nestjs-custom-class-validators/lib/decorators/enum.decorator.js

This package contains a few custom validator I have found to be repetitive, So I made templates that handles both class-validator checks and Swagger configuration

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.CustomEnumValidator = void 0;
const class_validator_1 = require("class-validator");
const commonDecoratorFunctions_1 = require("../utils/commonDecoratorFunctions");
function CustomEnumValidator(details) {
    const { validEnum, optional, defaultValue, description, isArray } = details;
    const mySwaggerProp = (0, commonDecoratorFunctions_1.swaggerProp)({
        validEnum,
        optional,
        description,
        defaultValue,
        isArray,
    });
    const throwError = (target) => {
        throw new Error(`Enum with keys ${Object.keys(validEnum)} got invalid default value ${defaultValue} in ${target.constructor.name}`);
    };
    return function (target, key) {
        if (!validEnum) {
            throw new Error(`Please provide a validEnum for ${target.constructor.name}}.${key}`);
        }
        if (defaultValue &&
            !isArray &&
            !Object.values(validEnum).includes(defaultValue)) {
            throwError(target);
        }
        if (defaultValue && isArray && Array.isArray(defaultValue)) {
            const allDefaultsValues = Object.values(defaultValue);
            const invalidDefault = defaultValue.filter((value) => !allDefaultsValues.includes(value));
            if (invalidDefault.length)
                throwError(target);
        }
        if (optional)
            (0, class_validator_1.IsOptional)()(target, key);
        (0, commonDecoratorFunctions_1.notEmptyFn)(key)(target, key);
        (0, commonDecoratorFunctions_1.isEnumFn)(key, validEnum, isArray)(target, key);
        mySwaggerProp(target, key);
    };
}
exports.CustomEnumValidator = CustomEnumValidator;
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