text: /**
   * @fileoverview A rule to set the maximum number of statements in a function.
   * @author Ian Christian Myers
   */
  
  "use strict";
  
  //------------------------------------------------------------------------------
  // Requirements
  //------------------------------------------------------------------------------
  
  const lodash = require("lodash");
  
  const astUtils = require("../util/ast-utils");
  
  //------------------------------------------------------------------------------
  // Rule Definition
  //------------------------------------------------------------------------------
  
  module.exports = {
      meta: {
          type: "suggestion",
  
          docs: {
              description: "enforce a maximum number of statements allowed in function blocks",
              category: "Stylistic Issues",
              recommended: false,
              url: "https://eslint.org/docs/rules/max-statements"
          },
  
          schema: [
              {
                  oneOf: [
                      {
                          type: "integer",
                          minimum: 0
                      },
                      {
                          type: "object",
                          properties: {
                              maximum: {
                                  type: "integer",
                                  minimum: 0
                              },
                              max: {
                                  type: "integer",
                                  minimum: 0
                              }
                          },
                          additionalProperties: false
                      }
                  ]
              },
              {
                  type: "object",
                  properties: {
                      ignoreTopLevelFunctions: {
                          type: "boolean"
                      }
                  },
                  additionalProperties: false
              }
          ]
      },
  
      create(context) {
  
          //--------------------------------------------------------------------------
          // Helpers
          //--------------------------------------------------------------------------
  
          const functionStack = [],
              option = context.options[0],
              ignoreTopLevelFunctions = context.options[1] && context.options[1].ignoreTopLevelFunctions || false,
              topLevelFunctions = [];
          let maxStatements = 10;
  
          if (typeof option === "object" && Object.prototype.hasOwnProperty.call(option, "maximum") && typeof option.maximum === "number") {
              maxStatements = option.maximum;
          }
          if (typeof option === "object" && Object.prototype.hasOwnProperty.call(option, "max") && typeof option.max === "number") {
              maxStatements = option.max;
          }
          if (typeof option === "number") {
              maxStatements = option;
          }
  
          /**
           * Reports a node if it has too many statements
           * @param {ASTNode} node node to evaluate
           * @param {int} count Number of statements in node
           * @param {int} max Maximum number of statements allowed
           * @returns {void}
           * @private
           */
          function reportIfTooManyStatements(node, count, max) {
              if (count > max) {
                  const name = lodash.upperFirst(astUtils.getFunctionNameWithKind(node));
  
                  context.report({
                      node,
                      message: "{{name}} has too many statements ({{count}}). Maximum allowed is {{max}}.",
                      data: { name, count, max }
                  });
              }
          }
  
          /**
           * When parsing a new function, store it in our function stack
           * @returns {void}
           * @private
           */
          function startFunction() {
              functionStack.push(0);
          }
  
          /**
           * Evaluate the node at the end of function
           * @param {ASTNode} node node to evaluate
           * @returns {void}
           * @private
           */
          function endFunction(node) {
              const count = functionStack.pop();
  
              if (ignoreTopLevelFunctions && functionStack.length === 0) {
                  topLevelFunctions.push({ node, count });
              } else {
                  reportIfTooManyStatements(node, count, maxStatements);
              }
          }
  
          /**
           * Increment the count of the functions
           * @param {ASTNode} node node to evaluate
           * @returns {void}
           * @private
           */
          function countStatements(node) {
              functionStack[functionStack.length - 1] += node.body.length;
          }
  
          //--------------------------------------------------------------------------
          // Public API
          //--------------------------------------------------------------------------
  
          return {
              FunctionDeclaration: startFunction,
              FunctionExpression: startFunction,
              ArrowFunctionExpression: startFunction,
  
              BlockStatement: countStatements,
  
              "FunctionDeclaration:exit": endFunction,
              "FunctionExpression:exit": endFunction,
              "ArrowFunctionExpression:exit": endFunction,
  
              "Program:exit"() {
                  if (topLevelFunctions.length === 1) {
                      return;
                  }
  
                  topLevelFunctions.forEach(element => {
                      const count = element.count;
                      const node = element.node;
  
                      reportIfTooManyStatements(node, count, maxStatements);
                  });
              }
          };
  
      }
  };
  