[MM-63534] Show errors from Support Packet generation in System Console (#30535)

webapp/channels/src/components/commercial_support_modal/__snapshots__/commercial_support_modal.test.tsx.snap

@@ -60,22 +60,6 @@ exports[`components/CommercialSupportModal should match snapshot 1`] = `
           }
         }
       />
-      <AlertBanner
-        message={
-          <Memo(MemoizedFormattedMessage)
-            defaultMessage="Before downloading the Support Packet, set <strong>Output Logs to File</strong> to <strong>true</strong> and set <strong>File Log Level</strong> to <strong>DEBUG</strong> <debugLink>here</debugLink>."
-            id="commercial_support_modal.warning.banner"
-            values={
-              Object {
-                "debugLink": [Function],
-                "strong": [Function],
-              }
-            }
-          />
-        }
-        mode="info"
-        onDismiss={[Function]}
-      />
       <div
         className="CommercialSupportModal__packet_contents_download"
       >
@@ -86,6 +70,26 @@ exports[`components/CommercialSupportModal should match snapshot 1`] = `
           />
         </strong>
       </div>
+      <div
+        className="CommercialSupportModal__option"
+        key="basic.server.logs"
+      >
+        <input
+          checked={true}
+          className="CommercialSupportModal__options__checkbox"
+          disabled={true}
+          id="basic.server.logs"
+          name="basic.server.logs"
+          onChange={[Function]}
+          type="checkbox"
+        />
+        <MemoizedFormattedMessage
+          defaultMessage="Server Logs"
+          id="mettormost.plugin.metrics.support.packet"
+        >
+          <Component />
+        </MemoizedFormattedMessage>
+      </div>
       <div
         className="CommercialSupportModal__download"
       >

webapp/channels/src/components/commercial_support_modal/commercial_support_modal.scss

@@ -24,3 +24,13 @@
     font-family: Metropolis, sans-serif;
     font-weight: 600 !important;
 }
+
+.CommercialSupportModal__error {
+    margin-top: 12px;
+    
+    .error-text {
+        display: inline-block;
+        color: var(--error-text);
+        word-break: break-word;
+    }
+}

webapp/channels/src/components/commercial_support_modal/commercial_support_modal.test.tsx

@@ -4,22 +4,94 @@
 import {shallow} from 'enzyme';
 import React from 'react';
 
+import {Client4} from 'mattermost-redux/client';
+
 import CommercialSupportModal from 'components/commercial_support_modal/commercial_support_modal';
 
 import {TestHelper} from 'utils/test_helper';
 
 describe('components/CommercialSupportModal', () => {
+    beforeAll(() => {
+        // Mock getSystemRoute to return a valid URL
+        jest.spyOn(Client4, 'getSystemRoute').mockImplementation(() => 'http://localhost:8065/api/v4/system');
+
+        // Mock createObjectURL
+        window.URL.createObjectURL = jest.fn().mockReturnValue('mock-url');
+    });
+
+    afterAll(() => {
+        jest.restoreAllMocks();
+
+        // @ts-expect-error - TS doesn't like deleting built-in methods
+        delete window.URL.createObjectURL;
+    });
+
+    const baseProps = {
+        onExited: jest.fn(),
+        showBannerWarning: false,
+        isCloud: false,
+        currentUser: TestHelper.getUserMock(),
+        packetContents: [
+            {id: 'basic.server.logs', label: 'Server Logs', selected: true, mandatory: true},
+        ],
+    };
+
     test('should match snapshot', () => {
-        const mockUser = TestHelper.getUserMock();
+        const wrapper = shallow(<CommercialSupportModal {...baseProps}/>);
-        const wrapper = shallow(
-            <CommercialSupportModal
-                onExited={jest.fn()}
-                showBannerWarning={true}
-                isCloud={false}
-                currentUser={mockUser}
-                packetContents={[]}
-            />,
-        );
         expect(wrapper).toMatchSnapshot();
     });
+
+    test('should show error message when download fails', async () => {
+        const errorMessage = 'Failed to download';
+        const detailedError = 'Permission denied';
+
+        // Mock the fetch call to return an error
+        global.fetch = jest.fn().mockImplementation(() =>
+            Promise.resolve({
+                ok: false,
+                json: () => Promise.resolve({
+                    message: errorMessage,
+                    detailed_error: detailedError,
+                }),
+            }),
+        );
+
+        const wrapper = shallow<CommercialSupportModal>(<CommercialSupportModal {...baseProps}/>);
+
+        // Trigger download
+        const instance = wrapper.instance();
+        await instance.downloadSupportPacket();
+        wrapper.update();
+
+        // Verify error message is shown
+        const errorDiv = wrapper.find('.CommercialSupportModal__error');
+        expect(errorDiv.exists()).toBe(true);
+        expect(errorDiv.find('.error-text').text()).toBe(`${errorMessage}: ${detailedError}`);
+
+        // Verify loading state is reset
+        expect(wrapper.state('loading')).toBe(false);
+    });
+
+    test('should clear error when starting new download', async () => {
+        // Mock the fetch call to succeed
+        global.fetch = jest.fn().mockImplementation(() =>
+            Promise.resolve({
+                ok: true,
+                blob: () => Promise.resolve(new Blob()),
+                headers: {get: () => null},
+            }),
+        );
+
+        const wrapper = shallow<CommercialSupportModal>(<CommercialSupportModal {...baseProps}/>);
+
+        // Set initial error state
+        wrapper.setState({error: 'Previous error'});
+
+        // Start download
+        const instance = wrapper.instance();
+        await instance.downloadSupportPacket();
+
+        // Verify error is cleared
+        expect(wrapper.state('error')).toBeUndefined();
+    });
 });

webapp/channels/src/components/commercial_support_modal/commercial_support_modal.tsx

@@ -39,6 +39,7 @@ type State = {
     showBannerWarning: boolean;
     packetContents: SupportPacketContent[];
     loading: boolean;
+    error?: string;
 };
 
 export default class CommercialSupportModal extends React.PureComponent<Props, State> {
@@ -106,11 +107,18 @@ export default class CommercialSupportModal extends React.PureComponent<Props, S
     };
 
     downloadSupportPacket = async () => {
-        this.setState({loading: true});
+        this.setState({loading: true, error: undefined});
         const res = await fetch(this.genereateDownloadURLWithParams(), {
             method: 'GET',
             headers: {'Content-Type': 'application/zip'},
         });
+        if (!res.ok) {
+            const data = await res.json();
+            const error = data.message + ': ' + data.detailed_error;
+            this.setState({loading: false, error});
+            return;
+        }
+
         const blob = await res.blob();
         this.setState({loading: false});
 
@@ -214,6 +222,11 @@ export default class CommercialSupportModal extends React.PureComponent<Props, S
                             </div>
                         ))}
                         <div className='CommercialSupportModal__download'>
+                            {this.state.error && (
+                                <div className='CommercialSupportModal__error'>
+                                    <span className='error-text'>{this.state.error}</span>
+                                </div>
+                            )}
                             <a
                                 className='btn btn-primary DownloadSupportPacket'
                                 onClick={this.downloadSupportPacket}