/*
 * Copyright 2023 Fluence Labs Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { ServiceDef } from '@fluencelabs/interfaces';
import { recursiveRenameLaquaProps } from '../utils.js';
import { TypeGenerator } from './interfaces.js';

interface DefaultServiceId {
    s_Some__f_value?: string
}

export function generateServices(typeGenerator: TypeGenerator, services: Record<string, ServiceDef>) {
    const generated = Object.entries(services).map(([srvName, srvDef]) => generateService(typeGenerator, srvName, srvDef)).join('\n\n');

    return generated + '\n';
}

function generateService(typeGenerator: TypeGenerator, srvName: string, srvDef: ServiceDef) {
    return [
        typeGenerator.serviceType(srvName, srvDef),
        generateRegisterServiceOverload(typeGenerator, srvName, srvDef)
    ].join('\n');
}

function generateRegisterServiceOverload(typeGenerator: TypeGenerator, srvName: string, srvDef: ServiceDef) {
    return [
        `export function register${srvName}(${typeGenerator.type('...args', 'any[]')}) {`,
        '    registerService$$(',
        '        args,',
        `        ${serviceToJson(srvDef)}`,
        '    );',
        '}'
    ].join('\n');
}

function serviceToJson(service: ServiceDef): string {
    return JSON.stringify({
        ...(
            (service.defaultServiceId as DefaultServiceId)?.s_Some__f_value
                ? { defaultServiceId: (service.defaultServiceId as DefaultServiceId).s_Some__f_value }
                : {}
        ),
        functions: recursiveRenameLaquaProps(service.functions)
    }, null, 4);
}