import { singleton } from './decorator/singleton.decorator'
import Web3 from 'web3'
import {
  recoverTypedSignature,
  signTypedData,
  SignTypedDataVersion,
} from '@metamask/eth-sig-util'
import 'whatwg-fetch'
import { AllChains } from './data/allchain'
import {
  createWalletEvents,
  WALLET_ACCOUNT_CHANGE,
  WALLET_CHAIN_CHANGE,
  WALLET_TOKEN_TYPE_CHANGE,
} from './common/WalletEvent'
import { ERC20Standard } from './standards/ERC20Standard'
import { ERC721Standard } from './standards/ERC721Standard'
import { IAccount, INFT, initAccount, initNFT } from './data/DataModel'
import {
  checkPassword,
  loadData,
  saveData,
  savePassword,
} from './manage/DataManage'
import { WALLET_STORAGE_KEY_NAME } from './config/constants'
import { DEFALUT_TOKENS } from './config/chain_config'
import {
  newAccount,
  newMnemonic,
  restoreWalletByMnemonic,
} from './manage/WalletManage'
import { buildLoginSignMsg, signLogin } from './util/sign.util'
import { JazzIcon } from './comp/JazzIcon'
import { ERC1155Standard } from './standards/ERC1155Standard'
import { ZWalletConnect } from './comp/ZWalletConnect'
import { getJCErc721Info, getTypeByAddress, UNKNOW } from './util/chain.util'


var global =
  (typeof globalThis !== 'undefined' && globalThis) ||
  (typeof self !== 'undefined' && self) ||
  (typeof global !== 'undefined' && global) ||
  {}



declare global {
  interface Window {
    jc: {
      wallet: JCWallet
    }
    jcwallet: JCWallet
    ethSigUtil: any
    cc: any
    Stream: any
  }
}

export interface IChainData {
  name: string
  type: string
  rpc: string
  id: number
  symbol: string
  explorerurl: string
  decimals?: number
}

export enum WalletType {
  INTERNAL = 0,
  THIRD_PATH = 1,
}
@singleton
export default class JCWallet {
  web3: Web3 = null
  private wallet: any = null
  private password: string = '111111'
  private chainSet: Set<number> = new Set()
  private chainMap: Map<number, IChainData> = new Map()
  private _currentChain: IChainData
  public erc20Standard: ERC20Standard
  public erc721Standard: ERC721Standard
  public erc1155Standard: ERC1155Standard
  public wConnect: ZWalletConnect
  public mainHandlers = createWalletEvents()
  public data: IAccount[] = []
  public iconType = 'jazz'
  private accountIndex = 0
  private walletType: WalletType = WalletType.INTERNAL
  private rpcUrl: string = ''
  public rpc: any = {}


  constructor({ type, chain, password }: { type: number; chain: number, password: string }) {
    this.walletType = type
    chain = chain || 322
    let data = AllChains.find((o) => o.id === chain)
    if (!data) {
      throw new Error('no current chain data')
    }
    this._currentChain = data;
    this.rpcUrl = data.rpc;
    console.log(`rpc url: ${this.rpcUrl}`);
    if (this.walletType === WalletType.INTERNAL) {
      if (!password) {
        throw new Error('need password')
      }
      if (!checkPassword(password)) {
        throw new Error('password error')
      }
      this.password = password
      savePassword(password)
      this.initInternalWallet();
    }
    this.init({ chains: [322, 80001], password: this.password })
    window.jc = { wallet: this }
  }

  private initInternalWallet() {
    var start = Date.now()
    this.web3 = new Web3(this.rpcUrl)
    console.log(`init web3 cost: ${(Date.now() - start) / 1000}`)
    this.erc20Standard = new ERC20Standard(this.web3)
    this.erc721Standard = new ERC721Standard(this.web3)
    this.erc1155Standard = new ERC1155Standard(this.web3)
    
    start = Date.now()
    this.wallet = this.web3.eth.accounts.wallet.load(
      this.password,
      WALLET_STORAGE_KEY_NAME,
    )
    console.log(`load wallet cost: ${(Date.now() - start) / 1000}`)
    start = Date.now()
    this.data = loadData()
    console.log(`init wallet ext data cost: ${(Date.now() - start) / 1000}`)
    
  }
  /**
   * init wallet connect
   * @returns 
   */
  public async initThirdPartyWallet() {
    return new Promise((resolve, reject) => {
      for (const d of AllChains) {
        const id = d.id
        this.rpc[id] = d.rpc
      }
  
      this.wConnect = new ZWalletConnect(this.rpc)
      // return this.wConnect.connect();
      this.wConnect.connect()
        .then(()=>{
          resolve && resolve('')
        })
        .catch((err: Error)=>{
          console.log('initThirdPartyWallet error: ' + err);
          reject && reject(err.message);
        })
    })
    
  }
  /**
   * init chain data
   * create local wallet data if there is no local wallet data
   * @returns 
   */
  private init({ chains, password }: { chains: number[]; password: string }) {
    for (let chain of chains) {
      this.chainSet.add(chain)
      if (!this.chainMap.has(chain)) {
        let data = AllChains.find((o) => o.id === chain)
        if (data) {
          this.chainMap.set(chain, data)
          if (!this._currentChain) {
            this._currentChain = data
          }
        }
      }
    }
    if (this.walletType !== WalletType.INTERNAL) {
      return;
    }
    if (!this.wallet || this.wallet.length === 0) {
      // this.createAccount();
      this.newWallet(password)
    }
  }

  public newWallet(password: string) {
    this.password = password
    newMnemonic(this.password)
    this.createAccount()
  }

  public restoreFromMnemonic(mnemonic: string, password: string) {
    this.password = password
    this.wallet.clear()
    restoreWalletByMnemonic(mnemonic, this.password)
    return this.createAccount()
  }

  get currentChain() {
    return this._currentChain
  }

  updateCurrentChain(chainId: number) {
    return new Promise((resolve, reject) => {
      if (this.walletType === WalletType.INTERNAL) {
        const chainData = this.chainMap.get(chainId)
        this._currentChain = chainData
        this.web3.eth.setProvider(chainData.rpc)
        this.mainHandlers.emit(WALLET_CHAIN_CHANGE, chainData)
        this.updateListType('tokens')
        resolve && resolve(this.currentChain);
      } else {
        console.log('third parth wallet change chain: ' + chainId)
        const chainData = this.chainMap.get(chainId)
        this.wConnect.addOrChangeChain(chainData)
          .then(() => {
            resolve && resolve(chainData);
          })
          .catch(err=>{
            reject && reject(err);
          })
          setTimeout(()=>{
            // @ts-ignore
            jumpToWallet()
          }, 500)
      }
    })
    
  }

  updateListType(type: string) {
    this.mainHandlers.emit(WALLET_TOKEN_TYPE_CHANGE, type)
  }

  get chainList() {
    return [...this.chainMap.values()]
  }

  public saveLocal() {}

  public loadLocal() {}

  public saveRemote() {}

  public loadRemote() {}

  public currentAccount() {
    if (this.walletType === WalletType.INTERNAL) {
      return this.wallet[this.accountIndex]
    } else {
      return this.wConnect.accounts[0]
    }
  }

  get currentAccountData() {
    let address = this.currentAccount().address
    const chain = this.currentChain.id
    let data = this.data.find((o) => o.address === address)
    if (!data) {
      throw new Error('account data not found')
    }

    if (!data.tokenData[chain]) {
      let tokens = DEFALUT_TOKENS[chain]
      data.tokenData[chain] = {
        tokens,
        heros: [],
        weapons: [],
        chips: [],
      }
    }

    saveData(this.data)
    return data
  }

  get accounts() {
    return this.data
  }

  public createAccount() {
    // let account = this.web3.eth.accounts.create()
    const index = this.getMaxIdexOfType(0)
    const accountNew = newAccount(this.password, index)
    const account = this.wallet.add(accountNew)
    this.wallet.save(this.password, WALLET_STORAGE_KEY_NAME)
    const chain = this.currentChain.id
    let data = this.data.find((o) => o.address === account.address)
    if (!data) {
      const nickname = `Account ${index + 1}`
      data = initAccount({
        address: account.address,
        chain,
        nickname,
        type: 0,
        index,
      })
      this.data.push(data)
      saveData(this.data)
    }

    this.accountIndex = this.wallet.length - 1
    this.mainHandlers.emit(WALLET_ACCOUNT_CHANGE, account.address)
    return account.address
  }

  public importAccount(privateKey: string) {
    const account = this.wallet.add(privateKey)
    const chain = this.currentChain.id
    let data = this.data.find((o) => o.address === account.address)
    if (!data) {
      const index = this.getMaxIdexOfType(1)
      const nickname = `Imported ${index + 1}`
      data = initAccount({
        address: account.address,
        chain,
        nickname,
        type: 1,
        index,
      })
      this.data.push(data)
      saveData(this.data)
    }
    this.web3.eth.accounts.wallet.save(this.password, WALLET_STORAGE_KEY_NAME)
    this.accountIndex = this.wallet.length - 1
    this.mainHandlers.emit(WALLET_ACCOUNT_CHANGE, account.address)
    return account.address
  }

  private getMaxIdexOfType(type: number) {
    let maxIdx = -1
    for (let i = 0, l = this.data.length; i < l; i++) {
      if (this.data[i].type !== type) {
        continue
      }
      maxIdx = Math.max(this.data[i].index, maxIdx)
    }
    return maxIdx + 1
  }
  private getAccountByAddress(address: string) {
    let account
    let index = 0
    for (let i = 0, l = this.wallet.length; i < l; i++) {
      if (this.wallet[i].address === address) {
        account = this.wallet[i]
        index = i
        break
      }
    }
    return { account, index }
  }

  public selectAccount(address: string) {
    const { index } = this.getAccountByAddress(address)
    if (index !== this.accountIndex && index < this.wallet.length) {
      this.accountIndex = index
      this.mainHandlers.emit(WALLET_ACCOUNT_CHANGE, this.wallet[index].address)
    }
    return address
  }

  public async sendEth(to: string, amount: number | string) {
    let from = this.currentAccount().address
    const amountToSend = this.web3.utils.toWei(amount + '', 'ether')
    let gas = await this.web3.eth.estimateGas({
      from,
      to,
      value: amountToSend,
    })
    this.web3.eth.sendTransaction({ from, to, gas, value: amountToSend })
  }

  public async getBalance(address?: string) {
    console.log('get balance with address: ', address)
    if (!address) {
      let accountData = this.wallet[this.accountIndex]
      if (!accountData) {
        throw new Error('no account found')
      }
      address = accountData.address
    }

    let balance = await this.web3.eth.getBalance(address)
    return balance
  }

  public signTypedDataV4(signObj: any) {
    const account = this.currentAccount()
    return signTypedData({
      data: signObj,
      privateKey: Buffer.from(account.privateKey.replace('0x', ''), 'hex'),
      version: SignTypedDataVersion.V4,
    })
  }

  public loginSign(nonce: string, tips: string, address?: string) {
    return new Promise((resolve, reject) => {
      const account = this.currentAccount()
      if (this.walletType === WalletType.INTERNAL) {
        const sig = signLogin(nonce, tips, account.privateKey)
        resolve && resolve(sig);
      } else {
        const signObj = buildLoginSignMsg(nonce, tips);
        this.wConnect.signData(signObj, account)
          .then(sig => {
            resolve && resolve(sig);
          })
          .catch(err=> {
            reject && reject(err);
          })
        setTimeout(()=>{
          // @ts-ignore
          jumpToWallet()
        }, 500)
        
      }
    })
  }

  public recoverTypedSignatureV4(signObj: any, signature: string) {
    return recoverTypedSignature({
      data: signObj,
      signature,
      version: SignTypedDataVersion.V4,
    })
  }

  public generateIconData(msg: string, diameter: number) {
    let icon = new JazzIcon()
    return icon.init(msg, diameter)
  }

  public async erc20Info(address: string) {
    let symbol = await this.erc20Standard.getTokenSymbol(address)
    let decimal = await this.erc20Standard.getTokenDecimals(address)
    return { symbol, decimal }
  }

  public async erc20Balance(address: string, account?: string) {
    if (!account) {
      account = this.currentAccount().address
    }
    let result = await this.erc20Standard.getBalanceOf(address, account)
    return result
  }

  public async sendErc20(address: string, to: string, amount: string) {
    let from = this.currentAccount().address
    let result = await this.erc20Standard.transfer({
      address,
      from,
      to,
      amount,
    })
    return result
  }

  private async updateTokenInfo(data: INFT, address: string, index: number, account: string) {
    const tokenId = await this.wallet.erc721Standard.getCollectibleTokenId(
      address,
      account,
      index
    )
    const info = await getJCErc721Info(tokenId);
    data.tokenId = tokenId;
    data.name = info.name;
    data.desc = info.description;
    data.image = info.image;
    data.last = Date.now();
  }

  public async nftInfo(address: string, index: number, account: string, refresh: boolean) {
    account = account || this.currentAccount().address
    const chain = this.wallet.currentChain.id
    const { categor, type } = getTypeByAddress(chain, address);
    let nfts = [];
    if (categor !== UNKNOW) {
      nfts = this.currentAccountData.tokenData[chain][`${categor}s`]
    }
    let needRefresh = !(nfts.length > index && nfts[index].tokenId && !refresh);
    if (needRefresh) {
      this.updateTokenInfo(nfts[index], address, index, account);
      saveData(this.data);
    }
    return nfts[index];
  }

  public async nftList(address: string, account?: string) {
    account = account || this.currentAccount().address
    const chain = this.wallet.currentChain.id
    const amount = await this.erc721Standard.getBalance(address, account)
    const { categor, type }= getTypeByAddress(chain, address);
    let nfts = [];
    if (categor !== UNKNOW) {
      nfts = this.currentAccountData.tokenData[chain][`${categor}s`]
    }
    let refresh = false;
    if (nfts.length !== amount) {
      refresh = true;
    }
    if (refresh) {
      nfts.length = 0;
      for (let i = 0; i < amount; i++) {
        const nftData = initNFT(address, i, type)
        nfts.push(nftData)
      }
    }
    return nfts;
  }

  public async sendNFT(address: string, to: string, tokenId: string) {
    let from = this.currentAccount().address
    let result = await this.erc721Standard.transfer({
      address,
      from,
      to,
      tokenId,
    })
    return result
  }

  public async erc1155Info(address: string) {

  }

  public async erc1155List(address: string, account?: string) {
    if (!account) {
      account = this.currentAccount().address
    }
  }

  public async sendErc1155() {

  }
}

// window.jc = window.jc || {wallet: new JCWallet()};

export * from './common/WalletEvent'
export * from './common/ZError'
export * from './config/chain_config'
export * from './util/number.util'
export * from './util/wallet.util'
export * from './data/DataModel'
export * from './lib/WalletConnect'