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/*
 * SonarQube Python Plugin
 * Copyright (C) 2011-2018 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.python.checks;

import com.sonar.sslr.api.AstNode;
import java.text.MessageFormat;
import org.sonar.check.Rule;
import org.sonar.check.RuleProperty;
import org.sonar.python.PythonCheck;
import org.sonar.python.metrics.ComplexityVisitor;

@Rule(key = "FileComplexity")
public class FileComplexityCheck extends PythonCheck {
  private static final int DEFAULT_MAXIMUM_FILE_COMPLEXITY_THRESHOLD = 200;

  @RuleProperty(
    key = "maximumFileComplexityThreshold",
    defaultValue = "" + DEFAULT_MAXIMUM_FILE_COMPLEXITY_THRESHOLD)
  int maximumFileComplexityThreshold = DEFAULT_MAXIMUM_FILE_COMPLEXITY_THRESHOLD;

  @Override
  public void leaveFile(AstNode astNode) {
    int complexity = ComplexityVisitor.complexity(astNode);
    if (complexity > maximumFileComplexityThreshold) {
      String message = MessageFormat.format(
        "File has a complexity of {0,number,integer} which is greater than {1,number,integer} authorized.",
        complexity,
        maximumFileComplexityThreshold);
      addFileIssue(message)
        .withCost(complexity - maximumFileComplexityThreshold);
    }
  }

}