gql-generator-node/src/utils.js

Generate queries as simple function of schema.

/* DOCUMENT INFORMATION
	- Author:   Dominik Maszczyk
	- Email:    Skitionek@gmail.com
	- Created:  2019-06-06
*/

import { MODULE_NAME } from "./constants";

/* istanbul ignore next */
export const moduleConsole = {
	log: (...args) =>
		console.log(`[${MODULE_NAME} log]:`, ...args),
	warn: (...args) =>
		console.log(`[${MODULE_NAME} warning]:`, ...args),
	error: (...args) =>
		console.log(`[${MODULE_NAME} error]:`, ...args)
};

/**
 * Compile arguments dictionary for a field
 * @param field current field object
 * @param duplicateArgCounts map for deduping argument name collisions
 * @param allArgsDict dictionary of all arguments
 * @param path to current field
 */
export const getFieldArgsDict = (
	field,
	duplicateArgCounts,
	allArgsDict = {},
	path
) =>
	field.args.reduce((o, arg) => {
		const arg_name = `${path.join('_')}_${field.name}_${arg.name}`;
		/* istanbul ignore next */
		if (arg_name in duplicateArgCounts) {
			moduleConsole.warn(`
			I cannot find the case for these duplicates anymore,
			please let me know if you are seeing this message.
			`);
			const index = duplicateArgCounts[arg_name] + 1;
			duplicateArgCounts[arg_name] = index;
			o[`${arg_name}${index}`] = arg;
		} else /* istanbul ignore next */ if (allArgsDict[arg_name]) {
			moduleConsole.warn(`
			I cannot find the case for these duplicates anymore,
			please let me know if you are seeing this message.
			`);
			duplicateArgCounts[arg_name] = 1;
			o[arg_name] = arg;
		} else if (!path.length) {
			o[arg.name] = arg;
		} else {
			o[arg_name] = arg;
		}
		return o;
	}, {});

/**
 * Generate variables string
 * @param dict dictionary of arguments
 */
export const getArgsToVarsStr = dict =>
	Object.entries(dict)
		.map(([varName, arg]) => `${arg.name}: $${varName}`)
		.join(', ');

/**
 * Generate types string
 * @param dict dictionary of arguments
 */
export const getVarsToTypesStr = dict =>
	Object.entries(dict)
		.map(([varName, arg]) => `$${varName}: ${arg.type}`)
		.join(', ');