'use strict'
const fastJsonStringify = require('fast-json-stringify')
function SerializerSelector () {
return function buildSerializerFactory (externalSchemas, serializerOpts) {
const fjsOpts = Object.assign({}, serializerOpts, { schema: externalSchemas })
return responseSchemaCompiler.bind(null, fjsOpts)
}
}
function responseSchemaCompiler (fjsOpts, { schema /* method, url, httpStatus */ }) {
if (fjsOpts.schema && schema.$id && fjsOpts.schema[schema.$id]) {
fjsOpts.schema = { ...fjsOpts.schema }
delete fjsOpts.schema[schema.$id]
}
return fastJsonStringify(schema, fjsOpts)
}
function StandaloneSerializer (options = { readMode: true }) {
if (options.readMode === true && typeof options.restoreFunction !== 'function') {
throw new Error('You must provide a function for the restoreFunction-option when readMode ON')
}
if (options.readMode !== true && typeof options.storeFunction !== 'function') {
throw new Error('You must provide a function for the storeFunction-option when readMode OFF')
}
if (options.readMode === true) {
// READ MODE: it behalf only in the restore function provided by the user
return function wrapper () {
return function (opts) {
return options.restoreFunction(opts)
}
}
}
// WRITE MODE: it behalf on the default SerializerSelector, wrapping the API to run the Ajv Standalone code generation
const factory = SerializerSelector()
return function wrapper (externalSchemas, serializerOpts = {}) {
// to generate the serialization source code, this option is mandatory
serializerOpts.mode = 'standalone'
const compiler = factory(externalSchemas, serializerOpts)
return function (opts) { // { schema/*, method, url, httpPart */ }
const serializeFuncCode = compiler(opts)
options.storeFunction(opts, serializeFuncCode)
// eslint-disable-next-line no-new-func
return new Function(serializeFuncCode)
}
}
}
module.exports.SerializerSelector = SerializerSelector
module.exports.StandaloneSerializer = StandaloneSerializer
module.exports.default = StandaloneSerializer