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"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.dataLoader = void 0;
const graphql_compose_1 = require("graphql-compose");
const helpers_1 = require("./helpers");
const beforeQueryHelper_1 = require("./helpers/beforeQueryHelper");
const dataLoaderHelper_1 = require("./helpers/dataLoaderHelper");
function dataLoader(model, tc, opts) {
if (!model || !model.modelName || !model.schema) {
throw new Error('First arg for Resolver dataLoader() should be instance of Mongoose Model.');
}
if (!tc || tc.constructor.name !== 'ObjectTypeComposer') {
throw new Error('Second arg for Resolver dataLoader() should be instance of ObjectTypeComposer.');
}
const aliases = helpers_1.prepareNestedAliases(model.schema);
const aliasesReverse = helpers_1.prepareAliasesReverse(model.schema);
return tc.schemaComposer.createResolver({
type: tc,
name: 'dataLoader',
kind: 'query',
args: {
_id: tc.hasField('_id') ? graphql_compose_1.toInputType(tc.getFieldTC('_id')).NonNull : 'MongoID!',
},
resolve: ((resolveParams) => {
const args = resolveParams.args || {};
if (!args._id) {
return Promise.resolve(null);
}
if (!resolveParams.info) {
throw new Error(`Cannot use ${tc.getTypeName()}.dataLoader resolver without 'info: GraphQLResolveInfo'`);
}
const dl = dataLoaderHelper_1.getDataLoader(resolveParams.context, resolveParams.info, (ids) => __awaiter(this, void 0, void 0, function* () {
resolveParams.query = model.find({
_id: { $in: ids },
});
resolveParams.model = model;
helpers_1.projectionHelper(resolveParams, aliases);
if (opts === null || opts === void 0 ? void 0 : opts.lean) {
const result = (yield beforeQueryHelper_1.beforeQueryHelperLean(resolveParams)) || [];
return Array.isArray(result) && aliasesReverse
? result.map((r) => helpers_1.replaceAliases(r, aliasesReverse))
: result;
}
else {
return beforeQueryHelper_1.beforeQueryHelper(resolveParams) || [];
}
}));
return dl.load(args._id);
}),
});
}
exports.dataLoader = dataLoader;
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