'use strict';

var utils = require('../utils.js');
require('eslint-visitor-keys');
require('espree');
require('estraverse');

const messages = {
  require: "JSX element should start in a new line",
  prevent: "JSX element should not start in a new line",
  allowMultilines: "Multiline JSX elements should start in a new line"
};
function isMultilined(node) {
  return node && node.loc.start.line !== node.loc.end.line;
}
var jsxNewline = utils.createRule({
  name: "jsx-newline",
  package: "jsx",
  meta: {
    type: "layout",
    docs: {
      description: "Require or prevent a new line after jsx elements and expressions."
    },
    fixable: "code",
    messages,
    schema: [
      {
        type: "object",
        properties: {
          prevent: {
            default: false,
            type: "boolean"
          },
          allowMultilines: {
            default: false,
            type: "boolean"
          }
        },
        additionalProperties: false,
        // @ts-expect-error Missing in type definition
        if: {
          properties: {
            allowMultilines: {
              const: true
            }
          }
        },
        then: {
          properties: {
            prevent: {
              const: true
            }
          },
          required: [
            "prevent"
          ]
        }
      }
    ]
  },
  create(context) {
    const jsxElementParents = /* @__PURE__ */ new Set();
    const sourceCode = context.sourceCode;
    function isBlockCommentInCurlyBraces(element) {
      const elementRawValue = sourceCode.getText(element);
      return /^\s*\{\/\*/.test(elementRawValue);
    }
    function isNonBlockComment(element) {
      return !isBlockCommentInCurlyBraces(element) && (element.type === "JSXElement" || element.type === "JSXExpressionContainer");
    }
    return {
      "Program:exit": function() {
        jsxElementParents.forEach((parent) => {
          parent.children.forEach((element, index, elements) => {
            if (element.type === "JSXElement" || element.type === "JSXExpressionContainer") {
              const configuration = context.options[0] || {};
              const prevent = configuration.prevent || false;
              const allowMultilines = configuration.allowMultilines || false;
              const firstAdjacentSibling = elements[index + 1];
              const secondAdjacentSibling = elements[index + 2];
              const hasSibling = firstAdjacentSibling && secondAdjacentSibling && (firstAdjacentSibling.type === "Literal" || firstAdjacentSibling.type === "JSXText");
              if (!hasSibling)
                return;
              const isWithoutNewLine = !/\n\s*\n/.test(firstAdjacentSibling.value);
              if (isBlockCommentInCurlyBraces(element))
                return;
              if (allowMultilines && (isMultilined(element) || isMultilined(elements.slice(index + 2).find(isNonBlockComment)))) {
                if (!isWithoutNewLine)
                  return;
                const regex2 = /(\n)(?!.*\1)/g;
                const replacement2 = "\n\n";
                const messageId2 = "allowMultilines";
                context.report({
                  messageId: messageId2,
                  node: secondAdjacentSibling,
                  fix(fixer) {
                    return fixer.replaceText(
                      firstAdjacentSibling,
                      sourceCode.getText(firstAdjacentSibling).replace(regex2, replacement2)
                    );
                  }
                });
                return;
              }
              if (isWithoutNewLine === prevent)
                return;
              const messageId = prevent ? "prevent" : "require";
              const regex = prevent ? /(\n\n)(?!.*\1)/g : /(\n)(?!.*\1)/g;
              const replacement = prevent ? "\n" : "\n\n";
              context.report({
                messageId,
                node: secondAdjacentSibling,
                fix(fixer) {
                  return fixer.replaceText(
                    firstAdjacentSibling,
                    // double or remove the last newline
                    sourceCode.getText(firstAdjacentSibling).replace(regex, replacement)
                  );
                }
              });
            }
          });
        });
      },
      ":matches(JSXElement, JSXFragment) > :matches(JSXElement, JSXExpressionContainer)": (node) => {
        jsxElementParents.add(node.parent);
      }
    };
  }
});

module.exports = jsxNewline;