import * as plugins from './smartshell.plugins';
import * as smartshellWrap from './smartshell.wrap';

export type TExecutor = 'sh' | 'bash';

export interface ISmartshellContructorOptions {
  executor: TExecutor;
  sourceFilePaths: string[];
}

export class Smartshell {
  executor: TExecutor;
  sourceFileArray: string[] = [];
  constructor(optionsArg: ISmartshellContructorOptions) {
    this.executor = optionsArg.executor;
    for (let sourceFilePath of optionsArg.sourceFilePaths) {
      this.sourceFileArray.push(sourceFilePath);
    }
  }

  addSourceFiles(sourceFilePathsArray: string[]) {
    for (let sourceFilePath of sourceFilePathsArray) {
      this.sourceFileArray.push(sourceFilePath);
    }
  }

  cleanSourceFiles() {
    this.sourceFileArray = [];
  }

  /**
   * executes silently and returns IExecResult
   * @param commandArg
   */
  async execSilent(commandArg: string) {
    let execCommand = this.createExecString(commandArg);
    return await smartshellWrap.execSilent(execCommand);
  }

  /**
   * executes and returns IExecResult
   * @param commandArg
   */
  async exec(commandArg: string) {
    let execCommand = this.createExecString(commandArg);
    return await smartshellWrap.exec(execCommand);
  }

  /**
   * creates the final sourcing string
   * @param commandArg
   */
  private createExecString(commandArg): string {
    if (this.executor === 'bash') {
      let sourceString = '';
      for (let sourceFilePath of this.sourceFileArray) {
        sourceString = sourceString + `source ${sourceFilePath} && `;
      }
      return `bash -c '${sourceString} ${commandArg}'`;
    } else {
      return commandArg;
    }
  }
}