1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485/**
* Component Analyzer - Shared module for analyzing React component complexity
*
* This module is used by:
* - analyze-component.js (for test generation)
* - refactor-component.js (for refactoring suggestions)
*/
import fs from 'node:fs'
import path from 'node:path'
import tsParser from '@typescript-eslint/parser'
import { Linter } from 'eslint'
import sonarPlugin from 'eslint-plugin-sonarjs'
// ============================================================================
// Component Analyzer
// ============================================================================
export class ComponentAnalyzer {
analyze(code, filePath, absolutePath) {
const resolvedPath = absolutePath ?? path.resolve(process.cwd(), filePath)
const fileName = path.basename(filePath, path.extname(filePath))
const lineCount = code.split('\n').length
const hasReactQuery = /\buse(?:Query|Queries|InfiniteQuery|SuspenseQuery|SuspenseInfiniteQuery|Mutation)\b/.test(code)
// Calculate complexity metrics
const { total: rawComplexity, max: rawMaxComplexity } = this.calculateCognitiveComplexity(code)
const complexity = this.normalizeComplexity(rawComplexity)
const maxComplexity = this.normalizeComplexity(rawMaxComplexity)
// Count usage references (may take a few seconds)
const usageCount = this.countUsageReferences(filePath, resolvedPath)
// Calculate test priority
const priority = this.calculateTestPriority(complexity, usageCount)
return {
name: fileName.charAt(0).toUpperCase() + fileName.slice(1),
path: filePath,
type: this.detectType(filePath, code),
hasProps: code.includes('Props') || code.includes('interface'),
hasState: code.includes('useState') || code.includes('useReducer'),
hasEffects: code.includes('useEffect'),
hasCallbacks: code.includes('useCallback'),
hasMemo: code.includes('useMemo'),
hasEvents: /on[A-Z]\w+/.test(code),
hasRouter: code.includes('useRouter') || code.includes('usePathname'),
hasAPI: code.includes('service/') || code.includes('fetch(') || hasReactQuery,
hasForwardRef: code.includes('forwardRef'),
hasComponentMemo: /React\.memo|memo\(/.test(code),
hasSuspense: code.includes('Suspense') || /\blazy\(/.test(code),
hasPortal: code.includes('createPortal'),
hasImperativeHandle: code.includes('useImperativeHandle'),
hasReactQuery,
hasAhooks: code.includes('from \'ahooks\''),
complexity,
maxComplexity,
rawComplexity,
rawMaxComplexity,
lineCount,
usageCount,
priority,
}
}
detectType(filePath, code) {
const normalizedPath = filePath.replace(/\\/g, '/')
if (normalizedPath.includes('/hooks/'))
return 'hook'
if (normalizedPath.includes('/utils/'))
return 'util'
if (/\/page\.(t|j)sx?$/.test(normalizedPath))
return 'page'
if (/\/layout\.(t|j)sx?$/.test(normalizedPath))
return 'layout'
if (/\/providers?\//.test(normalizedPath))
return 'provider'
// Dify-specific types
if (normalizedPath.includes('/components/base/'))
return 'base-component'
if (normalizedPath.includes('/context/'))
return 'context'
if (normalizedPath.includes('/store/'))
return 'store'
if (normalizedPath.includes('/service/'))
return 'service'
if (/use[A-Z]\w+/.test(code))
return 'component'
return 'component'
}
/**
* Calculate Cognitive Complexity using SonarJS ESLint plugin
* Reference: https://www.sonarsource.com/blog/5-clean-code-tips-for-reducing-cognitive-complexity/
*
* Returns raw (unnormalized) complexity values:
* - total: sum of all functions' complexity in the file
* - max: highest single function complexity in the file
*
* Raw Score Thresholds (per function):
* 0-15: Simple | 16-30: Medium | 31-50: Complex | 51+: Very Complex
*
* @returns {{ total: number, max: number }} raw total and max complexity
*/
calculateCognitiveComplexity(code) {
const linter = new Linter()
const baseConfig = {
languageOptions: {
parser: tsParser,
parserOptions: {
ecmaVersion: 'latest',
sourceType: 'module',
ecmaFeatures: { jsx: true },
},
},
plugins: { sonarjs: sonarPlugin },
}
try {
// Get total complexity using 'metric' option (more stable)
const totalConfig = {
...baseConfig,
rules: { 'sonarjs/cognitive-complexity': ['error', 0, 'metric'] },
}
const totalMessages = linter.verify(code, totalConfig)
const totalMsg = totalMessages.find(
msg => msg.ruleId === 'sonarjs/cognitive-complexity'
&& msg.messageId === 'fileComplexity',
)
const total = totalMsg ? Number.parseInt(totalMsg.message, 10) : 0
// Get max function complexity by analyzing each function
const maxConfig = {
...baseConfig,
rules: { 'sonarjs/cognitive-complexity': ['error', 0] },
}
const maxMessages = linter.verify(code, maxConfig)
let max = 0
const complexityPattern = /reduce its Cognitive Complexity from (\d+)/
maxMessages.forEach((msg) => {
if (msg.ruleId === 'sonarjs/cognitive-complexity') {
const match = msg.message.match(complexityPattern)
if (match && match[1])
max = Math.max(max, Number.parseInt(match[1], 10))
}
})
return { total, max }
}
catch {
return { total: 0, max: 0 }
}
}
/**
* Normalize cognitive complexity to 0-100 scale
*
* Mapping (aligned with SonarJS thresholds):
* Raw 0-15 (Simple) -> Normalized 0-25
* Raw 16-30 (Medium) -> Normalized 25-50
* Raw 31-50 (Complex) -> Normalized 50-75
* Raw 51+ (Very Complex) -> Normalized 75-100 (asymptotic)
*/
normalizeComplexity(rawComplexity) {
if (rawComplexity <= 15) {
// Linear: 0-15 -> 0-25
return Math.round((rawComplexity / 15) * 25)
}
else if (rawComplexity <= 30) {
// Linear: 16-30 -> 25-50
return Math.round(25 + ((rawComplexity - 15) / 15) * 25)
}
else if (rawComplexity <= 50) {
// Linear: 31-50 -> 50-75
return Math.round(50 + ((rawComplexity - 30) / 20) * 25)
}
else {
// Asymptotic: 51+ -> 75-100
// Formula ensures score approaches but never exceeds 100
return Math.round(75 + 25 * (1 - 1 / (1 + (rawComplexity - 50) / 100)))
}
}
/**
* Count how many times a component is referenced in the codebase
* Scans TypeScript sources for import statements referencing the component
*/
countUsageReferences(filePath, absolutePath) {
try {
const resolvedComponentPath = absolutePath ?? path.resolve(process.cwd(), filePath)
const fileName = path.basename(resolvedComponentPath, path.extname(resolvedComponentPath))
let searchName = fileName
if (fileName === 'index') {
const parentDir = path.dirname(resolvedComponentPath)
searchName = path.basename(parentDir)
}
if (!searchName)
return 0
const searchRoots = this.collectSearchRoots(resolvedComponentPath)
if (searchRoots.length === 0)
return 0
const escapedName = ComponentAnalyzer.escapeRegExp(searchName)
const patterns = [
new RegExp(`from\\s+['\"][^'\"]*(?:/|^)${escapedName}(?:['\"/]|$)`),
new RegExp(`import\\s*\\(\\s*['\"][^'\"]*(?:/|^)${escapedName}(?:['\"/]|$)`),
new RegExp(`export\\s+(?:\\*|{[^}]*})\\s*from\\s+['\"][^'\"]*(?:/|^)${escapedName}(?:['\"/]|$)`),
new RegExp(`require\\(\\s*['\"][^'\"]*(?:/|^)${escapedName}(?:['\"/]|$)`),
]
const visited = new Set()
let usageCount = 0
const stack = [...searchRoots]
while (stack.length > 0) {
const currentDir = stack.pop()
if (!currentDir || visited.has(currentDir))
continue
visited.add(currentDir)
const entries = fs.readdirSync(currentDir, { withFileTypes: true })
entries.forEach((entry) => {
const entryPath = path.join(currentDir, entry.name)
if (entry.isDirectory()) {
if (this.shouldSkipDir(entry.name))
return
stack.push(entryPath)
return
}
if (!this.shouldInspectFile(entry.name))
return
const normalizedEntryPath = path.resolve(entryPath)
if (normalizedEntryPath === path.resolve(resolvedComponentPath))
return
const source = fs.readFileSync(entryPath, 'utf-8')
if (!source.includes(searchName))
return
if (patterns.some((pattern) => {
pattern.lastIndex = 0
return pattern.test(source)
})) {
usageCount += 1
}
})
}
return usageCount
}
catch {
// If command fails, return 0
return 0
}
}
collectSearchRoots(resolvedComponentPath) {
const roots = new Set()
let currentDir = path.dirname(resolvedComponentPath)
const workspaceRoot = process.cwd()
while (currentDir && currentDir !== path.dirname(currentDir)) {
if (path.basename(currentDir) === 'app') {
roots.add(currentDir)
break
}
if (currentDir === workspaceRoot)
break
currentDir = path.dirname(currentDir)
}
const fallbackRoots = [
path.join(workspaceRoot, 'app'),
path.join(workspaceRoot, 'web', 'app'),
path.join(workspaceRoot, 'src'),
]
fallbackRoots.forEach((root) => {
if (fs.existsSync(root) && fs.statSync(root).isDirectory())
roots.add(root)
})
return Array.from(roots)
}
shouldSkipDir(dirName) {
const normalized = dirName.toLowerCase()
return [
'node_modules',
'.git',
'.next',
'dist',
'out',
'coverage',
'build',
'__tests__',
'__mocks__',
].includes(normalized)
}
shouldInspectFile(fileName) {
const normalized = fileName.toLowerCase()
if (!(/\.(ts|tsx)$/i.test(fileName)))
return false
if (normalized.endsWith('.d.ts'))
return false
if (/\.(spec|test)\.(ts|tsx)$/.test(normalized))
return false
if (normalized.endsWith('.stories.tsx'))
return false
return true
}
static escapeRegExp(value) {
return value.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
}
/**
* Calculate test priority based on cognitive complexity and usage
*
* Priority Score = 0.7 * Complexity + 0.3 * Usage Score (all normalized to 0-100)
* - Complexity Score: 0-100 (normalized from SonarJS)
* - Usage Score: 0-100 (based on reference count)
*
* Priority Levels (0-100):
* - 0-25: 🟢 LOW
* - 26-50: 🟡 MEDIUM
* - 51-75: 🟠 HIGH
* - 76-100: 🔴 CRITICAL
*/
calculateTestPriority(complexity, usageCount) {
const complexityScore = complexity
// Normalize usage score to 0-100
let usageScore
if (usageCount === 0)
usageScore = 0
else if (usageCount <= 5)
usageScore = 20
else if (usageCount <= 20)
usageScore = 40
else if (usageCount <= 50)
usageScore = 70
else
usageScore = 100
// Weighted average: complexity (70%) + usage (30%)
const totalScore = Math.round(0.7 * complexityScore + 0.3 * usageScore)
return {
score: totalScore,
level: this.getPriorityLevel(totalScore),
usageScore,
complexityScore,
}
}
/**
* Get priority level based on score (0-100 scale)
*/
getPriorityLevel(score) {
if (score > 75)
return '🔴 CRITICAL'
if (score > 50)
return '🟠 HIGH'
if (score > 25)
return '🟡 MEDIUM'
return '🟢 LOW'
}
}
// ============================================================================
// Helper Functions
// ============================================================================
/**
* Resolve directory to entry file
* Priority: index files > common entry files (node.tsx, panel.tsx, etc.)
*/
export function resolveDirectoryEntry(absolutePath, componentPath) {
// Entry files in priority order: index files first, then common entry files
const entryFiles = [
'index.tsx',
'index.ts', // Priority 1: index files
'node.tsx',
'panel.tsx',
'component.tsx',
'main.tsx',
'container.tsx', // Priority 2: common entry files
]
for (const entryFile of entryFiles) {
const entryPath = path.join(absolutePath, entryFile)
if (fs.existsSync(entryPath)) {
return {
absolutePath: entryPath,
componentPath: path.join(componentPath, entryFile),
}
}
}
return null
}
/**
* List analyzable files in directory (for user guidance)
*/
export function listAnalyzableFiles(dirPath) {
try {
const entries = fs.readdirSync(dirPath, { withFileTypes: true })
return entries
.filter(entry => !entry.isDirectory() && /\.(tsx?|jsx?)$/.test(entry.name) && !entry.name.endsWith('.d.ts'))
.map(entry => entry.name)
.sort((a, b) => {
// Prioritize common entry files
const priority = ['index.tsx', 'index.ts', 'node.tsx', 'panel.tsx', 'component.tsx', 'main.tsx', 'container.tsx']
const aIdx = priority.indexOf(a)
const bIdx = priority.indexOf(b)
if (aIdx !== -1 && bIdx !== -1)
return aIdx - bIdx
if (aIdx !== -1)
return -1
if (bIdx !== -1)
return 1
return a.localeCompare(b)
})
}
catch {
return []
}
}
/**
* Extract copy content from prompt (for clipboard)
*/
export function extractCopyContent(prompt) {
const marker = '📋 PROMPT FOR AI ASSISTANT (COPY THIS TO YOUR AI ASSISTANT):'
const markerIndex = prompt.indexOf(marker)
if (markerIndex === -1)
return ''
const section = prompt.slice(markerIndex)
const lines = section.split('\n')
const firstDivider = lines.findIndex(line => line.includes('━━━━━━━━'))
if (firstDivider === -1)
return ''
const startIdx = firstDivider + 1
let endIdx = lines.length
for (let i = startIdx; i < lines.length; i++) {
if (lines[i].includes('━━━━━━━━')) {
endIdx = i
break
}
}
if (startIdx >= endIdx)
return ''
return lines.slice(startIdx, endIdx).join('\n').trim()
}
/**
* Get complexity level label
*/
export function getComplexityLevel(score) {
if (score <= 25)
return '🟢 Simple'
if (score <= 50)
return '🟡 Medium'
if (score <= 75)
return '🟠 Complex'
return '🔴 Very Complex'
}