feat(format): Enhance format module with rollback, diff reporting, and improved parallel execution

ts/mod_format/classes.diffreporter.ts

@@ -0,0 +1,108 @@
+import * as plugins from './mod.plugins.js';
+import type { IPlannedChange } from './interfaces.format.js';
+import { logger } from '../gitzone.logging.js';
+
+export class DiffReporter {
+  private diffs: Map<string, string> = new Map();
+  
+  async generateDiff(filePath: string, oldContent: string, newContent: string): Promise<string> {
+    const diff = plugins.smartdiff.createDiff(oldContent, newContent);
+    this.diffs.set(filePath, diff);
+    return diff;
+  }
+  
+  async generateDiffForChange(change: IPlannedChange): Promise<string | null> {
+    if (change.type !== 'modify') {
+      return null;
+    }
+    
+    try {
+      const exists = await plugins.smartfile.fs.fileExists(change.path);
+      if (!exists) {
+        return null;
+      }
+      
+      const currentContent = await plugins.smartfile.fs.toStringSync(change.path);
+      
+      // For planned changes, we need the new content
+      if (!change.content) {
+        return null;
+      }
+      
+      return await this.generateDiff(change.path, currentContent, change.content);
+    } catch (error) {
+      logger.log('error', `Failed to generate diff for ${change.path}: ${error.message}`);
+      return null;
+    }
+  }
+  
+  displayDiff(filePath: string, diff?: string): void {
+    const diffToShow = diff || this.diffs.get(filePath);
+    
+    if (!diffToShow) {
+      logger.log('warn', `No diff available for ${filePath}`);
+      return;
+    }
+    
+    console.log(`\n${this.formatDiffHeader(filePath)}`);
+    console.log(this.colorDiff(diffToShow));
+    console.log('━'.repeat(50));
+  }
+  
+  displayAllDiffs(): void {
+    if (this.diffs.size === 0) {
+      logger.log('info', 'No diffs to display');
+      return;
+    }
+    
+    console.log('\nFile Changes:');
+    console.log('═'.repeat(50));
+    
+    for (const [filePath, diff] of this.diffs) {
+      this.displayDiff(filePath, diff);
+    }
+  }
+  
+  private formatDiffHeader(filePath: string): string {
+    return `📄 ${filePath}`;
+  }
+  
+  private colorDiff(diff: string): string {
+    const lines = diff.split('\n');
+    const coloredLines = lines.map(line => {
+      if (line.startsWith('+') && !line.startsWith('+++')) {
+        return `\x1b[32m${line}\x1b[0m`; // Green for additions
+      } else if (line.startsWith('-') && !line.startsWith('---')) {
+        return `\x1b[31m${line}\x1b[0m`; // Red for deletions
+      } else if (line.startsWith('@')) {
+        return `\x1b[36m${line}\x1b[0m`; // Cyan for line numbers
+      } else {
+        return line;
+      }
+    });
+    
+    return coloredLines.join('\n');
+  }
+  
+  async saveDiffReport(outputPath: string): Promise<void> {
+    const report = {
+      timestamp: new Date().toISOString(),
+      totalFiles: this.diffs.size,
+      diffs: Array.from(this.diffs.entries()).map(([path, diff]) => ({
+        path,
+        diff
+      }))
+    };
+    
+    await plugins.smartfile.memory.toFs(JSON.stringify(report, null, 2), outputPath);
+    logger.log('info', `Diff report saved to ${outputPath}`);
+  }
+  
+  hasAnyDiffs(): boolean {
+    return this.diffs.size > 0;
+  }
+  
+  getDiffCount(): number {
+    return this.diffs.size;
+  }
+}