/*******************************************************************************
 *
 *    Copyright (c) 2025 - 2026 Haixing Hu.
 *
 *    SPDX-License-Identifier: Apache-2.0
 *
 *    Licensed under the Apache License, Version 2.0.
 *
 ******************************************************************************/
// qubit-style: allow explicit-imports
#[cfg(test)]
mod tests {
    use std::{
        io,
        panic::{
            AssertUnwindSafe,
            catch_unwind,
        },
    };

    use qubit_dcl::{
        DoubleCheckedLockExecutor,
        double_checked::{
            ExecutionResult,
            ExecutorError,
        },
    };
    use qubit_lock::ArcMutex;

    mod test_executor_builder {
        use super::*;

        #[test]
        fn test_logger_can_be_configured_in_each_builder_state() {
            let data = ArcMutex::new(1);
            let executor = DoubleCheckedLockExecutor::builder()
                .log_unmet_condition(log::Level::Info, "initial")
                .on(data)
                .log_unmet_condition(log::Level::Debug, "locked")
                .when(|| true)
                .log_unmet_condition(log::Level::Warn, "ready")
                .build();

            let result = executor
                .call_with(|value: &mut i32| Ok::<i32, std::io::Error>(*value))
                .get_result();

            assert!(matches!(result, ExecutionResult::Success(1)));
        }

        #[test]
        fn test_prepare_logger_methods_on_initial_builder_are_chainable() {
            let data = ArcMutex::new(1);
            let executor = DoubleCheckedLockExecutor::builder()
                .log_prepare_failure(log::Level::Warn, "prepare failed")
                .log_prepare_commit_failure(log::Level::Error, "prepare commit failed")
                .log_prepare_rollback_failure(log::Level::Info, "prepare rollback failed")
                .disable_unmet_condition_logging()
                .disable_prepare_failure_logging()
                .disable_prepare_commit_failure_logging()
                .disable_prepare_rollback_failure_logging()
                .on(data)
                .when(|| true)
                .build();

            let result = executor
                .call_with(|value: &mut i32| Ok::<i32, std::io::Error>(*value))
                .get_result();

            assert!(matches!(result, ExecutionResult::Success(1)));
        }

        #[test]
        fn test_builder_catches_panics_when_enabled() {
            let data = ArcMutex::new(1);
            let executor = DoubleCheckedLockExecutor::builder()
                .catch_panics()
                .on(data)
                .when(|| true)
                .build();

            let result = executor
                .execute(|| -> Result<(), std::io::Error> {
                    panic!("task panic");
                })
                .get_result();

            assert!(matches!(
                result,
                ExecutionResult::Failed(ExecutorError::Panic(_))
            ));
        }

        #[test]
        fn test_builder_set_catch_panics_enables_panic_capture() {
            let data = ArcMutex::new(1);
            let executor = DoubleCheckedLockExecutor::builder()
                .set_catch_panics(true)
                .on(data)
                .when(|| true)
                .build();

            let result = executor
                .call::<fn() -> Result<(), io::Error>, (), io::Error>(|| {
                    panic!("panic from configured builder");
                })
                .get_result();

            assert!(matches!(
                result,
                ExecutionResult::Failed(ExecutorError::Panic(_))
            ));
        }

        #[test]
        fn test_builder_disable_catch_panics_allows_panic_propagation() {
            let data = ArcMutex::new(1);
            let executor = DoubleCheckedLockExecutor::builder()
                .catch_panics()
                .disable_catch_panics()
                .on(data)
                .when(|| true)
                .build();

            let caught = catch_unwind(AssertUnwindSafe(|| {
                executor
                    .call::<fn() -> Result<(), io::Error>, (), io::Error>(|| {
                        panic!("panic should propagate");
                    })
                    .get_result();
            }));

            assert!(caught.is_err());
        }
    }
}
