import devAssert from "../jsutils/devAssert.mjs";
import { Kind } from "../language/kinds.mjs";
import { parse } from "../language/parser.mjs";
import { assertValidSDL } from "../validation/validate.mjs";
import { GraphQLSchema } from "../type/schema.mjs";
import { specifiedDirectives } from "../type/directives.mjs";
import { extendSchemaImpl } from "./extendSchema.mjs";

/**
 * This takes the ast of a schema document produced by the parse function in
 * src/language/parser.js.
 *
 * If no schema definition is provided, then it will look for types named Query
 * and Mutation.
 *
 * Given that AST it constructs a GraphQLSchema. The resulting schema
 * has no resolve methods, so execution will use default resolvers.
 *
 * Accepts options as a second argument:
 *
 *    - commentDescriptions:
 *        Provide true to use preceding comments as the description.
 *
 */
export function buildASTSchema(documentAST, options) {
  documentAST != null && documentAST.kind === Kind.DOCUMENT || devAssert(0, 'Must provide valid Document AST.');

  if ((options === null || options === void 0 ? void 0 : options.assumeValid) !== true && (options === null || options === void 0 ? void 0 : options.assumeValidSDL) !== true) {
    assertValidSDL(documentAST);
  }

  var emptySchemaConfig = {
    description: undefined,
    types: [],
    directives: [],
    extensions: undefined,
    extensionASTNodes: [],
    assumeValid: false
  };
  var config = extendSchemaImpl(emptySchemaConfig, documentAST, options);

  if (config.astNode == null) {
    for (var _i2 = 0, _config$types2 = config.types; _i2 < _config$types2.length; _i2++) {
      var type = _config$types2[_i2];

      switch (type.name) {
        // Note: While this could make early assertions to get the correctly
        // typed values below, that would throw immediately while type system
        // validation with validateSchema() will produce more actionable results.
        case 'Query':
          config.query = type;
          break;

        case 'Mutation':
          config.mutation = type;
          break;

        case 'Subscription':
          config.subscription = type;
          break;
      }
    }
  }

  var directives = config.directives; // If specified directives were not explicitly declared, add them.

  var _loop = function _loop(_i4) {
    var stdDirective = specifiedDirectives[_i4];

    if (directives.every(function (directive) {
      return directive.name !== stdDirective.name;
    })) {
      directives.push(stdDirective);
    }
  };

  for (var _i4 = 0; _i4 < specifiedDirectives.length; _i4++) {
    _loop(_i4);
  }

  return new GraphQLSchema(config);
}
/**
 * A helper function to build a GraphQLSchema directly from a source
 * document.
 */

export function buildSchema(source, options) {
  var document = parse(source, {
    noLocation: options === null || options === void 0 ? void 0 : options.noLocation,
    allowLegacySDLEmptyFields: options === null || options === void 0 ? void 0 : options.allowLegacySDLEmptyFields,
    allowLegacySDLImplementsInterfaces: options === null || options === void 0 ? void 0 : options.allowLegacySDLImplementsInterfaces,
    experimentalFragmentVariables: options === null || options === void 0 ? void 0 : options.experimentalFragmentVariables
  });
  return buildASTSchema(document, {
    commentDescriptions: options === null || options === void 0 ? void 0 : options.commentDescriptions,
    assumeValidSDL: options === null || options === void 0 ? void 0 : options.assumeValidSDL,
    assumeValid: options === null || options === void 0 ? void 0 : options.assumeValid
  });
}