import BigNumber from "bignumber.js";
import TokenInfoJSON from "../../tests/TokenTestInfo.json";
import { ChainId } from "../constants";
import { fetchPrices } from "./fetchers";

import { Token } from "./Token";
import { TokenAmount } from "./TokenAmount";

import { expect } from "chai";
import "mocha";

describe("Token generation from address", () => {
  const generated: Token[] = TokenInfoJSON.tokens.map(
    (el) => new Token(el.chainId, el.address)
  );
  const expected: Token[] = TokenInfoJSON.tokens.map(
    (el) => new Token(el.chainId, el.address, el.decimals, el.symbol, el.name)
  );

  before(async () => {
    await Promise.all(generated.map((token) => token.loadDetails()));
  });

  expected.forEach((expToken, i) =>
    it(`Correctly creates token object for address ${expToken.address}`, () => {
      const generatedToken = generated[i];
      expect(generatedToken.address).equal(expToken.address);
      expect(generatedToken.chainId).equal(expToken.chainId);
      expect(generatedToken.decimals).equal(expToken.decimals);
      expect(generatedToken.name).equal(expToken.name);
      expect(generatedToken.symbol).equal(expToken.symbol);
    })
  );
});

describe("Token equality", () => {
  const addressA = "0x00400FcbF0816bebB94654259de7273f4A05c762";
  const addressB = "0x00Be915B9dCf56a3CBE739D9B9c202ca692409EC";
  it("Returns true if tokens are same object", () => {
    const t1 = new Token(ChainId.Celo, addressA);
    expect(t1.equals(t1)).to.be.true;
  });

  it("Returns true if tokens are equal", () => {
    const t1 = new Token(ChainId.Celo, addressA);
    const t2 = new Token(ChainId.Celo, addressA);
    expect(t1.equals(t2)).to.be.true;
  });

  it("Returns false if tokens are not equal", () => {
    const t1 = new Token(ChainId.Celo, addressA);
    const t2 = new Token(ChainId.Celo, addressB);
    expect(t1.equals(t2)).to.be.false;
  });
});

// 0x73a210637f6F6B7005512677Ba6B3C96bb4AA44B
describe("Token sorting order", () => {
  const addressA = "0x00400FcbF0816bebB94654259de7273f4A05c762";
  const addressB = "0x73a210637f6F6B7005512677Ba6B3C96bb4AA44B";

  //   it("Errors if ChainIds are different", () => {
  //     const t1 = new Token(ChainId.Celo, addressA);
  //     const t2 = new Token(ChainId.Alfajores, addressB);
  //     expect(t1.sortsBefore(t2)).toThrow();
  //   });

  //   it("Throws error if address is the same", () => {
  //     const t1 = new Token(ChainId.Celo, addressA);
  //     const t2 = new Token(ChainId.Celo, addressA);
  //     expect(t1.sortsBefore(t2)).toThrowError();
  //   });

  it("Returns true if t1 has a lower address than t2", () => {
    const t1 = new Token(ChainId.Celo, addressA);
    const t2 = new Token(ChainId.Celo, addressB);
    expect(t1.sortsBefore(t2)).to.be.true;
  });

  it("Returns false if t1 has a higher address than t2", () => {
    const t1 = new Token(ChainId.Celo, addressB);
    const t2 = new Token(ChainId.Celo, addressA);
    expect(t1.sortsBefore(t2));
  });
});

describe("Price fetcher", () => {
  it("Fetches prices", async () => {
    const res = await fetchPrices(
      process.env.API_KEY ?? "",
      ChainId.Alfajores,
      "brl"
    );
    expect(Object.keys(res).length).to.be.greaterThan(0);
  }).timeout(30 * 1000);
});

describe("Token format", () => {
  const token = new Token(
    ChainId.Alfajores,
    "0x00400FcbF0816bebB94654259de7273f4A05c762",
    18
  );
  const tokenAmountA = new TokenAmount(token, new BigNumber("1.11e+18"));
  const tokenAmountB = new TokenAmount(token, new BigNumber("1e+18"));
  it("formats fixed(2) correctly", () => {
    const expected = "1.11";
    const recieved = tokenAmountA.toFixed(2);
    expect(recieved).equal(expected);
  });
  it("formats fixed(3) correctly", () => {
    const expected = "1.110";
    const recieved = tokenAmountA.toFixed(3);
    expect(recieved).equal(expected);
  });

  it("pads right correctly", () => {
    const expected = "1.00";
    const recieved = tokenAmountB.toFixed(2);
    expect(recieved).equal(expected);
  });
});

describe("Token format", () => {
  const token = new Token(
    ChainId.Alfajores,
    "0x00400FcbF0816bebB94654259de7273f4A05c762",
    18
  );
  const tokenAmountA = new TokenAmount(token, new BigNumber("1.11e+18"));
  const tokenAmountB = new TokenAmount(token, new BigNumber("1e+18"));
  it("formats fixed(2) correctly", () => {
    const expected = "1.11";
    const recieved = tokenAmountA.toFixed(2);
    expect(recieved).equal(expected);
  });
  it("formats fixed(3) correctly", () => {
    const expected = "1.110";
    const recieved = tokenAmountA.toFixed(3);
    expect(recieved).equal(expected);
  });

  it("pads right correctly", () => {
    const expected = "1.00";
    const recieved = tokenAmountB.toFixed(2);
    expect(recieved).equal(expected);
  });
});