From ee6caee9b0c7377b967785bcb8bed2d18eb9a14c Mon Sep 17 00:00:00 2001
From: Jackson Goode <jacksongoode@proton.me>
Date: Thu, 16 Nov 2023 15:09:07 -0800
Subject: [PATCH] Fix for timezone matcher - 1.6.4

---
 .config/.cprc.json    |  3 +++
 .config/jest-setup.js |  2 +-
 .gitignore            |  1 +
 package.json          |  2 +-
 src/SimplePanel.tsx   | 11 +++++++----
 yarn.lock             |  6 +++---
 6 files changed, 16 insertions(+), 9 deletions(-)
 create mode 100644 .config/.cprc.json

diff --git a/.config/.cprc.json b/.config/.cprc.json
new file mode 100644
index 0000000..93cec15
--- /dev/null
+++ b/.config/.cprc.json
@@ -0,0 +1,3 @@
+{
+  "version": "2.6.0"
+}
diff --git a/.config/jest-setup.js b/.config/jest-setup.js
index d045711..1b9fc2f 100644
--- a/.config/jest-setup.js
+++ b/.config/jest-setup.js
@@ -22,4 +22,4 @@ Object.defineProperty(global, 'matchMedia', {
   })),
 });
 
-HTMLCanvasElement.prototype.getContext = () => { };
+HTMLCanvasElement.prototype.getContext = () => {};
diff --git a/.gitignore b/.gitignore
index 88d2022..a082e5f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -34,3 +34,4 @@ nline-plotlyjs-panel-*.zip.md5
 dist/
 .trunk/
 keys.env
+.eslintcache
diff --git a/package.json b/package.json
index 9cfb980..4af3994 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "nline-plotlyjs-panel",
-  "version": "1.6.3",
+  "version": "1.6.4",
   "description": "Grafana Plotly Plugin",
   "scripts": {
     "build": "webpack -c ./.config/webpack/webpack.config.ts --env production",
diff --git a/src/SimplePanel.tsx b/src/SimplePanel.tsx
index 450dc8f..e71bff6 100644
--- a/src/SimplePanel.tsx
+++ b/src/SimplePanel.tsx
@@ -64,11 +64,14 @@ export const SimplePanel = React.memo(
 
     // Add convenience function for matching UTC data to timezone
     const local = dayjs.tz.guess();
-    const matchTimezone = (timeStamps: Int32Array, correct = true) => {
+    const matchTimezone = (timeStamps: Int32Array) => {
       const tz = timeZone === 'browser' ? local : timeZone;
-      const baseOffset = correct ? 0 : dayjs().tz(local).utcOffset();
-      const offset = (dayjs().tz(tz).utcOffset() - baseOffset) * 60 * 1000;
+      const localOffset = dayjs().tz(local).utcOffset();
+      const dashOffset = dayjs().tz(tz).utcOffset();
 
+      // We need to reverse the offset that Plotly assigns
+      // And then consider the dashboard timezone offset
+      const offset = (localOffset - dashOffset) * 60 * 1000;
       return timeStamps.map((ts) => ts - offset);
     };
 
@@ -86,7 +89,7 @@ export const SimplePanel = React.memo(
 
     // Convert time column if selected
     let prcData = props.data;
-    const timeColExists = prcData.series[0].fields.some((f) => f.name === options.timeCol);
+    const timeColExists = prcData.series?.[0]?.fields?.some((f) => f.name === options.timeCol) || false;
     if (timeColExists) {
       prcData = correctTimeCol(props.data);
     }
diff --git a/yarn.lock b/yarn.lock
index b8de187..cfac7a4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2667,9 +2667,9 @@
   integrity sha512-K0VQKziLUWkVKiRVrx4a40iPaxTUefQmjtkQofBkYRcoaaL/8rhwDWww9qWbrgicNOgnpIsMxyNIUM4+n6dUIA==
 
 "@types/node@*", "@types/node@^20.8.7":
-  version "20.9.0"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-20.9.0.tgz#bfcdc230583aeb891cf51e73cfdaacdd8deae298"
-  integrity sha512-nekiGu2NDb1BcVofVcEKMIwzlx4NjHlcjhoxxKBNLtz15Y1z7MYf549DFvkHSId02Ax6kGwWntIBPC3l/JZcmw==
+  version "20.9.1"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-20.9.1.tgz#9d578c610ce1e984adda087f685ace940954fe19"
+  integrity sha512-HhmzZh5LSJNS5O8jQKpJ/3ZcrrlG6L70hpGqMIAoM9YVD0YBRNWYsfwcXq8VnSjlNpCpgLzMXdiPo+dxcvSmiA==
   dependencies:
     undici-types "~5.26.4"