feat(amazonq): grouping options for code issues #6330

## Problem
Code issues are grouped by severity and while this is useful in some
cases, it can be hard to navigate.

## Solution
Let the user decide how to group the issues.
Grouping strategies to start off with:
- Severity (existing behavior)
- File Location (issues in the same file are grouped together)

Author: ctlai95

packages/amazonq/.changes/next-release/Feature-f0d4f2ca-72c5-4434-8cf3-fcd742bf33d7.json

@@ -0,0 +1,4 @@
+{
+	"type": "Feature",
+	"description": "/review: Code issues can be grouped by file location or severity"
+}

packages/amazonq/package.json

@@ -365,10 +365,15 @@
                     "when": "view == aws.AmazonQChatView || view == aws.amazonq.AmazonCommonAuth",
                     "group": "y_toolkitMeta@2"
                 },
+                {
+                    "command": "aws.amazonq.codescan.showGroupingStrategy",
+                    "when": "view == aws.amazonq.SecurityIssuesTree",
+                    "group": "navigation@1"
+                },
                 {
                     "command": "aws.amazonq.security.showFilters",
                     "when": "view == aws.amazonq.SecurityIssuesTree",
-                    "group": "navigation"
+                    "group": "navigation@2"
                 }
             ],
             "view/item/context": [
@@ -724,6 +729,12 @@
             {
                 "command": "aws.amazonq.security.showFilters",
                 "title": "%AWS.command.amazonq.filterIssues%",
+                "icon": "$(filter)",
+                "enablement": "view == aws.amazonq.SecurityIssuesTree"
+            },
+            {
+                "command": "aws.amazonq.codescan.showGroupingStrategy",
+                "title": "%AWS.command.amazonq.groupIssues%",
                 "icon": "$(list-filter)",
                 "enablement": "view == aws.amazonq.SecurityIssuesTree"
             },

packages/amazonq/test/unit/codewhisperer/models/model.test.ts

@@ -4,7 +4,12 @@
  */
 import assert from 'assert'
 import sinon from 'sinon'
-import { SecurityIssueFilters, SecurityTreeViewFilterState } from 'aws-core-vscode/codewhisperer'
+import {
+    CodeIssueGroupingStrategy,
+    CodeIssueGroupingStrategyState,
+    SecurityIssueFilters,
+    SecurityTreeViewFilterState,
+} from 'aws-core-vscode/codewhisperer'
 import { globals } from 'aws-core-vscode/shared'
 
 describe('model', function () {
@@ -70,4 +75,100 @@ describe('model', function () {
             assert.deepStrictEqual(hiddenSeverities, ['High', 'Low'])
         })
     })
+
+    describe('CodeIssueGroupingStrategyState', function () {
+        let sandbox: sinon.SinonSandbox
+        let state: CodeIssueGroupingStrategyState
+
+        beforeEach(function () {
+            sandbox = sinon.createSandbox()
+            state = CodeIssueGroupingStrategyState.instance
+        })
+
+        afterEach(function () {
+            sandbox.restore()
+        })
+
+        describe('instance', function () {
+            it('should return the same instance when called multiple times', function () {
+                const instance1 = CodeIssueGroupingStrategyState.instance
+                const instance2 = CodeIssueGroupingStrategyState.instance
+                assert.strictEqual(instance1, instance2)
+            })
+        })
+
+        describe('getState', function () {
+            it('should return fallback when no state is stored', function () {
+                const result = state.getState()
+
+                assert.equal(result, CodeIssueGroupingStrategy.Severity)
+            })
+
+            it('should return stored state when valid', async function () {
+                const validStrategy = CodeIssueGroupingStrategy.FileLocation
+                await state.setState(validStrategy)
+
+                const result = state.getState()
+
+                assert.equal(result, validStrategy)
+            })
+
+            it('should return fallback when stored state is invalid', async function () {
+                const invalidStrategy = 'invalid'
+                await state.setState(invalidStrategy)
+
+                const result = state.getState()
+
+                assert.equal(result, CodeIssueGroupingStrategy.Severity)
+            })
+        })
+
+        describe('setState', function () {
+            it('should update state and fire change event for valid strategy', async function () {
+                const validStrategy = CodeIssueGroupingStrategy.FileLocation
+
+                // Create a spy to watch for event emissions
+                const eventSpy = sandbox.spy()
+                state.onDidChangeState(eventSpy)
+
+                await state.setState(validStrategy)
+
+                sinon.assert.calledWith(eventSpy, validStrategy)
+            })
+
+            it('should use fallback and fire change event for invalid strategy', async function () {
+                const invalidStrategy = 'invalid'
+
+                // Create a spy to watch for event emissions
+                const eventSpy = sandbox.spy()
+                state.onDidChangeState(eventSpy)
+
+                await state.setState(invalidStrategy)
+
+                sinon.assert.calledWith(eventSpy, CodeIssueGroupingStrategy.Severity)
+            })
+        })
+
+        describe('reset', function () {
+            it('should set state to fallback value', async function () {
+                const setStateStub = sandbox.stub(state, 'setState').resolves()
+
+                await state.reset()
+
+                sinon.assert.calledWith(setStateStub, CodeIssueGroupingStrategy.Severity)
+            })
+        })
+
+        describe('onDidChangeState', function () {
+            it('should allow subscribing to state changes', async function () {
+                const listener = sandbox.spy()
+                const disposable = state.onDidChangeState(listener)
+
+                await state.setState(CodeIssueGroupingStrategy.Severity)
+
+                sinon.assert.calledWith(listener, CodeIssueGroupingStrategy.Severity)
+                disposable.dispose()
+            })
+        })
+    })
 })

packages/amazonq/test/unit/codewhisperer/service/securityIssueTreeViewProvider.test.ts

@@ -10,17 +10,24 @@ import {
     SecurityTreeViewFilterState,
     SecurityIssueProvider,
     SeverityItem,
+    CodeIssueGroupingStrategyState,
+    CodeIssueGroupingStrategy,
 } from 'aws-core-vscode/codewhisperer'
 import { createCodeScanIssue } from 'aws-core-vscode/test'
 import assert from 'assert'
 import sinon from 'sinon'
+import path from 'path'
 
 describe('SecurityIssueTreeViewProvider', function () {
-    let securityIssueProvider: SecurityIssueProvider
     let securityIssueTreeViewProvider: SecurityIssueTreeViewProvider
 
     beforeEach(function () {
-        securityIssueProvider = SecurityIssueProvider.instance
+        SecurityIssueProvider.instance.issues = [
+            { filePath: 'file/path/a', issues: [createCodeScanIssue(), createCodeScanIssue()] },
+            { filePath: 'file/path/b', issues: [createCodeScanIssue(), createCodeScanIssue()] },
+            { filePath: 'file/path/c', issues: [createCodeScanIssue(), createCodeScanIssue()] },
+            { filePath: 'file/path/d', issues: [createCodeScanIssue(), createCodeScanIssue()] },
+        ]
         securityIssueTreeViewProvider = new SecurityIssueTreeViewProvider()
     })
 
@@ -44,13 +51,6 @@ describe('SecurityIssueTreeViewProvider', function () {
 
     describe('getChildren', function () {
         it('should return sorted list of severities if element is undefined', function () {
-            securityIssueProvider.issues = [
-                { filePath: 'file/path/c', issues: [createCodeScanIssue(), createCodeScanIssue()] },
-                { filePath: 'file/path/d', issues: [createCodeScanIssue(), createCodeScanIssue()] },
-                { filePath: 'file/path/a', issues: [createCodeScanIssue(), createCodeScanIssue()] },
-                { filePath: 'file/path/b', issues: [createCodeScanIssue(), createCodeScanIssue()] },
-            ]
-
             const element = undefined
             const result = securityIssueTreeViewProvider.getChildren(element) as SeverityItem[]
             assert.strictEqual(result.length, 5)
@@ -102,5 +102,55 @@ describe('SecurityIssueTreeViewProvider', function () {
             const result = securityIssueTreeViewProvider.getChildren(element) as IssueItem[]
             assert.strictEqual(result.length, 0)
         })
+
+        it('should return severity-grouped items when grouping strategy is Severity', function () {
+            sinon.stub(CodeIssueGroupingStrategyState.instance, 'getState').returns(CodeIssueGroupingStrategy.Severity)
+
+            const severityItems = securityIssueTreeViewProvider.getChildren() as SeverityItem[]
+            for (const [index, [severity, expectedIssueCount]] of [
+                ['Critical', 0],
+                ['High', 8],
+                ['Medium', 0],
+                ['Low', 0],
+                ['Info', 0],
+            ].entries()) {
+                const currentSeverityItem = severityItems[index]
+                assert.strictEqual(currentSeverityItem.label, severity)
+                assert.strictEqual(currentSeverityItem.issues.length, expectedIssueCount)
+
+                const issueItems = securityIssueTreeViewProvider.getChildren(currentSeverityItem) as IssueItem[]
+                assert.ok(issueItems.every((item) => item.iconPath === undefined))
+                assert.ok(
+                    issueItems.every((item) => item.description?.toString().startsWith(path.basename(item.filePath)))
+                )
+            }
+        })
+
+        it('should return file-grouped items when grouping strategy is FileLocation', function () {
+            sinon
+                .stub(CodeIssueGroupingStrategyState.instance, 'getState')
+                .returns(CodeIssueGroupingStrategy.FileLocation)
+
+            const result = securityIssueTreeViewProvider.getChildren() as FileItem[]
+            for (const [index, [fileName, expectedIssueCount]] of [
+                ['a', 2],
+                ['b', 2],
+                ['c', 2],
+                ['d', 2],
+            ].entries()) {
+                const currentFileItem = result[index]
+                assert.strictEqual(currentFileItem.label, fileName)
+                assert.strictEqual(currentFileItem.issues.length, expectedIssueCount)
+                assert.strictEqual(currentFileItem.description, 'file/path')
+
+                const issueItems = securityIssueTreeViewProvider.getChildren(currentFileItem) as IssueItem[]
+                assert.ok(
+                    issueItems.every((item) =>
+                        item.iconPath?.toString().includes(`${item.issue.severity.toLowerCase()}.svg`)
+                    )
+                )
+                assert.ok(issueItems.every((item) => item.description?.toString().startsWith('[Ln ')))
+            }
+        })
     })
 })

packages/amazonq/test/unit/codewhisperer/ui/prompters.test.ts

@@ -0,0 +1,45 @@
+/*!
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+import { createQuickPickPrompterTester, QuickPickPrompterTester } from 'aws-core-vscode/test'
+import {
+    CodeIssueGroupingStrategy,
+    CodeIssueGroupingStrategyState,
+    createCodeIssueGroupingStrategyPrompter,
+} from 'aws-core-vscode/codewhisperer'
+import sinon from 'sinon'
+import assert from 'assert'
+import vscode from 'vscode'
+
+const severity = { data: CodeIssueGroupingStrategy.Severity, label: 'Severity' }
+const fileLocation = { data: CodeIssueGroupingStrategy.FileLocation, label: 'File Location' }
+
+describe('createCodeIssueGroupingStrategyPrompter', function () {
+    let tester: QuickPickPrompterTester<CodeIssueGroupingStrategy>
+
+    beforeEach(function () {
+        tester = createQuickPickPrompterTester(createCodeIssueGroupingStrategyPrompter())
+    })
+
+    afterEach(function () {
+        sinon.restore()
+    })
+
+    it('should list grouping strategies', async function () {
+        tester.assertItems([severity, fileLocation])
+        tester.hide()
+        await tester.result()
+    })
+
+    it('should update state on selection', async function () {
+        const originalState = CodeIssueGroupingStrategyState.instance.getState()
+        assert.equal(originalState, CodeIssueGroupingStrategy.Severity)
+
+        tester.selectItems(fileLocation)
+        tester.addCallback(() => vscode.commands.executeCommand('workbench.action.acceptSelectedQuickOpenItem'))
+
+        await tester.result()
+        assert.equal(CodeIssueGroupingStrategyState.instance.getState(), fileLocation.data)
+    })
+})

packages/core/package.nls.json

@@ -133,6 +133,7 @@
     "AWS.command.amazonq.acceptFix": "Accept Fix",
     "AWS.command.amazonq.regenerateFix": "Regenerate Fix",
     "AWS.command.amazonq.filterIssues": "Filter Issues",
+    "AWS.command.amazonq.groupIssues": "Group Issues",
     "AWS.command.deploySamApplication": "Deploy SAM Application",
     "AWS.command.aboutToolkit": "About",
     "AWS.command.downloadLambda": "Download...",
@@ -309,6 +310,10 @@
     "AWS.amazonq.scans.projectScanInProgress": "Workspace review is in progress...",
     "AWS.amazonq.scans.fileScanInProgress": "File review is in progress...",
     "AWS.amazonq.scans.noGitRepo": "Your workspace is not in a git repository. I'll review your project files for security issues, and your in-flight changes for code quality issues.",
+    "AWS.amazonq.scans.severity": "Severity",
+    "AWS.amazonq.scans.fileLocation": "File Location",
+    "AWS.amazonq.scans.groupIssues": "Group Issues",
+    "AWS.amazonq.scans.groupIssues.placeholder": "Select how to group code issues",
     "AWS.amazonq.featureDev.error.conversationIdNotFoundError": "Conversation id must exist before starting code generation",
     "AWS.amazonq.featureDev.error.contentLengthError": "The folder you selected is too large for me to use as context. Please choose a smaller folder to work on. For more information on quotas, see the <a href=\"https://docs.aws.amazon.com/amazonq/latest/qdeveloper-ug/software-dev.html#quotas\" target=\"_blank\">Amazon Q Developer documentation.</a>",
     "AWS.amazonq.featureDev.error.illegalStateTransition": "Illegal transition between states, restart the conversation",

packages/core/src/codewhisperer/activation.ts

@@ -18,6 +18,7 @@ import {
     SecurityTreeViewFilterState,
     AggregatedCodeScanIssue,
     CodeScanIssue,
+    CodeIssueGroupingStrategyState,
 } from './models/model'
 import { invokeRecommendation } from './commands/invokeRecommendation'
 import { acceptSuggestion } from './commands/onInlineAcceptance'
@@ -60,6 +61,7 @@ import {
     ignoreAllIssues,
     focusIssue,
     showExploreAgentsView,
+    showCodeIssueGroupingQuickPick,
 } from './commands/basicCommands'
 import { sleep } from '../shared/utilities/timeoutUtils'
 import { ReferenceLogViewProvider } from './service/referenceLogViewProvider'
@@ -289,6 +291,8 @@ export async function activate(context: ExtContext): Promise<void> {
         listCodeWhispererCommands.register(),
         // quick pick with security issues tree filters
         showSecurityIssueFilters.register(),
+        // quick pick code issue grouping strategy
+        showCodeIssueGroupingQuickPick.register(),
         // reset security issue filters
         clearFilters.register(),
         // handle security issues tree item clicked
@@ -297,6 +301,10 @@ export async function activate(context: ExtContext): Promise<void> {
         SecurityTreeViewFilterState.instance.onDidChangeState((e) => {
             SecurityIssueTreeViewProvider.instance.refresh()
         }),
+        // refresh treeview when grouping strategy changes
+        CodeIssueGroupingStrategyState.instance.onDidChangeState((e) => {
+            SecurityIssueTreeViewProvider.instance.refresh()
+        }),
         // show a no match state
         SecurityIssueTreeViewProvider.instance.onDidChangeTreeData((e) => {
             const noMatches =

packages/core/src/codewhisperer/client/codewhisperer.ts

@@ -31,8 +31,8 @@ export interface CodeWhispererConfig {
 }
 
 export const defaultServiceConfig: CodeWhispererConfig = {
-    region: 'us-east-1',
-    endpoint: 'https://codewhisperer.us-east-1.amazonaws.com/',
+    region: 'us-west-2',
+    endpoint: 'https://rts.alpha-us-west-2.codewhisperer.ai.aws.dev/',
 }
 
 export function getCodewhispererConfig(): CodeWhispererConfig {

packages/core/src/codewhisperer/commands/basicCommands.ts

@@ -68,6 +68,7 @@ import { DefaultAmazonQAppInitContext } from '../../amazonq/apps/initContext'
 import path from 'path'
 import { UserWrittenCodeTracker } from '../tracker/userWrittenCodeTracker'
 import { parsePatch } from 'diff'
+import { createCodeIssueGroupingStrategyPrompter } from '../ui/prompters'
 
 const MessageTimeOut = 5_000
 
@@ -887,6 +888,14 @@ export const showSecurityIssueFilters = Commands.declare({ id: 'aws.amazonq.secu
     }
 })
 
+export const showCodeIssueGroupingQuickPick = Commands.declare(
+    { id: 'aws.amazonq.codescan.showGroupingStrategy' },
+    () => async () => {
+        const prompter = createCodeIssueGroupingStrategyPrompter()
+        await prompter.prompt()
+    }
+)
+
 export const focusIssue = Commands.declare(
     { id: 'aws.amazonq.security.focusIssue' },
     () => async (issue: CodeScanIssue, filePath: string) => {

packages/core/src/codewhisperer/index.ts

@@ -102,4 +102,5 @@ export * as CodeWhispererConstants from '../codewhisperer/models/constants'
 export { getSelectedCustomization, setSelectedCustomization, baseCustomization } from './util/customizationUtil'
 export { Container } from './service/serviceContainer'
 export * from './util/gitUtil'
+export * from './ui/prompters'
 export { UserWrittenCodeTracker } from './tracker/userWrittenCodeTracker'