import QtQuick 2.0
import QtQuick.Controls 1.0;
import QtQuick.Layouts 1.0;
import QtQuick.Dialogs 1.0;
import QtQuick.Window 2.1;
import QtQuick.Controls.Styles 1.1
import Ethereum 1.0

import "../ext/filter.js" as Eth
import "../ext/http.js" as Http

ApplicationWindow {
	id: root

	property alias miningButtonText: miningButton.text
	property var ethx : Eth.ethx

	width: 900
	height: 600
	minimumHeight: 300

	title: "Ether Browser"

	// This signal is used by the filter API. The filter API connects using this signal handler from
	// the different QML files and plugins.
	signal message(var callback, int seed);
	function invokeFilterCallback(data, receiverSeed) {
		//var messages = JSON.parse(data)
		// Signal handler
		message(data, receiverSeed);
	}

	TextField {
		id: copyElementHax
		visible: false
	}

	function copyToClipboard(text) {
		copyElementHax.text = text
		copyElementHax.selectAll()
		copyElementHax.copy()
	}

	// Takes care of loading all default plugins
	Component.onCompleted: {
		addPlugin("./views/wallet.qml", {noAdd: true, section: "ethereum", active: true});

		addPlugin("./views/transaction.qml", {noAdd: true, section: "legacy"});
		addPlugin("./views/chain.qml", {noAdd: true, section: "legacy"});
		addPlugin("./views/info.qml", {noAdd: true, section: "legacy"});
		addPlugin("./views/pending_tx.qml", {noAdd: true, section: "legacy"});
		addPlugin("./views/javascript.qml", {noAdd: true, section: "legacy"});

		// Call the ready handler
		gui.done();
	}

	function addViews(view, path, options) {
		var views = mainSplit.addComponent(view, options)
		views.menuItem.path = path

		mainSplit.views.push(views);

		if(!options.noAdd) {
			gui.addPlugin(path)
		}

		return views
	}

	function addPlugin(path, options) {
		try {
			if(typeof(path) === "string" && /^https?/.test(path)) {
				console.log('load http')
				Http.request(path, function(o) {
					if(o.status === 200) {
						var view = Qt.createQmlObject(o.responseText, mainView, path)
						addViews(view, path, options)
					}
				})

				return
			}

			var component = Qt.createComponent(path);
			if(component.status != Component.Ready) {
				if(component.status == Component.Error) {
					ethx.note("error: ", component.errorString());
				}

				return
			}

			var view = mainView.createView(component, options)
			var views = addViews(view, path, options)

			return views.view
		} catch(e) {
			ethx.note(e)
		}
	}

	MenuBar {
		Menu {
			title: "File"
			MenuItem {
				text: "Import App"
				shortcut: "Ctrl+o"
				onTriggered: {
					generalFileDialog.show(true, importApp)
				}
			}

			MenuItem {
				text: "Browser"
				onTriggered: eth.openBrowser()
			}

			MenuItem {
				text: "Add plugin"
				onTriggered: {
					generalFileDialog.show(true, function(path) {
						addPlugin(path, {canClose: true, section: "apps"})
					})
				}
			}

			MenuSeparator {}

			MenuItem {
				text: "Import key"
				shortcut: "Ctrl+i"
				onTriggered: {
					generalFileDialog.show(true, function(path) {
						gui.importKey(path)
					})
				}
			}

			MenuItem {
				text: "Export keys"
				shortcut: "Ctrl+e"
				onTriggered: {
					generalFileDialog.show(false, function(path) {
					})
				}
			}
		}

		Menu {
			title: "Developer"
			MenuItem {
				text: "Debugger"
				shortcut: "Ctrl+d"
				onTriggered: eth.startDebugger()
			}

			MenuItem {
				text: "Import Tx"
				onTriggered: {
					txImportDialog.visible = true
				}
			}

			MenuItem {
				text: "Run JS file"
				onTriggered: {
					generalFileDialog.show(true, function(path) {
						eth.evalJavascriptFile(path)
					})
				}
			}

			MenuItem {
				text: "Dump state"
				onTriggered: {
					generalFileDialog.show(false, function(path) {
						// Empty hash for latest
						gui.dumpState("", path)
					})
				}
			}

			MenuSeparator {}

			MenuItem {
				id: miningSpeed
				text: "Mining: Turbo"
				onTriggered: {
					gui.toggleTurboMining()
					if(text == "Mining: Turbo") {
						text = "Mining: Normal";
					} else {
						text = "Mining: Turbo";
					}
				}
			}
		}

		Menu {
			title: "Network"
			MenuItem {
				text: "Add Peer"
				shortcut: "Ctrl+p"
				onTriggered: {
					addPeerWin.visible = true
				}
			}
			MenuItem {
				text: "Show Peers"
				shortcut: "Ctrl+e"
				onTriggered: {
					peerWindow.visible = true
				}
			}
		}

		Menu {
			title: "Help"
			MenuItem {
				text: "About"
				onTriggered: {
					aboutWin.visible = true
				}
			}
		}

	}

	statusBar: StatusBar {
		height: 32
		RowLayout {
			Button {
				id: miningButton
				text: "Start Mining"
				onClicked: {
					gui.toggleMining()
				}
			}

			Button {
				id: importAppButton
				text: "Browser"
				onClicked: {
					eth.openBrowser()
				}
			}

			RowLayout {
				Label {
					id: walletValueLabel

					font.pixelSize: 10
					styleColor: "#797979"
				}
			}
		}

		Label {
			y: 6
			objectName: "miningLabel"
			visible: true
			font.pixelSize: 10
			anchors.right: lastBlockLabel.left
			anchors.rightMargin: 5
		}

		Label {
			y: 6
			id: lastBlockLabel
			objectName: "lastBlockLabel"
			visible: true
			text: ""
			font.pixelSize: 10
			anchors.right: peerGroup.left
			anchors.rightMargin: 5
		}

		ProgressBar {
			id: syncProgressIndicator
			visible: false
			objectName: "syncProgressIndicator"
			y: 3
			width: 140
			indeterminate: true
			anchors.right: peerGroup.left
			anchors.rightMargin: 5
		}

		RowLayout {
			id: peerGroup
			y: 7
			anchors.right: parent.right
			MouseArea {
				onDoubleClicked:  peerWindow.visible = true
				anchors.fill: parent
			}

			Label {
				id: peerLabel
				font.pixelSize: 8
				text: "0 / 0"
			}
			Image {
				id: peerImage
				width: 10; height: 10
				source: "../network.png"
			}
		}
	}


	property var blockModel: ListModel {
		id: blockModel
	}

	SplitView {
		property var views: [];

		id: mainSplit
		anchors.fill: parent
		resizing: false

		function setView(view, menu) {
			for(var i = 0; i < views.length; i++) {
				views[i].view.visible = false
				views[i].menuItem.setSelection(false)
			}
			view.visible = true

			//menu.border.color = "#CCCCCC"
			//menu.color = "#FFFFFFFF"
			menu.setSelection(true)
		}

		function addComponent(view, options) {
			view.visible = false
			view.anchors.fill = mainView

			if( !view.hasOwnProperty("iconSource") ) {
				console.log("Could not load plugin. Property 'iconSourc' not found on view.");
				return;
			}

			var menuItem = menu.createMenuItem(view.iconSource, view, options);
			if( view.hasOwnProperty("menuItem") ) {
				view.menuItem = menuItem;
			}

			if( view.hasOwnProperty("onReady") ) {
				view.onReady.call(view)
			}

			if( options.active ) {
				setView(view, menuItem)
			}


			return {view: view, menuItem: menuItem}
		}

		/*********************
		 * Main menu.
		 ********************/
		 Rectangle {
			 id: menu
			 Layout.minimumWidth: 180
			 Layout.maximumWidth: 180
			 anchors.top: parent.top
			 color: "#ececec"

			 Component {
				 id: menuItemTemplate
				 Rectangle {
					 id: menuItem
					 property var view;
					 property var path;

					 property alias title: label.text
					 property alias icon: icon.source
					 property alias secondaryTitle: secondary.text
					 function setSelection(on) {
						 sel.visible = on
					 }

					 width: 176
					 height: 28
					 color: "#00000000"

					 anchors {
						 left: parent.left
						 leftMargin: 4
					 }

					 Rectangle {
						 id: sel
						 visible: false
						 anchors.fill: parent
						 color: "#00000000"
						 Rectangle {
							 id: r
							 anchors.fill: parent
							 border.color: "#CCCCCC"
							 border.width: 1
							 radius: 5
							 color: "#FFFFFFFF"
						 }
						 Rectangle {
							 anchors {
								 top: r.top
								 bottom: r.bottom
								 right: r.right
							 }
							 width: 10
							 color: "#FFFFFFFF"

							 Rectangle {
								 anchors {
									 left: parent.left
									 right: parent.right
									 top: parent.top
								 }
								 height: 1
								 color: "#CCCCCC"
							 }

							 Rectangle {
								 anchors {
									 left: parent.left
									 right: parent.right
									 bottom: parent.bottom
								 }
								 height: 1
								 color: "#CCCCCC"
							 }
						 }
					 }

					 MouseArea {
						 anchors.fill: parent
						 onClicked: {
							 mainSplit.setView(view, menuItem)
						 }
					 }

					 Image {
						 id: icon
						 height: 20
						 width: 20
						 anchors {
							 left: parent.left
							 verticalCenter: parent.verticalCenter
							 leftMargin: 3
						 }
						 MouseArea {
							 anchors.fill: parent
							 onClicked: {
								 menuItem.closeApp()
							 }
						 }
					 }

					 Text {
						 id: label
						 anchors {
							 left: icon.right
							 verticalCenter: parent.verticalCenter
							 leftMargin: 3
						 }

						 color: "#0D0A01"
						 font.pixelSize: 12
					 }

					 Text {
						 id: secondary
						 anchors {
							 right: parent.right
							 rightMargin: 8
							 verticalCenter: parent.verticalCenter
						 }
						 color: "#AEADBE"
						 font.pixelSize: 12
					 }


					 function closeApp() {
						 if(this.view.hasOwnProperty("onDestroy")) {
							 this.view.onDestroy.call(this.view)
						 }

						 this.view.destroy()
						 this.destroy()
						 gui.removePlugin(this.path)
					 }
				 }
			 }

			 function createMenuItem(icon, view, options) {
				 if(options === undefined) {
					 options = {};
				 }

				 var section;
				 switch(options.section) {
					 case "ethereum":
					 section = menuDefault;
					 break;
					 case "legacy":
					 section = menuLegacy;
					 break;
					 default:
					 section = menuApps;
					 break;
				 }

				 var comp = menuItemTemplate.createObject(section)

				 comp.view = view
				 comp.title = view.title
				 comp.icon = view.iconSource
				 /*
				  if(view.secondary !== undefined) {
					  comp.secondary = view.secondary
				  }
				  */

				 return comp

				 /*
				  if(options.canClose) {
					  //comp.closeButton.visible = options.canClose
				  }
				  */
			 }

			 ColumnLayout {
				 id: menuColumn
				 y: 10
				 width: parent.width
				 anchors.left: parent.left
				 anchors.right: parent.right
				 spacing: 3

				 Text {
					 text: "ETHEREUM"
					 font.bold: true
					 anchors {
						 left: parent.left
						 leftMargin: 5
					 }
					 color: "#888888"
				 }

				 ColumnLayout {
					 id: menuDefault
					 spacing: 3
					 anchors {
						 left: parent.left
						 right: parent.right
					 }
				 }


				 Text {
					 text: "APPS"
					 font.bold: true
					 anchors {
						 left: parent.left
						 leftMargin: 5
					 }
					 color: "#888888"
				 }

				 ColumnLayout {
					 id: menuApps
					 spacing: 3
					 anchors {
						 left: parent.left
						 right: parent.right
					 }
				 }

				 Text {
					 text: "DEBUG"
					 font.bold: true
					 anchors {
						 left: parent.left
						 leftMargin: 5
					 }
					 color: "#888888"
				 }

				 ColumnLayout {
					 id: menuLegacy
					 spacing: 3
					 anchors {
						 left: parent.left
						 right: parent.right
					 }
				 }
			 }
		 }

		 /*********************
		  * Main view
		  ********************/
		  Rectangle {
			  anchors.right: parent.right
			  anchors.left: menu.right
			  anchors.bottom: parent.bottom
			  anchors.top: parent.top
			  color: "#00000000"

			  Rectangle {
				  id: urlPane
				  height: 40
				  color: "#00000000"
				  anchors {
					  left: parent.left
					  right: parent.right
					  leftMargin: 5
					  rightMargin: 5
					  top: parent.top
					  topMargin: 5
				  }
				  TextField {
					  id: url
					  objectName: "url"
					  placeholderText: "DApp URL"
					  anchors {
						  left: parent.left
						  right: parent.right
						  top: parent.top
						  topMargin: 5
						  rightMargin: 5
						  leftMargin: 5
					  }

					  Keys.onReturnPressed: {
						  addPlugin(this.text, {canClose: true, section: "apps"})
					  }
				  }

			  }

			  // Border
			  Rectangle {
				  id: divider
				  anchors {
					  left: parent.left
					  right: parent.right
					  top: urlPane.bottom
				  }
				  z: -1
				  height: 1
				  color: "#CCCCCC"
			  }

			  Rectangle {
				  id: mainView


				  anchors.right: parent.right
				  anchors.left: parent.left
				  anchors.bottom: parent.bottom
				  anchors.top: divider.bottom

				  function createView(component) {
					  var view = component.createObject(mainView)

					  return view;
				  }
			  }
		  }
	  }


	  /******************
	   * Dialogs
	   *****************/
	   FileDialog {
		   id: generalFileDialog
		   property var callback;
		   onAccepted: {
			   var path = this.fileUrl.toString();
			   callback.call(this, path);
		   }

		   function show(selectExisting, callback) {
			   generalFileDialog.callback = callback;
			   generalFileDialog.selectExisting = selectExisting;

			   this.open();
		   }
	   }


	   /******************
	    * Wallet functions
	    *****************/
	    function importApp(path) {
		    var ext = path.split('.').pop()
		    if(ext == "html" || ext == "htm") {
			    eth.openHtml(path)
		    }else if(ext == "qml"){
			    addPlugin(path, {canClose: true, section: "apps"})
		    }
	    }


	    function setWalletValue(value) {
		    walletValueLabel.text = value
	    }

	    function loadPlugin(name) {
		    console.log("Loading plugin" + name)
		    var view = mainView.addPlugin(name)
	    }

	    function setPeers(text) {
		    peerLabel.text = text
	    }

	    function addPeer(peer) {
		    // We could just append the whole peer object but it cries if you try to alter them
		    peerModel.append({ip: peer.ip, port: peer.port, lastResponse:timeAgo(peer.lastSend), latency: peer.latency, version: peer.version})
	    }

	    function resetPeers(){
		    peerModel.clear()
	    }

	    function timeAgo(unixTs){
		    var lapsed = (Date.now() - new Date(unixTs*1000)) / 1000
		    return  (lapsed + " seconds ago")
	    }

	    function convertToPretty(unixTs){
		    var a = new Date(unixTs*1000);
		    var months = ['Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'];
		    var year = a.getFullYear();
		    var month = months[a.getMonth()];
		    var date = a.getDate();
		    var hour = a.getHours();
		    var min = a.getMinutes();
		    var sec = a.getSeconds();
		    var time = date+' '+month+' '+year+' '+hour+':'+min+':'+sec ;
		    return time;
	    }

	    /**********************
	     * Windows
	     *********************/
	     Window {
		     id: peerWindow
		     //flags: Qt.CustomizeWindowHint | Qt.Tool | Qt.WindowCloseButtonHint
		     height: 200
		     width: 700
		     Rectangle {
			     anchors.fill: parent
			     property var peerModel: ListModel {
				     id: peerModel
			     }
			     TableView {
				     anchors.fill: parent
				     id: peerTable
				     model: peerModel
				     TableViewColumn{width: 100; role: "ip" ; title: "IP" }
				     TableViewColumn{width: 60; role: "port" ; title: "Port" }
				     TableViewColumn{width: 140; role: "lastResponse"; title: "Last event" }
				     TableViewColumn{width: 100; role: "latency"; title: "Latency" }
				     TableViewColumn{width: 260; role: "version" ; title: "Version" }
			     }
		     }
	     }

	     Window {
		     id: aboutWin
		     visible: false
		     title: "About"
		     minimumWidth: 350
		     maximumWidth: 350
		     maximumHeight: 200
		     minimumHeight: 200

		     Image {
			     id: aboutIcon
			     height: 150
			     width: 150
			     fillMode: Image.PreserveAspectFit
			     smooth: true
			     source: "../facet.png"
			     x: 10
			     y: 10
		     }

		     Text {
			     anchors.left: aboutIcon.right
			     anchors.leftMargin: 10
			     font.pointSize: 12
			     text: "<h2>Ethereal - Aitne</h2><br><h3>Development</h3>Jeffrey Wilcke<br>Maran Hidskes<br>Viktor Trón<br>"
		     }
	     }

	     Window {
		     id: txImportDialog
		     minimumWidth: 270
		     maximumWidth: 270
		     maximumHeight: 50
		     minimumHeight: 50
		     TextField {
			     id: txImportField
			     width: 170
			     anchors.verticalCenter: parent.verticalCenter
			     anchors.left: parent.left
			     anchors.leftMargin: 10
			     onAccepted: {
			     }
		     }
		     Button {
			     anchors.left: txImportField.right
			     anchors.verticalCenter: parent.verticalCenter
			     anchors.leftMargin: 5
			     text: "Import"
			     onClicked: {
				     eth.importTx(txImportField.text)
				     txImportField.visible = false
			     }
		     }
		     Component.onCompleted: {
			     addrField.focus = true
		     }
	     }

	     Window {
		     id: addPeerWin
		     visible: false
		     minimumWidth: 230
		     maximumWidth: 230
		     maximumHeight: 50
		     minimumHeight: 50

		     TextField {
			     id: addrField
			     anchors.verticalCenter: parent.verticalCenter
			     anchors.left: parent.left
			     anchors.leftMargin: 10
			     placeholderText: "address:port"
			     text: "54.76.56.74:30303"
			     onAccepted: {
				     eth.connectToPeer(addrField.text)
				     addPeerWin.visible = false
			     }
		     }
		     Button {
			     anchors.left: addrField.right
			     anchors.verticalCenter: parent.verticalCenter
			     anchors.leftMargin: 5
			     text: "Add"
			     onClicked: {
				     eth.connectToPeer(addrField.text)
				     addPeerWin.visible = false
			     }
		     }
		     Component.onCompleted: {
			     addrField.focus = true
		     }
	     }
     }