"use strict";

import { Network } from "@ethersproject/networks";
import { ConnectionInfo } from "@ethersproject/web";

import { Logger } from "@ethersproject/logger";
import { version } from "./_version";
const logger = new Logger(version);

import { UrlJsonRpcProvider } from "./url-json-rpc-provider";

const defaultApplicationId = "62e1ad51b37b8e00394bda3b";


export class PocketProvider extends UrlJsonRpcProvider {
    readonly applicationId: string;
    readonly applicationSecretKey: string;
    readonly loadBalancer: boolean;

    static getApiKey(apiKey: any): any {
        const apiKeyObj: { applicationId: string, applicationSecretKey: string, loadBalancer: boolean } = {
            applicationId: null,
            loadBalancer: true,
            applicationSecretKey: null
        };

        // Parse applicationId and applicationSecretKey
        if (apiKey == null) {
            apiKeyObj.applicationId = defaultApplicationId;

        } else if (typeof (apiKey) === "string") {
            apiKeyObj.applicationId = apiKey;

        } else if (apiKey.applicationSecretKey != null) {
            apiKeyObj.applicationId = apiKey.applicationId;
            apiKeyObj.applicationSecretKey = apiKey.applicationSecretKey;

        } else if (apiKey.applicationId) {
            apiKeyObj.applicationId = apiKey.applicationId;

        } else {
            logger.throwArgumentError("unsupported PocketProvider apiKey", "apiKey", apiKey);
        }

        return apiKeyObj;
    }

    static getUrl(network: Network, apiKey: any): ConnectionInfo {
        let host: string = null;
        switch (network ? network.name : "unknown") {
            case "goerli":
                host = "eth-goerli.gateway.pokt.network";
                break;
            case "homestead":
                host = "eth-mainnet.gateway.pokt.network";
                break;
            case "kovan":
                host = "poa-kovan.gateway.pokt.network";
                break;
            case "matic":
                host = "poly-mainnet.gateway.pokt.network";
                break;
            case "maticmum":
                host = "polygon-mumbai-rpc.gateway.pokt.network";
                break;
            case "rinkeby":
                host = "eth-rinkeby.gateway.pokt.network";
                break;
            case "ropsten":
                host = "eth-ropsten.gateway.pokt.network";
                break;
            default:
                logger.throwError("unsupported network", Logger.errors.INVALID_ARGUMENT, {
                    argument: "network",
                    value: network
                });
        }

        const url = `https:/\/${ host }/v1/lb/${ apiKey.applicationId }`

        const connection: ConnectionInfo = { headers: { }, url };
        if (apiKey.applicationSecretKey != null) {
            connection.user = "";
            connection.password = apiKey.applicationSecretKey
        }

        return connection;
    }

    isCommunityResource(): boolean {
        return (this.applicationId === defaultApplicationId);
    }
}