/**
   * @fileoverview Rule to flag no-unneeded-ternary
   * @author Gyandeep Singh
   * @copyright 2015 Gyandeep Singh. All rights reserved.
   * @copyright 2015 Michael Ficarra. All rights reserved.
   */
  
  "use strict";
  
  //------------------------------------------------------------------------------
  // Rule Definition
  //------------------------------------------------------------------------------
  
  module.exports = function(context) {
      var options = context.options[0] || {};
      var defaultAssignment = options.defaultAssignment !== false;
  
      /**
       * Test if the node is a boolean literal
       * @param {ASTNode} node - The node to report.
       * @returns {boolean} True if the its a boolean literal
       * @private
       */
      function isBooleanLiteral(node) {
          return node.type === "Literal" && typeof node.value === "boolean";
      }
  
      /**
       * Test if the node matches the pattern id ? id : expression
       * @param {ASTNode} node - The ConditionalExpression to check.
       * @returns {boolean} True if the pattern is matched, and false otherwise
       * @private
       */
      function matchesDefaultAssignment(node) {
          return node.test.type === "Identifier" &&
                 node.consequent.type === "Identifier" &&
                 node.test.name === node.consequent.name;
      }
  
      return {
  
          "ConditionalExpression": function(node) {
              if (isBooleanLiteral(node.alternate) && isBooleanLiteral(node.consequent)) {
                  context.report(node, node.consequent.loc.start, "Unnecessary use of boolean literals in conditional expression");
              } else if (!defaultAssignment && matchesDefaultAssignment(node)) {
                  context.report(node, node.consequent.loc.start, "Unnecessary use of conditional expression for default assignment");
              }
          }
      };
  };
  
  module.exports.schema = [
      {
          "type": "object",
          "properties": {
              "defaultAssignment": {
                  "type": "boolean"
              }
          },
          "additionalProperties": false
      }
  ];