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package ethui

import (
    "bufio"
    "encoding/hex"
    "fmt"
    "github.com/ethereum/eth-go"
    "github.com/ethereum/eth-go/ethchain"
    "github.com/ethereum/eth-go/ethutil"
    "github.com/niemeyer/qml"
    "strings"
)

type Gui struct {
    win       *qml.Window
    engine    *qml.Engine
    component *qml.Common
    eth       *eth.Ethereum
}

func New(ethereum *eth.Ethereum) *Gui {
    return &Gui{eth: ethereum}
}

type Block struct {
    Number int
    Hash   string
}

func NewBlockFromBlock(block *ethchain.Block) *Block {
    info := block.BlockInfo()
    hash := hex.EncodeToString(block.Hash())

    return &Block{Number: int(info.Number), Hash: hash}
}

func (ui *Gui) Start() {
    qml.RegisterTypes("GoExtensions", 1, 0, []qml.TypeSpec{{
        Init: func(p *Block, obj qml.Object) { p.Number = 0; p.Hash = "" },
    }})

    ethutil.Config.Log.Infoln("[GUI] Starting GUI")
    ui.engine = qml.NewEngine()
    component, err := ui.engine.LoadFile("wallet.qml")
    if err != nil {
        panic(err)
    }

    ui.win = component.CreateWindow(nil)
    root := ui.win.Root()

    context := ui.engine.Context()
    context.SetVar("tester", &Tester{root: root})

    ui.eth.BlockManager.SecondaryBlockProcessor = ui
    ui.eth.Start()

    ui.win.Show()
    ui.win.Wait()
}

func (ui *Gui) ProcessBlock(block *ethchain.Block) {
    ui.win.Root().Call("addBlock", NewBlockFromBlock(block))
}

type Tester struct {
    root qml.Object
}

func (t *Tester) Compile(area qml.Object) {
    fmt.Println(area)
    ethutil.Config.Log.Infoln("[TESTER] Compiling")

    code := area.String("text")

    scanner := bufio.NewScanner(strings.NewReader(code))
    scanner.Split(bufio.ScanLines)

    var lines []string
    for scanner.Scan() {
        lines = append(lines, scanner.Text())
    }
}