import {CliCommandInterface} from '../../interfaces/cli-command.interface';
import * as inquirer from "inquirer";
import {FormDataInterface} from "./form-data.interface";
import * as shell from "shelljs";
import {ProjectConfiguration} from "../../shared/project/project-configuration";
import fs = require('fs');
import path = require("path");
import appRoot = require('app-root-path');

export const newCommand: CliCommandInterface = {
    name: 'new',
    description: 'Create a new Project',
    _call(data?: any): boolean {

        const formPrompt = inquirer.prompt([
            {
                name: 'name',
                type: 'input',
                message: 'Choose a name for the template:',
                validate(answer: string): boolean | string {
                    if (!answer) {
                        return 'Please provide a name';
                    }
                    if (/[^a-zA-Z0-9\-_]/.test(answer)) {
                        return 'The name can only consist of letters & numbers including - and _';
                    }
                    return true;
                }
            },
            {
                name: 'path',
                type: 'input',
                message: 'Choose the location for the template',
                default: (answers: FormDataInterface) => process.cwd() + '/' + answers.name,
                validate(answer: string): boolean | string {
                    // TODO validate path
                    // TODO ensure directory is empty or does not exist at all
                    return !!answer || 'Please enter a path';
                }
            },
            {
                name: 'initTemplate',
                type: 'confirm',
                message: 'Would you like to start with a basic template?'
            }
        ]).then((answers: FormDataInterface) => {
            shell.mkdir(answers.path);
            const projectConfig: ProjectConfiguration = ProjectConfiguration.create(answers.name);
            fs.writeFile(path.resolve(answers.path, ProjectConfiguration.configurationFileName), projectConfig.serialize(), () => {
            });
            if (answers.initTemplate) {
                // Copy contents of pdf-bunnies template to the newly created bunny-project
                shell.cp('-R', path.resolve(appRoot.path, 'etc/template/*'), answers.path);
            }
        });
        return true;
    }
};