import QtQuick 2.12
import QtQuick.Controls 2.3
import QtGraphicalEffects 1.13
import QtQuick.Dialogs 1.3
import "../../../../imports"
import "../../../../shared"

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

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.contentComponent.categoryName.text = categoryName
            channels = JSON.parse(chatsModel.communities.activeCommunity.getChatIdsByCategory(categoryId))
        }
        popup.contentComponent.categoryName.forceActiveFocus(Qt.MouseFocusReason)
    }
    onClosed: destroy()

    function isFormValid() {
        return Utils.validateAndReturnError(popup.contentComponent.categoryName.text,
                                            categoryNameValidator,
                                            qsTr("category name"),
                                            maxCategoryNameLength) === ""
    }

    header.title: isEdit ?
            qsTr("Edit category") : 
            qsTr("New category")

    content: ScrollView {
        id: scrollView

        width: popup.width
        height: Math.min(content.height, 432)

        property ScrollBar vScrollBar: ScrollBar.vertical
        property alias categoryName: nameInput

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

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

        Column {
            id: content
            width: parent.width

            StatusModalDivider {
                bottomPadding: 8
            }

            Item {
                width: parent.width
                height: 76
                Input {
                    id: nameInput
                    width: parent.width -32

                    anchors.centerIn: parent
                    anchors.left: undefined
                    anchors.right: undefined

                    placeholderText: qsTr("Category title")
                    maxLength: maxCategoryNameLength

                    onTextEdited: {
                        validationError = Utils.validateAndReturnError(text,
                                                                      categoryNameValidator,
                                                                      qsTr("category name"),
                                                                      maxCategoryNameLength)
                    }
                }
            }

            StatusModalDivider {
                topPadding: 8
                bottomPadding: 8
            }

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

            ListView {
                id: communityChannelList
                height: childrenRect.height
                model: chatsModel.communities.activeCommunity.chats
                anchors.left: parent.left
                anchors.right: parent.right

                delegate: StatusListItem {
                    anchors.horizontalCenter: parent.horizontalCenter
                    width: parent.width - 32
                    visible: popup.isEdit ? 
                        model.category === popup.categoryId || model.categoryId === "" : 
                        model.categoryId === ""

                    title: "#" + model.name
                    icon.isLetterIdenticon: true
                    icon.background.color: model.color
                    sensor.onClicked: channelItemCheckbox.checked = !channelItemCheckbox.checked

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

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

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

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

            StatusModalDivider {
                topPadding: 8
            }

            Component {
                id: deleteCategoryConfirmationDialogComponent
                ConfirmationDialog {
                    btnType: "warn"
                    height: 216
                    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 ?
                qsTr("Save") :
                qsTr("Create")
            onClicked: {
                if (!isFormValid()) {
                    scrollView.scrollBackUp()
                    return
                }

                let error = ""

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

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

                popup.close()
            }
        }
    ]

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