@elsikora/nestjs-crud-automator/dist/cjs/utility/api/route/discriminator/create-validation-failure.utility.js

A library for automating the creation of CRUD operations in NestJS.

'use strict';

/**
 * Creates class-validator-shaped validation failure for route-level discriminator selection failures.
 * @param {TApiRouteDiscriminatedDtoProperties} properties - Route-level discriminated DTO config.
 * @param {unknown} payload - Request body payload.
 * @returns {ValidationError} Class-validator-compatible validation failure.
 */
function ApiRouteCreateDiscriminatedDtoValidationFailure(properties, payload) {
    const discriminatorPropertyName = properties.discriminator.propertyName;
    const allowedValuesDescription = Object.keys(properties.discriminator.mapping)
        .map((value) => {
        return `'${value}'`;
    })
        .join(", ");
    if (!payload || typeof payload !== "object" || Array.isArray(payload)) {
        return {
            constraints: {
                mustMatchDiscriminatorMapping: "body must be an object",
            },
            property: "body",
            value: payload,
        };
    }
    const payloadAsRecord = payload;
    if (!(discriminatorPropertyName in payloadAsRecord)) {
        return {
            constraints: {
                mustMatchDiscriminatorMapping: `${discriminatorPropertyName} is missing required discriminator field '${discriminatorPropertyName}'`,
            },
            property: discriminatorPropertyName,
            value: undefined,
        };
    }
    const discriminatorValue = payloadAsRecord[discriminatorPropertyName];
    return {
        constraints: {
            mustMatchDiscriminatorMapping: `${discriminatorPropertyName} has invalid discriminator value '${String(discriminatorValue)}'. must be one of: ${allowedValuesDescription}`,
        },
        property: discriminatorPropertyName,
        value: discriminatorValue,
    };
}

exports.ApiRouteCreateDiscriminatedDtoValidationFailure = ApiRouteCreateDiscriminatedDtoValidationFailure;
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