File Management

/**
 * Move file or directory (copy + delete)
 * @param from - Source path
 * @param to - Destination path  
 * @param options - Copy options applied during move
 */
function move(from: string, to: string, options?: CopyOptions): void;

interface CopyOptions {
  /** Disable glob pattern matching (default: false) */
  noGlob?: boolean;
  /** Options passed to glob library */
  globOptions?: GlobOptions;
  /** Don't throw error if no files match pattern (default: false) */
  ignoreNoMatch?: boolean;
  /** Base path for relative source paths */
  fromBasePath?: string;
  /** Transform destination paths */
  processDestinationPath?: (path: string) => string;
  /** Append to destination files instead of overwriting */
  append?: boolean;
  /** Process file contents during move */
  process?: (contents: string | Buffer, filepath: string, destination: string) => string | Buffer;
}

import { create as createMemFs } from "mem-fs";
import { create as createEditor } from "mem-fs-editor";

const store = createMemFs();
const fs = createEditor(store);

// Move single file
fs.move("old-location/file.txt", "new-location/file.txt");

// Move and rename
fs.move("temp/draft.md", "docs/final.md");

// Move with directory creation
fs.move("src/components/Button.tsx", "src/ui/components/Button.tsx");

// Move with path transformation
fs.move("legacy/old-config.json", "config/app-config.json", {
  process: (contents) => {
    // Update config format during move
    const config = JSON.parse(contents.toString());
    return JSON.stringify({
      version: "2.0",
      ...config,
      migrated: true
    }, null, 2);
  }
});

/**
 * Delete files using glob patterns
 * @param paths - File paths or glob patterns to delete
 * @param options - Deletion configuration options
 */
function delete(paths: string | string[], options?: DeleteOptions): void;

interface DeleteOptions {
  /** Options passed to glob library for pattern matching */
  globOptions?: GlobOptions;
}

interface GlobOptions {
  /** Exclude directories from results */
  nodir?: boolean;
  /** Patterns to ignore during deletion */
  ignore?: string | string[];
  /** Additional glob options */
  [key: string]: any;
}

// Delete single file
fs.delete("temp/cache.txt");

// Delete multiple specific files
fs.delete(["temp/file1.txt", "temp/file2.txt"]);

// Delete with glob pattern
fs.delete("temp/**/*.tmp");

// Delete all files in directory
fs.delete("logs/*");

// Delete with exclusions
fs.delete("dist/**/*", {
  globOptions: {
    ignore: ["dist/important/**", "dist/*.config.js"]
  }
});

// Delete only files, not directories
fs.delete("cleanup/**/*", {
  globOptions: {
    nodir: true
  }
});

// Reorganize project structure
const moveOperations = [
  { from: "old-src/**/*.js", to: "src/js/" },
  { from: "old-styles/**/*.css", to: "src/styles/" },
  { from: "old-assets/**/*.{png,jpg}", to: "src/assets/images/" }
];

moveOperations.forEach(({ from, to }) => {
  fs.move(from, to, {
    processDestinationPath: (path) => {
      // Maintain filename, change directory structure
      const filename = path.split("/").pop();
      return `${to}${filename}`;
    }
  });
});

// Clean up after reorganization
fs.delete(["old-src/**/*", "old-styles/**/*", "old-assets/**/*"]);

// Move files based on content
fs.copy("mixed/**/*.js", "temp/"); // Copy to analyze first

// Process each file and move based on content
const filesToMove = fs.dump("temp/");
Object.keys(filesToMove).forEach(filepath => {
  const contents = fs.read(filepath);
  
  if (contents.includes("import React")) {
    fs.move(filepath, `src/components/${filepath.split("/").pop()}`);
  } else if (contents.includes("export default")) {
    fs.move(filepath, `src/utils/${filepath.split("/").pop()}`);
  } else {
    fs.move(filepath, `src/misc/${filepath.split("/").pop()}`);
  }
});

// Clean up temp directory
fs.delete("temp/**/*");

// Create backup before moving important files
fs.copy("config/**/*", "backup/config/");
fs.move("config/production.json", "config/prod.config.json");

// Move with validation
const moveWithValidation = (from, to) => {
  if (fs.exists(from)) {
    const contents = fs.read(from);
    if (contents && contents.length > 0) {
      fs.move(from, to);
      console.log(`Moved ${from} to ${to}`);
    } else {
      console.warn(`Skipping empty file: ${from}`);
    }
  } else {
    console.warn(`Source file not found: ${from}`);
  }
};

moveWithValidation("data/temp.json", "data/processed.json");

// Clean up generated files
fs.delete([
  "**/*.tmp",
  "**/.DS_Store", 
  "**/Thumbs.db",
  "**/*.log",
  "**/node_modules/.cache/**/*"
]);

// Clean up by file age (using custom logic)
const oldFiles = fs.dump();
Object.keys(oldFiles).forEach(filepath => {
  // Custom logic for old file detection would go here
  if (filepath.includes("temp-") && filepath.includes("2023")) {
    fs.delete(filepath);
  }
});

// Clean up empty directories (directories without files)
fs.delete("**/*/", {
  globOptions: {
    // This would need custom implementation as mem-fs-editor 
    // doesn't directly support empty directory detection
  }
});

// Rename files with pattern
const renamePattern = (oldPath, newPattern) => {
  const filename = oldPath.split("/").pop();
  const directory = oldPath.substring(0, oldPath.lastIndexOf("/"));
  const newFilename = filename.replace(/old-prefix-/, newPattern);
  return `${directory}/${newFilename}`;
};

// Apply rename pattern
const filesToRename = fs.dump("src/components/");
Object.keys(filesToRename).forEach(filepath => {
  if (filepath.includes("old-prefix-")) {
    const newPath = renamePattern(filepath, "new-prefix-");
    fs.move(filepath, newPath);
  }
});

// Convert file extensions during move
fs.move("typescript/**/*.ts", "javascript/", {
  processDestinationPath: (path) => {
    return path.replace(/\.ts$/, ".js").replace("typescript/", "javascript/");
  },
  process: (contents) => {
    // Basic TypeScript to JavaScript conversion
    return contents
      .toString()
      .replace(/: \w+/g, "")  // Remove type annotations
      .replace(/interface \w+.*?{.*?}/gs, ""); // Remove interfaces
  }
});

// Safe delete with error handling
const safeDelete = (patterns) => {
  try {
    fs.delete(patterns, { globOptions: { nodir: true } });
    console.log(`Deleted files matching: ${patterns}`);
  } catch (error) {
    if (error.message.includes("no files found")) {
      console.log(`No files found for pattern: ${patterns}`);
    } else {
      console.error(`Delete failed: ${error.message}`);
    }
  }
};

safeDelete("temp/**/*.tmp");

// Safe move with existence check
const safeMove = (from, to) => {
  if (fs.exists(from)) {
    try {
      fs.move(from, to);
      console.log(`Moved ${from} to ${to}`);
    } catch (error) {
      console.error(`Failed to move ${from} to ${to}: ${error.message}`);
    }
  } else {
    console.warn(`Source file does not exist: ${from}`);
  }
};

safeMove("old/location.txt", "new/location.txt");

// Bulk operation with error collection
const errors = [];
const moveOperations = [
  { from: "src/old1.js", to: "dist/new1.js" },
  { from: "src/old2.js", to: "dist/new2.js" }
];

moveOperations.forEach(({ from, to }) => {
  try {
    fs.move(from, to);
  } catch (error) {
    errors.push({ operation: "move", from, to, error: error.message });
  }
});

if (errors.length > 0) {
  console.error("Some operations failed:", errors);
}