git ssb

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const constants = require('./constants.js')
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const U256 = require('./u256.js')
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module.exports = class Environment {
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  constructor (data) {
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    const defaults = {
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      // gas tank
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      gasPrice: 0,
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      gasLimit: 1000000, // The gas limit for the block
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      gasRefund: 0,
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      // call infromation
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      address: new Uint8Array(constants.ADDRESS_SIZE_BYTES),
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      origin: new Uint8Array(constants.ADDRESS_SIZE_BYTES),
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      coinbase: new Uint8Array(constants.ADDRESS_SIZE_BYTES),
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      difficulty: 0,
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      caller: new Uint8Array(constants.ADDRESS_SIZE_BYTES),
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      callValue: new U256(0),
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      callData: new Uint8Array(),
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      // the ROM
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      code: new Uint8Array(), // the current running code
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      // output calls
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      logs: [],
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      selfDestructAddress: new Uint8Array(constants.ADDRESS_SIZE_BYTES),
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      // more output calls
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      returnValue: new Uint8Array()
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    }
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    this.state = new Map()
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    Object.assign(this, defaults, data || {})
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  }
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  getBalance (address) {
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    return this.state.get(address.toString()).balance
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  }
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  getCode (address) {
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    // STUB
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  }
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  getBlockHash (height) {
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    // STUB
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  }
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  // kernal
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  create (code, value) {
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    // STUB
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  }
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  call (gas, address, value, data) {
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    // STUB
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    return // result
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  }
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  delegateCall (gas, address, data) {
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    // STUB
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    return // result
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  }
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}
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