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// =============================================================================
// Copyright (c) 2026 Haixing Hu.
//
// SPDX-License-Identifier: Apache-2.0
//
// Licensed under the Apache License, Version 2.0.
// =============================================================================
// facade.
//! Provider-side synchronous temporary-resource sessions.
use super::PersistRequest;
use super::SpiPersistFailure;
use crate::error::FsResult;
use crate::temp::PersistOutcome;
/// Provider temporary-resource lifecycle session.
///
/// # Examples
///
/// ```
/// use qubit_fs::spi::TempResourceSpi;
///
/// fn accepts_session<T: TempResourceSpi>() {}
/// ```
pub trait TempResourceSpi: Send {
/// Persists a temporary resource.
///
/// # Parameters
/// - `request`: Validated target and persistence requirements.
///
/// # Returns
/// The confirmed persistence outcome.
///
/// # Errors
/// Returns provider-confirmed failure and recovery state when persistence
/// does not complete successfully.
fn persist(&mut self, request: PersistRequest<'_>) -> Result<PersistOutcome, SpiPersistFailure>;
/// Publishes the temporary resource to a provider-generated target.
///
/// # Returns
/// The confirmed publication outcome.
///
/// # Errors
/// Returns the provider-confirmed failure and recovery state when
/// publication cannot be completed.
fn keep(&mut self) -> Result<PersistOutcome, SpiPersistFailure>;
/// Cleans the temporary source.
///
/// # Returns
/// `Ok(())` after cleanup is confirmed.
///
/// # Errors
/// Returns the provider cleanup failure with filesystem context.
fn cleanup(&mut self) -> FsResult<()>;
}