import fs from "fs";
import path from "path";
import commander from "commander";
import { ProviderRpcClient } from "everscale-inpage-provider";
import type { ConnectionData, Ed25519KeyPair } from "everscale-standalone-client";
import { ConnectionProperties, NETWORK_PRESETS } from "everscale-standalone-client/nodejs";
import { Giver } from "../factory";
import Joi from "joi";
import { MessageProperties } from "everscale-standalone-client/client";
import * as nt from "nekoton-wasm";
import semver from "semver/preload";

export enum ConfigState {
  EXTERNAL,
  INTERNAL,
}
export const LOCKLIFT_NETWORK_NAME = "locklift";
type LockliftNetworkName = typeof LOCKLIFT_NETWORK_NAME;
export interface LockliftConfig<T extends ConfigState = ConfigState.EXTERNAL> {
  compiler: {
    includesPath?: string;
    externalContracts?: ExternalContracts;
    externalContractsArtifacts?: ExternalContracts;
    compilerParams?: Array<string>;
  } & ({ path: string } | { version: string });

  linker?:
    | {
        path: string;
        lib: string;
      }
    | { version: string };

  networks: Networks<T>;
  mocha: Mocha.MochaOptions & {
    tsconfig?: string;
  };
}

export type KeysConfig = {
  path?: string;
  phrase?: string;
  amount: number;
};
export type ForkContractsConfig = Array<
  {
    abi: {
      path: string;
    };
  } & ({ codeHash: string | { deriveAddress: string } } | { address: string })
>;
export type ForkSource = { type: "live"; connection: ConnectionProperties } | { type: "block"; block: number };
export type Networks<T extends ConfigState = ConfigState.EXTERNAL> = Record<"local" | string, NetworkValue<T>> & {
  [key in LockliftNetworkName]: NetworkValue<T, LockliftNetworkName>;
};
export interface NetworkValue<T extends ConfigState = ConfigState.EXTERNAL, P extends string = ""> {
  giver: T extends ConfigState.EXTERNAL
    ? P extends LockliftNetworkName
      ? GiverConfig | undefined
      : GiverConfig
    : GiverConfig;
  keys: T extends ConfigState.EXTERNAL ? KeysConfig : Required<KeysConfig>;
  connection: T extends ConfigState.EXTERNAL ? ConnectionProperties : ConnectionData;
  fork?: {
    source: ForkSource;
    contracts: ForkContractsConfig;
  };
  blockchainConfig?: "EVER" | "TON" | { custom: string } | undefined;
  clientConfig?: {
    message?: MessageProperties;
    initInput?: any | Promise<any>;
  };
}

export type ExternalContracts = Record<string, Array<string>>;
export type GiverConfig = {
  address: string;
  giverFactory?: (ever: ProviderRpcClient, keyPair: Ed25519KeyPair, address: string) => Giver;
} & ({ key: string } | { phrase: string; accountId: number });

export const JoiConfig = Joi.object<LockliftConfig>({
  compiler: Joi.alternatives([
    Joi.object({
      includesPath: Joi.string().optional(),
      compilerParams: Joi.array().items(Joi.string()).optional(),
      externalContracts: Joi.object().pattern(Joi.string(), Joi.array().items(Joi.string())),
      externalContractsArtifacts: Joi.object().pattern(Joi.string(), Joi.array().items(Joi.string())),
      path: Joi.string(),
    }),
    Joi.object({
      includesPath: Joi.string().optional(),
      compilerParams: Joi.array().items(Joi.string()).optional(),
      externalContracts: Joi.object().pattern(Joi.string(), Joi.array().items(Joi.string())),
      externalContractsArtifacts: Joi.object().pattern(Joi.string(), Joi.array().items(Joi.string())),

      version: Joi.string().required(),
    }),
  ]),
  linker: Joi.when("compiler.version", {
    is: Joi.custom((value, helpers) => {
      if (semver.lte(value, "0.71.0")) {
        return value;
      }
      return helpers.message({ custom: "DUMMY MSG" });
    }),
    then: Joi.alternatives([
      Joi.object({
        path: Joi.string(),
        lib: Joi.string(),
      }),
      Joi.object({
        version: Joi.string(),
      }),
    ]).required(),
    otherwise: Joi.any(),
  }),
  networks: Joi.object().pattern(
    Joi.string(),

    Joi.object({
      giver: Joi.alternatives().conditional(Joi.object({ phrase: Joi.string().required() }).unknown(), {
        then: Joi.object({
          address: Joi.string(),
          giverFactory: Joi.any().optional(),
          phrase: Joi.string(),
          accountId: Joi.number(),
        }),
        otherwise: Joi.object({
          address: Joi.string(),
          giverFactory: Joi.any().optional(),
          key: Joi.string(),
        }),
      }),
      keys: Joi.object({
        path: Joi.string().optional(),
        phrase: Joi.string().optional(),
        amount: Joi.number(),
      }),
      connection: Joi.alternatives([
        ...Object.keys(NETWORK_PRESETS).map(el => el),
        Joi.object({
          id: Joi.number().optional(),
          type: Joi.alternatives(["graphql", "jrpc", "proxy"]),
          group: Joi.string().optional(),
          data: Joi.alternatives().conditional("type", {
            is: "graphql",
            then: Joi.object({
              endpoints: Joi.array().items(Joi.string()),
              local: Joi.boolean().optional(),
              latencyDetectionInterval: Joi.number().optional(),
              maxLatency: Joi.number().optional(),
            }),
            otherwise: Joi.alternatives().conditional("type", {
              is: "jrpc",
              then: Joi.object({
                endpoint: Joi.string(),
              }),
              otherwise: Joi.object({
                connectionFactory: Joi.object().custom((value, helpers) => {
                  return value;
                  // if (value instanceof ConnectionFactory) {
                  //   return value;
                  // }
                  // return helpers.message({"custom": "Invalid proxy connection"});
                }),
              }),
              // otherwise: Joi.object().custom((value, helpers) => {
              //   if (value instanceof ConnectionFactory) {
              //     return value;
              //   }
              //   return helpers.message({"custom": "Invalid proxy connection"});
              // }),
            }),
          }),
        }),
      ]),
      clientConfig: Joi.object({
        message: Joi.object({}).optional().unknown(),
        initInput: Joi.any().optional(),
      }).optional(),

      tracing: Joi.object({
        endpoint: Joi.string(),
      }).optional(),
    }).unknown(),
  ),
  mocha: Joi.object({
    tsconfig: Joi.string().optional(),
  }).unknown(true),
}).unknown();

export function loadConfig(configPath: string): LockliftConfig<ConfigState.INTERNAL> {
  const resolvedConfigPath = path.resolve(process.cwd(), configPath);

  if (!fs.existsSync(resolvedConfigPath)) {
    throw new commander.InvalidOptionArgumentError(`Config at ${configPath} not found!`);
  }

  const configFile = require(resolvedConfigPath);

  const validationResult = JoiConfig.validate(configFile.default);
  if (validationResult.error) {
    if (validationResult.error instanceof Joi.ValidationError) {
      throw new Error(validationResult.error.annotate());
    }
    throw validationResult.error;
  }
  const config = { ...validationResult.value } as unknown as LockliftConfig<ConfigState.INTERNAL>;

  for (const [key, value] of Object.entries(config.networks)) {
    if (value.keys != null) {
      value.keys = {
        ...value.keys,
        phrase: value.keys?.phrase || "maze turn choose industry beauty sweet panther valve double report upset mother",
        path: value.keys.path || "m/44'/396'/0'/0/INDEX",
      };
    }
    if (typeof value.connection === "string") {
      value.connection = getPresetParams(value.connection) || value.connection;
    }

    config.networks[key] = {
      ...value,
      giver: value.giver || {
        address: "0:ece57bcc6c530283becbbd8a3b24d3c5987cdddc3c8b7b33be6e4a6312490415",
        key: "172af540e43a524763dd53b26a066d472a97c4de37d5498170564510608250c3",
      },
    };
  }

  return config as unknown as LockliftConfig<ConfigState.INTERNAL>;
}

const getPresetParams = (preset: string): ConnectionData | undefined => {
  if (isKeyofNetworkPreset(preset)) {
    return NETWORK_PRESETS[preset];
  }
};

const isKeyofNetworkPreset = (preset: string): preset is keyof typeof NETWORK_PRESETS => {
  return Object.keys(NETWORK_PRESETS).find(el => el === preset) !== undefined;
};