import { matches, types as T } from "../deps.ts";

const { shape, boolean, arrayOf, string, dictionary, any } = matches;

const bitcoindMatcher = shape({
  "rpc": shape({
    "enable": boolean,
    "username": string,
    "password": string,
  }, ["enable", "username", "password"]),
  "advanced": shape({
    "peers": shape({
      "listen": boolean,
    }, ["listen"]),
  }, ["peers"]),
}, ["rpc", "advanced"]);

const checkBitcoind: T.ExpectedExports.dependencyConfig["check"] = async (
  effects,
  input,
) => {
  const res = bitcoindMatcher.test(input);
  if (!res) return { error: "Bitcoin Core RPC settings are missing." };
  if (!input.rpc.enable) {
    return { error: "Bitcoin Core RPC must be enabled." };
  }
  return { result: null };
};

const autoBitcoind: T.ExpectedExports.dependencyConfig["autoConfigure"] =
  async (effects, input) => {
    input.rpc.enable = true;
    return { result: input };
  };

export const dependencies: T.ExpectedExports.dependencies = {
  "bitcoind": {
    check: checkBitcoind,
    autoConfigure: autoBitcoind,
  },
  "bitcoind-testnet": {
    check: checkBitcoind,
    autoConfigure: autoBitcoind,
  },
};