import { resolve } from 'path';

import type { Client } from '../client/interfaces/Client';
import type { HttpClient } from '../HttpClient';
import type { Indent } from '../Indent';
import { writeFile } from './fileSystem';
import { formatCode as f } from './formatCode';
import { formatIndentation as i } from './formatIndentation';
import { getHttpRequestName } from './getHttpRequestName';
import type { Templates } from './registerHandlebarTemplates';
import { sortModelsByName } from './sortModelsByName';
import { sortServicesByName } from './sortServicesByName';

/**
 * Generate the OpenAPI client index file using the Handlebar template and write it to disk.
 * The index file just contains all the exports you need to use the client as a standalone
 * library. But yuo can also import individual models and services directly.
 * @param client Client object, containing, models, schemas and services
 * @param templates The loaded handlebar templates
 * @param outputPath Directory to write the generated files to
 * @param httpClient The selected httpClient (fetch, xhr, node or axios)
 * @param clientName Custom client class name
 * @param indent Indentation options (4, 2 or tab)
 * @param postfix Service name postfix
 */
export const writeClientClass = async (
    client: Client,
    templates: Templates,
    outputPath: string,
    httpClient: HttpClient,
    clientName: string,
    indent: Indent,
    postfix: string
): Promise<void> => {
    const templateResult = templates.client({
        clientName,
        httpClient,
        postfix,
        server: client.server,
        version: client.version,
        models: sortModelsByName(client.models),
        services: sortServicesByName(client.services),
        httpRequest: getHttpRequestName(httpClient),
    });

    await writeFile(resolve(outputPath, `${clientName}.ts`), i(f(templateResult), indent));
};