path: root/javascript/types.go

package javascript

import (
    "fmt"

    "github.com/ethereum/go-ethereum"
    "github.com/ethereum/go-ethereum/ethutil"
    "github.com/ethereum/go-ethereum/state"
    "github.com/ethereum/go-ethereum/ui"
    "github.com/ethereum/go-ethereum/xeth"
    "github.com/obscuren/otto"
)

type JSStateObject struct {
    *xeth.JSObject
    eth *JSEthereum
}

func (self *JSStateObject) EachStorage(call otto.FunctionCall) otto.Value {
    cb := call.Argument(0)
    self.JSObject.EachStorage(func(key string, value *ethutil.Value) {
        value.Decode()

        cb.Call(self.eth.toVal(self), self.eth.toVal(key), self.eth.toVal(ethutil.Bytes2Hex(value.Bytes())))
    })

    return otto.UndefinedValue()
}

// The JSEthereum object attempts to wrap the PEthereum object and returns
// meaningful javascript objects
type JSBlock struct {
    *xeth.JSBlock
    eth *JSEthereum
}

func (self *JSBlock) GetTransaction(hash string) otto.Value {
    return self.eth.toVal(self.JSBlock.GetTransaction(hash))
}

type JSMessage struct {
    To        string `json:"to"`
    From      string `json:"from"`
    Input     string `json:"input"`
    Output    string `json:"output"`
    Path      int    `json:"path"`
    Origin    string `json:"origin"`
    Timestamp int32  `json:"timestamp"`
    Coinbase  string `json:"coinbase"`
    Block     string `json:"block"`
    Number    int32  `json:"number"`
}

func NewJSMessage(message *state.Message) JSMessage {
    return JSMessage{
        To:        ethutil.Bytes2Hex(message.To),
        From:      ethutil.Bytes2Hex(message.From),
        Input:     ethutil.Bytes2Hex(message.Input),
        Output:    ethutil.Bytes2Hex(message.Output),
        Path:      message.Path,
        Origin:    ethutil.Bytes2Hex(message.Origin),
        Timestamp: int32(message.Timestamp),
        Coinbase:  ethutil.Bytes2Hex(message.Origin),
        Block:     ethutil.Bytes2Hex(message.Block),
        Number:    int32(message.Number.Int64()),
    }
}

type JSEthereum struct {
    *xeth.JSXEth
    vm       *otto.Otto
    ethereum *eth.Ethereum
}

func (self *JSEthereum) GetBlock(hash string) otto.Value {
    return self.toVal(&JSBlock{self.JSXEth.BlockByHash(hash), self})
}

func (self *JSEthereum) GetPeers() otto.Value {
    return self.toVal(self.JSXEth.Peers())
}

func (self *JSEthereum) GetKey() otto.Value {
    return self.toVal(self.JSXEth.Key())
}

func (self *JSEthereum) GetStateObject(addr string) otto.Value {
    return self.toVal(&JSStateObject{xeth.NewJSObject(self.JSXEth.World().SafeGet(ethutil.Hex2Bytes(addr))), self})
}

func (self *JSEthereum) Peers() otto.Value {
    return self.toVal(self.JSXEth.Peers())
}

func (self *JSEthereum) Transact(key, recipient, valueStr, gasStr, gasPriceStr, dataStr string) otto.Value {
    r, err := self.JSXEth.Transact(key, recipient, valueStr, gasStr, gasPriceStr, dataStr)
    if err != nil {
        fmt.Println(err)

        return otto.UndefinedValue()
    }

    return self.toVal(r)
}

func (self *JSEthereum) Create(key, valueStr, gasStr, gasPriceStr, scriptStr string) otto.Value {
    r, err := self.JSXEth.Transact(key, "", valueStr, gasStr, gasPriceStr, scriptStr)

    if err != nil {
        fmt.Println(err)

        return otto.UndefinedValue()
    }

    return self.toVal(r)
}

func (self *JSEthereum) toVal(v interface{}) otto.Value {
    result, err := self.vm.ToValue(v)

    if err != nil {
        fmt.Println("Value unknown:", err)

        return otto.UndefinedValue()
    }

    return result
}

func (self *JSEthereum) Messages(object map[string]interface{}) otto.Value {
    filter := ui.NewFilterFromMap(object, self.ethereum)

    messages := filter.Find()
    var msgs []JSMessage
    for _, m := range messages {
        msgs = append(msgs, NewJSMessage(m))
    }

    v, _ := self.vm.ToValue(msgs)

    return v
}