import { Component, JsonObject, IConfigReader } from "merapi";
import { IMerapiDescriptor, IHelper } from "interfaces/main";
import Merapi from "components/models/merapi";
import { Answers, prompt } from "inquirer";

export default class MerapiManager extends Component {
    constructor(
        private merapi : IMerapiDescriptor,
        private config : IConfigReader,
        private helper : IHelper,
    ) {
        super();
    }

    public async init(options : JsonObject) : Promise<void> {
        try {
            const answer = await this.buildSchema(this.merapi);
            console.log(answer);
            await this.generate(answer);
        } catch (exception) {
            throw exception;
        }
    }

    public async buildSchema(schema : IMerapiDescriptor) : Promise<IMerapiDescriptor> {
        const {name, author, componentsPath, httpPort, plugins, servicePort} = schema;
        const pluginList : Map<number, string> = this.config.get("config.plugins") as Map<number, string>;
        return await prompt([
            {
                type: "input",
                name: "name",
                message: "Name : ",
                default: "Merapi Service",
                // when: () => !name,
            },
            {
                type: "input",
                name: "componentPath",
                message: "Components Path : ",
                default: "components/"
                // when: () => !componentsPath,
                // tslint:disable-next-line:no-shadowed-variable
                // filter(componentsPath : string) {
                //     if (!componentsPath === 0) {
                //         return null;
                //     }
                //     return componentsPath;
                // }
            },
            {
                type: "checkbox",
                name: "plugins",
                message: `Plugins : `,
                choices: pluginList,
                // when: () => !plugins,
                // // tslint:disable-next-line:no-shadowed-variable
                // filter: (plugins : string) => {
                //     return plugins.toLowerCase();
                // }
            },
            {
                type: "input",
                name: "httpPort",
                message: "Http Port : ",
                default: 8000
            },
            {
                type: "input",
                name: "servicePort",
                message: "Service Port : ",
                default: 5000
            },
            {
                type: "input",
                name: "main",
                message: "Main Class Path : ",
                default: "main"
            },
        ]) as IMerapiDescriptor;
    }

    private async generate(descriptor : IMerapiDescriptor) : Promise<void> {
        try {
            const serviceYmlDescriptor = {
                schema: "kata.ai/schema/merapi/1.0",
                name: (descriptor.name) ? descriptor.name : "${package.name}",
                version: "${package.version}",
                plugins: descriptor.plugins,
                components : { main: "Main" } ,
                service: {
                    port: descriptor.servicePort
                },
                app: {
                    host: "0.0.0.0",
                    port: (descriptor.httpPort) ? descriptor.httpPort : "${$APP_PORT}"
                },
                main: descriptor.main
            };
    
            const pluginYmlDescriptor = {
                development: {
                    exclude: [ "loggly" ]
                },
                infomedia: {
                    exclude: [ "loggly", "aop", "aop-logger" ]
                }
            };
    
            this.helper.dumpYaml("./service.yml", serviceYmlDescriptor);
            this.helper.dumpYaml("./plugin.yml", pluginYmlDescriptor);
            this.helper.dumpPackageJson(descriptor);
            this.helper.copyAll();
            console.log(`Initialized new Merapi project: ${descriptor.name}`);
        } catch (exception) {
            throw exception;
        }
        
    }
}