import { Express } from 'express';
import fs from 'fs';
import path from 'path';

import { IOptions } from '../interfaces/IOptions';
import { getPbjsFile } from './getPbjsFile';
import { getPbtsFile } from './getPbtsFile';
import { generateMockRoute } from './mockServer';
import { saveApiFile } from './saveApiFile';
import { saveJSONSchemaFile } from './saveJSONSchemaFile';
import { saveMockJSONFile } from './saveMockJSONFile';
import { saveTypeScriptDefineFile } from './saveTypeScriptDefineFile';

/**
 * 转换protobuf定义文件为ts定义文件和api请求文件
 * @param {String} filePath protobuf定义文件的路径
 * @param {Express} mockServer mockServer对象，是一个express实例化的对象
 * @param {Object} options 用户自定义配置
 */
export async function transferTSFile(filePath: string, mockServer: Express, options: IOptions) {
  const pbjsFilePath = await getPbjsFile(filePath, options);
  const pbtsFilePath = await getPbtsFile(pbjsFilePath, options);
  await fs.promises.unlink(pbjsFilePath);
  await saveTypeScriptDefineFile(pbtsFilePath, options);
  await saveApiFile(pbtsFilePath, options);
  const jsonSchemaFilePath = await saveJSONSchemaFile(pbtsFilePath);
  const mockFilePath = await saveMockJSONFile(jsonSchemaFilePath);
  console.log(`success generate ${filePath} to ${path.resolve(options.folder, filePath)}.d.ts and ${path.resolve(options.folder, filePath)}.ts`);
  if (options.mock && mockServer) {
    console.log('begin open mock server');
    await generateMockRoute(mockFilePath, mockServer, options);
  }
}