use valve_pak::{VPK, Result};

fn main() -> Result<()> {
    // Open an existing VPK file
    let vpk = VPK::open("game_assets.vpk")?;
    
    // List all files
    for file_path in vpk.file_paths() {
        println!("{}", file_path);
    }
    
    // Get a specific file
    let mut file = vpk.get_file("scripts/game.txt")?;
    
    // Read file content
    let content = file.read_all_string()?;
    println!("File content: {}", content);
    
    // Save file to disk
    file.save("extracted_game.txt")?;
    
    Ok(())
}

use valve_pak::{VPK, Result};

fn main() -> Result<()> {
    // Create VPK from directory
    let vpk = VPK::from_directory("my_mod/")?;
    
    // Save to file
    vpk.save("my_mod.vpk")?;
    
    println!("Packed {} files", vpk.file_count());
    Ok(())
}

use valve_pak::{VPK, Result};
use std::io::{Read, Seek, SeekFrom};

fn main() -> Result<()> {
    let vpk = VPK::open("game_assets.vpk")?;
    let mut file = vpk.get_file("textures/logo.png")?;
    
    // VPKFile implements Read and Seek traits
    let mut buffer = [0u8; 1024];
    let bytes_read = file.read(&mut buffer)?;
    
    // Seek to position
    file.seek(SeekFrom::Start(100))?;
    
    // Verify file integrity
    if file.verify()? {
        println!("File checksum is valid");
    }
    
    Ok(())
}

use valve_pak::{VPK, Result};

fn main() -> Result<()> {
    match VPK::open("nonexistent.vpk") {
        Ok(vpk) => {
            println!("Opened VPK with {} files", vpk.file_count());
        }
        Err(e) => {
            eprintln!("Failed to open VPK: {}", e);
            // Error context is preserved through the chain
            for cause in e.chain() {
                eprintln!("  Caused by: {}", cause);
            }
        }
    }
    Ok(())
}