1526 100644
--- a/functions/src/send-email.ts
+++ b/functions/src/send-email.ts
@@ -4,7 +4,7 @@ import * as functions from 'firebase-functions'
 const DOMAIN = 'mg.manifold.markets'
 const mg = mailgun({ apiKey: functions.config().mailgun.key, domain: DOMAIN })
 
-export const sendEmail = (to: string, subject: string, text: string) => {
+export const sendTextEmail = (to: string, subject: string, text: string) => {
   const data = {
     from: 'Manifold Markets <no-reply@manifold.markets>',
     to,
@@ -12,7 +12,27 @@ export const sendEmail = (to: string, subject: string, text: string) => {
     text,
   }
 
-  return mg.messages().send(data, (error, body) => {
-    console.log('Sent email', error, body)
+  return mg.messages().send(data, (error) => {
+    if (error) console.log('Error sending email', error)
+    else console.log('Sent text email', to, subject)
+  })
+}
+
+export const sendTemplateEmail = (
+  to: string,
+  subject: string,
+  templateId: string,
+  templateData: Record<string, string>
+) => {
+  const data = {
+    from: 'Manifold Markets <no-reply@manifold.markets>',
+    to,
+    subject,
+    template: templateId,
+    'h:X-Mailgun-Variables': JSON.stringify(templateData),
+  }
+  return mg.messages().send(data, (error) => {
+    if (error) console.log('Error sending email', error)
+    else console.log('Sent template email', templateId, to, subject)
   })
 }