Markets emails (#764)

* Send out email template for 3 trending markets

* Rich text to plaintext descriptions, other ui changes

* Lint

* Filter for closed markets

* Change sign

* First order must be closeTime

* Send 6 emails, check flag twice

* Exclude contracts with trump and president in the name

* interesting markets email

* sendInterestingMarketsEmail

* Change subject line back

Co-authored-by: mantikoros <sgrugett@gmail.com>

common/contract-details.ts

@@ -0,0 +1,151 @@
+import { Challenge } from './challenge'
+import { BinaryContract, Contract } from './contract'
+import { getFormattedMappedValue } from './pseudo-numeric'
+import { getProbability } from './calculate'
+import { richTextToString } from './util/parse'
+import { getCpmmProbability } from './calculate-cpmm'
+import { getDpmProbability } from './calculate-dpm'
+import { formatMoney, formatPercent } from './util/format'
+
+export function contractMetrics(contract: Contract) {
+  // eslint-disable-next-line @typescript-eslint/no-var-requires
+  const dayjs = require('dayjs')
+  const { createdTime, resolutionTime, isResolved } = contract
+
+  const createdDate = dayjs(createdTime).format('MMM D')
+
+  const resolvedDate = isResolved
+    ? dayjs(resolutionTime).format('MMM D')
+    : undefined
+
+  const volumeLabel = `${formatMoney(contract.volume)} bet`
+
+  return { volumeLabel, createdDate, resolvedDate }
+}
+
+// String version of the above, to send to the OpenGraph image generator
+export function contractTextDetails(contract: Contract) {
+  // eslint-disable-next-line @typescript-eslint/no-var-requires
+  const dayjs = require('dayjs')
+  const { closeTime, tags } = contract
+  const { createdDate, resolvedDate, volumeLabel } = contractMetrics(contract)
+
+  const hashtags = tags.map((tag) => `#${tag}`)
+
+  return (
+    `${resolvedDate ? `${createdDate} - ${resolvedDate}` : createdDate}` +
+    (closeTime
+      ? ` • ${closeTime > Date.now() ? 'Closes' : 'Closed'} ${dayjs(
+          closeTime
+        ).format('MMM D, h:mma')}`
+      : '') +
+    ` • ${volumeLabel}` +
+    (hashtags.length > 0 ? ` • ${hashtags.join(' ')}` : '')
+  )
+}
+
+export function getBinaryProb(contract: BinaryContract) {
+  const { pool, resolutionProbability, mechanism } = contract
+
+  return (
+    resolutionProbability ??
+    (mechanism === 'cpmm-1'
+      ? getCpmmProbability(pool, contract.p)
+      : getDpmProbability(contract.totalShares))
+  )
+}
+
+export const getOpenGraphProps = (contract: Contract) => {
+  const {
+    resolution,
+    question,
+    creatorName,
+    creatorUsername,
+    outcomeType,
+    creatorAvatarUrl,
+    description: desc,
+  } = contract
+  const probPercent =
+    outcomeType === 'BINARY'
+      ? formatPercent(getBinaryProb(contract))
+      : undefined
+
+  const numericValue =
+    outcomeType === 'PSEUDO_NUMERIC'
+      ? getFormattedMappedValue(contract)(getProbability(contract))
+      : undefined
+
+  const stringDesc = typeof desc === 'string' ? desc : richTextToString(desc)
+
+  const description = resolution
+    ? `Resolved ${resolution}. ${stringDesc}`
+    : probPercent
+    ? `${probPercent} chance. ${stringDesc}`
+    : stringDesc
+
+  return {
+    question,
+    probability: probPercent,
+    metadata: contractTextDetails(contract),
+    creatorName,
+    creatorUsername,
+    creatorAvatarUrl,
+    description,
+    numericValue,
+  }
+}
+
+export type OgCardProps = {
+  question: string
+  probability?: string
+  metadata: string
+  creatorName: string
+  creatorUsername: string
+  creatorAvatarUrl?: string
+  numericValue?: string
+}
+
+export function buildCardUrl(props: OgCardProps, challenge?: Challenge) {
+  const {
+    creatorAmount,
+    acceptances,
+    acceptorAmount,
+    creatorOutcome,
+    acceptorOutcome,
+  } = challenge || {}
+  const { userName, userAvatarUrl } = acceptances?.[0] ?? {}
+
+  const probabilityParam =
+    props.probability === undefined
+      ? ''
+      : `&probability=${encodeURIComponent(props.probability ?? '')}`
+
+  const numericValueParam =
+    props.numericValue === undefined
+      ? ''
+      : `&numericValue=${encodeURIComponent(props.numericValue ?? '')}`
+
+  const creatorAvatarUrlParam =
+    props.creatorAvatarUrl === undefined
+      ? ''
+      : `&creatorAvatarUrl=${encodeURIComponent(props.creatorAvatarUrl ?? '')}`
+
+  const challengeUrlParams = challenge
+    ? `&creatorAmount=${creatorAmount}&creatorOutcome=${creatorOutcome}` +
+      `&challengerAmount=${acceptorAmount}&challengerOutcome=${acceptorOutcome}` +
+      `&acceptedName=${userName ?? ''}&acceptedAvatarUrl=${userAvatarUrl ?? ''}`
+    : ''
+
+  // URL encode each of the props, then add them as query params
+  return (
+    `https://manifold-og-image.vercel.app/m.png` +
+    `?question=${encodeURIComponent(props.question)}` +
+    probabilityParam +
+    numericValueParam +
+    `&metadata=${encodeURIComponent(props.metadata)}` +
+    `&creatorName=${encodeURIComponent(props.creatorName)}` +
+    creatorAvatarUrlParam +
+    `&creatorUsername=${encodeURIComponent(props.creatorUsername)}` +
+    challengeUrlParams
+  )
+}

common/user.ts

@@ -59,6 +59,7 @@ export type PrivateUser = {
   unsubscribedFromCommentEmails?: boolean
   unsubscribedFromAnswerEmails?: boolean
   unsubscribedFromGenericEmails?: boolean
+  unsubscribedFromWeeklyTrendingEmails?: boolean
   manaBonusEmailSent?: boolean
   initialDeviceToken?: string
   initialIpAddress?: string

firestore.rules

@@ -63,7 +63,7 @@ service cloud.firestore {
       allow read: if userId == request.auth.uid || isAdmin();
       allow update: if (userId == request.auth.uid || isAdmin())
                        && request.resource.data.diff(resource.data).affectedKeys()
-                       .hasOnly(['apiKey', 'unsubscribedFromResolutionEmails', 'unsubscribedFromCommentEmails', 'unsubscribedFromAnswerEmails', 'notificationPreferences' ]);
+                       .hasOnly(['apiKey', 'unsubscribedFromResolutionEmails', 'unsubscribedFromCommentEmails', 'unsubscribedFromAnswerEmails', 'notificationPreferences', 'unsubscribedFromWeeklyTrendingEmails' ]);
     }
 
     match /private-users/{userId}/views/{viewId} {

functions/src/email-templates/interesting-markets.html

@@ -0,0 +1,476 @@
+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml"
+    xmlns:o="urn:schemas-microsoft-com:office:office">
+
+<head>
+    <title>Interesting markets on Manifold</title>
+    <!--[if !mso]><!-->
+    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
+    <!--<![endif]-->
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+    <meta name="viewport" content="width=device-width,initial-scale=1" />
+    <style type="text/css">
+        #outlook a {
+            padding: 0;
+        }
+
+        body {
+            margin: 0;
+            padding: 0;
+            -webkit-text-size-adjust: 100%;
+            -ms-text-size-adjust: 100%;
+        }
+
+        table,
+        td {
+            border-collapse: collapse;
+            mso-table-lspace: 0pt;
+            mso-table-rspace: 0pt;
+        }
+
+        img {
+            border: 0;
+            height: auto;
+            line-height: 100%;
+            outline: none;
+            text-decoration: none;
+            -ms-interpolation-mode: bicubic;
+        }
+
+        p {
+            display: block;
+            margin: 13px 0;
+        }
+    </style>
+    <!--[if mso]>
+      <noscript>
+        <xml>
+          <o:OfficeDocumentSettings>
+            <o:AllowPNG />
+            <o:PixelsPerInch>96</o:PixelsPerInch>
+          </o:OfficeDocumentSettings>
+        </xml>
+      </noscript>
+    <![endif]-->
+    <!--[if lte mso 11]>
+      <style type="text/css">
+        .mj-outlook-group-fix {
+          width: 100% !important;
+        }
+      </style>
+    <![endif]-->
+    <!--[if !mso]><!-->
+    <link href="https://fonts.googleapis.com/css?family=Ubuntu:300,400,500,700" rel="stylesheet" type="text/css" />
+    <link href="https://fonts.googleapis.com/css?family=Readex+Pro" rel="stylesheet" type="text/css" />
+    <link href="https://fonts.googleapis.com/css?family=Readex+Pro" rel="stylesheet" type="text/css" />
+    <style type="text/css">
+        @import url(https://fonts.googleapis.com/css?family=Ubuntu:300,400,500,700);
+        @import url(https://fonts.googleapis.com/css?family=Readex+Pro);
+        @import url(https://fonts.googleapis.com/css?family=Readex+Pro);
+    </style>
+    <!--<![endif]-->
+    <style type="text/css">
+        @media only screen and (min-width: 480px) {
+            .mj-column-per-100 {
+                width: 100% !important;
+                max-width: 100%;
+            }
+        }
+    </style>
+    <style media="screen and (min-width:480px)">
+        .moz-text-html .mj-column-per-100 {
+            width: 100% !important;
+            max-width: 100%;
+        }
+    </style>
+    <style type="text/css">
+        [owa] .mj-column-per-100 {
+            width: 100% !important;
+            max-width: 100%;
+        }
+    </style>
+    <style type="text/css">
+        @media only screen and (max-width: 480px) {
+            table.mj-full-width-mobile {
+                width: 100% !important;
+            }
+
+            td.mj-full-width-mobile {
+                width: auto !important;
+            }
+        }
+    </style>
+</head>
+
+<body style="word-spacing: normal; background-color: #f4f4f4">
+    <div style="margin:0px auto;max-width:600px;">
+
+        <table align="center" border="0" cellpadding="0" cellspacing="0" role="presentation" style="width:100%;">
+            <tbody>
+                <tr>
+                    <td
+                        style="direction:ltr;font-size:0px;padding:20px 0px 5px 0px;padding-bottom:0px;padding-left:0px;padding-right:0px;text-align:center;">
+                        <!--[if mso | IE]><table role="presentation" border="0" cellpadding="0" cellspacing="0"><tr><td class="" style="vertical-align:top;width:600px;" ><![endif]-->
+
+                        <div class="mj-column-per-100 mj-outlook-group-fix"
+                            style="font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:100%;">
+
+                            <table border="0" cellpadding="0" cellspacing="0" role="presentation"
+                                style="vertical-align:top;" width="100%">
+                                <tbody>
+
+                                    <tr>
+                                        <td align="center"
+                                            style="background:#ffffff;font-size:0px;padding:10px 25px 10px 25px;padding-right:25px;padding-left:25px;word-break:break-word;">
+
+                                            <table border="0" cellpadding="0" cellspacing="0" role="presentation"
+                                                style="border-collapse:collapse;border-spacing:0px;">
+                                                <tbody>
+                                                    <tr>
+                                                        <td style="width:550px;">
+
+                                                            <a href="https://manifold.markets" target="_blank">
+
+                                                                <img alt="banner logo" height="auto"
+                                                                    src="https://manifold.markets/logo-banner.png"
+                                                                    style="border:none;display:block;outline:none;text-decoration:none;height:auto;width:100%;font-size:13px;"
+                                                                    title="" width="550">
+
+                                                            </a>
+
+                                                        </td>
+                                                    </tr>
+                                                </tbody>
+                                            </table>
+
+                                        </td>
+                                    </tr>
+
+
+
+                                </tbody>
+                            </table>
+
+                        </div>
+
+                        <!--[if mso | IE]></td></tr></table><![endif]-->
+                    </td>
+                </tr>
+            </tbody>
+        </table>
+
+    </div>
+    <!--[if mso | IE]></td></tr></table><table align="center" border="0" cellpadding="0" cellspacing="0" class="" role="presentation" style="width:600px;" width="600" bgcolor="#ffffff" ><tr><td style="line-height:0px;font-size:0px;mso-line-height-rule:exactly;"><![endif]-->
+    <div style="
+          background: #ffffff;
+          background-color: #ffffff;
+          margin: 0px auto;
+          max-width: 600px;
+        ">
+        <table align="center" border="0" cellpadding="0" cellspacing="0" role="presentation"
+            style="background: #ffffff; background-color: #ffffff; width: 100%">
+            <tbody>
+
+                <tr>
+                    <td style="
+                  direction: ltr;
+                  font-size: 0px;
+                  padding: 20px 0px 0px 0px;
+                  padding-bottom: 0px;
+                  padding-left: 0px;
+                  padding-right: 0px;
+                  padding-top: 20px;
+                  text-align: center;
+                ">
+                        <!--[if mso | IE]><table role="presentation" border="0" cellpadding="0" cellspacing="0"><tr><td class="" style="vertical-align:top;width:600px;" ><![endif]-->
+                        <div class="mj-column-per-100 mj-outlook-group-fix" style="
+                    font-size: 0px;
+                    text-align: left;
+                    direction: ltr;
+                    display: inline-block;
+                    vertical-align: top;
+                    width: 100%;
+                  ">
+                            <table border="0" cellpadding="0" cellspacing="0" role="presentation"
+                                style="vertical-align: top" width="100%">
+                                <tbody>
+                                    <tr>
+                                        <td align="left"
+                                            style="font-size:0px;padding:10px 25px;padding-top:0px;padding-bottom:0px;word-break:break-word;">
+                                            <div
+                                                style="font-family:Arial, sans-serif;font-size:18px;letter-spacing:normal;line-height:1;text-align:left;color:#000000;">
+                                                <p class="text-build-content"
+                                                    style="line-height: 24px; margin: 10px 0; margin-top: 10px; margin-bottom: 10px;"
+                                                    data-testid="4XoHRGw1Y"><span
+                                                        style="color:#000000;font-family:Arial, Helvetica, sans-serif;font-size:18px;">
+                                                    </span>Hi {{name}},</p>
+                                            </div>
+                                        </td>
+                                    </tr>
+
+                                    <tr>
+                                        <td align="left"
+                                            style="font-size:0px;padding:10px 25px;padding-top:0px;padding-bottom:20px;word-break:break-word;">
+                                            <div
+                                                style="font-family:Arial, sans-serif;font-size:18px;letter-spacing:normal;line-height:1;text-align:left;color:#000000;">
+                                                <p class="text-build-content"
+                                                    style="line-height: 24px; margin: 10px 0; margin-top: 10px; margin-bottom: 10px;"
+                                                    data-testid="4XoHRGw1Y"><span
+                                                        style="color:#000000;font-family:Arial, Helvetica, sans-serif;font-size:18px;">
+                                                        Here is a selection of markets on Manifold you might find
+                                                        interesting!</span></p>
+                                            </div>
+                                        </td>
+                                    </tr>
+
+                                    <tr>
+                                        <td align="center"
+                                            style="font-size:0px;padding:10px 25px;padding-top:0px;padding-bottom:20px;word-break:break-word;">
+                                            <div
+                                                style="font-family:Arial, sans-serif;font-size:18px;letter-spacing:normal;line-height:1;text-align:center;color:#000000;">
+                                                <a href="{{question1Link}}">
+                                                    <img alt="{{question1Title}}" width="375" height="200"
+                                                        style="border: 1px solid #4337c9;" src="{{question1ImgSrc}}">
+                                                </a>
+                                            </div>
+
+                                            <table cellspacing="0" cellpadding="0">
+                                                <tr>
+                                                    <td style="border-radius: 4px;" bgcolor="#4337c9">
+                                                        <a href="{{question1Link}}" target="_blank"
+                                                            style="padding: 6px 10px; border: 1px solid #4337c9;border-radius: 12px;font-family: Helvetica, Arial, sans-serif;font-size: 16px; color: #ffffff;text-decoration: none;font-weight:semibold;display: inline-block;">
+                                                            View market
+                                                        </a>
+                                                    </td>
+                                                </tr>
+                                            </table>
+
+                                        </td>
+                                    </tr>
+
+                                    <tr>
+                                        <td align="center"
+                                            style="font-size:0px;padding:10px 25px;padding-top:0px;padding-bottom:20px;word-break:break-word;">
+                                            <div
+                                                style="font-family:Arial, sans-serif;font-size:18px;letter-spacing:normal;line-height:1;text-align:center;color:#000000;">
+                                                <a href="{{question2Link}}">
+                                                    <img alt="{{question2Title}}" width="375" height="200"
+                                                        style="border: 1px solid #4337c9;" src="{{question2ImgSrc}}">
+                                                </a>
+                                            </div>
+
+                                            <table cellspacing="0" cellpadding="0">
+                                                <tr>
+                                                    <td style="border-radius: 4px;" bgcolor="#4337c9">
+                                                        <a href="{{question2Link}}" target="_blank"
+                                                            style="padding: 6px 10px; border: 1px solid #4337c9;border-radius: 12px;font-family: Helvetica, Arial, sans-serif;font-size: 16px; color: #ffffff;text-decoration: none;font-weight:semibold;display: inline-block;">
+                                                            View market
+                                                        </a>
+                                                    </td>
+                                                </tr>
+                                            </table>
+
+                                        </td>
+                                    </tr>
+
+                                    <tr>
+                                        <td align="center"
+                                            style="font-size:0px;padding:10px 25px;padding-top:0px;padding-bottom:20px;word-break:break-word;">
+                                            <div
+                                                style="font-family:Arial, sans-serif;font-size:18px;letter-spacing:normal;line-height:1;text-align:center;color:#000000;">
+                                                <a href="{{question3Link}}">
+                                                    <img alt="{{question3Title}}" width="375" height="200"
+                                                        style="border: 1px solid #4337c9;" src="{{question3ImgSrc}}">
+                                                </a>
+                                            </div>
+
+                                            <table cellspacing="0" cellpadding="0">
+                                                <tr>
+                                                    <td style="border-radius: 4px;" bgcolor="#4337c9">
+                                                        <a href="{{question3Link}}" target="_blank"
+                                                            style="padding: 6px 10px; border: 1px solid #4337c9;border-radius: 12px;font-family: Helvetica, Arial, sans-serif;font-size: 16px; color: #ffffff;text-decoration: none;font-weight:semibold;display: inline-block;">
+                                                            View market
+                                                        </a>
+                                                    </td>
+                                                </tr>
+                                            </table>
+
+                                        </td>
+                                    </tr>
+
+                                    <tr>
+                                        <td align="center"
+                                            style="font-size:0px;padding:10px 25px;padding-top:0px;padding-bottom:20px;word-break:break-word;">
+                                            <div
+                                                style="font-family:Arial, sans-serif;font-size:18px;letter-spacing:normal;line-height:1;text-align:center;color:#000000;">
+                                                <a href="{{question4Link}}">
+                                                    <img alt="{{question4Title}}" width="375" height="200"
+                                                        style="border: 1px solid #4337c9;" src="{{question4ImgSrc}}">
+                                                </a>
+                                            </div>
+
+                                            <table cellspacing="0" cellpadding="0">
+                                                <tr>
+                                                    <td style="border-radius: 4px;" bgcolor="#4337c9">
+                                                        <a href="{{question4Link}}" target="_blank"
+                                                            style="padding: 6px 10px; border: 1px solid #4337c9;border-radius: 12px;font-family: Helvetica, Arial, sans-serif;font-size: 16px; color: #ffffff;text-decoration: none;font-weight:semibold;display: inline-block;">
+                                                            View market
+                                                        </a>
+                                                    </td>
+                                                </tr>
+                                            </table>
+
+                                        </td>
+                                    </tr>
+
+                                    <tr>
+                                        <td align="center"
+                                            style="font-size:0px;padding:10px 25px;padding-top:0px;padding-bottom:20px;word-break:break-word;">
+                                            <div
+                                                style="font-family:Arial, sans-serif;font-size:18px;letter-spacing:normal;line-height:1;text-align:center;color:#000000;">
+                                                <a href="{{question5Link}}">
+                                                    <img alt="{{question5Title}}" width="375" height="200"
+                                                        style="border: 1px solid #4337c9;" src="{{question5ImgSrc}}">
+                                                </a>
+                                            </div>
+
+                                            <table cellspacing="0" cellpadding="0">
+                                                <tr>
+                                                    <td style="border-radius: 4px;" bgcolor="#4337c9">
+                                                        <a href="{{question5Link}}" target="_blank"
+                                                            style="padding: 6px 10px; border: 1px solid #4337c9;border-radius: 12px;font-family: Helvetica, Arial, sans-serif;font-size: 16px; color: #ffffff;text-decoration: none;font-weight:semibold;display: inline-block;">
+                                                            View market
+                                                        </a>
+                                                    </td>
+                                                </tr>
+                                            </table>
+
+                                        </td>
+                                    </tr>
+
+                                    <tr>
+                                        <td align="center"
+                                            style="font-size:0px;padding:10px 25px;padding-top:0px;padding-bottom:20px;word-break:break-word;">
+                                            <div
+                                                style="font-family:Arial, sans-serif;font-size:18px;letter-spacing:normal;line-height:1;text-align:center;color:#000000;">
+                                                <a href="{{question6Link}}">
+                                                    <img alt="{{question6Title}}" width="375" height="200"
+                                                        style="border: 1px solid #4337c9;" src="{{question6ImgSrc}}">
+                                                </a>
+                                            </div>
+
+                                            <table cellspacing="0" cellpadding="0">
+                                                <tr>
+                                                    <td style="border-radius: 4px;" bgcolor="#4337c9">
+                                                        <a href="{{question6Link}}" target="_blank"
+                                                            style="padding: 6px 10px; border: 1px solid #4337c9;border-radius: 12px;font-family: Helvetica, Arial, sans-serif;font-size: 16px; color: #ffffff;text-decoration: none;font-weight:semibold;display: inline-block;">
+                                                            View market
+                                                        </a>
+                                                    </td>
+                                                </tr>
+                                            </table>
+
+                                        </td>
+                                    </tr>
+                                </tbody>
+                            </table>
+                        </div>
+                        <!--[if mso | IE]></td></tr></table><![endif]-->
+                    </td>
+                </tr>
+            </tbody>
+        </table>
+    </div>
+
+    <!--[if mso | IE]></td></tr></table><table align="center" border="0" cellpadding="0" cellspacing="0" class="" role="presentation" style="width:600px;" width="600" ><tr><td style="line-height:0px;font-size:0px;mso-line-height-rule:exactly;"><![endif]-->
+    <div style="margin: 0px auto; max-width: 600px">
+        <table align="center" border="0" cellpadding="0" cellspacing="0" role="presentation" style="width: 100%">
+            <tbody>
+                <tr>
+                    <td style="
+                  direction: ltr;
+                  font-size: 0px;
+                  padding: 0 0 20px 0;
+                  text-align: center;
+                ">
+
+                        <!--[if mso | IE]></td></tr></table><table align="center" border="0" cellpadding="0" cellspacing="0" class="" role="presentation" style="width:600px;" width="600" ><tr><td style="line-height:0px;font-size:0px;mso-line-height-rule:exactly;"><![endif]-->
+                        <div style="margin: 0px auto; max-width: 600px">
+                            <table align="center" border="0" cellpadding="0" cellspacing="0" role="presentation"
+                                style="width: 100%">
+                                <tbody>
+                                    <tr>
+                                        <td style="
+                  direction: ltr;
+                  font-size: 0px;
+                  padding: 20px 0px 20px 0px;
+                  text-align: center;
+                ">
+                                            <!--[if mso | IE]><table role="presentation" border="0" cellpadding="0" cellspacing="0"><tr><td class="" style="vertical-align:top;width:600px;" ><![endif]-->
+                                            <div class="mj-column-per-100 mj-outlook-group-fix" style="
+                    font-size: 0px;
+                    text-align: left;
+                    direction: ltr;
+                    display: inline-block;
+                    vertical-align: top;
+                    width: 100%;
+                  ">
+                                                <table border="0" cellpadding="0" cellspacing="0" role="presentation"
+                                                    width="100%">
+                                                    <tbody>
+                                                        <tr>
+                                                            <td style="vertical-align: top; padding: 0">
+                                                                <table border="0" cellpadding="0" cellspacing="0"
+                                                                    role="presentation" width="100%">
+                                                                    <tbody>
+                                                                        <tr>
+                                                                            <td align="center" style="
+                                    font-size: 0px;
+                                    padding: 10px 25px;
+                                    word-break: break-word;
+                                  ">
+                                                                                <div style="
+                                      font-family: Ubuntu, Helvetica, Arial,
+                                        sans-serif;
+                                      font-size: 11px;
+                                      line-height: 22px;
+                                      text-align: center;
+                                      color: #000000;
+                                    ">
+                                                                                    <p style="margin: 10px 0">
+                                                                                        This e-mail has been sent to
+                                                                                        {{name}},
+                                                                                        <a href="{{unsubscribeLink}}"
+                                                                                            style="
+                                          color: inherit;
+                                          text-decoration: none;
+                                        " target="_blank">click here to unsubscribe</a>.
+                                                                                    </p>
+                                                                                </div>
+                                                                            </td>
+                                                                        </tr>
+                                                                        <tr>
+                                                                            <td align="center" style="
+                                    font-size: 0px;
+                                    padding: 10px 25px;
+                                    word-break: break-word;
+                                  "></td>
+                                                                        </tr>
+                                                                    </tbody>
+                                                                </table>
+                                                            </td>
+                                                        </tr>
+                                                    </tbody>
+                                                </table>
+                                            </div>
+                                            <!--[if mso | IE]></td></tr></table><![endif]-->
+                                        </td>
+                                    </tr>
+                                </tbody>
+                            </table>
+                        </div>
+                        <!--[if mso | IE]></td></tr></table><![endif]-->
+    </div>
+</body>
+
+</html>

functions/src/emails.ts

@@ -20,6 +20,7 @@ import { sendTemplateEmail, sendTextEmail } from './send-email'
 import { getPrivateUser, getUser } from './utils'
 import { getFunctionUrl } from '../../common/api'
 import { richTextToString } from '../../common/util/parse'
+import { buildCardUrl, getOpenGraphProps } from '../../common/contract-details'
 
 const UNSUBSCRIBE_ENDPOINT = getFunctionUrl('unsubscribe')
 
@@ -460,3 +461,61 @@ export const sendNewAnswerEmail = async (
     { from }
   )
 }
+
+export const sendInterestingMarketsEmail = async (
+  user: User,
+  privateUser: PrivateUser,
+  contractsToSend: Contract[],
+  deliveryTime?: string
+) => {
+  if (
+    !privateUser ||
+    !privateUser.email ||
+    privateUser?.unsubscribedFromWeeklyTrendingEmails
+  )
+    return
+
+  const emailType = 'weekly-trending'
+  const unsubscribeUrl = `${UNSUBSCRIBE_ENDPOINT}?id=${privateUser.id}&type=${emailType}`
+
+  const { name } = user
+  const firstName = name.split(' ')[0]
+
+  await sendTemplateEmail(
+    privateUser.email,
+    `${contractsToSend[0].question} & 5 more interesting markets on Manifold`,
+    'interesting-markets',
+    {
+      name: firstName,
+      unsubscribeLink: unsubscribeUrl,
+
+      question1Title: contractsToSend[0].question,
+      question1Link: contractUrl(contractsToSend[0]),
+      question1ImgSrc: imageSourceUrl(contractsToSend[0]),
+      question2Title: contractsToSend[1].question,
+      question2Link: contractUrl(contractsToSend[1]),
+      question2ImgSrc: imageSourceUrl(contractsToSend[1]),
+      question3Title: contractsToSend[2].question,
+      question3Link: contractUrl(contractsToSend[2]),
+      question3ImgSrc: imageSourceUrl(contractsToSend[2]),
+      question4Title: contractsToSend[3].question,
+      question4Link: contractUrl(contractsToSend[3]),
+      question4ImgSrc: imageSourceUrl(contractsToSend[3]),
+      question5Title: contractsToSend[4].question,
+      question5Link: contractUrl(contractsToSend[4]),
+      question5ImgSrc: imageSourceUrl(contractsToSend[4]),
+      question6Title: contractsToSend[5].question,
+      question6Link: contractUrl(contractsToSend[5]),
+      question6ImgSrc: imageSourceUrl(contractsToSend[5]),
+    },
+    deliveryTime ? { 'o:deliverytime': deliveryTime } : undefined
+  )
+}
+
+function contractUrl(contract: Contract) {
+  return `https://manifold.markets/${contract.creatorUsername}/${contract.slug}`
+}
+
+function imageSourceUrl(contract: Contract) {
+  return buildCardUrl(getOpenGraphProps(contract))
+}

functions/src/index.ts

@@ -25,8 +25,10 @@ export * from './on-create-comment-on-group'
 export * from './on-create-txn'
 export * from './on-delete-group'
 export * from './score-contracts'
+export * from './weekly-markets-emails'
 export * from './reset-betting-streaks'
 
+
 // v2
 export * from './health'
 export * from './transact'

functions/src/unsubscribe.ts

@@ -21,6 +21,7 @@ export const unsubscribe: EndpointDefinition = {
         'market-comment',
         'market-answer',
         'generic',
+        'weekly-trending',
       ].includes(type)
     ) {
       res.status(400).send('Invalid type parameter.')
@@ -49,6 +50,9 @@ export const unsubscribe: EndpointDefinition = {
       ...(type === 'generic' && {
         unsubscribedFromGenericEmails: true,
       }),
+      ...(type === 'weekly-trending' && {
+        unsubscribedFromWeeklyTrendingEmails: true,
+      }),
     }
 
     await firestore.collection('private-users').doc(id).update(update)

functions/src/utils.ts

@@ -88,6 +88,12 @@ export const getPrivateUser = (userId: string) => {
   return getDoc<PrivateUser>('private-users', userId)
 }
 
+export const getAllPrivateUsers = async () => {
+  const firestore = admin.firestore()
+  const users = await firestore.collection('private-users').get()
+  return users.docs.map((doc) => doc.data() as PrivateUser)
+}
+
 export const getUserByUsername = async (username: string) => {
   const firestore = admin.firestore()
   const snap = await firestore

functions/src/weekly-markets-emails.ts

@@ -0,0 +1,82 @@
+import * as functions from 'firebase-functions'
+import * as admin from 'firebase-admin'
+
+import { Contract } from '../../common/contract'
+import { getPrivateUser, getUser, getValues, isProd, log } from './utils'
+import { filterDefined } from '../../common/util/array'
+import { sendInterestingMarketsEmail } from './emails'
+import { createRNG, shuffle } from '../../common/util/random'
+import { DAY_MS } from '../../common/util/time'
+
+export const weeklyMarketsEmails = functions
+  .runWith({ secrets: ['MAILGUN_KEY'] })
+  .pubsub.schedule('every 1 minutes')
+  .onRun(async () => {
+    await sendTrendingMarketsEmailsToAllUsers()
+  })
+
+const firestore = admin.firestore()
+
+export async function getTrendingContracts() {
+  return await getValues<Contract>(
+    firestore
+      .collection('contracts')
+      .where('isResolved', '==', false)
+      .where('closeTime', '>', Date.now() + DAY_MS)
+      .where('visibility', '==', 'public')
+      .orderBy('closeTime', 'asc')
+      .orderBy('popularityScore', 'desc')
+      .limit(15)
+  )
+}
+
+async function sendTrendingMarketsEmailsToAllUsers() {
+  const numEmailsToSend = 6
+  // const privateUsers = await getAllPrivateUsers()
+  // uses dev ian's private user for testing
+  const privateUser = await getPrivateUser(
+    isProd() ? 'AJwLWoo3xue32XIiAVrL5SyR1WB2' : '6hHpzvRG0pMq8PNJs7RZj2qlZGn2'
+  )
+  const privateUsers = filterDefined([privateUser])
+  // get all users that haven't unsubscribed from weekly emails
+  const privateUsersToSendEmailsTo = privateUsers.filter((user) => {
+    return !user.unsubscribedFromWeeklyTrendingEmails
+  })
+  const trendingContracts = (await getTrendingContracts()).filter(
+    (contract) =>
+      !(
+        contract.question.toLowerCase().includes('trump') &&
+        contract.question.toLowerCase().includes('president')
+      )
+  )
+  for (const privateUser of privateUsersToSendEmailsTo) {
+    if (!privateUser.email) {
+      log(`No email for ${privateUser.username}`)
+      continue
+    }
+    const contractsAvailableToSend = trendingContracts.filter((contract) => {
+      return !contract.uniqueBettorIds?.includes(privateUser.id)
+    })
+    if (contractsAvailableToSend.length < numEmailsToSend) {
+      log('not enough new, unbet-on contracts to send to user', privateUser.id)
+      continue
+    }
+    // choose random subset of contracts to send to user
+    const contractsToSend = chooseRandomSubset(
+      contractsAvailableToSend,
+      numEmailsToSend
+    )
+
+    const user = await getUser(privateUser.id)
+    if (!user) continue
+
+    await sendInterestingMarketsEmail(user, privateUser, contractsToSend)
+  }
+}
+
+function chooseRandomSubset(contracts: Contract[], count: number) {
+  const fiveMinutes = 5 * 60 * 1000
+  const seed = Math.round(Date.now() / fiveMinutes).toString()
+  shuffle(contracts, createRNG(seed))
+  return contracts.slice(0, count)
+}

web/components/SEO.tsx

@@ -1,61 +1,7 @@
 import { ReactNode } from 'react'
 import Head from 'next/head'
 import { Challenge } from 'common/challenge'
-
-export type OgCardProps = {
-  question: string
-  probability?: string
-  metadata: string
-  creatorName: string
-  creatorUsername: string
-  creatorAvatarUrl?: string
-  numericValue?: string
-}
-
-function buildCardUrl(props: OgCardProps, challenge?: Challenge) {
-  const {
-    creatorAmount,
-    acceptances,
-    acceptorAmount,
-    creatorOutcome,
-    acceptorOutcome,
-  } = challenge || {}
-  const { userName, userAvatarUrl } = acceptances?.[0] ?? {}
-
-  const probabilityParam =
-    props.probability === undefined
-      ? ''
-      : `&probability=${encodeURIComponent(props.probability ?? '')}`
-
-  const numericValueParam =
-    props.numericValue === undefined
-      ? ''
-      : `&numericValue=${encodeURIComponent(props.numericValue ?? '')}`
-
-  const creatorAvatarUrlParam =
-    props.creatorAvatarUrl === undefined
-      ? ''
-      : `&creatorAvatarUrl=${encodeURIComponent(props.creatorAvatarUrl ?? '')}`
-
-  const challengeUrlParams = challenge
-    ? `&creatorAmount=${creatorAmount}&creatorOutcome=${creatorOutcome}` +
-      `&challengerAmount=${acceptorAmount}&challengerOutcome=${acceptorOutcome}` +
-      `&acceptedName=${userName ?? ''}&acceptedAvatarUrl=${userAvatarUrl ?? ''}`
-    : ''
-
-  // URL encode each of the props, then add them as query params
-  return (
-    `https://manifold-og-image.vercel.app/m.png` +
-    `?question=${encodeURIComponent(props.question)}` +
-    probabilityParam +
-    numericValueParam +
-    `&metadata=${encodeURIComponent(props.metadata)}` +
-    `&creatorName=${encodeURIComponent(props.creatorName)}` +
-    creatorAvatarUrlParam +
-    `&creatorUsername=${encodeURIComponent(props.creatorUsername)}` +
-    challengeUrlParams
-  )
-}
+import { buildCardUrl, OgCardProps } from 'common/contract-details'
 
 export function SEO(props: {
   title: string

web/components/contract/contract-card-preview.tsx

@@ -1,44 +0,0 @@
-import { Contract } from 'common/contract'
-import { getBinaryProbPercent } from 'web/lib/firebase/contracts'
-import { richTextToString } from 'common/util/parse'
-import { contractTextDetails } from 'web/components/contract/contract-details'
-import { getFormattedMappedValue } from 'common/pseudo-numeric'
-import { getProbability } from 'common/calculate'
-
-export const getOpenGraphProps = (contract: Contract) => {
-  const {
-    resolution,
-    question,
-    creatorName,
-    creatorUsername,
-    outcomeType,
-    creatorAvatarUrl,
-    description: desc,
-  } = contract
-  const probPercent =
-    outcomeType === 'BINARY' ? getBinaryProbPercent(contract) : undefined
-
-  const numericValue =
-    outcomeType === 'PSEUDO_NUMERIC'
-      ? getFormattedMappedValue(contract)(getProbability(contract))
-      : undefined
-
-  const stringDesc = typeof desc === 'string' ? desc : richTextToString(desc)
-
-  const description = resolution
-    ? `Resolved ${resolution}. ${stringDesc}`
-    : probPercent
-    ? `${probPercent} chance. ${stringDesc}`
-    : stringDesc
-
-  return {
-    question,
-    probability: probPercent,
-    metadata: contractTextDetails(contract),
-    creatorName,
-    creatorUsername,
-    creatorAvatarUrl,
-    description,
-    numericValue,
-  }
-}

web/components/contract/contract-details.tsx

@@ -9,11 +9,7 @@ import {
 import { Row } from '../layout/row'
 import { formatMoney } from 'common/util/format'
 import { UserLink } from '../user-page'
-import {
-  Contract,
-  contractMetrics,
-  updateContract,
-} from 'web/lib/firebase/contracts'
+import { Contract, updateContract } from 'web/lib/firebase/contracts'
 import dayjs from 'dayjs'
 import { DateTimeTooltip } from '../datetime-tooltip'
 import { fromNow } from 'web/lib/util/time'
@@ -35,6 +31,7 @@ import { SiteLink } from 'web/components/site-link'
 import { groupPath } from 'web/lib/firebase/groups'
 import { insertContent } from '../editor/utils'
 import clsx from 'clsx'
+import { contractMetrics } from 'common/contract-details'
 
 export type ShowTime = 'resolve-date' | 'close-date'
 
@@ -245,25 +242,6 @@ export function ContractDetails(props: {
   )
 }
 
-// String version of the above, to send to the OpenGraph image generator
-export function contractTextDetails(contract: Contract) {
-  const { closeTime, tags } = contract
-  const { createdDate, resolvedDate, volumeLabel } = contractMetrics(contract)
-
-  const hashtags = tags.map((tag) => `#${tag}`)
-
-  return (
-    `${resolvedDate ? `${createdDate} - ${resolvedDate}` : createdDate}` +
-    (closeTime
-      ? ` • ${closeTime > Date.now() ? 'Closes' : 'Closed'} ${dayjs(
-          closeTime
-        ).format('MMM D, h:mma')}`
-      : '') +
-    ` • ${volumeLabel}` +
-    (hashtags.length > 0 ? ` • ${hashtags.join(' ')}` : '')
-  )
-}
-
 function EditableCloseDate(props: {
   closeTime: number
   contract: Contract

web/components/contract/quick-bet.tsx

@@ -23,7 +23,7 @@ import { useState } from 'react'
 import toast from 'react-hot-toast'
 import { useUserContractBets } from 'web/hooks/use-user-bets'
 import { placeBet } from 'web/lib/firebase/api'
-import { getBinaryProb, getBinaryProbPercent } from 'web/lib/firebase/contracts'
+import { getBinaryProbPercent } from 'web/lib/firebase/contracts'
 import TriangleDownFillIcon from 'web/lib/icons/triangle-down-fill-icon'
 import TriangleFillIcon from 'web/lib/icons/triangle-fill-icon'
 import { Col } from '../layout/col'
@@ -34,6 +34,7 @@ import { calculateCpmmSale, getCpmmProbability } from 'common/calculate-cpmm'
 import { track } from 'web/lib/service/analytics'
 import { formatNumericProbability } from 'common/pseudo-numeric'
 import { useUnfilledBets } from 'web/hooks/use-bets'
+import { getBinaryProb } from 'common/contract-details'
 
 const BET_SIZE = 10
 

web/components/feed/feed-items.tsx

@@ -11,7 +11,6 @@ import clsx from 'clsx'
 import { OutcomeLabel } from '../outcome-label'
 import {
   Contract,
-  contractMetrics,
   contractPath,
   tradingAllowed,
 } from 'web/lib/firebase/contracts'
@@ -38,6 +37,7 @@ import { FeedLiquidity } from './feed-liquidity'
 import { SignUpPrompt } from '../sign-up-prompt'
 import { User } from 'common/user'
 import { PlayMoneyDisclaimer } from '../play-money-disclaimer'
+import { contractMetrics } from 'common/contract-details'
 
 export function FeedItems(props: {
   contract: Contract

web/lib/firebase/contracts.ts

@@ -1,4 +1,3 @@
-import dayjs from 'dayjs'
 import {
   collection,
   deleteDoc,
@@ -17,14 +16,13 @@ import { sortBy, sum } from 'lodash'
 
 import { coll, getValues, listenForValue, listenForValues } from './utils'
 import { BinaryContract, Contract } from 'common/contract'
-import { getDpmProbability } from 'common/calculate-dpm'
 import { createRNG, shuffle } from 'common/util/random'
-import { getCpmmProbability } from 'common/calculate-cpmm'
 import { formatMoney, formatPercent } from 'common/util/format'
 import { DAY_MS } from 'common/util/time'
 import { Bet } from 'common/bet'
 import { Comment } from 'common/comment'
 import { ENV_CONFIG } from 'common/envs/constants'
+import { getBinaryProb } from 'common/contract-details'
 
 export const contracts = coll<Contract>('contracts')
 
@@ -49,20 +47,6 @@ export function contractUrl(contract: Contract) {
   return `https://${ENV_CONFIG.domain}${contractPath(contract)}`
 }
 
-export function contractMetrics(contract: Contract) {
-  const { createdTime, resolutionTime, isResolved } = contract
-
-  const createdDate = dayjs(createdTime).format('MMM D')
-
-  const resolvedDate = isResolved
-    ? dayjs(resolutionTime).format('MMM D')
-    : undefined
-
-  const volumeLabel = `${formatMoney(contract.volume)} bet`
-
-  return { volumeLabel, createdDate, resolvedDate }
-}
-
 export function contractPool(contract: Contract) {
   return contract.mechanism === 'cpmm-1'
     ? formatMoney(contract.totalLiquidity)
@@ -71,17 +55,6 @@ export function contractPool(contract: Contract) {
     : 'Empty pool'
 }
 
-export function getBinaryProb(contract: BinaryContract) {
-  const { pool, resolutionProbability, mechanism } = contract
-
-  return (
-    resolutionProbability ??
-    (mechanism === 'cpmm-1'
-      ? getCpmmProbability(pool, contract.p)
-      : getDpmProbability(contract.totalShares))
-  )
-}
-
 export function getBinaryProbPercent(contract: BinaryContract) {
   return formatPercent(getBinaryProb(contract))
 }

web/pages/[username]/[contractSlug].tsx

@@ -36,13 +36,13 @@ import { AlertBox } from 'web/components/alert-box'
 import { useTracking } from 'web/hooks/use-tracking'
 import { CommentTipMap, useTipTxns } from 'web/hooks/use-tip-txns'
 import { useSaveReferral } from 'web/hooks/use-save-referral'
-import { getOpenGraphProps } from 'web/components/contract/contract-card-preview'
 import { User } from 'common/user'
 import { ContractComment } from 'common/comment'
 import { listUsers } from 'web/lib/firebase/users'
 import { FeedComment } from 'web/components/feed/feed-comments'
 import { Title } from 'web/components/title'
 import { FeedBet } from 'web/components/feed/feed-bets'
+import { getOpenGraphProps } from 'common/contract-details'
 
 export const getStaticProps = fromPropz(getStaticPropz)
 export async function getStaticPropz(props: {

web/pages/challenges/[username]/[contractSlug]/[challengeSlug].tsx

@@ -28,11 +28,11 @@ import { LoadingIndicator } from 'web/components/loading-indicator'
 import { useWindowSize } from 'web/hooks/use-window-size'
 import { Bet, listAllBets } from 'web/lib/firebase/bets'
 import { SEO } from 'web/components/SEO'
-import { getOpenGraphProps } from 'web/components/contract/contract-card-preview'
 import Custom404 from 'web/pages/404'
 import { useSaveReferral } from 'web/hooks/use-save-referral'
 import { BinaryContract } from 'common/contract'
 import { Title } from 'web/components/title'
+import { getOpenGraphProps } from 'common/contract-details'
 
 export const getStaticProps = fromPropz(getStaticPropz)