From b38a97adf329c78b4a99ff564c4d4c0ab86bc7ef Mon Sep 17 00:00:00 2001
From: Paul Kaplan <pkaplan@media.mit.edu>
Date: Mon, 17 May 2021 09:05:02 -0400
Subject: [PATCH] Studio admin panel

---
 src/views/studio/studio-admin-panel.jsx       | 96 +++++++++++++++++++
 src/views/studio/studio.jsx                   |  2 +
 src/views/studio/studio.scss                  | 29 ++++++
 .../components/studio-admin-panel.test.jsx    | 72 ++++++++++++++
 4 files changed, 199 insertions(+)
 create mode 100644 src/views/studio/studio-admin-panel.jsx
 create mode 100644 test/unit/components/studio-admin-panel.test.jsx

diff --git a/src/views/studio/studio-admin-panel.jsx b/src/views/studio/studio-admin-panel.jsx
new file mode 100644
index 000000000..b2358bd2d
--- /dev/null
+++ b/src/views/studio/studio-admin-panel.jsx
@@ -0,0 +1,96 @@
+/* eslint-disable react/jsx-no-bind */
+import React, {useState, useEffect} from 'react';
+import {connect} from 'react-redux';
+import classNames from 'classnames';
+
+
+import {selectIsAdmin} from '../../redux/session.js';
+import {selectStudioId} from '../../redux/studio.js';
+
+import AdminPanel from '../../components/adminpanel/adminpanel.jsx';
+
+const adminPanelOpenKey = 'adminPanelToggled_studios';
+const adminPanelOpenClass = 'mod-view-admin-panel-open';
+
+/**
+ * Propagate the admin panel openness to localStorage and set a class name
+ * on the #view element.
+ * @param {boolean} value - whether the admin panel is now open.
+ */
+const storeAdminPanelOpen = value => {
+    try {
+        localStorage.setItem(adminPanelOpenKey, value ? 'open' : 'closed');
+    } catch (e) {
+        // eslint-disable-next-line no-console
+        console.error('Could not set adminPanelToggled_studios in local storage', e);
+    }
+    try {
+        document.querySelector('#view').classList
+            .toggle(adminPanelOpenClass, value);
+    } catch (e) {
+        // eslint-disable-next-line no-console
+        console.error('Could not set admin-panel-open class on #view');
+    }
+};
+
+/**
+ * Get the previous stored value of admin panel openness from localStorage.
+ * @returns {boolean} - whether the admin panel should be open.
+ */
+const getAdminPanelOpen = () => {
+    try {
+        return localStorage.getItem(adminPanelOpenKey) === 'open';
+    } catch (_) {
+        return false;
+    }
+};
+
+const StudioAdminPanel = ({studioId, showAdminPanel}) => {
+    const [adminPanelOpen, setAdminPanelOpen] = useState(getAdminPanelOpen());
+
+    useEffect(() => {
+        storeAdminPanelOpen(adminPanelOpen);
+    }, [adminPanelOpen]);
+
+    useEffect(() => {
+        if (!showAdminPanel) return;
+        const handleMessage = e => {
+            if (e.data === 'closePanel') setAdminPanelOpen(false);
+        };
+        window.addEventListener('message', handleMessage);
+        return () => {
+            window.removeEventListener('message', handleMessage);
+        };
+    }, [showAdminPanel]);
+
+    return showAdminPanel && (
+        <AdminPanel
+            className={classNames('studio-admin-panel', {
+                'admin-panel-open': adminPanelOpen
+            })}
+            isOpen={adminPanelOpen}
+            onOpen={() => setAdminPanelOpen(true)}
+        >
+            <iframe
+                className="admin-iframe"
+                src={`/scratch2-studios/${studioId}/adminpanel/`}
+            />
+        </AdminPanel>
+    );
+};
+
+const ConnnectedStudioAdminPanel = connect(
+    state => ({
+        studioId: selectStudioId(state),
+        showAdminPanel: selectIsAdmin(state)
+    })
+)(StudioAdminPanel);
+
+export {
+    ConnnectedStudioAdminPanel as default,
+    // Export the unconnected component by name for testing
+    StudioAdminPanel,
+    // Export some constants for easy testing as well
+    adminPanelOpenClass,
+    adminPanelOpenKey
+};
diff --git a/src/views/studio/studio.jsx b/src/views/studio/studio.jsx
index 2d4bd65c4..aa945457e 100644
--- a/src/views/studio/studio.jsx
+++ b/src/views/studio/studio.jsx
@@ -22,6 +22,7 @@ import StudioManagers from './studio-managers.jsx';
 import StudioCurators from './studio-curators.jsx';
 import StudioComments from './studio-comments.jsx';
 import StudioActivity from './studio-activity.jsx';
+import StudioAdminPanel from './studio-admin-panel.jsx';
 
 import {
     projects,
@@ -88,6 +89,7 @@ const ConnectedStudioShell = connect(
 
 render(
     <Page className="studio-page">
+        <StudioAdminPanel />
         <Router>
             <Switch>
                 {/* Use variable studioPath to support /studio-playground/ or future route */}
diff --git a/src/views/studio/studio.scss b/src/views/studio/studio.scss
index d48a2bfbb..9a4313695 100644
--- a/src/views/studio/studio.scss
+++ b/src/views/studio/studio.scss
@@ -15,6 +15,12 @@ $radius: 8px;
         display: block;
         padding-top: 40px;
 
+        &.mod-view-admin-panel-open {
+            min-width: unset;
+            width: calc(100% - 250px);
+            margin: 50px 0px 50px 250px;
+        }
+
         /* WAT Why does everything center at smaller widths??!! */
         @media #{$intermediate-and-smaller} {
             & {
@@ -349,6 +355,29 @@ $radius: 8px;
     }
 }
 
+.studio-admin-panel {
+    margin-top: 51px;
+    border: 0;
+    padding: .5rem;
+    overflow: hidden;
+}
+
+.studio-admin-panel.admin-panel-open {
+    padding: 0;
+    width: 250px;
+}
+
+.admin-iframe {
+    position: absolute;
+    top: 0;
+    left: 0;
+    z-index: 100;
+    margin: 0;
+    border: 0;
+    width: 250px;
+    height: 100%;
+}
+
 /* Modification classes for different interaction states */
 .mod-fetching { /* When a field has no content to display yet */
     position: relative;
diff --git a/test/unit/components/studio-admin-panel.test.jsx b/test/unit/components/studio-admin-panel.test.jsx
new file mode 100644
index 000000000..0825ca34a
--- /dev/null
+++ b/test/unit/components/studio-admin-panel.test.jsx
@@ -0,0 +1,72 @@
+import React from 'react';
+import {act} from 'react-dom/test-utils';
+
+import {mountWithIntl} from '../../helpers/intl-helpers.jsx';
+import AdminPanel from '../../../src/components/adminpanel/adminpanel.jsx';
+import {
+    StudioAdminPanel, adminPanelOpenClass, adminPanelOpenKey
+} from '../../../src/views/studio/studio-admin-panel.jsx';
+
+let viewEl;
+describe('Studio comments', () => {
+    beforeAll(() => {
+        viewEl = global.document.createElement('div');
+        viewEl.id = 'view';
+        global.document.body.appendChild(viewEl);
+    });
+    beforeEach(() => {
+        global.localStorage.clear();
+        viewEl.classList.remove(adminPanelOpenClass);
+    });
+    describe('gets stored state from local storage if available', () => {
+        test('stored as open', () => {
+            global.localStorage.setItem(adminPanelOpenKey, 'open');
+            const component = mountWithIntl(<StudioAdminPanel showAdminPanel />);
+            const child = component.find(AdminPanel);
+            expect(child.prop('isOpen')).toBe(true);
+        });
+        test('stored as closed', () => {
+            global.localStorage.setItem(adminPanelOpenKey, 'closed');
+            const component = mountWithIntl(<StudioAdminPanel showAdminPanel />);
+            const child = component.find(AdminPanel);
+            expect(child.prop('isOpen')).toBe(false);
+        });
+        test('not stored', () => {
+            const component = mountWithIntl(
+                <StudioAdminPanel showAdminPanel />
+            );
+            const child = component.find(AdminPanel);
+            expect(child.prop('isOpen')).toBe(false);
+        });
+    });
+    test('calling onOpen sets a class on the #viewEl and records in local storage', () => {
+        const component = mountWithIntl(<StudioAdminPanel showAdminPanel />);
+        let child = component.find(AdminPanel);
+        expect(viewEl.classList.contains(adminPanelOpenClass)).toBe(false);
+        // `act` is a test-util function for making react state updates sync
+        act(child.prop('onOpen'));
+        expect(viewEl.classList.contains(adminPanelOpenClass)).toBe(true);
+        expect(global.localStorage.getItem(adminPanelOpenKey)).toBe('open');
+    });
+    test('renders the correct iframe when open', () => {
+        global.localStorage.setItem(adminPanelOpenKey, 'open');
+        const component = mountWithIntl(
+            <StudioAdminPanel
+                studioId={123}
+                showAdminPanel
+            />
+        );
+        let child = component.find('iframe');
+        expect(child.getDOMNode().src).toMatch('/scratch2-studios/123/adminpanel');
+    });
+    test('responds to closePanel MessageEvent from the iframe', () => {
+        global.localStorage.setItem(adminPanelOpenKey, 'open');
+        mountWithIntl(<StudioAdminPanel showAdminPanel />);
+        expect(viewEl.classList.contains(adminPanelOpenClass)).toBe(true);
+        act(() => {
+            global.window.dispatchEvent(new global.MessageEvent('message', {data: 'closePanel'}));
+        });
+        expect(viewEl.classList.contains(adminPanelOpenClass)).toBe(false);
+        expect(global.localStorage.getItem(adminPanelOpenKey)).toBe('closed');
+    });
+});