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//! Module exposing errors and result types for the session API.

use frame_support::sp_runtime::DispatchError;
use thiserror::Error;

/// Session specific errors.
#[derive(Error, Debug)]
pub enum SessionError {
    /// Encoding data failed.
    #[error("Encoding call data failed: {0}")]
    Encoding(String),
    /// Decoding data failed.
    #[error("Decoding call data failed: {0}")]
    Decoding(String),
    /// Crate-specific error.
    #[error("{0:?}")]
    Drink(#[from] crate::Error),
    /// Deployment has been reverted by the contract.
    #[error("Contract deployment has been reverted")]
    DeploymentReverted,
    /// Deployment failed (aborted by the pallet).
    #[error("Contract deployment failed before execution: {0:?}")]
    DeploymentFailed(DispatchError),
    /// Code upload failed (aborted by the pallet).
    #[error("Code upload failed: {0:?}")]
    UploadFailed(DispatchError),
    /// Call has been reverted by the contract.
    #[error("Contract call has been reverted")]
    CallReverted,
    /// Contract call failed (aborted by the pallet).
    #[error("Contract call failed before execution: {0:?}")]
    CallFailed(DispatchError),
    /// There is no deployed contract to call.
    #[error("No deployed contract")]
    NoContract,
    /// There is no registered transcoder to encode/decode messages for the called contract.
    #[error("Missing transcoder")]
    NoTranscoder,
}