// Copyright (c) 2022 Ultimaker B.V.
// Cura is released under the terms of the LGPLv3 or higher.

import QtQuick
import QtQuick.Controls 2.1

import UM 1.5 as UM
import Cura 1.0 as Cura

import "../Menus"

Item
{
    id: settingsView

    property QtObject settingVisibilityPresetsModel: CuraApplication.getSettingVisibilityPresetsModel()
    property bool findingSettings

    Item
    {
        id: filterContainer

        anchors
        {
            top: parent.top
            left: parent.left
            right: settingVisibilityMenu.left
        }
        height: UM.Theme.getSize("print_setup_big_item").height

        Timer
        {
            id: settingsSearchTimer
            onTriggered: filter.editingFinished()
            interval: 500
            running: false
            repeat: false
        }

        Cura.TextField
        {
            id: filter
            height: parent.height
            anchors.left: parent.left
            anchors.right: parent.right
            topPadding: height / 4
            leftPadding: searchIcon.width + UM.Theme.getSize("default_margin").width * 2
            placeholderText: catalog.i18nc("@label:textbox", "Search settings")
            font: UM.Theme.getFont("default_italic")

            property var expandedCategories
            property bool lastFindingSettings: false

            UM.ColorImage
            {
                id: searchIcon

                anchors
                {
                    verticalCenter: parent.verticalCenter
                    left: parent.left
                    leftMargin: UM.Theme.getSize("default_margin").width
                }
                source: UM.Theme.getIcon("Magnifier")
                height: UM.Theme.getSize("small_button_icon").height
                width: height
                color: UM.Theme.getColor("text")
            }

            onTextChanged: settingsSearchTimer.restart()

            onEditingFinished:
            {
                definitionsModel.filter = {"i18n_label|i18n_description" : "*" + text}
                findingSettings = (text.length > 0)
                if (findingSettings != lastFindingSettings)
                {
                    updateDefinitionModel()
                    lastFindingSettings = findingSettings
                }
            }

            Keys.onEscapePressed: filter.text = ""

            function updateDefinitionModel()
            {
                if (findingSettings)
                {
                    expandedCategories = definitionsModel.expanded.slice()
                    definitionsModel.expanded = [""]  // keep categories closed while to prevent render while making settings visible one by one
                    definitionsModel.showAncestors = true
                    definitionsModel.showAll = true
                    definitionsModel.expanded = ["*"]
                }
                else
                {
                    if (expandedCategories)
                    {
                        definitionsModel.expanded = expandedCategories
                    }
                    definitionsModel.showAncestors = false
                    definitionsModel.showAll = false
                }
            }
        }

        UM.SimpleButton
        {
            id: clearFilterButton
            iconSource: UM.Theme.getIcon("Cancel")
            visible: findingSettings

            height: Math.round(parent.height * 0.4)
            width: visible ? height : 0

            anchors.verticalCenter: parent.verticalCenter
            anchors.right: parent.right
            anchors.rightMargin: UM.Theme.getSize("default_margin").width

            color: UM.Theme.getColor("setting_control_button")
            hoverColor: UM.Theme.getColor("setting_control_button_hover")

            onClicked:
            {
                filter.text = ""
                filter.forceActiveFocus()
            }
        }
    }

    SettingVisibilityPresetsMenu
    {
        id: settingVisibilityPresetsMenu
        onCollapseAllCategories:
        {
            settingsSearchTimer.stop()
            filter.text = "" // clear search field
            filter.editingFinished()
            definitionsModel.collapseAllCategories()
        }
    }

    UM.BurgerButton
    {
        id: settingVisibilityMenu

        anchors
        {
            verticalCenter: filterContainer.verticalCenter
            right: parent.right
        }

        onClicked:
        {
            settingVisibilityPresetsMenu.popup(
                popupContainer,
                -settingVisibilityPresetsMenu.width + UM.Theme.getSize("default_margin").width,
                settingVisibilityMenu.height
            )
        }
    }
    Item
    {
        // Work around to prevent the buttom from being rescaled if a popup is attached
        id: popupContainer
        anchors.bottom: settingVisibilityMenu.bottom
        anchors.right: settingVisibilityMenu.right
    }

    // Mouse area that gathers the scroll events to not propagate it to the main view.
    MouseArea
    {
        anchors.fill: contents
        acceptedButtons: Qt.AllButtons
        onWheel: (wheel) => { wheel.accepted = true }
    }

    ListView
    {
        id: contents
        maximumFlickVelocity: 2000 * screenScaleFactor
        flickDeceleration: 4000 * screenScaleFactor
//        Timer
//        {
//            id: flickTimer
//            interval: 50
//            onTriggered:
//            {
//                print("triggered")
//                contents.cancelFlick()
//            }
//        }
//
//        onFlickStarted: {
//            print("Start Flick")
//            flickTimer.start()
//        }

        anchors
        {
            top: filterContainer.bottom
            topMargin: UM.Theme.getSize("default_margin").height
            bottom: parent.bottom
            right: parent.right
            left: parent.left
        }
        clip: true
        cacheBuffer: 1000000   // Set a large cache to effectively just cache every list item.
        ScrollBar.vertical: UM.ScrollBar
        {
            id: scrollBar
            onPositionChanged: {
                // This removes focus from items when scrolling.
                // This fixes comboboxes staying open and scrolling container
                if (!activeFocus && !filter.activeFocus) {
                    forceActiveFocus();
                }
            }
//            snapMode: ScrollBar.SnapAlways
//            stepSize: 10
        }

        model: UM.SettingDefinitionsModel
        {
            id: definitionsModel
            containerId: Cura.MachineManager.activeMachine !== null ? Cura.MachineManager.activeMachine.definition.id: ""
            visibilityHandler: UM.SettingPreferenceVisibilityHandler { }
            exclude: ["machine_settings", "command_line_settings", "infill_mesh", "infill_mesh_order", "cutting_mesh", "support_mesh", "anti_overhang_mesh"] // TODO: infill_mesh settings are excluded hardcoded, but should be based on the fact that settable_globally, settable_per_meshgroup and settable_per_extruder are false.
            expanded: CuraApplication.expandedCategories
            onExpandedChanged:
            {
                if (!findingSettings)
                {
                    // Do not change expandedCategories preference while filtering settings
                    // because all categories are expanded while filtering
                    CuraApplication.setExpandedCategories(expanded)
                }
            }
            onVisibilityChanged: Cura.SettingInheritanceManager.scheduleUpdate()
        }

        property int indexWithFocus: -1
        property string activeMachineId: Cura.MachineManager.activeMachine !== null ? Cura.MachineManager.activeMachine.id : ""
        delegate: Loader
        {
            id: delegate

            width: contents.width - (scrollBar.width + UM.Theme.getSize("narrow_margin").width)
            opacity: enabled ? 1 : 0
            enabled: provider.properties.enabled === "True"

            property var definition: model
            property var settingDefinitionsModel: definitionsModel
            property var propertyProvider: provider
            property var globalPropertyProvider: inheritStackProvider
            property bool externalResetHandler: false

            //Qt5.4.2 and earlier has a bug where this causes a crash: https://bugreports.qt.io/browse/QTBUG-35989
            //In addition, while it works for 5.5 and higher, the ordering of the actual combo box drop down changes,
            //causing nasty issues when selecting different options. So disable asynchronous loading of enum type completely.
            asynchronous: model.type !== "enum" && model.type !== "extruder" && model.type !== "optional_extruder"
            active: model.type !== undefined

            source:
            {
                switch(model.type)
                {
                    case "int":
                        return "SettingTextField.qml"
                    case "[int]":
                        return "SettingTextField.qml"
                    case "float":
                        return "SettingTextField.qml"
                    case "enum":
                        return "SettingComboBox.qml"
                    case "extruder":
                        return "SettingExtruder.qml"
                    case "bool":
                        return "SettingCheckBox.qml"
                    case "str":
                        return "SettingTextField.qml"
                    case "category":
                        return "SettingCategory.qml"
                    case "optional_extruder":
                        return "SettingOptionalExtruder.qml"
                    default:
                        return "SettingUnknown.qml"
                }
            }

            // Binding to ensure that the right containerstack ID is set for the provider.
            // This ensures that if a setting has a limit_to_extruder id (for instance; Support speed points to the
            // extruder that actually prints the support, as that is the setting we need to use to calculate the value)
            Binding
            {
                target: provider
                property: "containerStackId"
                when: model.settable_per_extruder || (inheritStackProvider.properties.limit_to_extruder !== undefined && inheritStackProvider.properties.limit_to_extruder >= 0);
                value:
                {
                    // Associate this binding with Cura.MachineManager.activeMachine.id in the beginning so this
                    // binding will be triggered when activeMachineId is changed too.
                    // Otherwise, if this value only depends on the extruderIds, it won't get updated when the
                    // machine gets changed.

                    if (!model.settable_per_extruder)
                    {
                        //Not settable per extruder or there only is global, so we must pick global.
                        return contents.activeMachineId
                    }
                    if (inheritStackProvider.properties.limit_to_extruder !== undefined && inheritStackProvider.properties.limit_to_extruder >= 0)
                    {
                        //We have limit_to_extruder, so pick that stack.
                        return Cura.ExtruderManager.extruderIds[inheritStackProvider.properties.limit_to_extruder]
                    }
                    if (Cura.ExtruderManager.activeExtruderStackId)
                    {
                        //We're on an extruder tab. Pick the current extruder.
                        return Cura.ExtruderManager.activeExtruderStackId
                    }
                    //No extruder tab is selected. Pick the global stack. Shouldn't happen any more since we removed the global tab.
                    return contents.activeMachineId
                }
            }

            // Specialty provider that only watches global_inherits (we can't filter on what property changed we get events
            // so we bypass that to make a dedicated provider).
            UM.SettingPropertyProvider
            {
                id: inheritStackProvider
                containerStackId: contents.activeMachineId
                key: model.key
                watchedProperties: [ "limit_to_extruder" ]
            }

            UM.SettingPropertyProvider
            {
                id: provider

                containerStackId: contents.activeMachineId
                key: model.key
                watchedProperties: [ "value", "enabled", "state", "validationState", "settable_per_extruder", "resolve" ]
                storeIndex: 0
                removeUnusedValue: model.resolve === undefined
            }

            Connections
            {
                target: item
                function onContextMenuRequested()
                {
                    contextMenu.key = model.key
                    contextMenu.settingVisible = model.visible
                    contextMenu.provider = provider
                    contextMenu.popup()                    //iconName: model.icon_name
                }
                function onShowTooltip(text) { base.showTooltip(delegate, Qt.point(-settingsView.x - UM.Theme.getSize("default_margin").width, 0), text) }
                function onHideTooltip() { base.hideTooltip() }
                function onShowAllHiddenInheritedSettings()
                {
                    var children_with_override = Cura.SettingInheritanceManager.getChildrenKeysWithOverride(category_id)
                    for(var i = 0; i < children_with_override.length; i++)
                    {
                        definitionsModel.setVisible(children_with_override[i], true)
                    }
                    Cura.SettingInheritanceManager.manualRemoveOverride(category_id)
                }
                function onFocusReceived()
                {
                    contents.indexWithFocus = index
                    contents.positionViewAtIndex(index, ListView.Contain)
                }
                function onSetActiveFocusToNextSetting(forward)
                {
                    if (forward == undefined || forward)
                    {
                        contents.currentIndex = contents.indexWithFocus + 1
                        while(contents.currentItem && contents.currentItem.height <= 0)
                        {
                            contents.currentIndex++
                        }
                        if (contents.currentItem)
                        {
                            contents.currentItem.item.focusItem.forceActiveFocus()
                        }
                    }
                    else
                    {
                        contents.currentIndex = contents.indexWithFocus - 1
                        while(contents.currentItem && contents.currentItem.height <= 0)
                        {
                            contents.currentIndex--
                        }
                        if (contents.currentItem)
                        {
                            contents.currentItem.item.focusItem.forceActiveFocus()
                        }
                    }
                }
            }
        }

        Cura.Menu
        {
            id: contextMenu

            property string key
            property var provider
            property bool settingVisible

            Cura.MenuItem
            {
                //: Settings context menu action
                text: catalog.i18nc("@action:menu", "Copy value to all extruders")
                visible: machineExtruderCount.properties.value > 1
                enabled: contextMenu.provider !== undefined && contextMenu.provider.properties.settable_per_extruder !== "False"
                onTriggered: Cura.MachineManager.copyValueToExtruders(contextMenu.key)
            }

            Cura.MenuItem
            {
                //: Settings context menu action
                text: catalog.i18nc("@action:menu", "Copy all changed values to all extruders")
                visible: machineExtruderCount.properties.value > 1
                enabled: contextMenu.provider !== undefined
                onTriggered: Cura.MachineManager.copyAllValuesToExtruders()
            }

            Cura.MenuSeparator
            {
                visible: machineExtruderCount.properties.value > 1
            }

            Instantiator
            {
                id: customMenuItems
                model: Cura.SidebarCustomMenuItemsModel { }
                Cura.MenuItem
                {
                    text: model.name
                    onTriggered:
                    {
                        customMenuItems.model.callMenuItemMethod(name, model.actions, {"key": contextMenu.key})
                    }
                }
               onObjectAdded: contextMenu.insertItem(index, object)
               onObjectRemoved: contextMenu.removeItem(object)
            }

            Cura.MenuSeparator
            {
                visible: customMenuItems.count > 0
            }

            Cura.MenuItem
            {
                //: Settings context menu action
                visible: !findingSettings
                text: catalog.i18nc("@action:menu", "Hide this setting")
                onTriggered:
                {
                    definitionsModel.hide(contextMenu.key)
                }
            }
            Cura.MenuItem
            {
                //: Settings context menu action
                text:
                {
                    if (contextMenu.settingVisible)
                    {
                        return catalog.i18nc("@action:menu", "Don't show this setting")
                    }
                    else
                    {
                        return catalog.i18nc("@action:menu", "Keep this setting visible")
                    }
                }
                visible: findingSettings
                onTriggered:
                {
                    if (contextMenu.settingVisible)
                    {
                        definitionsModel.hide(contextMenu.key)
                    }
                    else
                    {
                        definitionsModel.show(contextMenu.key)
                    }
                }
            }
            Cura.MenuItem
            {
                //: Settings context menu action
                text: catalog.i18nc("@action:menu", "Configure setting visibility...")

                onTriggered: Cura.Actions.configureSettingVisibility.trigger(contextMenu)
            }
        }

        UM.SettingPropertyProvider
        {
            id: machineExtruderCount

            containerStackId: Cura.MachineManager.activeMachine !== null ? Cura.MachineManager.activeMachine.id : ""
            key: "machine_extruder_count"
            watchedProperties: [ "value" ]
            storeIndex: 0
        }
    }
}