From b00951de19e7010efd39194e2c26efc00021e3ba Mon Sep 17 00:00:00 2001
From: Julian Boilen <julianboilen@gmail.com>
Date: Sat, 16 Sep 2023 12:49:02 -0400
Subject: [PATCH] Add map and image to story email

---
 .../templates/StoryUserEmailTemplateData.ts   |  3 ++
 .../business/stories/StoryUserEmailService.ts | 19 +++++++++
 .../src/business/utils/forgeStaticMapUrl.ts   | 39 +++++++++++++++++++
 3 files changed, 61 insertions(+)
 create mode 100644 backend/src/business/utils/forgeStaticMapUrl.ts

diff --git a/backend/src/business/email/templates/StoryUserEmailTemplateData.ts b/backend/src/business/email/templates/StoryUserEmailTemplateData.ts
index acee2b0a..c98dd3ea 100644
--- a/backend/src/business/email/templates/StoryUserEmailTemplateData.ts
+++ b/backend/src/business/email/templates/StoryUserEmailTemplateData.ts
@@ -3,6 +3,9 @@ export interface StoryEmailTemplateData {
   photoDescription: string;
   storyEditUrl: string;
   viewPhotoUrl: string;
+  photoThumbnailUrl: string;
+  mapImageUrl: string | null;
+  mapImageUrlRetina: string | null;
 }
 
 export interface StoryEmailMetadata {
diff --git a/backend/src/business/stories/StoryUserEmailService.ts b/backend/src/business/stories/StoryUserEmailService.ts
index 919c24b3..82118f3c 100644
--- a/backend/src/business/stories/StoryUserEmailService.ts
+++ b/backend/src/business/stories/StoryUserEmailService.ts
@@ -12,6 +12,7 @@ import {
   StoryEmailTemplateData,
 } from '../email/templates/StoryUserEmailTemplateData';
 import StoryUserRemovedTemplate from '../email/templates/StoryUserRemovedTemplate';
+import forgeStaticMapUrl from '../utils/forgeStaticMapUrl';
 import required from '../utils/required';
 import { createStoryToken } from './StoryTokenService';
 
@@ -62,12 +63,30 @@ function forgePhotoUrl(photo: Story['photo'], lngLat: Story['lngLat']): string {
   return storyEditUrl.toString();
 }
 
+function forgeImageThumbnailUrl(photo: Story['photo']): string {
+  return `https://photos.1940s.nyc/420-jpg/${photo.identifier}.jpg`;
+}
+
+function forgeMapImageUrl(
+  photo: Story['photo'],
+  lngLat: Story['lngLat'],
+  retina = false
+): string | null {
+  if (!lngLat) {
+    return null;
+  }
+  return forgeStaticMapUrl(photo.identifier, lngLat, 315, 315, 16, retina);
+}
+
 function forgeStoryTemplateContext(story: Story): StoryEmailTemplateData {
   return {
     storytellerName: required(story.storytellerName, 'storytellerName'),
     photoDescription: describePhoto(story.photo),
     storyEditUrl: forgeStoryEditUrl(story),
     viewPhotoUrl: forgePhotoUrl(story.photo, story.lngLat),
+    photoThumbnailUrl: forgeImageThumbnailUrl(story.photo),
+    mapImageUrl: forgeMapImageUrl(story.photo, story.lngLat, false),
+    mapImageUrlRetina: forgeMapImageUrl(story.photo, story.lngLat, true),
   };
 }
 
diff --git a/backend/src/business/utils/forgeStaticMapUrl.ts b/backend/src/business/utils/forgeStaticMapUrl.ts
new file mode 100644
index 00000000..ed27faac
--- /dev/null
+++ b/backend/src/business/utils/forgeStaticMapUrl.ts
@@ -0,0 +1,39 @@
+import LngLat from '../../enum/LngLat';
+
+const MAPBOX_USER = 'julianboilen';
+const MAPBOX_PK =
+  'pk.eyJ1IjoianVsaWFuYm9pbGVuIiwiYSI6ImNqb3A0ODg1djFkNGIza214aDQ0NjA2ZHYifQ.nw1o5FE0rdcN5DQLzRFQfQ';
+const MAP_STYLE_ID = 'ck5jrzrs11r1p1imia7qzjkm1';
+const LAYER_ID = 'photos-1940s';
+
+export default function forgeStaticMapUrl(
+  photoIdentifier: string,
+  lngLat: LngLat,
+  width: number,
+  height: number,
+  zoomLevel: number,
+  retina = false
+): string | null {
+  if (!lngLat) {
+    return null;
+  }
+  const { lng, lat } = lngLat;
+  const mapImageUrl: URL = new URL(
+    `/styles/v1/${MAPBOX_USER}/${MAP_STYLE_ID}/static/${lng},${lat},${zoomLevel}/${width}x${height}${
+      retina ? '@2x' : ''
+    }}`,
+    'https://api.mapbox.com'
+  );
+
+  const mapImageUrlParams: URLSearchParams = new URLSearchParams();
+  mapImageUrlParams.append('access_token', MAPBOX_PK);
+  mapImageUrlParams.append(
+    'setfilter',
+    `["==", ["get", "photoIdentifier"], "${photoIdentifier}"]`
+  );
+  mapImageUrlParams.append('layer_id', LAYER_ID);
+
+  mapImageUrl.search = mapImageUrlParams.toString();
+
+  return mapImageUrl.toString();
+}