backend-smith
Version:
A CLI tool for automating backend component generation in Express.js, including modules, schemas, routes, services, and more.
76 lines (75 loc) • 6.02 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.validationTemplate = void 0;
var parseFieldsHelper_1 = require("../helper/parseFieldsHelper");
var toPascalCase_1 = require("../helper/toPascalCase");
// Function to generate validation for a schema recursively
function generateValidations(schema, parentKey, required) {
if (parentKey === void 0) { parentKey = ''; }
if (required === void 0) { required = true; }
var validationCode = '\n';
for (var _i = 0, _a = Object.entries(schema); _i < _a.length; _i++) {
var _b = _a[_i], key = _b[0], value = _b[1];
var fieldKey = parentKey ? "".concat(parentKey, ".").concat(key) : key;
var validationLine = " body('".concat(fieldKey, "')");
if (value.required && required) {
validationLine += ".notEmpty().withMessage('".concat(fieldKey, " is required')");
}
if (Array.isArray(value.type)) {
var type = value.type[0];
if (typeof type === 'string') {
if (type === 'String') {
validationLine += ".isArray().withMessage('".concat(fieldKey, " must be an array')");
validationLine += ".bail()";
if (value.enum) {
validationLine += ".custom((value) => {\n if (value.some(item => [\"".concat(value.enum.join('", "'), "\"].includes(item))) {\n throw new Error('Each item in ").concat(fieldKey, " must be in [").concat(value.enum.join(', '), "].');\n }\n return true;\n })\n ");
}
else {
validationLine += ".custom((value) => {\n if (value.some(item => typeof item !== 'string')) {\n throw new Error('Each item in ".concat(fieldKey, " must be a string.');\n }\n return true;\n })\n ");
}
}
else if (type === 'Number') {
validationLine += ".isArray().withMessage('".concat(fieldKey, " must be an array')");
validationLine += ".bail()";
validationLine += ".custom((value) => {\n if (value.some(item => typeof item !== 'number')) {\n throw new Error('Each item in ".concat(fieldKey, " must be a string.');\n }\n return true;\n })\n ");
}
else if (type === 'Boolean') {
validationLine += ".isArray().withMessage('".concat(fieldKey, " must be an array')");
validationLine += ".custom((value) => {\n if (value.some(item => typeof item !== 'boolean')) {\n throw new Error('Each item in ".concat(fieldKey, " must be a string.');\n }\n return true;\n })\n ");
}
}
else if (typeof type === 'object') {
// For nested array of objects
validationCode += generateValidations(type, "".concat(fieldKey, ".*"), required);
continue;
}
}
else if (typeof value.type === 'string') {
if (value.type === 'String') {
validationLine += ".isString().withMessage('".concat(fieldKey, " must be a string')");
if (value.enum) {
validationLine += ".custom((value) => {\n if ([\"".concat(value.enum.join('", "'), "\"].includes(value)) {\n throw new Error('").concat(fieldKey, " must be in [").concat(value.enum.join(', '), "].');\n }\n return true;\n })\n ");
}
}
else if (value.type === 'Number') {
validationLine += ".isNumeric().withMessage('".concat(fieldKey, " must be a number')");
}
else if (value.type === 'Boolean') {
validationLine += ".isBoolean().withMessage('".concat(fieldKey, " must be a boolean')");
}
}
else if (typeof value.type === 'object') {
// Handle nested objects
validationCode += generateValidations(value.type, fieldKey, required);
continue;
}
validationCode += validationLine.trim() + ",\n";
}
return validationCode;
}
var validationTemplate = function (module, fields) {
var parsedFields = (0, parseFieldsHelper_1.parseFieldsHelper)(fields);
var name = (0, toPascalCase_1.toPascalCase)(module);
return "\n import { body } from 'express-validator';\n \n export const create".concat(name, " = [").concat(generateValidations(parsedFields), "];\n\n export const update").concat(name, " = [").concat(generateValidations(parsedFields), "];\n\n export const edit").concat(name, " = [").concat(generateValidations(parsedFields, '', false), "];\n ");
};
exports.validationTemplate = validationTemplate;