Contracts.js.map

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IConfig from './IConfig';\nimport { DavID, BigInteger, ID, ContractsArtifacts } from './common-types';\nimport Web3 = require('web3');\nimport { ContractTypes } from './common-enums';\nimport Contract from 'web3/eth/contract';\nimport { EventLog, TransactionReceipt } from 'web3/types';\nimport { Observable } from 'rxjs';\nimport IPrice from './IPrice';\nimport sdkLogger from './sdkLogger';\n\nlet contracts: ContractsArtifacts = {\n  Identity: require('./contracts/Identity'),\n  DAVToken: require('./contracts/DAVToken'),\n  BasicMission: require('./contracts/BasicMission'),\n};\n\nconst REGISTRATION_REQUEST_HASH = new Web3().utils.sha3(\n  'DAV Identity Registration',\n);\nconst TOKEN_AMOUNT = '1500000000000000000'; // TODO: TOKEN_AMOUNT need to be set by basicMission contract.\n\ninterface IContract {\n  contract: Contract;\n  contractAddress: string;\n  abi: any[];\n}\n\nexport default class Contracts {\n  private static initWeb3(config: IConfig): Web3 {\n    return new Web3(new Web3.providers.HttpProvider(config.ethNodeUrl));\n  }\n\n  private static getContract(\n    contractType: ContractTypes,\n    web3: Web3,\n    config: IConfig,\n  ): IContract {\n    if (config.contracts) {\n      contracts = config.contracts;\n    }\n    const abi = contracts[contractType].abi;\n    const contractAddress =\n      contracts[contractType].networks[config.blockchainType].address;\n    const contract = new web3.eth.Contract(abi, contractAddress);\n    return { abi, contractAddress, contract };\n  }\n\n  private static sendSignedTransaction(\n    web3: Web3,\n    rawTransaction: string,\n  ): Promise<TransactionReceipt> {\n    return new Promise((resolve, reject) => {\n      const transaction = web3.eth.sendSignedTransaction(rawTransaction);\n      transaction.once('receipt', receipt => {\n        sdkLogger(`Web3 transaction succeeded: ${JSON.stringify(receipt)}`);\n        resolve(receipt);\n      });\n      transaction.once('transactionHash', hash => {\n        sdkLogger(`Web3 transaction sent: ${hash}`);\n      });\n      transaction.on('error', err => {\n        sdkLogger(`Web3 transaction failed: ${JSON.stringify(err)}`);\n        reject(err);\n      });\n    });\n  }\n\n  private static async checkContractPastEvents(\n    contract: Contract /* , filterParam: string */,\n  ): Promise<EventLog[]> {\n    // TODO: Filter getPastEvents by sellerId or by missionId.\n    const event = await contract.getPastEvents('allEvents');\n    return event;\n  }\n\n  private static toSafeGasLimit(gasAmount: number) {\n    return Math.min(gasAmount + 100, 4000000);\n  }\n\n  private static calculatePrice(price: IPrice[]) {\n    return '150000000000000000';\n  }\n\n  public static generateMissionId(config: IConfig): string {\n    const web3 = Contracts.initWeb3(config);\n    const { address } = web3.eth.accounts.create();\n    return address;\n  }\n\n  public static async isIdentityRegistered(\n    davId: DavID,\n    config: IConfig,\n  ): Promise<boolean> {\n    const web3 = Contracts.initWeb3(config);\n    const { contract } = Contracts.getContract(\n      ContractTypes.identity,\n      web3,\n      config,\n    );\n    const receipt = await contract.methods.isRegistered(davId).call();\n    return receipt;\n  }\n\n  public static async registerIdentity(\n    davId: DavID,\n    identityPrivateKey: string,\n    walletAddress: string,\n    walletPrivateKey: string,\n    config: IConfig,\n  ): Promise<string> {\n    const isAlreadyRegistered = await Contracts.isIdentityRegistered(\n      davId,\n      config,\n    );\n    if (isAlreadyRegistered) {\n      return 'ALREADY_REGISTERED';\n    }\n    const web3 = Contracts.initWeb3(config);\n    const { contract, contractAddress } = Contracts.getContract(\n      ContractTypes.identity,\n      web3,\n      config,\n    );\n    const { sign } = web3.eth.accounts.privateKeyToAccount(identityPrivateKey);\n    const { v, r, s } = sign(REGISTRATION_REQUEST_HASH);\n    const { encodeABI, estimateGas } = await contract.methods.register(\n      davId,\n      v,\n      r,\n      s,\n    );\n    const tx = {\n      data: encodeABI(),\n      to: contractAddress,\n      from: walletAddress,\n      gas: Contracts.toSafeGasLimit(await estimateGas({ from: walletAddress })),\n      gasPrice: await web3.eth.getGasPrice(),\n    };\n    const { rawTransaction } = await web3.eth.accounts.signTransaction(\n      tx,\n      walletPrivateKey,\n    );\n    const transactionReceipt = await Contracts.sendSignedTransaction(\n      web3,\n      rawTransaction,\n    );\n    return transactionReceipt.transactionHash;\n  }\n\n  public static async approveMission(\n    davId: DavID,\n    walletPrivateKey: string,\n    config: IConfig,\n  ): Promise<TransactionReceipt> {\n    const web3 = Contracts.initWeb3(config);\n    const { contract, contractAddress } = Contracts.getContract(\n      ContractTypes.davToken,\n      web3,\n      config,\n    );\n    const missionContract = Contracts.getContract(\n      ContractTypes.basicMission,\n      web3,\n      config,\n    );\n    const { encodeABI, estimateGas } = await contract.methods.approve(\n      missionContract.contractAddress,\n      TOKEN_AMOUNT,\n    );\n    const tx = {\n      data: encodeABI(),\n      to: contractAddress,\n      from: davId,\n      gas: Contracts.toSafeGasLimit(\n        await estimateGas({ from: davId, to: contractAddress }),\n      ),\n      gasPrice: await web3.eth.getGasPrice(),\n    };\n    const { rawTransaction } = await web3.eth.accounts.signTransaction(\n      tx,\n      walletPrivateKey,\n    );\n    const transactionReceipt = await Contracts.sendSignedTransaction(\n      web3,\n      rawTransaction,\n    );\n    return transactionReceipt;\n  }\n\n  public static async startMission(\n    missionId: ID,\n    davId: DavID,\n    walletPrivateKey: string,\n    vehicleId: DavID,\n    price: IPrice[],\n    config: IConfig,\n  ): Promise<TransactionReceipt> {\n    const fullPrice = Contracts.calculatePrice(price);\n    const web3 = Contracts.initWeb3(config);\n    const { contract, contractAddress } = Contracts.getContract(\n      ContractTypes.basicMission,\n      web3,\n      config,\n    );\n    const { encodeABI, estimateGas } = await contract.methods.create(\n      missionId,\n      vehicleId,\n      davId,\n      TOKEN_AMOUNT,\n    );\n    const tx = {\n      data: encodeABI(),\n      to: contractAddress,\n      from: davId,\n      gas: Contracts.toSafeGasLimit(\n        await estimateGas({\n          from: davId,\n          to: contractAddress,\n          value: fullPrice,\n        }),\n      ),\n      value: fullPrice,\n      gasPrice: await web3.eth.getGasPrice(),\n    };\n    const { rawTransaction } = await web3.eth.accounts.signTransaction(\n      tx,\n      walletPrivateKey,\n    );\n    const transactionReceipt = await Contracts.sendSignedTransaction(\n      web3,\n      rawTransaction,\n    );\n    return transactionReceipt;\n  }\n\n  public static async finalizeMission(\n    missionId: ID,\n    davId: DavID,\n    walletPrivateKey: string,\n    config: IConfig,\n  ): Promise<TransactionReceipt> {\n    const web3 = Contracts.initWeb3(config);\n    const { contract, contractAddress } = Contracts.getContract(\n      ContractTypes.basicMission,\n      web3,\n      config,\n    );\n    const { encodeABI, estimateGas } = await contract.methods.fulfilled(\n      missionId,\n    );\n    const tx = {\n      data: encodeABI(),\n      to: contractAddress,\n      from: davId,\n      gas: Contracts.toSafeGasLimit(await estimateGas({ from: davId })),\n      gasPrice: await web3.eth.getGasPrice(),\n    };\n    const { rawTransaction } = await web3.eth.accounts.signTransaction(\n      tx,\n      walletPrivateKey,\n    );\n    const transactionReceipt = await Contracts.sendSignedTransaction(\n      web3,\n      rawTransaction,\n    );\n    return transactionReceipt;\n  }\n\n  public static watchContract(\n    davId: string,\n    contractType: ContractTypes,\n    config: IConfig,\n  ): Observable<EventLog> {\n    const web3 = Contracts.initWeb3(config);\n    const { contract } = Contracts.getContract(contractType, web3, config);\n    let lastBlock = 0;\n    let lastTransactionIndex = 0;\n    const events = Observable.interval(2000)\n      .map(() => Contracts.checkContractPastEvents(contract /* , davId */))\n      .map(promise => Observable.fromPromise(promise))\n      .map(eventsObservable => eventsObservable.mergeAll())\n      .map(eventsArray => Observable.from(eventsArray))\n      .mergeAll()\n      .filter(\n        event =>\n          event.blockNumber > lastBlock ||\n          (event.blockNumber === lastBlock &&\n            event.transactionIndex > lastTransactionIndex),\n      )\n      .do(event => {\n        lastBlock = event.blockNumber;\n        lastTransactionIndex = event.transactionIndex;\n      });\n    return events;\n  }\n}\n"]}