abyss-ai/src/agent/reasoning/ultrareasoning-processor.ts

Autonomous AI coding agent - enhanced OpenCode with autonomous capabilities

import { ReasoningMode, type ProcessingContext, type ProcessingResult } from "../types/agent"
import { BaseReasoningProcessor } from "./reasoning-processor"

// Ultrareasoning - Structural/Logical Validation
export class UltrareasoningProcessor extends BaseReasoningProcessor {
  readonly mode = ReasoningMode.ULTRAREASONING

  async process(code: string, context: ProcessingContext): Promise<ProcessingResult> {
    this.log.info("Starting ultrareasoning analysis", { 
      codeLength: code.length,
      language: context.language 
    })

    const { result: analysisResult, duration } = await this.measureExecutionTime(async () => {
      // Deep structural and logical validation
      const structureValidation = await this.validateStructure(code)
      const logicalValidation = await this.validateLogic(code, context)
      const consistencyCheck = await this.checkConsistency(code, context)
      
      return {
        structure: structureValidation,
        logic: logicalValidation,
        consistency: consistencyCheck
      }
    })

    const confidence = this.calculateConfidence(analysisResult)
    const validationReport = this.generateValidationReport(
      analysisResult.structure, 
      analysisResult.logic
    )

    return {
      type: 'ultrareasoning',
      result: analysisResult,
      confidence,
      processingTime: duration,
      validationReport
    }
  }

  calculateConfidence(result: any): number {
    if (!result) return 0.1
    
    const { structure, logic, consistency } = result
    
    // Weight the confidence based on validation success
    const structureScore = (structure.score || 0) * 0.4
    const logicScore = (logic.score || 0) * 0.4  
    const consistencyScore = (consistency.score || 0) * 0.2
    
    return Math.min(1, structureScore + logicScore + consistencyScore)
  }

  private async validateStructure(code: string) {
    this.log.debug("Validating code structure")
    
    const structure = this.analyzeCodeStructure(code)
    const issues = []
    let score = 1.0
    
    // Syntax validation
    const syntaxIssues = this.checkSyntax(code)
    if (syntaxIssues.length > 0) {
      issues.push(...syntaxIssues)
      score -= syntaxIssues.length * 0.1
    }
    
    // Structural patterns
    const structuralIssues = this.checkStructuralPatterns(code, structure)
    if (structuralIssues.length > 0) {
      issues.push(...structuralIssues)
      score -= structuralIssues.length * 0.05
    }
    
    // Architectural validation
    const architecturalIssues = this.validateArchitecture(structure)
    if (architecturalIssues.length > 0) {
      issues.push(...architecturalIssues)
      score -= architecturalIssues.length * 0.1
    }
    
    return {
      score: Math.max(0, score),
      issues,
      structure,
      metrics: this.calculateStructuralMetrics(structure),
      valid: issues.length === 0
    }
  }

  private checkSyntax(code: string) {
    const issues = []
    
    // Basic syntax checks
    const braceBalance = this.checkBraceBalance(code)
    if (!braceBalance.balanced) {
      issues.push({
        type: 'syntax',
        severity: 'high',
        message: `Unbalanced braces: ${braceBalance.issue}`,
        line: braceBalance.line
      })
    }
    
    const parenBalance = this.checkParenthesesBalance(code)
    if (!parenBalance.balanced) {
      issues.push({
        type: 'syntax', 
        severity: 'high',
        message: `Unbalanced parentheses: ${parenBalance.issue}`,
        line: parenBalance.line
      })
    }
    
    // Common syntax errors
    const commonErrors = this.checkCommonSyntaxErrors(code)
    issues.push(...commonErrors)
    
    return issues
  }

  private checkBraceBalance(code: string) {
    let balance = 0
    let line = 1
    let lastImbalanceLine = 0
    
    for (let i = 0; i < code.length; i++) {
      if (code[i] === '\n') line++
      
      if (code[i] === '{') {
        balance++
      } else if (code[i] === '}') {
        balance--
        if (balance < 0) {
          lastImbalanceLine = line
        }
      }
    }
    
    return {
      balanced: balance === 0,
      issue: balance > 0 ? 'Missing closing braces' : 'Extra closing braces',
      line: lastImbalanceLine || line
    }
  }

  private checkParenthesesBalance(code: string) {
    let balance = 0
    let line = 1
    let lastImbalanceLine = 0
    
    for (let i = 0; i < code.length; i++) {
      if (code[i] === '\n') line++
      
      if (code[i] === '(') {
        balance++
      } else if (code[i] === ')') {
        balance--
        if (balance < 0) {
          lastImbalanceLine = line
        }
      }
    }
    
    return {
      balanced: balance === 0,
      issue: balance > 0 ? 'Missing closing parentheses' : 'Extra closing parentheses',
      line: lastImbalanceLine || line
    }
  }

  private checkCommonSyntaxErrors(code: string) {
    const issues: any[] = []
    const lines = code.split('\n')
    
    lines.forEach((line, index) => {
      const lineNum = index + 1
      
      // Missing semicolons (for languages that use them)
      if (line.match(/^[^\/]*[a-zA-Z0-9_\]]$/) && !line.trim().endsWith(';') && !line.includes('{')) {
        issues.push({
          type: 'syntax',
          severity: 'low',
          message: 'Possible missing semicolon',
          line: lineNum
        })
      }
      
      // Unclosed strings
      const quotes = line.match(/["'`]/g)
      if (quotes && quotes.length % 2 !== 0) {
        issues.push({
          type: 'syntax',
          severity: 'medium',
          message: 'Possible unclosed string',
          line: lineNum
        })
      }
    })
    
    return issues
  }

  private checkStructuralPatterns(code: string, structure: any) {
    const issues: any[] = []
    
    // Function complexity
    if (structure.functions) {
      structure.functions.forEach((funcName: string) => {
        const funcComplexity = this.getFunctionComplexity(code, funcName)
        if (funcComplexity > 10) {
          issues.push({
            type: 'structural',
            severity: 'medium',
            message: `Function '${funcName}' has high cyclomatic complexity (${funcComplexity})`,
            suggestion: 'Consider breaking down into smaller functions'
          })
        }
      })
    }
    
    // Deep nesting
    const maxNesting = this.getMaxNestingDepth(code)
    if (maxNesting > 4) {
      issues.push({
        type: 'structural',
        severity: 'medium',
        message: `Deep nesting detected (${maxNesting} levels)`,
        suggestion: 'Consider reducing nesting depth'
      })
    }
    
    // Long parameter lists
    const longParams = this.findLongParameterLists(code)
    longParams.forEach(func => {
      issues.push({
        type: 'structural',
        severity: 'low',
        message: `Function has many parameters (${func.paramCount})`,
        suggestion: 'Consider using an options object'
      })
    })
    
    return issues
  }

  private getFunctionComplexity(code: string, funcName: string): number {
    const funcRegex = new RegExp(`function\\s+${funcName}[^{]*{([^}]*)}`, 's')
    const match = code.match(funcRegex)
    
    if (match) {
      return this.calculateUltraCyclomaticComplexity(match[1])
    }
    
    return 0
  }

  private calculateUltraCyclomaticComplexity(code: string): number {
    const patterns = [
      /\bif\s*\(/g,
      /\belse\s+if\b/g,
      /\bwhile\s*\(/g,
      /\bfor\s*\(/g,
      /\bcase\s+/g,
      /\bcatch\s*\(/g,
      /\?\s*.*\s*:/g,
      /&&/g,
      /\|\|/g
    ]
    
    return patterns.reduce((complexity, pattern) => {
      const matches = code.match(pattern)
      return complexity + (matches ? matches.length : 0)
    }, 1)
  }

  private getMaxNestingDepth(code: string): number {
    let maxDepth = 0
    let currentDepth = 0
    
    for (const char of code) {
      if (char === '{') {
        currentDepth++
        maxDepth = Math.max(maxDepth, currentDepth)
      } else if (char === '}') {
        currentDepth--
      }
    }
    
    return maxDepth
  }

  private findLongParameterLists(code: string) {
    const funcRegex = /function\s+(\w+)\s*\(([^)]*)\)/g
    const longParams = []
    let match
    
    while ((match = funcRegex.exec(code)) !== null) {
      const params = match[2].split(',').filter(p => p.trim())
      if (params.length > 5) {
        longParams.push({
          name: match[1],
          paramCount: params.length
        })
      }
    }
    
    return longParams
  }

  private validateArchitecture(structure: any) {
    const issues: any[] = []
    
    // Check for circular dependencies
    if (structure.imports && structure.imports.length > 0) {
      const circularDeps = this.detectCircularDependencies(structure.imports)
      if (circularDeps.length > 0) {
        issues.push({
          type: 'architectural',
          severity: 'high',
          message: 'Potential circular dependencies detected',
          dependencies: circularDeps
        })
      }
    }
    
    // Check separation of concerns
    const concernsIssues = this.checkSeparationOfConcerns(structure)
    issues.push(...concernsIssues)
    
    return issues
  }

  private detectCircularDependencies(imports: string[]): string[] {
    // Simplified circular dependency detection
    const relativePaths = imports.filter(imp => imp.startsWith('.'))
    const duplicates = relativePaths.filter((item, index) => relativePaths.indexOf(item) !== index)
    
    return duplicates
  }

  private checkSeparationOfConcerns(structure: any) {
    const issues: any[] = []
    
    // Check if a single file has too many responsibilities
    const responsibilities = []
    
    if (structure.functions && structure.functions.length > 10) {
      responsibilities.push('many functions')
    }
    
    if (structure.classes && structure.classes.length > 3) {
      responsibilities.push('multiple classes')
    }
    
    if (structure.imports && structure.imports.length > 15) {
      responsibilities.push('many dependencies')
    }
    
    if (responsibilities.length > 2) {
      issues.push({
        type: 'architectural',
        severity: 'medium',
        message: 'File may have too many responsibilities',
        responsibilities,
        suggestion: 'Consider splitting into multiple files'
      })
    }
    
    return issues
  }

  private calculateStructuralMetrics(structure: any) {
    return {
      linesOfCode: structure.lineCount,
      cyclomaticComplexity: structure.complexity,
      functionCount: structure.functions?.length || 0,
      classCount: structure.classes?.length || 0,
      importCount: structure.imports?.length || 0,
      cohesion: this.calculateCohesion(structure),
      coupling: this.calculateCoupling(structure)
    }
  }

  private calculateCohesion(structure: any): number {
    // Simplified cohesion calculation
    const totalElements = (structure.functions?.length || 0) + (structure.classes?.length || 0)
    const imports = structure.imports?.length || 0
    
    if (totalElements === 0) return 1
    
    // Higher cohesion when fewer external dependencies relative to internal elements
    return Math.max(0, 1 - (imports / (totalElements * 2)))
  }

  private calculateCoupling(structure: any): number {
    // Simplified coupling calculation based on imports
    const imports = structure.imports?.length || 0
    
    // Normalize coupling score (lower is better)
    return Math.min(1, imports / 10)
  }

  private async validateLogic(code: string, _context: ProcessingContext) {
    this.log.debug("Validating code logic")
    
    const issues = []
    let score = 1.0
    
    // Data flow analysis
    const dataFlowIssues = this.analyzeDataFlow(code)
    if (dataFlowIssues.length > 0) {
      issues.push(...dataFlowIssues)
      score -= dataFlowIssues.length * 0.1
    }
    
    // Logical consistency checks
    const consistencyIssues = this.checkLogicalConsistency(code)
    if (consistencyIssues.length > 0) {
      issues.push(...consistencyIssues)
      score -= consistencyIssues.length * 0.15
    }
    
    // Type consistency (if applicable)
    const typeIssues = this.checkTypeConsistency(code)
    if (typeIssues.length > 0) {
      issues.push(...typeIssues)
      score -= typeIssues.length * 0.1
    }
    
    return {
      score: Math.max(0, score),
      issues,
      dataFlow: this.mapDataFlow(code),
      valid: issues.filter(i => i.severity === 'high').length === 0
    }
  }

  private analyzeDataFlow(code: string) {
    const issues: any[] = []
    
    // Check for undefined variables
    const undefinedVars = this.findUndefinedVariables(code)
    undefinedVars.forEach(varName => {
      issues.push({
        type: 'logic',
        severity: 'high',
        message: `Variable '${varName}' may be used before definition`,
        variable: varName
      })
    })
    
    // Check for unused variables
    const unusedVars = this.findUnusedVariables(code)
    unusedVars.forEach(varName => {
      issues.push({
        type: 'logic',
        severity: 'low',
        message: `Variable '${varName}' is declared but never used`,
        variable: varName
      })
    })
    
    return issues
  }

  private findUndefinedVariables(code: string): string[] {
    // Simplified undefined variable detection
    const declared = new Set<string>()
    const used = new Set<string>()
    
    // Find declarations
    const declMatches = code.matchAll(/(?:let|const|var)\s+(\w+)/g)
    for (const match of declMatches) {
      declared.add(match[1])
    }
    
    // Find usage
    const useMatches = code.matchAll(/\b(\w+)\s*[=\(\[\.]/g)
    for (const match of useMatches) {
      used.add(match[1])
    }
    
    // Return variables used but not declared
    return Array.from(used).filter(v => !declared.has(v) && !this.isBuiltIn(v))
  }

  private findUnusedVariables(code: string): string[] {
    const declared = new Set<string>()
    const used = new Set<string>()
    
    // Find declarations
    const declMatches = code.matchAll(/(?:let|const|var)\s+(\w+)/g)
    for (const match of declMatches) {
      declared.add(match[1])
    }
    
    // Find usage (excluding declarations)
    const useMatches = code.matchAll(/(?<!(?:let|const|var)\s+)\b(\w+)\b/g)
    for (const match of useMatches) {
      used.add(match[1])
    }
    
    // Return declared but unused variables
    return Array.from(declared).filter(v => !used.has(v))
  }

  private isBuiltIn(varName: string): boolean {
    const builtIns = [
      'console', 'window', 'document', 'process', 'global',
      'require', 'module', 'exports', 'Buffer', 'setTimeout',
      'setInterval', 'clearTimeout', 'clearInterval', 'Promise'
    ]
    
    return builtIns.includes(varName)
  }

  private checkLogicalConsistency(code: string) {
    const issues: any[] = []
    
    // Check for logical contradictions
    const contradictions = this.findLogicalContradictions(code)
    issues.push(...contradictions)
    
    // Check for unreachable code
    const unreachable = this.findUnreachableCode(code)
    issues.push(...unreachable)
    
    return issues
  }

  private findLogicalContradictions(code: string) {
    const issues: any[] = []
    const lines = code.split('\n')
    
    lines.forEach((line, index) => {
      // Check for always true/false conditions
      if (line.includes('if (true)') || line.includes('if(true)')) {
        issues.push({
          type: 'logic',
          severity: 'medium',
          message: 'Condition is always true',
          line: index + 1
        })
      }
      
      if (line.includes('if (false)') || line.includes('if(false)')) {
        issues.push({
          type: 'logic',
          severity: 'medium', 
          message: 'Condition is always false',
          line: index + 1
        })
      }
    })
    
    return issues
  }

  private findUnreachableCode(code: string) {
    const issues: any[] = []
    const lines = code.split('\n')
    
    for (let i = 0; i < lines.length - 1; i++) {
      const line = lines[i].trim()
      const nextLine = lines[i + 1].trim()
      
      // Code after return statement
      if (line.includes('return') && nextLine && !nextLine.startsWith('}') && !nextLine.startsWith('//')) {
        issues.push({
          type: 'logic',
          severity: 'medium',
          message: 'Unreachable code after return statement',
          line: i + 2
        })
      }
    }
    
    return issues
  }

  private checkTypeConsistency(code: string) {
    const issues = []
    
    // Basic type consistency checks
    const typeIssues = this.findTypeInconsistencies(code)
    issues.push(...typeIssues)
    
    return issues
  }

  private findTypeInconsistencies(code: string) {
    const issues = []
    
    // Check for number/string comparisons
    const numStringComparisons = code.match(/\d+\s*[=!]==\s*["'`]|["'`]\s*[=!]==\s*\d+/g)
    if (numStringComparisons) {
      issues.push({
        type: 'type',
        severity: 'medium',
        message: 'Comparing number with string',
        suggestion: 'Consider using strict equality (===) and type conversion'
      })
    }
    
    return issues
  }

  private mapDataFlow(code: string) {
    // Simplified data flow mapping
    const variables = []
    const functions = []
    
    // Extract variable assignments
    const assignments = code.matchAll(/(\w+)\s*=\s*([^;]+)/g)
    for (const match of assignments) {
      variables.push({
        name: match[1],
        assignment: match[2].trim()
      })
    }
    
    // Extract function calls
    const calls = code.matchAll(/(\w+)\s*\(/g)
    for (const match of calls) {
      functions.push(match[1])
    }
    
    return { variables, functions }
  }

  private async checkConsistency(code: string, _context: ProcessingContext) {
    this.log.debug("Checking code consistency")
    
    const issues = []
    let score = 1.0
    
    // Naming consistency
    const namingIssues = this.checkNamingConsistency(code)
    if (namingIssues.length > 0) {
      issues.push(...namingIssues)
      score -= namingIssues.length * 0.05
    }
    
    // Style consistency
    const styleIssues = this.checkStyleConsistency(code)
    if (styleIssues.length > 0) {
      issues.push(...styleIssues)
      score -= styleIssues.length * 0.02
    }
    
    // Pattern consistency
    const patternIssues = this.checkPatternConsistency(code)
    if (patternIssues.length > 0) {
      issues.push(...patternIssues)
      score -= patternIssues.length * 0.1
    }
    
    return {
      score: Math.max(0, score),
      issues,
      valid: issues.filter(i => i.severity === 'high').length === 0
    }
  }

  private checkNamingConsistency(code: string) {
    const issues = []
    
    // Check variable naming conventions
    const variables = code.match(/(?:let|const|var)\s+(\w+)/g) || []
    const namingStyles = new Set()
    
    variables.forEach(varDecl => {
      const varName = varDecl.split(/\s+/)[1]
      
      if (varName.includes('_')) {
        namingStyles.add('snake_case')
      } else if (varName.match(/[a-z][A-Z]/)) {
        namingStyles.add('camelCase')
      } else if (varName.match(/^[A-Z]/)) {
        namingStyles.add('PascalCase')
      }
    })
    
    if (namingStyles.size > 1) {
      issues.push({
        type: 'consistency',
        severity: 'low',
        message: 'Inconsistent variable naming conventions',
        styles: Array.from(namingStyles)
      })
    }
    
    return issues
  }

  private checkStyleConsistency(code: string) {
    const issues = []
    
    // Check indentation consistency
    const lines = code.split('\n').filter(line => line.trim())
    const indentations = new Set()
    
    lines.forEach(line => {
      const indent = line.match(/^(\s*)/)?.[1] || ''
      if (indent.length > 0) {
        indentations.add(indent.includes('\t') ? 'tabs' : `${indent.length}spaces`)
      }
    })
    
    if (indentations.size > 2) { // Allow some variation
      issues.push({
        type: 'consistency',
        severity: 'low',
        message: 'Inconsistent indentation style',
        styles: Array.from(indentations)
      })
    }
    
    return issues
  }

  private checkPatternConsistency(code: string) {
    const issues = []
    
    // Check error handling patterns
    const hasAsyncAwait = code.includes('async') && code.includes('await')
    const hasPromises = code.includes('Promise') || code.includes('.then(')
    const hasTryCatch = code.includes('try') && code.includes('catch')
    
    if (hasAsyncAwait && hasPromises && !hasTryCatch) {
      issues.push({
        type: 'consistency',
        severity: 'medium',
        message: 'Mixed async patterns without proper error handling',
        suggestion: 'Consider consistent error handling with try-catch blocks'
      })
    }
    
    return issues
  }

  private generateValidationReport(structureValidation: any, logicalValidation: any) {
    const totalIssues = [
      ...(structureValidation.issues || []),
      ...(logicalValidation.issues || [])
    ]
    
    const severityCounts = {
      high: totalIssues.filter(i => i.severity === 'high').length,
      medium: totalIssues.filter(i => i.severity === 'medium').length,
      low: totalIssues.filter(i => i.severity === 'low').length
    }
    
    return {
      summary: {
        totalIssues: totalIssues.length,
        severityCounts,
        structureScore: structureValidation.score,
        logicScore: logicalValidation.score,
        overallScore: (structureValidation.score + logicalValidation.score) / 2
      },
      recommendations: this.generateRecommendations(totalIssues),
      metrics: structureValidation.metrics
    }
  }

  private generateRecommendations(issues: any[]) {
    const recommendations = []
    
    const highIssues = issues.filter(i => i.severity === 'high')
    if (highIssues.length > 0) {
      recommendations.push('Address high-severity issues immediately')
    }
    
    const structuralIssues = issues.filter(i => i.type === 'structural')
    if (structuralIssues.length > 3) {
      recommendations.push('Consider refactoring for better code structure')
    }
    
    const logicIssues = issues.filter(i => i.type === 'logic')
    if (logicIssues.length > 0) {
      recommendations.push('Review logic flow and data handling')
    }
    
    return recommendations
  }
}