From 3f5d08dad8fa361142e2e6bd931482b083cfd1c8 Mon Sep 17 00:00:00 2001
From: Jim O'Donnell <jim@zooniverse.org>
Date: Tue, 29 Mar 2022 16:47:36 +0100
Subject: [PATCH] Dev classifier workflow routing Add some simple workflow
 routing to the dev classifier, so that the location bar updates when the
 selected workflow changes.

---
 .../lib-classifier/dev/components/App/App.js     | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/packages/lib-classifier/dev/components/App/App.js b/packages/lib-classifier/dev/components/App/App.js
index 2b92b58c4a..01598f96a4 100644
--- a/packages/lib-classifier/dev/components/App/App.js
+++ b/packages/lib-classifier/dev/components/App/App.js
@@ -112,8 +112,20 @@ class App extends React.Component {
   }
 
   selectWorkflow(event) {
-    const { value } = event.target
-    this.setState({ workflowID: value })
+    const { value: workflowID } = event.target
+    this.setState({ workflowID })
+    const url = new URL(window.location)
+    const { searchParams } = url
+    const newParams = new URLSearchParams()
+    for (const [key, value] of searchParams.entries()) {
+      newParams.set(key, value)
+    }
+    if (!workflowID) {
+      newParams.delete('workflow')
+    } else {
+      newParams.set('workflow', workflowID)
+    }
+    history.pushState(null, '', `/?${newParams.toString()}`)
   }
 
   toggleTheme () {