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package com.rapid7.armor.xact;

public class XactError extends RuntimeException {
  private static final long serialVersionUID = 887665872580865041L;
  private ArmorXact armorTransaction;
  private DistXactRecord baseline;
  private String errorMsg;
  
  public XactError(String message) {
    super(message);
    errorMsg = message;
  }

  public XactError(ArmorXact armorTransaction, DistXactRecord baseline) {
    this.armorTransaction = armorTransaction;
    this.baseline = baseline;
    
    if (baseline.getCurrent().equalsIgnoreCase(armorTransaction.getTarget()))
        errorMsg = "The baseline transaction " + baseline.getCurrent() + " equals the targeted transaction " + armorTransaction.getTarget();
    if (baseline.getPrevious() != null && baseline.getPrevious().equalsIgnoreCase(armorTransaction.getTarget()))
        errorMsg = "The baseline transaction + " + baseline.getCurrent() + " equals the previous transaction " + baseline.getPrevious();
      
    // Check the baseline MUST match current
    if (!baseline.getCurrent().equalsIgnoreCase(armorTransaction.getBaseline()))
        // Is this auto, in which case tone it down the message.
        if (baseline.getAutoCurrent()) {
          errorMsg = "The transaction " + armorTransaction.getTarget() + "at epoch " + armorTransaction.getTime() + 
                    " has a baseline transaction of " + armorTransaction.getBaseline() +  
                    ". The stored basline " + baseline.getCurrent() + " was autogenerated most likely because it is a new table." +
                    "However another process already wrote to it. This error should go away, if it persists on the same target (table, shard) then investigate.";
        } else {
          // Else legit issue
          errorMsg = "The transaction " + armorTransaction.getTarget() + "at epoch " + armorTransaction.getTime() + 
                 " has a baseline transaction of " + armorTransaction.getBaseline() +  
                 " that doesn't match the stored baseline of " + baseline.getCurrent() +
                 ", another process already has written to it, verify locking is correct";
        }
  }

  public ArmorXact getArmorXact() {
      return armorTransaction;
  }
  
  public DistXactRecord getBaseline() {
      return baseline;
  }

  @Override
  public String getMessage() {
      return errorMsg;      
  }
}