use thiserror::Error;

/// Custom error type for the doctree library
#[derive(Error, Debug)]
pub enum DocTreeError {
    /// IO error
    #[error("IO error: {0}")]
    IoError(#[from] std::io::Error),
    
    /// WalkDir error
    #[error("WalkDir error: {0}")]
    WalkDirError(String),
    
    /// Collection not found
    #[error("Collection not found: {0}")]
    CollectionNotFound(String),
    
    /// Page not found
    #[error("Page not found: {0}")]
    PageNotFound(String),
    
    /// File not found
    #[error("File not found: {0}")]
    FileNotFound(String),
    
    /// Invalid include directive
    #[error("Invalid include directive: {0}")]
    InvalidIncludeDirective(String),
    
    /// No default collection set
    #[error("No default collection set")]
    NoDefaultCollection,
    
    /// Invalid number of arguments
    #[error("Invalid number of arguments")]
    InvalidArgumentCount,
    
    /// Missing required parameter
    #[error("Missing required parameter: {0}")]
    MissingParameter(String),
    
    /// Redis error
    #[error("Redis error: {0}")]
    RedisError(String),

    /// CSV error
    #[error("CSV error: {0}")]
    CsvError(String),

    /// IPFS error
    #[error("IPFS error: {0}")]
    IpfsError(String),

    /// Encryption error
    #[error("Encryption error: {0}")]
    EncryptionError(String),
}

/// Result type alias for doctree operations
pub type Result<T> = std::result::Result<T, DocTreeError>;