import { SNSClient, SNSClientConfig } from "@aws-sdk/client-sns";
import {
  InstrumentedConnection,
  InstrumentedSuiClient,
  RpcConfig,
  providerPoolSupplier,
} from "@xlabs/rpc-pool";
import {
  ArbitrumEvmJsonRPCBlockRepository,
  BscEvmJsonRPCBlockRepository,
  EvmJsonRPCBlockRepository,
  EvmJsonRPCBlockRepositoryCfg,
  FileMetadataRepository,
  MoonbeamEvmJsonRPCBlockRepository,
  PolygonJsonRPCBlockRepository,
  PromStatRepository,
  ProviderPoolMap,
  RateLimitedSolanaSlotRepository,
  SnsEventRepository,
  StaticJobRepository,
  SuiJsonRPCBlockRepository,
  Web3SolanaSlotRepository,
} from ".";
import { JobRepository, SuiRepository } from "../../domain/repositories";
import { Config } from "../config";
import { InstrumentedHttpProvider } from "../rpc/http/InstrumentedHttpProvider";
import { RateLimitedEvmJsonRPCBlockRepository } from "./evm/RateLimitedEvmJsonRPCBlockRepository";
import { RateLimitedSuiJsonRPCBlockRepository } from "./sui/RateLimitedSuiJsonRPCBlockRepository";

const SOLANA_CHAIN = "solana";
const EVM_CHAIN = "evm";
const EVM_CHAINS = new Map([
  ["ethereum", "evmRepo"],
  ["ethereum-sepolia", "evmRepo"],
  ["avalanche", "evmRepo"],
  ["oasis", "evmRepo"],
  ["fantom", "evmRepo"],
  ["karura", "evmRepo"],
  ["acala", "evmRepo"],
  ["klaytn", "evmRepo"],
  ["celo", "evmRepo"],
  ["optimism", "evmRepo"],
  ["optimism-sepolia", "evmRepo"],
  ["base", "evmRepo"],
  ["base-sepolia", "evmRepo"],
  ["bsc", "bsc-evmRepo"],
  ["arbitrum", "arbitrum-evmRepo"],
  ["arbitrum-sepolia", "arbitrum-evmRepo"],
  ["moonbeam", "moonbeam-evmRepo"],
  ["polygon", "polygon-evmRepo"],
  ["ethereum-holesky", "evmRepo"],
]);
const SUI_CHAIN = "sui";

const POOL_STRATEGY = "weighted";

export class RepositoriesBuilder {
  private cfg: Config;
  private snsClient?: SNSClient;
  private repositories = new Map();

  constructor(cfg: Config) {
    this.cfg = cfg;
    this.build();
  }

  private build(): void {
    this.snsClient = this.createSnsClient();
    this.repositories.set("sns", new SnsEventRepository(this.snsClient, this.cfg.sns));

    this.repositories.set("metrics", new PromStatRepository());

    this.cfg.metadata?.dir &&
      this.repositories.set("metadata", new FileMetadataRepository(this.cfg.metadata.dir));

    this.cfg.enabledPlatforms.forEach((chain) => {
      if (chain === SOLANA_CHAIN) {
        const solanaProviderPool = providerPoolSupplier(
          this.cfg.chains[chain].rpcs.map((url) => ({ url })),
          (rpcCfg: RpcConfig) =>
            new InstrumentedConnection(rpcCfg.url, {
              commitment: rpcCfg.commitment || "confirmed",
            }),
          POOL_STRATEGY
        );

        const cfg = this.cfg.chains[chain];
        const solanaSlotRepository = new RateLimitedSolanaSlotRepository(
          new Web3SolanaSlotRepository(solanaProviderPool),
          cfg.rateLimit
        );
        this.repositories.set("solana-slotRepo", solanaSlotRepository);
      }

      if (chain === EVM_CHAIN) {
        const pools = this.createEvmProviderPools();
        const repoCfg: EvmJsonRPCBlockRepositoryCfg = {
          chains: this.cfg.chains,
          environment: this.cfg.environment,
        };

        const moonbeamRepository = new RateLimitedEvmJsonRPCBlockRepository(
          new MoonbeamEvmJsonRPCBlockRepository(repoCfg, pools)
        );
        const arbitrumRepository = new RateLimitedEvmJsonRPCBlockRepository(
          new ArbitrumEvmJsonRPCBlockRepository(repoCfg, pools, this.getMetadataRepository())
        );
        const polygonRepository = new RateLimitedEvmJsonRPCBlockRepository(
          new PolygonJsonRPCBlockRepository(repoCfg, pools)
        );
        const bscRepository = new RateLimitedEvmJsonRPCBlockRepository(
          new BscEvmJsonRPCBlockRepository(repoCfg, pools)
        );
        const evmRepository = new RateLimitedEvmJsonRPCBlockRepository(
          new EvmJsonRPCBlockRepository(repoCfg, pools)
        );

        this.repositories.set("moonbeam-evmRepo", moonbeamRepository);
        this.repositories.set("arbitrum-evmRepo", arbitrumRepository);
        this.repositories.set("polygon-evmRepo", polygonRepository);
        this.repositories.set("bsc-evmRepo", bscRepository);
        this.repositories.set("evmRepo", evmRepository);
      }

      if (chain === SUI_CHAIN) {
        const suiProviderPool = providerPoolSupplier(
          this.cfg.chains[chain].rpcs.map((url) => ({ url })),
          (rpcCfg: RpcConfig) => new InstrumentedSuiClient(rpcCfg.url, 2000),
          POOL_STRATEGY
        );

        const suiRepository = new RateLimitedSuiJsonRPCBlockRepository(
          new SuiJsonRPCBlockRepository(suiProviderPool)
        );

        this.repositories.set("sui-repo", suiRepository);
      }
    });

    this.repositories.set(
      "jobs",
      new StaticJobRepository(
        this.cfg.environment,
        this.cfg.jobs.dir,
        this.cfg.dryRun,
        (chain: string) => this.getEvmBlockRepository(chain),
        {
          metadataRepo: this.getMetadataRepository(),
          statsRepo: this.getStatsRepository(),
          snsRepo: this.getSnsEventRepository(),
          solanaSlotRepo: this.getSolanaSlotRepository(),
          suiRepo: this.getSuiRepository(),
        }
      )
    );
  }

  public getEvmBlockRepository(chain: string): EvmJsonRPCBlockRepository {
    const instanceRepoName = EVM_CHAINS.get(chain);
    if (!instanceRepoName) throw new Error(`Chain ${chain} not supported`);
    return this.getRepo(instanceRepoName);
  }

  public getSnsEventRepository(): SnsEventRepository {
    return this.getRepo("sns");
  }

  public getMetadataRepository(): FileMetadataRepository {
    return this.getRepo("metadata");
  }

  public getStatsRepository(): PromStatRepository {
    return this.getRepo("metrics");
  }

  public getJobsRepository(): JobRepository {
    return this.getRepo("jobs");
  }

  public getSolanaSlotRepository(): Web3SolanaSlotRepository {
    return this.getRepo("solana-slotRepo");
  }

  public getSuiRepository(): SuiRepository {
    return this.getRepo("sui-repo");
  }

  private getRepo(name: string): any {
    const repo = this.repositories.get(name);
    if (!repo) throw new Error(`No repository ${name}`);

    return repo;
  }

  public close(): void {
    this.snsClient?.destroy();
  }

  private createSnsClient(): SNSClient {
    const snsCfg: SNSClientConfig = { region: this.cfg.sns.region };
    if (this.cfg.sns.credentials) {
      snsCfg.credentials = {
        accessKeyId: this.cfg.sns.credentials.accessKeyId,
        secretAccessKey: this.cfg.sns.credentials.secretAccessKey,
      };
      snsCfg.endpoint = this.cfg.sns.credentials.url;
    }

    return new SNSClient(snsCfg);
  }

  private createEvmProviderPools(): ProviderPoolMap {
    let pools: ProviderPoolMap = {};
    for (const chain in this.cfg.chains) {
      const cfg = this.cfg.chains[chain];
      pools[chain] = providerPoolSupplier(
        cfg.rpcs.map((url) => ({ url })),
        (rpcCfg: RpcConfig) => this.createHttpClient(chain, rpcCfg.url),
        POOL_STRATEGY
      );
    }
    return pools;
  }

  private createHttpClient(chain: string, url: string): InstrumentedHttpProvider {
    return new InstrumentedHttpProvider({
      chain,
      url,
      retries: 3,
      timeout: 1_0000,
      initialDelay: 1_000,
      maxDelay: 30_000,
    });
  }
}