package eu.dnetlib.dhp.common;

import eu.dnetlib.dhp.common.FunctionalInterfaceSupport.ThrowingRunnable;
import eu.dnetlib.dhp.common.FunctionalInterfaceSupport.ThrowingSupplier;

/** Exception handling utility methods. */
public class ThrowingSupport {

    private ThrowingSupport() {}

    /**
     * Executes given runnable and rethrows any exceptions as RuntimeException.
     *
     * @param fn Runnable to be executed
     * @param <E> Type of exception thrown
     */
    public static <E extends Exception> void rethrowAsRuntimeException(ThrowingRunnable<E> fn) {
        try {
            fn.run();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * Executes given runnable and rethrows any exceptions as RuntimeException with custom message.
     *
     * @param fn Runnable to be executed
     * @param msg Message to be set for rethrown exception
     * @param <E> Type of exception thrown
     */
    public static <E extends Exception> void rethrowAsRuntimeException(
            ThrowingRunnable<E> fn, String msg) {
        try {
            fn.run();
        } catch (Exception e) {
            throw new RuntimeException(msg, e);
        }
    }

    /**
     * Executes given supplier and rethrows any exceptions as RuntimeException.
     *
     * @param fn Supplier to be executed
     * @param <T> Type of returned value
     * @param <E> Type of exception thrown
     * @return Result of supplier execution
     */
    public static <T, E extends Exception> T rethrowAsRuntimeException(ThrowingSupplier<T, E> fn) {
        try {
            return fn.get();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * Executes given supplier and rethrows any exceptions as RuntimeException with custom message.
     *
     * @param fn Supplier to be executed
     * @param msg Message to be set for rethrown exception
     * @param <T> Type of returned value
     * @param <E> Type of exception thrown
     * @return Result of supplier execution
     */
    public static <T, E extends Exception> T rethrowAsRuntimeException(
            ThrowingSupplier<T, E> fn, String msg) {
        try {
            return fn.get();
        } catch (Exception e) {
            throw new RuntimeException(msg, e);
        }
    }
}