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/*
 * SonarQube Python Plugin
 * Copyright (C) 2011-2024 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 Sonar Source-Available License Version 1, as published by SonarSource SA.
 *
 * 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 Sonar Source-Available License for more details.
 *
 * You should have received a copy of the Sonar Source-Available License
 * along with this program; if not, see https://sonarsource.com/license/ssal/
 */
package org.sonar.python.checks;

import org.sonar.check.Rule;
import org.sonar.plugins.python.api.PythonSubscriptionCheck;
import org.sonar.python.api.PythonPunctuator;
import org.sonar.plugins.python.api.tree.BinaryExpression;
import org.sonar.plugins.python.api.tree.Token;
import org.sonar.plugins.python.api.tree.Tree;

@Rule(key = "InequalityUsage")
public class InequalityUsageCheck extends PythonSubscriptionCheck {

  @Override
  public void initialize(Context context) {
    context.registerSyntaxNodeConsumer(Tree.Kind.COMPARISON, ctx -> {
      BinaryExpression expr = (BinaryExpression) ctx.syntaxNode();
      Token operator = expr.operator();
      if (operator.value().equals(PythonPunctuator.NOT_EQU2.getValue())) {
        ctx.addIssue(operator, "Replace \"<>\" by \"!=\".");
      }
    });
  }
}