'use strict';var _docsUrl = require('../docsUrl');var _docsUrl2 = _interopRequireDefault(_docsUrl);function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { default: obj };}

function getImportValue(node) {
  return node.type === 'ImportDeclaration' ?
  node.source.value :
  node.moduleReference.expression.value;
}

module.exports = {
  meta: {
    type: 'suggestion',
    docs: {
      url: (0, _docsUrl2.default)('first') },

    fixable: 'code',
    schema: [
    {
      type: 'string',
      enum: ['absolute-first', 'disable-absolute-first'] }] },




  create: function (context) {
    function isPossibleDirective(node) {
      return node.type === 'ExpressionStatement' &&
      node.expression.type === 'Literal' &&
      typeof node.expression.value === 'string';
    }

    return {
      'Program': function (n) {
        const body = n.body;
        const absoluteFirst = context.options[0] === 'absolute-first';
        const message = 'Import in body of module; reorder to top.';
        const sourceCode = context.getSourceCode();
        const originSourceCode = sourceCode.getText();
        let nonImportCount = 0;
        let anyExpressions = false;
        let anyRelative = false;
        let lastLegalImp = null;
        const errorInfos = [];
        let shouldSort = true;
        let lastSortNodesIndex = 0;
        body.forEach(function (node, index) {
          if (!anyExpressions && isPossibleDirective(node)) {
            return;
          }

          anyExpressions = true;

          if (node.type === 'ImportDeclaration' || node.type === 'TSImportEqualsDeclaration') {
            if (absoluteFirst) {
              if (/^\./.test(getImportValue(node))) {
                anyRelative = true;
              } else if (anyRelative) {
                context.report({
                  node: node.type === 'ImportDeclaration' ? node.source : node.moduleReference,
                  message: 'Absolute imports should come before relative imports.' });

              }
            }
            if (nonImportCount > 0) {
              for (const variable of context.getDeclaredVariables(node)) {
                if (!shouldSort) break;
                const references = variable.references;
                if (references.length) {
                  for (const reference of references) {
                    if (reference.identifier.range[0] < node.range[1]) {
                      shouldSort = false;
                      break;
                    }
                  }
                }
              }
              shouldSort && (lastSortNodesIndex = errorInfos.length);
              errorInfos.push({
                node,
                range: [body[index - 1].range[1], node.range[1]] });

            } else {
              lastLegalImp = node;
            }
          } else {
            nonImportCount++;
          }
        });
        if (!errorInfos.length) return;
        errorInfos.forEach(function (errorInfo, index) {
          const node = errorInfo.node;
          const infos = {
            node,
            message };

          if (index < lastSortNodesIndex) {
            infos.fix = function (fixer) {
              return fixer.insertTextAfter(node, '');
            };
          } else if (index === lastSortNodesIndex) {
            const sortNodes = errorInfos.slice(0, lastSortNodesIndex + 1);
            infos.fix = function (fixer) {
              const removeFixers = sortNodes.map(function (_errorInfo) {
                return fixer.removeRange(_errorInfo.range);
              });
              const range = [0, removeFixers[removeFixers.length - 1].range[1]];
              let insertSourceCode = sortNodes.map(function (_errorInfo) {
                const nodeSourceCode = String.prototype.slice.apply(
                originSourceCode, _errorInfo.range);

                if (/\S/.test(nodeSourceCode[0])) {
                  return '\n' + nodeSourceCode;
                }
                return nodeSourceCode;
              }).join('');
              let insertFixer = null;
              let replaceSourceCode = '';
              if (!lastLegalImp) {
                insertSourceCode =
                insertSourceCode.trim() + insertSourceCode.match(/^(\s+)/)[0];
              }
              insertFixer = lastLegalImp ?
              fixer.insertTextAfter(lastLegalImp, insertSourceCode) :
              fixer.insertTextBefore(body[0], insertSourceCode);
              const fixers = [insertFixer].concat(removeFixers);
              fixers.forEach(function (computedFixer, i) {
                replaceSourceCode += originSourceCode.slice(
                fixers[i - 1] ? fixers[i - 1].range[1] : 0, computedFixer.range[0]) +
                computedFixer.text;
              });
              return fixer.replaceTextRange(range, replaceSourceCode);
            };
          }
          context.report(infos);
        });
      } };

  } };
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node.source.value\n    : node.moduleReference.expression.value;\n}\n\nmodule.exports = {\n  meta: {\n    type: 'suggestion',\n    docs: {\n      url: docsUrl('first'),\n    },\n    fixable: 'code',\n    schema: [\n      {\n        type: 'string',\n        enum: ['absolute-first', 'disable-absolute-first'],\n      },\n    ],\n  },\n\n  create: function (context) {\n    function isPossibleDirective (node) {\n      return node.type === 'ExpressionStatement' &&\n        node.expression.type === 'Literal' &&\n        typeof node.expression.value === 'string';\n    }\n\n    return {\n      'Program': function (n) {\n        const body = n.body;\n        const absoluteFirst = context.options[0] === 'absolute-first';\n        const message = 'Import in body of module; reorder to top.';\n        const sourceCode = context.getSourceCode();\n        const originSourceCode = sourceCode.getText();\n        let nonImportCount = 0;\n        let anyExpressions = false;\n        let anyRelative = false;\n        let lastLegalImp = null;\n        const errorInfos = [];\n        let shouldSort = true;\n        let lastSortNodesIndex = 0;\n        body.forEach(function (node, index){\n          if (!anyExpressions && isPossibleDirective(node)) {\n            return;\n          }\n\n          anyExpressions = true;\n\n          if (node.type === 'ImportDeclaration' || node.type === 'TSImportEqualsDeclaration') {\n            if (absoluteFirst) {\n              if (/^\\./.test(getImportValue(node))) {\n                anyRelative = true;\n              } else if (anyRelative) {\n                context.report({\n                  node: node.type === 'ImportDeclaration' ? node.source : node.moduleReference,\n                  message: 'Absolute imports should come before relative imports.',\n                });\n              }\n            }\n            if (nonImportCount > 0) {\n              for (const variable of context.getDeclaredVariables(node)) {\n                if (!shouldSort) break;\n                const references = variable.references;\n                if (references.length) {\n                  for (const reference of references) {\n                    if (reference.identifier.range[0] < node.range[1]) {\n                      shouldSort = false;\n                      break;\n                    }\n                  }\n                }\n              }\n              shouldSort && (lastSortNodesIndex = errorInfos.length);\n              errorInfos.push({\n                node,\n                range: [body[index - 1].range[1], node.range[1]],\n              });\n            } else {\n              lastLegalImp = node;\n            }\n          } else {\n            nonImportCount++;\n          }\n        });\n        if (!errorInfos.length) return;\n        errorInfos.forEach(function (errorInfo, index) {\n          const node = errorInfo.node;\n          const infos = {\n            node,\n            message,\n          };\n          if (index < lastSortNodesIndex) {\n            infos.fix = function (fixer) {\n              return fixer.insertTextAfter(node, '');\n            };\n          } else if (index === lastSortNodesIndex) {\n            const sortNodes = errorInfos.slice(0, lastSortNodesIndex + 1);\n            infos.fix = function (fixer) {\n              const removeFixers = sortNodes.map(function (_errorInfo) {\n                return fixer.removeRange(_errorInfo.range);\n              });\n              const range = [0, removeFixers[removeFixers.length - 1].range[1]];\n              let insertSourceCode = sortNodes.map(function (_errorInfo) {\n                const nodeSourceCode = String.prototype.slice.apply(\n                  originSourceCode, _errorInfo.range\n                );\n                if (/\\S/.test(nodeSourceCode[0])) {\n                  return '\\n' + nodeSourceCode;\n                }\n                return nodeSourceCode;\n              }).join('');\n              let insertFixer = null;\n              let replaceSourceCode = '';\n              if (!lastLegalImp) {\n                insertSourceCode =\n                    insertSourceCode.trim() + insertSourceCode.match(/^(\\s+)/)[0];\n              }\n              insertFixer = lastLegalImp ?\n                fixer.insertTextAfter(lastLegalImp, insertSourceCode) :\n                fixer.insertTextBefore(body[0], insertSourceCode);\n              const fixers = [insertFixer].concat(removeFixers);\n              fixers.forEach(function (computedFixer, i) {\n                replaceSourceCode += (originSourceCode.slice(\n                  fixers[i - 1] ? fixers[i - 1].range[1] : 0, computedFixer.range[0]\n                ) + computedFixer.text);\n              });\n              return fixer.replaceTextRange(range, replaceSourceCode);\n            };\n          }\n          context.report(infos);\n        });\n      },\n    };\n  },\n};\n"]}