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package javascript
import (
"fmt"
"github.com/ethereum/eth-go"
"github.com/ethereum/eth-go/ethchain"
"github.com/ethereum/eth-go/ethpipe"
"github.com/ethereum/eth-go/ethstate"
"github.com/ethereum/eth-go/ethutil"
"github.com/obscuren/otto"
)
type JSStateObject struct {
*ethpipe.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 {
*ethpipe.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 *ethstate.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 {
*ethpipe.JSPipe
vm *otto.Otto
ethereum *eth.Ethereum
}
func (self *JSEthereum) GetBlock(hash string) otto.Value {
return self.toVal(&JSBlock{self.JSPipe.BlockByHash(hash), self})
}
func (self *JSEthereum) GetPeers() otto.Value {
return self.toVal(self.JSPipe.Peers())
}
func (self *JSEthereum) GetKey() otto.Value {
return self.toVal(self.JSPipe.Key())
}
func (self *JSEthereum) GetStateObject(addr string) otto.Value {
return self.toVal(&JSStateObject{ethpipe.NewJSObject(self.JSPipe.World().SafeGet(ethutil.Hex2Bytes(addr))), self})
}
func (self *JSEthereum) Peers() otto.Value {
return self.toVal(self.JSPipe.Peers())
}
func (self *JSEthereum) Transact(key, recipient, valueStr, gasStr, gasPriceStr, dataStr string) otto.Value {
r, err := self.JSPipe.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.JSPipe.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 := ethchain.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
}
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