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/*
    This file is part of go-ethereum

    go-ethereum is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    go-ethereum is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with go-ethereum.  If not, see <http://www.gnu.org/licenses/>.
*/
/**
 * @authors
 *  Jeffrey Wilcke <i@jev.io>
 */
package main

import (
    "encoding/json"
    "os"
    "strconv"

    "github.com/ethereum/go-ethereum/cmd/utils"
    "github.com/ethereum/go-ethereum/common"
    "github.com/ethereum/go-ethereum/core/types"
    "github.com/ethereum/go-ethereum/state"
)

type plugin struct {
    Name string `json:"name"`
    Path string `json:"path"`
}

func (gui *Gui) Transact(from, recipient, value, gas, gasPrice, d string) (string, error) {
    d = common.Bytes2Hex(utils.FormatTransactionData(d))

    return gui.xeth.Transact(from, recipient, value, gas, gasPrice, d)
}

func (self *Gui) AddPlugin(pluginPath string) {
    self.plugins[pluginPath] = plugin{Name: pluginPath, Path: pluginPath}

    json, _ := json.MarshalIndent(self.plugins, "", "    ")
    common.WriteFile(self.eth.DataDir+"/plugins.json", json)
}

func (self *Gui) RemovePlugin(pluginPath string) {
    delete(self.plugins, pluginPath)

    json, _ := json.MarshalIndent(self.plugins, "", "    ")
    common.WriteFile(self.eth.DataDir+"/plugins.json", json)
}

func (self *Gui) DumpState(hash, path string) {
    var stateDump []byte

    if len(hash) == 0 {
        stateDump = self.eth.ChainManager().State().Dump()
    } else {
        var block *types.Block
        if hash[0] == '#' {
            i, _ := strconv.Atoi(hash[1:])
            block = self.eth.ChainManager().GetBlockByNumber(uint64(i))
        } else {
            block = self.eth.ChainManager().GetBlock(common.Hex2Bytes(hash))
        }

        if block == nil {
            guilogger.Infof("block err: not found %s\n", hash)
            return
        }

        stateDump = state.New(block.Root(), self.eth.StateDb()).Dump()
    }

    file, err := os.OpenFile(path[7:], os.O_CREATE|os.O_RDWR, os.ModePerm)
    if err != nil {
        guilogger.Infoln("dump err: ", err)
        return
    }
    defer file.Close()

    guilogger.Infof("dumped state (%s) to %s\n", hash, path)

    file.Write(stateDump)
}