From d153d53660a64a2761d8c1fd5a8a438c366e5837 Mon Sep 17 00:00:00 2001
From: Joe Germuska <joe@germuska.com>
Date: Fri, 11 Oct 2024 10:58:17 -0500
Subject: [PATCH] begin to support JSON export

---
 src/js/core/ConfigFactory.js |  2 +-
 src/js/index.js              |  9 +++------
 src/js/timeline/Timeline.js  | 14 ++++++++++++--
 3 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/src/js/core/ConfigFactory.js b/src/js/core/ConfigFactory.js
index 6b1bc4fa9..4b42d03b0 100644
--- a/src/js/core/ConfigFactory.js
+++ b/src/js/core/ConfigFactory.js
@@ -223,7 +223,7 @@ var buildGoogleFeedURL = function(key, api_version) {
     }
 }
 
-async function jsonFromGoogleURL(google_url, options) {
+export async function jsonFromGoogleURL(google_url, options) {
 
     if (!options['sheets_proxy']) {
         throw new TLError("Proxy option must be set to read data from Google")
diff --git a/src/js/index.js b/src/js/index.js
index dbabe35cc..95fb50689 100644
--- a/src/js/index.js
+++ b/src/js/index.js
@@ -1,7 +1,4 @@
 import "../less/TL.Timeline.less"
-export { Timeline }
-from "./timeline/Timeline"
-export { parseGoogleSpreadsheetURL }
-from "./core/ConfigFactory"
-export { lookupMediaType }
-from "./media/MediaType"
\ No newline at end of file
+export { Timeline, exportJSON } from "./timeline/Timeline"
+export { parseGoogleSpreadsheetURL } from "./core/ConfigFactory"
+export { lookupMediaType } from "./media/MediaType"
diff --git a/src/js/timeline/Timeline.js b/src/js/timeline/Timeline.js
index 971060970..08cfb3be8 100644
--- a/src/js/timeline/Timeline.js
+++ b/src/js/timeline/Timeline.js
@@ -5,7 +5,7 @@ import Message from "../ui/Message"
 import { Language, fallback, loadLanguage } from "../language/Language"
 import { I18NMixins } from "../language/I18NMixins";
 import Events from "../core/Events";
-import { makeConfig } from "../core/ConfigFactory"
+import { makeConfig, jsonFromGoogleURL } from "../core/ConfigFactory"
 import { TimelineConfig } from "../core/TimelineConfig"
 import { TimeNav } from "../timenav/TimeNav"
 import * as Browser from "../core/Browser"
@@ -1018,4 +1018,14 @@ class Timeline {
 
 classMixin(Timeline, I18NMixins, Events)
 
-export { Timeline }
+async function exportJSON(url, proxy_url) {
+
+    if (!proxy_url) {
+        proxy_url = 'https://sheets-proxy.knightlab.com/proxy/'
+    }
+
+    let json = await jsonFromGoogleURL(url, {sheets_proxy: proxy_url})
+    return json
+}
+
+export { Timeline, exportJSON }