//! Structured error codes for server RPC responses.
//!
//! Every `capnp::Error::failed()` message is prefixed with a stable code
//! (E001–E020) so clients can match on the code without parsing free-text.

pub const E001_BAD_AUTH_VERSION: &str = "E001";
pub const E002_EMPTY_TOKEN: &str = "E002";
pub const E003_INVALID_TOKEN: &str = "E003";
pub const E004_IDENTITY_KEY_LENGTH: &str = "E004";
pub const E005_PAYLOAD_EMPTY: &str = "E005";
pub const E006_PAYLOAD_TOO_LARGE: &str = "E006";
pub const E007_PACKAGE_EMPTY: &str = "E007";
pub const E008_PACKAGE_TOO_LARGE: &str = "E008";
pub const E009_STORAGE_ERROR: &str = "E009";
pub const E010_OPAQUE_ERROR: &str = "E010";
pub const E011_USERNAME_EMPTY: &str = "E011";
pub const E012_WIRE_VERSION: &str = "E012";
pub const E013_HYBRID_KEY_EMPTY: &str = "E013";
pub const E014_RATE_LIMITED: &str = "E014";
pub const E015_QUEUE_FULL: &str = "E015";
pub const E016_IDENTITY_MISMATCH: &str = "E016";
pub const E017_SESSION_EXPIRED: &str = "E017";
pub const E018_USER_EXISTS: &str = "E018";
pub const E019_NO_PENDING_LOGIN: &str = "E019";
pub const E020_BAD_PARAMS: &str = "E020";
pub const E021_CIPHERSUITE_NOT_ALLOWED: &str = "E021";
pub const E022_CHANNEL_ACCESS_DENIED: &str = "E022";
pub const E023_CHANNEL_NOT_FOUND: &str = "E023";
pub const E024_BLOB_TOO_LARGE: &str = "E024";
pub const E025_BLOB_HASH_LENGTH: &str = "E025";
pub const E026_BLOB_HASH_MISMATCH: &str = "E026";
pub const E027_BLOB_NOT_FOUND: &str = "E027";

/// Build a `capnp::Error::failed()` with the structured code prefix.
pub fn coded_error(code: &str, msg: impl std::fmt::Display) -> capnp::Error {
    capnp::Error::failed(format!("{code}: {msg}"))
}