From b6b30df542f982c39558ce4b886e07f38c361f2c Mon Sep 17 00:00:00 2001
From: Emily Doherty <git@emily.sh>
Date: Sat, 16 Nov 2024 17:53:57 -0800
Subject: [PATCH] Add option to generate overlay URL

This is going to be expanded upon in future releases, for now it's hardcoded to use just the previous time overlay

(cherry picked from commit 14b80dfea6bc93333f3d4e072e206017772de5de)
---
 src/index.js   | 17 ++++++++++++++++-
 src/overlay.js | 15 ++++++++++++++-
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/src/index.js b/src/index.js
index cdf5453..ce34b0d 100644
--- a/src/index.js
+++ b/src/index.js
@@ -6,7 +6,7 @@ import fetchData from "./fetchData";
 import {updateHighTime} from "./highTime";
 import {updateLowTime} from "./lowTime";
 import {addLoader, removeLoader} from "./loader";
-import {allowOverlay, forceOverlayOff, isOverlaySelected} from "./overlay";
+import {allowOverlay, forceOverlayOff, forceOverlayOn, isOverlayAllowed, isOverlaySelected} from "./overlay";
 import TokenChart from "./tokenChart";
 import Datum from "./datum";
 
@@ -212,6 +212,15 @@ function detectZeroQuery(urlSearchParams) {
     toggleStartYAtZero();
 }
 
+function detectOverlayQuery(urlSearchParams) {
+    const enableOverlay = urlSearchParams.get('overlay') === 'previous_time';
+    if (enableOverlay) {
+        forceOverlayOn();
+    } else {
+        forceOverlayOff();
+    }
+}
+
 function detectURLQuery() {
     const urlSearchParams = new URLSearchParams(window.location.search);
     if (urlSearchParams.has('region')) {
@@ -226,6 +235,9 @@ function detectURLQuery() {
     if (urlSearchParams.has('startAtZero')) {
         detectZeroQuery(urlSearchParams)
     }
+    if (urlSearchParams.has('overlay')) {
+        detectOverlayQuery(urlSearchParams);
+    }
 }
 
 function buildDeepLinksURL() {
@@ -242,6 +254,9 @@ function buildDeepLinksURL() {
     if (startYAtZero !== false){
         url += `startAtZero=${startYAtZero}&`
     }
+    if (isOverlaySelected()){
+        url += `overlay=previous_time&`
+    }
     return url
 }
 
diff --git a/src/overlay.js b/src/overlay.js
index 9300a98..6cfb4e2 100644
--- a/src/overlay.js
+++ b/src/overlay.js
@@ -19,9 +19,22 @@ function forceOverlayOff(){
     periodOverlayField.style.display = 'none';
 }
 
+function forceOverlayOn(){
+    const overlaySetting = document.getElementById("period-overlay");
+    const periodOverlayField = document.getElementById("period-overlay-options");
+    const advancedOptionsField = document.getElementById("advanced-options");
+    overlaySetting.checked = true;
+    advancedOptionsField.style.display = 'flex';
+    periodOverlayField.style.display = 'flex';
+}
+
+function isOverlayAllowed(timeSelection) {
+    return !(timeSelection === "all")
+}
+
 function allowOverlay(){
     const periodOverlayField = document.getElementById("period-overlay-options");
     periodOverlayField.style.display = 'flex';
 }
 
-export {isOverlaySelected, getOverlayTime, setOverlayLabelTime, forceOverlayOff, allowOverlay};
\ No newline at end of file
+export {isOverlaySelected, getOverlayTime, setOverlayLabelTime, forceOverlayOff, forceOverlayOn, isOverlayAllowed, allowOverlay};
\ No newline at end of file