import QtQuick 2.12
import QtQuick.Controls 2.3
import QtQuick.Dialogs 1.3

import StatusQ.Core 0.1
import StatusQ.Core.Theme 0.1
import StatusQ.Components 0.1
import StatusQ.Controls 0.1
import StatusQ.Controls.Validators 0.1
import StatusQ.Popups 0.1

import utils 1.0
import "../../../../../shared/popups"

StatusModal {
    property string communityId
    property string categoryId
    property string categoryName: ""
    property var channels: []

    property bool isEdit: false

    readonly property int maxCategoryNameLength: 30
    readonly property var categoryNameValidator: Utils.Validate.NoEmpty
                                                 | Utils.Validate.TextLength

    id: popup

    onOpened: {
        if(isEdit){
            popup.contentItem.categoryName.input.text = categoryName
            channels = JSON.parse(chatsModel.communities.activeCommunity.getChatIdsByCategory(categoryId))
        }
        popup.contentItem.categoryName.input.forceActiveFocus(Qt.MouseFocusReason)
    }
    onClosed: destroy()

    function isFormValid() {
        return contentItem.categoryName.valid
    }

    header.title: isEdit ?
            //% "Edit category"
            qsTrId("edit-category") : 
            //% "New category"
            qsTrId("new-category")

    contentItem: Column {
                
        width: popup.width
        property alias categoryName: nameInput

        StatusInput {
            id: nameInput
            charLimit: maxCategoryNameLength
            input.placeholderText: qsTr("Category title")
            validators: [StatusMinLengthValidator {
                minLength: 1
                errorMessage: Utils.getErrorMessage(errors, qsTr("category name"))
            }]
        }

        StatusModalDivider {
            topPadding: 8
            bottomPadding: 8
        }

        ScrollView {
            id: scrollView

            width: popup.width
            height: Math.min(content.height, 300)
            anchors.horizontalCenter: parent.horizontalCenter

            property ScrollBar vScrollBar: ScrollBar.vertical

            contentHeight: content.height
            ScrollBar.horizontal.policy: ScrollBar.AlwaysOff
            clip: true

            function scrollBackUp() {
                vScrollBar.setPosition(0)
            }

            Item {
                id: content
                width: parent.width
                height: channelsLabel.height + communityChannelList.height

                Item {
                    id: channelsLabel
                    anchors.horizontalCenter: parent.horizontalCenter
                    width: parent.width - 32
                    height: 34
                    StatusBaseText {
                        //% "Channels"
                        text: qsTrId("channels")
                        anchors.bottom: parent.bottom
                        anchors.bottomMargin: 4
                        font.pixelSize: 15
                        color: Theme.palette.baseColor1
                    }
                }

                ListView {
                    id: communityChannelList

                    anchors.top: channelsLabel.bottom
                    height: childrenRect.height
                    width: parent.width
                    model: chatsModel.communities.activeCommunity.chats
                    interactive: false
                    clip: true

                    delegate: StatusListItem {
                        anchors.horizontalCenter: parent.horizontalCenter
                        visible: popup.isEdit ? 
                            model.categoryId === popup.categoryId || model.categoryId === "" : 
                            model.categoryId === ""
                        height: visible ? implicitHeight : 0
                        title: "#" + model.name
                        icon.isLetterIdenticon: true
                        icon.background.color: model.color
                        sensor.onClicked: channelItemCheckbox.checked = !channelItemCheckbox.checked

                        components: [
                            StatusCheckBox {
                                id: channelItemCheckbox
                                checked: popup.isEdit ? popup.channels.indexOf(model.id) > - 1 : false
                                onCheckedChanged: {
                                    var idx = popup.channels.indexOf(model.id)
                                    if(checked){
                                        if(idx === -1){
                                            popup.channels.push(model.id)
                                        }
                                    } else {
                                        if(idx > -1){
                                            popup.channels.splice(idx, 1);
                                        }
                                    }
                                }
                            }
                        ]
                    }
                }
            }
        }

        StatusModalDivider {
            visible: deleteCategoryButton.visible
            topPadding: 8
            bottomPadding: 8
        }

        StatusListItem {
            id: deleteCategoryButton
            anchors.horizontalCenter: parent.horizontalCenter
            visible: isEdit

            //% "Delete category"
            title: qsTrId("delete-category")
            icon.name: "delete"
            type: StatusListItem.Type.Danger
            sensor.onClicked: {
                openPopup(deleteCategoryConfirmationDialogComponent, {
                    //% "Delete %1 category"
                    title: qsTrId("delete--1-category").arg(popup.contentItem.categoryName.input.text),
                    //% "Are you sure you want to delete %1 category? Channels inside the category won’t be deleted."
                    confirmationText: qsTrId("are-you-sure-you-want-to-delete--1-category--channels-inside-the-category-won-t-be-deleted-").arg(popup.contentItem.categoryName.input.text)
                    
                })
            }
        }

        Item {
            height: 8
            width: parent.width
        }

        Component {
            id: deleteCategoryConfirmationDialogComponent
            ConfirmationDialog {
                btnType: "warn"
                showCancelButton: true
                onClosed: {
                    destroy()
                }
                onCancelButtonClicked: {
                    close();
                }
                onConfirmButtonClicked: function(){
                    const error = chatsModel.communities.deleteCommunityCategory(chatsModel.communities.activeCommunity.id, popup.categoryId)
                    if (error) {
                        creatingError.text = error
                        return creatingError.open()
                    }
                    close();
                    popup.close()
                }
            }
        }
    }

    rightButtons: [
        StatusButton {
            enabled: isFormValid()
            text: isEdit ?
                //% "Save"
                qsTrId("save") :
                //% "Create"
                qsTrId("create")
            onClicked: {
                if (!isFormValid()) {
                    scrollView.scrollBackUp()
                    return
                }

                let error = ""

                if (isEdit) {
                    error = chatsModel.communities.editCommunityCategory(communityId, categoryId, Utils.filterXSS(popup.contentItem.categoryName.input.text), JSON.stringify(channels))
                } else {
                    error = chatsModel.communities.createCommunityCategory(communityId, Utils.filterXSS(popup.contentItem.categoryName.input.text), JSON.stringify(channels))
                }

                if (error) {
                    categoryError.text = error
                    return categoryError.open()
                }

                popup.close()
            }
        }
    ]

    MessageDialog {
        id: categoryError
        title: isEdit ? 
                //% "Error editing the category"
                qsTrId("error-editing-the-category") :
                //% "Error creating the category"
                qsTrId("error-creating-the-category")
        icon: StandardIcon.Critical
        standardButtons: StandardButton.Ok
    }
}