'use strict';

var _docsUrl = require('../docsUrl');

var _docsUrl2 = _interopRequireDefault(_docsUrl);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

const EXPORT_MESSAGE = 'Expected "export" or "export default"',
      IMPORT_MESSAGE = 'Expected "import" instead of "require()"'; /**
                                                                    * @fileoverview Rule to prefer ES6 to CJS
                                                                    * @author Jamund Ferguson
                                                                    */

function normalizeLegacyOptions(options) {
  if (options.indexOf('allow-primitive-modules') >= 0) {
    return { allowPrimitiveModules: true };
  }
  return options[0] || {};
}

function allowPrimitive(node, options) {
  if (!options.allowPrimitiveModules) return false;
  if (node.parent.type !== 'AssignmentExpression') return false;
  return node.parent.right.type !== 'ObjectExpression';
}

function allowRequire(node, options) {
  return options.allowRequire;
}

//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------

const schemaString = { enum: ['allow-primitive-modules'] };
const schemaObject = {
  type: 'object',
  properties: {
    allowPrimitiveModules: { 'type': 'boolean' },
    allowRequire: { 'type': 'boolean' }
  },
  additionalProperties: false
};

module.exports = {
  meta: {
    type: 'suggestion',
    docs: {
      url: (0, _docsUrl2.default)('no-commonjs')
    },

    schema: {
      anyOf: [{
        type: 'array',
        items: [schemaString],
        additionalItems: false
      }, {
        type: 'array',
        items: [schemaObject],
        additionalItems: false
      }]
    }
  },

  create: function (context) {
    const options = normalizeLegacyOptions(context.options);

    return {

      'MemberExpression': function (node) {

        // module.exports
        if (node.object.name === 'module' && node.property.name === 'exports') {
          if (allowPrimitive(node, options)) return;
          context.report({ node, message: EXPORT_MESSAGE });
        }

        // exports.
        if (node.object.name === 'exports') {
          const isInScope = context.getScope().variables.some(variable => variable.name === 'exports');
          if (!isInScope) {
            context.report({ node, message: EXPORT_MESSAGE });
          }
        }
      },
      'CallExpression': function (call) {
        if (context.getScope().type !== 'module') return;
        if (call.parent.type !== 'ExpressionStatement' && call.parent.type !== 'VariableDeclarator' && call.parent.type !== 'AssignmentExpression') return;

        if (call.callee.type !== 'Identifier') return;
        if (call.callee.name !== 'require') return;

        if (call.arguments.length !== 1) return;
        var module = call.arguments[0];

        if (module.type !== 'Literal') return;
        if (typeof module.value !== 'string') return;

        if (allowRequire(call, options)) return;

        // keeping it simple: all 1-string-arg `require` calls are reported
        context.report({
          node: call.callee,
          message: IMPORT_MESSAGE
        });
      }
    };
  }
};
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"sources":["../../src/rules/no-commonjs.js"],"names":["EXPORT_MESSAGE","IMPORT_MESSAGE","normalizeLegacyOptions","options","indexOf","allowPrimitiveModules","allowPrimitive","node","parent","type","right","allowRequire","schemaString","enum","schemaObject","properties","additionalProperties","module","exports","meta","docs","url","schema","anyOf","items","additionalItems","create","context","object","name","property","report","message","isInScope","getScope","variables","some","variable","call","callee","arguments","length","value"],"mappings":";;AAKA;;;;;;AAEA,MAAMA,iBAAiB,uCAAvB;AAAA,MACMC,iBAAiB,0CADvB,C,CAPA;;;;;AAUA,SAASC,sBAAT,CAAgCC,OAAhC,EAAyC;AACvC,MAAIA,QAAQC,OAAR,CAAgB,yBAAhB,KAA8C,CAAlD,EAAqD;AACnD,WAAO,EAAEC,uBAAuB,IAAzB,EAAP;AACD;AACD,SAAOF,QAAQ,CAAR,KAAc,EAArB;AACD;;AAED,SAASG,cAAT,CAAwBC,IAAxB,EAA8BJ,OAA9B,EAAuC;AACrC,MAAI,CAACA,QAAQE,qBAAb,EAAoC,OAAO,KAAP;AACpC,MAAIE,KAAKC,MAAL,CAAYC,IAAZ,KAAqB,sBAAzB,EAAiD,OAAO,KAAP;AACjD,SAAQF,KAAKC,MAAL,CAAYE,KAAZ,CAAkBD,IAAlB,KAA2B,kBAAnC;AACD;;AAED,SAASE,YAAT,CAAsBJ,IAAtB,EAA4BJ,OAA5B,EAAqC;AACnC,SAAOA,QAAQQ,YAAf;AACD;;AAED;AACA;AACA;;AAEA,MAAMC,eAAe,EAAEC,MAAM,CAAC,yBAAD,CAAR,EAArB;AACA,MAAMC,eAAe;AACnBL,QAAM,QADa;AAEnBM,cAAY;AACVV,2BAAuB,EAAE,QAAQ,SAAV,EADb;AAEVM,kBAAc,EAAE,QAAQ,SAAV;AAFJ,GAFO;AAMnBK,wBAAsB;AANH,CAArB;;AASAC,OAAOC,OAAP,GAAiB;AACfC,QAAM;AACJV,UAAM,YADF;AAEJW,UAAM;AACJC,WAAK,uBAAQ,aAAR;AADD,KAFF;;AAMJC,YAAQ;AACNC,aAAO,CACL;AACEd,cAAM,OADR;AAEEe,eAAO,CAACZ,YAAD,CAFT;AAGEa,yBAAiB;AAHnB,OADK,EAML;AACEhB,cAAM,OADR;AAEEe,eAAO,CAACV,YAAD,CAFT;AAGEW,yBAAiB;AAHnB,OANK;AADD;AANJ,GADS;;AAuBfC,UAAQ,UAAUC,OAAV,EAAmB;AACzB,UAAMxB,UAAUD,uBAAuByB,QAAQxB,OAA/B,CAAhB;;AAEA,WAAO;;AAEL,0BAAoB,UAAUI,IAAV,EAAgB;;AAElC;AACA,YAAIA,KAAKqB,MAAL,CAAYC,IAAZ,KAAqB,QAArB,IAAiCtB,KAAKuB,QAAL,CAAcD,IAAd,KAAuB,SAA5D,EAAuE;AACrE,cAAIvB,eAAeC,IAAf,EAAqBJ,OAArB,CAAJ,EAAmC;AACnCwB,kBAAQI,MAAR,CAAe,EAAExB,IAAF,EAAQyB,SAAShC,cAAjB,EAAf;AACD;;AAED;AACA,YAAIO,KAAKqB,MAAL,CAAYC,IAAZ,KAAqB,SAAzB,EAAoC;AAClC,gBAAMI,YAAYN,QAAQO,QAAR,GACfC,SADe,CAEfC,IAFe,CAEVC,YAAYA,SAASR,IAAT,KAAkB,SAFpB,CAAlB;AAGA,cAAI,CAAEI,SAAN,EAAiB;AACfN,oBAAQI,MAAR,CAAe,EAAExB,IAAF,EAAQyB,SAAShC,cAAjB,EAAf;AACD;AACF;AAEF,OApBI;AAqBL,wBAAkB,UAAUsC,IAAV,EAAgB;AAChC,YAAIX,QAAQO,QAAR,GAAmBzB,IAAnB,KAA4B,QAAhC,EAA0C;AAC1C,YACE6B,KAAK9B,MAAL,CAAYC,IAAZ,KAAqB,qBAArB,IACG6B,KAAK9B,MAAL,CAAYC,IAAZ,KAAqB,oBADxB,IAEG6B,KAAK9B,MAAL,CAAYC,IAAZ,KAAqB,sBAH1B,EAIE;;AAEF,YAAI6B,KAAKC,MAAL,CAAY9B,IAAZ,KAAqB,YAAzB,EAAuC;AACvC,YAAI6B,KAAKC,MAAL,CAAYV,IAAZ,KAAqB,SAAzB,EAAoC;;AAEpC,YAAIS,KAAKE,SAAL,CAAeC,MAAf,KAA0B,CAA9B,EAAiC;AACjC,YAAIxB,SAASqB,KAAKE,SAAL,CAAe,CAAf,CAAb;;AAEA,YAAIvB,OAAOR,IAAP,KAAgB,SAApB,EAA+B;AAC/B,YAAI,OAAOQ,OAAOyB,KAAd,KAAwB,QAA5B,EAAsC;;AAEtC,YAAI/B,aAAa2B,IAAb,EAAmBnC,OAAnB,CAAJ,EAAiC;;AAEjC;AACAwB,gBAAQI,MAAR,CAAe;AACbxB,gBAAM+B,KAAKC,MADE;AAEbP,mBAAS/B;AAFI,SAAf;AAID;AA7CI,KAAP;AAgDD;AA1Ec,CAAjB","file":"no-commonjs.js","sourcesContent":["/**\n * @fileoverview Rule to prefer ES6 to CJS\n * @author Jamund Ferguson\n */\n\nimport docsUrl from '../docsUrl'\n\nconst EXPORT_MESSAGE = 'Expected \"export\" or \"export default\"'\n    , IMPORT_MESSAGE = 'Expected \"import\" instead of \"require()\"'\n\nfunction normalizeLegacyOptions(options) {\n  if (options.indexOf('allow-primitive-modules') >= 0) {\n    return { allowPrimitiveModules: true }\n  }\n  return options[0] || {}\n}\n\nfunction allowPrimitive(node, options) {\n  if (!options.allowPrimitiveModules) return false\n  if (node.parent.type !== 'AssignmentExpression') return false\n  return (node.parent.right.type !== 'ObjectExpression')\n}\n\nfunction allowRequire(node, options) {\n  return options.allowRequire\n}\n\n//------------------------------------------------------------------------------\n// Rule Definition\n//------------------------------------------------------------------------------\n\nconst schemaString = { enum: ['allow-primitive-modules'] }\nconst schemaObject = {\n  type: 'object',\n  properties: {\n    allowPrimitiveModules: { 'type': 'boolean' },\n    allowRequire: { 'type': 'boolean' },\n  },\n  additionalProperties: false,\n}\n\nmodule.exports = {\n  meta: {\n    type: 'suggestion',\n    docs: {\n      url: docsUrl('no-commonjs'),\n    },\n\n    schema: {\n      anyOf: [\n        {\n          type: 'array',\n          items: [schemaString],\n          additionalItems: false,\n        },\n        {\n          type: 'array',\n          items: [schemaObject],\n          additionalItems: false,\n        },\n      ],\n    },\n  },\n\n  create: function (context) {\n    const options = normalizeLegacyOptions(context.options)\n\n    return {\n\n      'MemberExpression': function (node) {\n\n        // module.exports\n        if (node.object.name === 'module' && node.property.name === 'exports') {\n          if (allowPrimitive(node, options)) return\n          context.report({ node, message: EXPORT_MESSAGE })\n        }\n\n        // exports.\n        if (node.object.name === 'exports') {\n          const isInScope = context.getScope()\n            .variables\n            .some(variable => variable.name === 'exports')\n          if (! isInScope) {\n            context.report({ node, message: EXPORT_MESSAGE })\n          }\n        }\n\n      },\n      'CallExpression': function (call) {\n        if (context.getScope().type !== 'module') return\n        if (\n          call.parent.type !== 'ExpressionStatement'\n          && call.parent.type !== 'VariableDeclarator'\n          && call.parent.type !== 'AssignmentExpression'\n        ) return\n\n        if (call.callee.type !== 'Identifier') return\n        if (call.callee.name !== 'require') return\n\n        if (call.arguments.length !== 1) return\n        var module = call.arguments[0]\n\n        if (module.type !== 'Literal') return\n        if (typeof module.value !== 'string') return\n\n        if (allowRequire(call, options)) return\n\n        // keeping it simple: all 1-string-arg `require` calls are reported\n        context.report({\n          node: call.callee,\n          message: IMPORT_MESSAGE,\n        })\n      },\n    }\n\n  },\n}\n"]}