// 示例：一个简单的冲突预判分析脚本（概念模型）
class ConflictPredictor {
  constructor(repoAnalyzer, teamPatterns) {
    this.repoAnalyzer = repoAnalyzer; // 仓库分析器
    this.teamPatterns = teamPatterns; // 团队协作模式数据
  }

  async analyzePotentialConflict(pullRequest) {
    const warnings = [];

    // 1. 分析修改范围重叠度
    const changedFiles = pullRequest.getChangedFiles();
    const activeBranches = await this.repoAnalyzer.getActiveBranches();
    for (const branch of activeBranches) {
      if (branch.name !== pullRequest.sourceBranch) {
        const branchFiles = await this.repoAnalyzer.getChangedFilesInBranch(branch.name);
        const overlap = changedFiles.filter(f => branchFiles.includes(f));
        if (overlap.length > 0) {
          warnings.push({
            type: 'MERGE_CONFLICT_RISK',
            severity: 'high',
            message: `与分支 "${branch.name}" 在 ${overlap.length} 个文件上存在修改重叠：${overlap.join(', ')}`,
            suggestedAction: '建议提前与分支负责人沟通或考虑分批合并。'
          });
        }
      }
    }

    // 2. 代码风格一致性检查
    const styleViolations = await this.checkCodeStyleConsistency(changedFiles);
    if (styleViolations.length > 0) {
      warnings.push({
        type: 'STYLE_INCONSISTENCY',
        severity: 'medium',
        message: `检测到 ${styleViolations.length} 处代码风格与团队主流风格不一致。`,
        details: styleViolations
      });
    }

    // 3. 架构模式偏离预警（基于历史提交模式学习）
    const archDeviation = await this.detectArchitecturalDeviation(pullRequest);
    if (archDeviation) {
      warnings.push({
        type: 'ARCHITECTURE_DRIFT',
        severity: 'medium',
        message: `本次修改可能偏离了项目约定的 "${archDeviation.pattern}" 模式。`,
        suggestedAction: `请参考文件：${archDeviation.referenceFiles.join(', ')}`
      });
    }

    return warnings;
  }

  async checkCodeStyleConsistency(files) {
    // 模拟检查：例如团队约定使用单引号，但本次提交使用了双引号
    const violations = [];
    // ... 实际实现会调用 ESLint、Prettier 或自定义规则进行 AST 分析
    return violations;
  }

  async detectArchitecturalDeviation(pullRequest) {
    // 基于机器学习模型或规则库，判断修改是否引入新的、非常见的模式
    // 例如，在纯函数式项目中突然引入了类继承，或在集中状态管理项目中新增了分散的事件总线
    return null; // 简略返回
  }
}

// 使用示例
const predictor = new ConflictPredictor(repoAnalyzer, teamPatterns);
predictor.analyzePotentialConflict(myPullRequest).then(warnings => {
  if (warnings.length > 0) {
    console.warn('⚠️  检测到潜在协作风险：');
    warnings.forEach(w => console.warn(`  [${w.type}] ${w.message}`));
    // 可自动生成评论到 PR
  }
});

// 示例：一个简化的实时协同冲突提示组件（使用 WebSocket）
class CollaborativeConflictHint {
  constructor(editor, sessionId, userId) {
    this.editor = editor;
    this.sessionId = sessionId;
    this.userId = userId;
    this.socket = new WebSocket(`wss://collab-server/session/${sessionId}`);
    this.setupWebSocket();
  }

  setupWebSocket() {
    this.socket.onmessage = (event) => {
      const data = JSON.parse(event.data);
      if (data.type === 'EDIT_LOCK') {
        // 收到他人正在编辑某区域的通知
        const { userId, range, filePath } = data.payload;
        if (userId !== this.userId && filePath === this.currentFile) {
          this.highlightConflictRange(range, userId);
        }
      }
      if (data.type === 'POTENTIAL_MERGE_PATH') {
        // 收到服务器计算的推荐合并路径
        this.displayMergeSuggestion(data.payload.suggestions);
      }
    };

    // 监听自身编辑，并广播
    this.editor.on('changes', (changes) => {
      const editRange = this.calculateEditRange(changes);
      this.socket.send(JSON.stringify({
        type: 'EDITING',
        payload: { userId: this.userId, range: editRange, filePath: this.currentFile }
      }));
    });
  }

  highlightConflictRange(range, otherUserId) {
    // 在编辑器上以半透明背景色高亮显示他人正在编辑的区域
    const marker = this.editor.markText(
      { line: range.startLine, ch: range.startCh },
      { line: range.endLine, ch: range.endCh },
      { css: 'background-color: rgba(255, 235, 59, 0.3); border-left: 2px solid #ff9800;' }
    );
    // 添加一个提示小部件
    const widget = document.createElement('div');
    widget.className = 'conflict-hint-widget';
    widget.innerHTML = `👤 ${otherUserId} 正在编辑此区域`;
    this.editor.addWidget({ line: range.startLine, ch: 0 }, widget, false);
    // 3秒后淡出移除
    setTimeout(() => {
      marker.clear();
      widget.remove();
    }, 3000);
  }

  displayMergeSuggestion(suggestions) {
    // 在编辑器下方或侧边栏显示智能合并建议
    const suggestionPanel = document.getElementById('suggestion-panel');
    suggestionPanel.innerHTML = '<h4>🤖 智能合并建议</h4>';
    suggestions.forEach((sugg, idx) => {
      const div = document.createElement('div');
      div.className = 'suggestion-item';
      div.innerHTML = `
        <p><strong>方案 ${idx + 1}:</strong> ${sugg.description}</p>
        <pre><code>${sugg.previewCode}</code></pre>
        <button onclick="applySuggestion(${idx})">应用此方案</button>
      `;
      suggestionPanel.appendChild(div);
    });
  }
}