windjammer 0.48.0

// std/fs - File system operations with proper abstraction
// Implementation: Rust std::fs and std::path (wrapped for clean API)

// PUBLIC API - Users interact with these types only

//===============================================
// FILE OPERATIONS
//===============================================

// Read entire file as string
fn read_to_string(path: string) -> Result<string, string> {
    // Wraps: std::fs::read_to_string(path)
    Err("File system operation failed")
}

// Read entire file as bytes
fn read(path: string) -> Result<Vec<u8>, string> {
    // Wraps: std::fs::read(path)
    Err("File system operation failed")
}

// Write string to file (creates or truncates)
fn write(path: string, contents: string) -> Result<(), string> {
    // Wraps: std::fs::write(path, contents)
    Err("File system operation failed")
}

// Write bytes to file (creates or truncates)
fn write_bytes(path: string, contents: Vec<u8>) -> Result<(), string> {
    // Wraps: std::fs::write(path, contents)
    Err("File system operation failed")
}

// Append string to file
fn append(path: string, contents: string) -> Result<(), string> {
    // Wraps: OpenOptions::new().append(true).write().open() + write_all
    Err("File system operation failed")
}

// Copy file from source to destination
fn copy(from: string, to: string) -> Result<(), string> {
    // Wraps: std::fs::copy(from, to)
    Err("File system operation failed")
}

// Move/rename file
fn rename(from: string, to: string) -> Result<(), string> {
    // Wraps: std::fs::rename(from, to)
    Err("File system operation failed")
}

// Delete file
fn remove_file(path: string) -> Result<(), string> {
    // Wraps: std::fs::remove_file(path)
    Err("File system operation failed")
}

// Check if file exists
fn exists(path: string) -> bool {
    // Wraps: Path::new(path).exists()
    false
}

// Check if path is a file
fn is_file(path: string) -> bool {
    // Wraps: Path::new(path).is_file()
    false
}

// Check if path is a directory
fn is_dir(path: string) -> bool {
    // Wraps: Path::new(path).is_dir()
    false
}

//===============================================
// DIRECTORY OPERATIONS
//===============================================

// Create directory (fails if parent doesn't exist)
fn create_dir(path: string) -> Result<(), string> {
    // Wraps: std::fs::create_dir(path)
    Err("Directory operation failed")
}

// Create directory and all parent directories
fn create_dir_all(path: string) -> Result<(), string> {
    // Wraps: std::fs::create_dir_all(path)
    Err("Directory operation failed")
}

// Remove empty directory
fn remove_dir(path: string) -> Result<(), string> {
    // Wraps: std::fs::remove_dir(path)
    Err("Directory operation failed")
}

// Remove directory and all contents
fn remove_dir_all(path: string) -> Result<(), string> {
    // Wraps: std::fs::remove_dir_all(path)
    Err("Directory operation failed")
}

// List directory contents
fn read_dir(path: string) -> Result<Vec<DirEntry>, string> {
    // Wraps: std::fs::read_dir(path) and collect
    Err("Directory operation failed")
}

// Get current working directory
fn current_dir() -> Result<string, string> {
    // Wraps: std::env::current_dir()
    Err("Directory operation failed")
}

// Set current working directory
fn set_current_dir(path: string) -> Result<(), string> {
    // Wraps: std::env::set_current_dir(path)
    Err("Directory operation failed")
}

//===============================================
// METADATA
//===============================================

struct Metadata {
    size: int,
    is_file: bool,
    is_dir: bool,
    is_readonly: bool,
    // Private: Wraps std::fs::Metadata
}

struct DirEntry {
    name: string,
    path: string,
    is_file: bool,
    is_dir: bool,
    // Private: Wraps std::fs::DirEntry
}

// Get file/directory metadata
fn metadata(path: string) -> Result<Metadata, string> {
    // Wraps: std::fs::metadata(path)
    Err("Metadata operation failed")
}

impl Metadata {
    fn size(self) -> int {
        // Wraps: metadata.len()
        self.size
    }
    
    fn is_file(self) -> bool {
        // Wraps: metadata.is_file()
        self.is_file
    }
    
    fn is_dir(self) -> bool {
        // Wraps: metadata.is_dir()
        self.is_dir
    }
    
    fn is_readonly(self) -> bool {
        // Wraps: metadata.permissions().readonly()
        self.is_readonly
    }
}

impl DirEntry {
    fn name(self) -> string {
        // Wraps: entry.file_name().to_string_lossy()
        self.name
    }
    
    fn path(self) -> string {
        // Wraps: entry.path().to_string_lossy()
        self.path
    }
    
    fn is_file(self) -> bool {
        // Wraps: entry.file_type().is_file()
        self.is_file
    }
    
    fn is_dir(self) -> bool {
        // Wraps: entry.file_type().is_dir()
        self.is_dir
    }
    
    fn metadata(self) -> Result<Metadata, string> {
        // Wraps: entry.metadata()
        Err("Metadata operation failed")
    }
}

//===============================================
// PATH UTILITIES
//===============================================

// Join path components
fn join(base: string, component: string) -> string {
    // Wraps: Path::new(base).join(component).to_string_lossy()
    format!("{}/{}", base, component)
}

// Get file extension
fn extension(path: string) -> Option<string> {
    // Wraps: Path::new(path).extension()
    None
}

// Get file name (last component)
fn file_name(path: string) -> Option<string> {
    // Wraps: Path::new(path).file_name()
    None
}

// Get file stem (name without extension)
fn file_stem(path: string) -> Option<string> {
    // Wraps: Path::new(path).file_stem()
    None
}

// Get parent directory
fn parent(path: string) -> Option<string> {
    // Wraps: Path::new(path).parent()
    None
}

// Convert to absolute path
fn canonicalize(path: string) -> Result<string, string> {
    // Wraps: std::fs::canonicalize(path)
    Err("Path operation failed")
}

// Check if path is absolute
fn is_absolute(path: string) -> bool {
    // Wraps: Path::new(path).is_absolute()
    false
}

// Check if path is relative
fn is_relative(path: string) -> bool {
    // Wraps: Path::new(path).is_relative()
    true
}

// USAGE EXAMPLES:
//
// use std::fs
//
// fn main() {
//     // Read file
//     let contents = fs.read_to_string("config.txt")?
//     println!("Contents: {}", contents)
//     
//     // Write file
//     fs.write("output.txt", "Hello, World!")?
//     
//     // Append to file
//     fs.append("log.txt", "New log entry\n")?
//     
//     // Copy file
//     fs.copy("source.txt", "dest.txt")?
//     
//     // Check existence
//     if fs.exists("data.json") {
//         println!("File exists!")
//     }
//     
//     // Create directory
//     fs.create_dir_all("path/to/dir")?
//     
//     // List directory
//     let entries = fs.read_dir(".")?
//     for entry in entries {
//         println!("{} ({})", 
//             entry.name(),
//             if entry.is_dir() { "dir" } else { "file" }
//         )
//     }
//     
//     // File metadata
//     let meta = fs.metadata("file.txt")?
//     println!("Size: {} bytes", meta.size())
//     println!("Read-only: {}", meta.is_readonly())
//     
//     // Path operations
//     let full_path = fs.join("dir", "file.txt")  // "dir/file.txt"
//     let absolute = fs.canonicalize(full_path)?
//     
//     let name = fs.file_name("/path/to/file.txt")?  // "file.txt"
//     let ext = fs.extension("file.txt")?             // "txt"
//     let stem = fs.file_stem("file.txt")?            // "file"
// }
//
// NOT THIS (std::fs exposed): ❌
// let contents = std::fs::read_to_string("file.txt")?
// std::fs::create_dir_all("path")?
//
// NOTE: All file system operations use Rust std::fs under the hood
//       No additional dependencies needed!