@pothos/core/lib/config-store.js

Pothos (formerly GiraphQL) is a plugin based schema builder for creating code-first GraphQL schemas in typescript

"use strict";
Object.defineProperty(exports, "__esModule", {
    value: true
});
Object.defineProperty(exports, "ConfigStore", {
    enumerable: true,
    get: function() {
        return ConfigStore;
    }
});
const _errors = require("./errors");
const _base = require("./refs/base");
const _inputobject = require("./refs/input-object");
const _interface = require("./refs/interface");
const _mutation = require("./refs/mutation");
const _object = require("./refs/object");
const _query = require("./refs/query");
const _subscription = require("./refs/subscription");
function _define_property(obj, key, value) {
    if (key in obj) {
        Object.defineProperty(obj, key, {
            value: value,
            enumerable: true,
            configurable: true,
            writable: true
        });
    } else {
        obj[key] = value;
    }
    return obj;
}
class ConfigStore {
    addFields(param, fields) {
        this.onTypeConfig(param, (_config, ref)=>{
            if (!(ref instanceof _interface.InterfaceRef || ref instanceof _object.ObjectRef || ref instanceof _query.QueryRef || ref instanceof _mutation.MutationRef || ref instanceof _subscription.SubscriptionRef)) {
                throw new _errors.PothosSchemaError(`Can not add fields to ${ref} because it is not an object`);
            }
            ref.addFields(fields);
        });
    }
    addInputFields(param, fields) {
        this.onTypeConfig(param, (_config, ref)=>{
            if (!(ref instanceof _inputobject.InputObjectRef)) {
                throw new _errors.PothosSchemaError(`Can not add fields to ${ref} because it is not an input object`);
            }
            ref.addFields(fields);
        });
    }
    associateParamWithRef(param, ref) {
        const resolved = this.resolveParamAssociations(ref);
        this.paramAssociations.set(param, resolved);
        var _this_pendingTypeConfigResolutions_get;
        const pendingResolutions = (_this_pendingTypeConfigResolutions_get = this.pendingTypeConfigResolutions.get(param)) !== null && _this_pendingTypeConfigResolutions_get !== void 0 ? _this_pendingTypeConfigResolutions_get : [];
        if (pendingResolutions.length > 0) {
            if (typeof resolved === 'string' && this.typeConfigs.has(resolved)) {
                for (const cb of pendingResolutions){
                    const config = this.typeConfigs.get(resolved);
                    cb(config, this.implementors.get(config.name));
                }
            } else {
                for (const cb of pendingResolutions){
                    this.onTypeConfig(resolved, cb);
                }
            }
        }
        this.pendingTypeConfigResolutions.delete(param);
    }
    onTypeConfig(param, onConfig) {
        const resolved = this.resolveParamAssociations(param);
        if (typeof resolved === 'string' && this.typeConfigs.has(resolved)) {
            const config = this.typeConfigs.get(resolved);
            onConfig(config, this.implementors.get(config.name));
        } else {
            if (!this.pendingTypeConfigResolutions.has(resolved)) {
                this.pendingTypeConfigResolutions.set(resolved, []);
            }
            this.pendingTypeConfigResolutions.get(resolved).push(onConfig);
        }
    }
    onTypeConfigOfKind(param, kind, onConfig) {
        this.onTypeConfig(param, (config)=>{
            if (config.kind !== kind) {
                throw new _errors.PothosSchemaError(`Expected ${this.describeRef(param)} to be of kind ${kind} but it is of kind ${config.kind}`);
            }
            onConfig(config);
        });
    }
    addTypeRef(ref) {
        if (this.refs.has(ref)) {
            return;
        }
        if (!this.pending) {
            ref.prepareForBuild();
        }
        this.refs.add(ref);
        ref.onConfig((config)=>{
            const implementor = this.implementors.get(config.name);
            if (implementor && implementor !== ref) {
                throw new _errors.PothosSchemaError(`Duplicate typename: Another type with name ${config.name} already exists.`);
            }
            if (!implementor) {
                this.implementors.set(config.name, ref);
                this.associateParamWithRef(ref, config.name);
                if (ref instanceof _object.ObjectRef || ref instanceof _interface.InterfaceRef || ref instanceof _inputobject.InputObjectRef) {
                    if (!this.fields.has(config.name)) {
                        this.fields.set(config.name, new Map());
                    }
                    this.onPrepare(()=>{
                        ref.onField((fieldName, field)=>{
                            const fields = this.fields.get(config.name);
                            if (fields.has(fieldName)) {
                                throw new _errors.PothosSchemaError(`Duplicate field ${fieldName} on ${config.name}`);
                            }
                            var _this_typeConfigs_get;
                            fields.set(fieldName, field.getConfig(fieldName, (_this_typeConfigs_get = this.typeConfigs.get(config.name)) !== null && _this_typeConfigs_get !== void 0 ? _this_typeConfigs_get : config));
                        });
                    });
                }
            }
            this.typeConfigs.set(config.name, config);
            if (this.pendingTypeConfigResolutions.has(config.name)) {
                const cbs = this.pendingTypeConfigResolutions.get(config.name);
                for (const cb of cbs){
                    cb(config, ref);
                }
            }
            this.pendingTypeConfigResolutions.delete(config.name);
        });
    }
    subscribeToFields(_ref) {}
    hasImplementation(typeName) {
        return this.typeConfigs.has(typeName);
    }
    hasConfig(ref) {
        const resolved = this.resolveParamAssociations(ref);
        if (typeof resolved !== 'string' || !this.typeConfigs.has(resolved)) {
            return false;
        }
        return true;
    }
    getTypeConfig(ref, kind) {
        const resolved = this.resolveParamAssociations(ref);
        if (typeof resolved !== 'string' || !this.typeConfigs.has(resolved)) {
            throw new _errors.PothosSchemaError(`${this.describeRef(ref)} has not been implemented`);
        }
        const config = this.typeConfigs.get(resolved);
        if (kind && config.graphqlKind !== kind) {
            throw new _errors.PothosSchemaError(`Expected ref to resolve to a ${kind} type, but got ${config.kind}`);
        }
        return config;
    }
    getInputTypeRef(param) {
        const resolved = this.resolveParamAssociations(param);
        if (param instanceof _base.BaseTypeRef) {
            if (param.kind !== 'InputObject' && param.kind !== 'Enum' && param.kind !== 'Scalar') {
                throw new _errors.PothosSchemaError(`Expected ${this.describeRef(param)} to be an input type but got ${param.kind}`);
            }
            return param;
        }
        if (typeof resolved === 'string' && this.typeConfigs.has(resolved)) {
            const ref = this.implementors.get(resolved);
            if (ref instanceof _base.BaseTypeRef) {
                if (ref.kind !== 'InputObject' && ref.kind !== 'Enum' && ref.kind !== 'Scalar') {
                    throw new _errors.PothosSchemaError(`Expected ${this.describeRef(ref)} to be an input type but got ${ref.kind}`);
                }
                return ref;
            }
        }
        throw new _errors.PothosSchemaError(`${this.describeRef(param)} has not been implemented`);
    }
    getOutputTypeRef(param) {
        const resolved = this.resolveParamAssociations(param);
        if (param instanceof _base.BaseTypeRef) {
            if (param.kind === 'InputObject' || param.kind === 'InputList') {
                throw new _errors.PothosSchemaError(`Expected ${param.name} to be an output type but got ${param.kind}`);
            }
            return param;
        }
        if (typeof resolved === 'string' && this.typeConfigs.has(resolved)) {
            const ref = this.implementors.get(resolved);
            if (ref instanceof _base.BaseTypeRef) {
                if (ref.kind === 'InputObject' || ref.kind === 'InputList') {
                    throw new _errors.PothosSchemaError(`Expected ${ref.name} to be an output type but got ${ref.kind}`);
                }
                return ref;
            }
        }
        throw new _errors.PothosSchemaError(`${this.describeRef(param)} has not been implemented`);
    }
    getFields(name, kind) {
        const typeConfig = this.getTypeConfig(name);
        if (!this.fields.has(name)) {
            this.fields.set(name, new Map());
        }
        const fields = this.fields.get(name);
        if (kind && typeConfig.graphqlKind !== kind) {
            throw new _errors.PothosSchemaError(`Expected ${name} to be a ${kind} type, but found ${typeConfig.graphqlKind}`);
        }
        return fields;
    }
    prepareForBuild() {
        this.pending = false;
        for (const ref of this.refs){
            ref.prepareForBuild();
        }
        const { pendingActions } = this;
        this.pendingActions = [];
        for (const fn of pendingActions){
            fn();
        }
        if (this.pendingTypeConfigResolutions.size > 0) {
            throw new _errors.PothosSchemaError(`Missing implementations for some references (${[
                ...this.pendingTypeConfigResolutions.keys()
            ].map((ref)=>this.describeRef(ref)).join(', ')}).`);
        }
    }
    onPrepare(cb) {
        if (this.pending) {
            this.pendingActions.push(cb);
        } else {
            cb();
        }
    }
    resolveParamAssociations(param) {
        let current = this.paramAssociations.get(param);
        while(current && this.paramAssociations.has(current)){
            current = this.paramAssociations.get(current);
        }
        return current !== null && current !== void 0 ? current : param;
    }
    describeRef(ref) {
        if (typeof ref === 'string') {
            return ref;
        }
        if (ref && ref.toString !== ({}).toString) {
            return String(ref);
        }
        if (typeof ref === 'function' && ref.name !== (()=>{}).name) {
            return `function ${ref.name}`;
        }
        return '<unnamed ref or enum>';
    }
    constructor(builder){
        _define_property(this, "typeConfigs", new Map());
        _define_property(this, "fields", new Map());
        _define_property(this, "refs", new Set());
        _define_property(this, "implementors", new Map());
        _define_property(this, "pendingActions", []);
        _define_property(this, "paramAssociations", new Map());
        _define_property(this, "pendingTypeConfigResolutions", new Map());
        _define_property(this, "pending", true);
        _define_property(this, "builder", void 0);
        this.builder = builder;
    }
}

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