import QtQuick 2.4
import QtQuick.Controls 1.4
import QtQuick.Controls.Styles 1.4
import QtQuick.Dialogs 1.2
import QtQuick.Layouts 1.2
import org.subsurfacedivelog.mobile 1.0
import org.kde.kirigami 1.0 as Kirigami

Kirigami.Page {
	id: diveDetailsPage
	property alias currentIndex: diveDetailsListView.currentIndex
	property alias currentItem: diveDetailsListView.currentItem
	property alias dive_id: detailsEdit.dive_id
	property alias number: detailsEdit.number
	property alias date: detailsEdit.dateText
	property alias airtemp: detailsEdit.airtempText
	property alias watertemp: detailsEdit.watertempText
	property alias buddy: detailsEdit.buddyText
	property alias divemaster: detailsEdit.divemasterText
	property alias depth: detailsEdit.depthText
	property alias duration: detailsEdit.durationText
	property alias location: detailsEdit.locationText
	property alias gps: detailsEdit.gpsText
	property alias notes: detailsEdit.notesText
	property alias suit: detailsEdit.suitText
	property alias weight: detailsEdit.weightText
	property alias startpressure: detailsEdit.startpressureText
	property alias endpressure: detailsEdit.endpressureText
	property alias gasmix: detailsEdit.gasmixText
	property alias gpsCheckbox: detailsEdit.gpsCheckbox
	property int updateCurrentIdx: manager.updateSelectedDive

	property bool contentItem: true // HACK to work around Kirigami issue - remove once that's addressed upstream

	title: diveDetailsListView.currentItem ? diveDetailsListView.currentItem.modelData.dive.location : "Dive details"
	state: "view"

	states: [
		State {
			name: "view"
			PropertyChanges {
				target: diveDetailsPage;
				actions {
					right: deleteAction
				}
			}
			PropertyChanges { target: detailsEditScroll; opened: false }
		},
		State {
			name: "edit"
			PropertyChanges { target: detailsEditScroll; opened: true }
		},
		State {
			name: "add"
			PropertyChanges { target: detailsEditScroll; opened: true }
		}

	]

	property QtObject deleteAction: Action {
		text: "Delete dive"
		iconName: "trash-empty"
		onTriggered: {
			contextDrawer.close()
			var deletedId = diveDetailsListView.currentItem.modelData.dive.id
			var deletedIndex = diveDetailsListView.currentIndex
			manager.deleteDive(deletedId)
			stackView.pop()
			showPassiveNotification("Dive deleted", 3000, "Undo",
						function() {
							diveDetailsListView.currentIndex = manager.undoDelete(deletedId) ? deletedIndex : diveDetailsListView.currentIndex
						});
		}
	}

	actions.main: Action {
		iconName: state !== "view" ? "document-save" : "document-edit"
		onTriggered: {
			if (state === "edit" || state === "add") {
				detailsEdit.saveData()
			} else {
				startEditMode()
			}
		}
	}

	onBackRequested: {
		if (state === "edit") {
			endEditMode()
			event.accepted = true;
		} else if (state === "add") {
			endEditMode()
			stackView.pop()
			event.accepted = true;
		}
		// if we were in view mode, don't accept the event and pop the page
	}

	onUpdateCurrentIdxChanged: {
		if (diveDetailsListView.currentIndex != updateCurrentIdx) {
			diveDetailsListView.currentIndex = updateCurrentIdx
			manager.selectedDiveTimestamp = diveDetailsListView.currentItem.modelData.dive.timestamp
		}
	}

	onCurrentItemChanged: {
		manager.selectedDiveTimestamp = diveDetailsListView.currentItem.modelData.dive.timestamp
	}

	function showDiveIndex(index) {
		currentIndex = index;
		diveDetailsListView.positionViewAtIndex(index, ListView.Beginning);
	}

	function endEditMode() {
		// if we were adding a dive, we need to remove it
		if (state === "add")
			manager.addDiveAborted(dive_id)
		// just cancel the edit/add state
		state = "view";
		Qt.inputMethod.hide();
	}

	function startEditMode() {
		// set things up for editing - so make sure that the detailsEdit has
		// all the right data (using the property aliases set up above)
		dive_id = diveDetailsListView.currentItem.modelData.dive.id
		number = diveDetailsListView.currentItem.modelData.dive.number
		date = diveDetailsListView.currentItem.modelData.dive.date + " " + diveDetailsListView.currentItem.modelData.dive.time
		location = diveDetailsListView.currentItem.modelData.dive.location
		gps = diveDetailsListView.currentItem.modelData.dive.gps
		gpsCheckbox = false
		duration = diveDetailsListView.currentItem.modelData.dive.duration
		depth = diveDetailsListView.currentItem.modelData.dive.depth
		airtemp = diveDetailsListView.currentItem.modelData.dive.airTemp
		watertemp = diveDetailsListView.currentItem.modelData.dive.waterTemp
		suit = diveDetailsListView.currentItem.modelData.dive.suit
		buddy = diveDetailsListView.currentItem.modelData.dive.buddy
		divemaster = diveDetailsListView.currentItem.modelData.dive.divemaster
		notes = diveDetailsListView.currentItem.modelData.dive.notes
		if (diveDetailsListView.currentItem.modelData.dive.singleWeight) {
			// we have only one weight, go ahead, have fun and edit it
			weight = diveDetailsListView.currentItem.modelData.dive.sumWeight
		} else {
			// careful when translating, this text is "magic" in DiveDetailsEdit.qml
			weight = "cannot edit multiple weight systems"
		}
		if (diveDetailsListView.currentItem.modelData.dive.getCylinder != "Multiple" ) {
			startpressure = diveDetailsListView.currentItem.modelData.dive.startPressure
			endpressure = diveDetailsListView.currentItem.modelData.dive.endPressure
			gasmix = diveDetailsListView.currentItem.modelData.dive.firstGas
		} else {
			// careful when translating, this text is "magic" in DiveDetailsEdit.qml
			startpressure = "cannot edit multiple cylinders"
			endpressure = "cannot edit multiple cylinders"
			gasmix = "cannot edit multiple gases"
		}

		diveDetailsPage.state = "edit"
	}

	onWidthChanged: diveDetailsListView.positionViewAtIndex(diveDetailsListView.currentIndex, ListView.Beginning);

	Item {
		anchors.fill: parent
		ScrollView {
			id: diveDetailList
			anchors.fill: parent
			ListView {
				id: diveDetailsListView
				anchors.fill: parent
				model: diveModel
				currentIndex: -1
				boundsBehavior: Flickable.StopAtBounds
				maximumFlickVelocity: parent.width * 5
				orientation: ListView.Horizontal
				focus: true
				clip: true
				snapMode: ListView.SnapOneItem
				onMovementEnded: {
					currentIndex = indexAt(contentX+1, 1);
				}
				delegate: ScrollView {
					id: internalScrollView
					width: diveDetailsListView.width
					height: diveDetailsListView.height
					property var modelData: model
					Flickable {
						//contentWidth: parent.width
						contentHeight: diveDetails.height
						boundsBehavior: Flickable.StopAtBounds
						DiveDetailsView {
							id: diveDetails
							width: internalScrollView.width
						}
					}
				}
			}
		}
		Kirigami.OverlaySheet {
			id: detailsEditScroll
			anchors.fill: parent
			onOpenedChanged: {
				if (!opened) {
					endEditMode()
				}
			}
			DiveDetailsEdit {
				id: detailsEdit
			}
		}
	}
}