import { BehaviorSubject } from 'rxjs';
import { ConnectionAttribute, ConnectionRequest, ConnectionState, OutGoingInfo } from '../interfaces/general.interface';
import { GrpcServiceMethod } from './grpc.service.method';
import { BufferService } from './buffer.service';
import { v4 as uuidv4 } from 'uuid'
import * as dotenv from 'dotenv'
dotenv.config()

export class ServerClientManager {

    private connectionAttributes: ConnectionAttribute[] = []
    private request: ConnectionRequest | any
    private outGoingInfo: OutGoingInfo
    private grpcService: GrpcServiceMethod = new GrpcServiceMethod()

    constructor() {
        this.outGoingInfo = {
            StreamID: uuidv4(),
            PublisherID: uuidv4(),
            SubscriberID: uuidv4()
        }
    }


    public generateConnection(request: ConnectionRequest) {
        this.request = request
        let database: string
        if (request.database) {
            database = request.database
        } else {
            database = request.server.name + request.client.name
        }
        /* Inject retransmission here */
        let initialReport: ConnectionState = { status: 'BUFFER' }
        let reportSubject: BehaviorSubject<ConnectionState> = new BehaviorSubject(initialReport)
        let retransmission: BufferService = new BufferService(request.server.messageToBePublishedFromApplication, reportSubject, database)

        let connectionAttribute: ConnectionAttribute = {
            ConnectionID: {
                local: '',
                remote: ''
            },
            outGoing: {
                MessageToBePublished: retransmission.getMessages(),
                MessageToBeReceived: null
            },
            inComing: {
                MessageToBePublished: null,
                MessageToBeReceived: request.client.messageToBeReceivedFromRemote
            },
            connectionStatus: reportSubject
        }

        // connectionAttribute.outGoing.MessageToBePublished?.subscribe(e => console.log((e.message as MessageLog).appData.msgId))
        // This is default connection`
        if (!request.server.connectionType) {
            request.server.connectionType = 'GRPC'
        }
        // For each connection type:
        if (request.server.connectionType == 'GRPC') {
            this.grpcService.create(request, connectionAttribute, this.outGoingInfo)
            this.connectionAttributes.push(connectionAttribute)
            console.log(`There is now ${this.connectionAttributes.length} connection Attributes`)
        }
    }

}