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package com.devonfw.cobigen.api.exception;

import java.io.File;
import java.nio.file.Path;

/**
 * This Exception indicates a problem while merging.
 */
public class MergeException extends CobiGenRuntimeException {

  /** Generated Serial Version UID */
  private static final long serialVersionUID = 1;

  /** Message constant */
  private static final String UNABLE_TO_MERGE = "Unable to merge ";

  /** Message constant */
  private static final String A_GENERATED_PATCH = "a generated patch";

  /**
   * Creates an exception for the base file to be merged with the given message.
   *
   * @param baseFile file to be merged
   * @param msg error message
   */
  public MergeException(File baseFile, String msg) {

    super(UNABLE_TO_MERGE + A_GENERATED_PATCH + " into file " + baseFile + ": " + msg);
  }

  /**
   * Creates an exception for the base file to be merged with the given message and root cause.
   *
   * @param baseFile file to be merged
   * @param msg error message
   * @param cause root cause
   */
  public MergeException(File baseFile, String msg, Throwable cause) {

    super(UNABLE_TO_MERGE + A_GENERATED_PATCH + " into file " + baseFile + ": " + msg, cause);
  }

  /**
   * Copy constructor enriching the error message with further information about the patch.
   *
   * @param source {@link MergeException} to be used as source for copying
   * @param templatePath path to the template
   */
  public MergeException(MergeException source, Path templatePath) {

    super(source.getMessage().replace(A_GENERATED_PATCH, "the patch generated by template " + templatePath),
        source.getCause());
  }
}