import QtQuick 2.12
import QtQuick.Controls 2.3
import QtGraphicalEffects 1.13
import QtQuick.Dialogs 1.3

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

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

StatusModal {
    property QtObject community: chatsModel.communities.activeCommunity

    property bool isEdit: false

    readonly property int maxCommunityNameLength: 30
    readonly property int maxCommunityDescLength: 140
    readonly property var communityColorValidator: Utils.Validate.NoEmpty
                                                   | Utils.Validate.TextHexColor

    id: popup
    height: 509

    onOpened: {
        if (isEdit) {
            contentItem.communityName.input.text = community.name;
            contentItem.communityDescription.input.text = community.description;
            contentItem.communityColor.color = community.communityColor;
            contentItem.communityColor.colorSelected = true
            if (community.largeImage) {
                contentItem.communityImage.selectedImage = community.largeImage
            }
            membershipRequirementSettingPopup.checkedMembership = community.access
        }
        contentItem.communityName.input.forceActiveFocus(Qt.MouseFocusReason)
    }
    onClosed: destroy()

    function isFormValid() {
        return contentItem.communityName.valid && contentItem.communityDescription.valid &&
            Utils.validateAndReturnError(contentItem.communityColor.color.toString().toUpperCase(),
                                        communityColorValidator) === ""
    }

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

    contentItem: ScrollView {

        id: scrollView

        property ScrollBar vScrollBar: ScrollBar.vertical

        property alias communityName: nameInput
        property alias communityDescription: descriptionTextArea
        property alias communityColor: colorDialog
        property alias communityImage: addImageButton
        property alias imageCropperModal: imageCropperModal

        contentHeight: content.height
        bottomPadding: 8
        width: popup.width

        ScrollBar.horizontal.policy: ScrollBar.AlwaysOff

        clip: true

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

        Column {
            id: content
            width: popup.width
            spacing: 8

            Item {
                height: 8
                width: parent.width
            }

            StatusInput {
                id: nameInput
                label: qsTr("Name your community")
                charLimit: maxCommunityNameLength
                input.placeholderText: qsTr("A catchy name")
                validators: [StatusMinLengthValidator {
                    minLength: 1
                    errorMessage: Utils.getErrorMessage(errors, "community name")
                }]
            }

            StatusInput {
                id: descriptionTextArea
                label: qsTr("Description")
                charLimit: maxCommunityDescLength

                input.placeholderText: qsTr("What your community is about")
                input.multiline: true
                input.implicitHeight: 88

                validators: [StatusMinLengthValidator {
                    minLength: 1
                    errorMessage: Utils.getErrorMessage(errors, "community description")
                }]
            }

            StatusBaseText {
                id: thumbnailText
                //% "Thumbnail image"
                text: qsTrId("thumbnail-image")
                font.pixelSize: 15
                color: Theme.palette.directColor1
                anchors.left: parent.left
                anchors.leftMargin: 16
                anchors.topMargin: 8
            }

            Item {
                width: parent.width
                height: addImageButton.height + 32

                Rectangle {
                    id: addImageButton
                    color: imagePreview.visible ? "transparent" : Style.current.inputBackground
                    width: 128
                    height: width
                    radius: width / 2
                    anchors.centerIn: parent
                    property string selectedImage: ""

                    FileDialog {
                        id: imageDialog
                        //% "Please choose an image"
                        title: qsTrId("please-choose-an-image")
                        folder: shortcuts.pictures
                        nameFilters: [
                            //% "Image files (*.jpg *.jpeg *.png)"
                            qsTrId("image-files----jpg---jpeg---png-")
                        ]
                        onAccepted: {
                            addImageButton.selectedImage = imageDialog.fileUrls[0]
                            imageCropperModal.open()
                        }
                    }

                    Rectangle {
                        id: imagePreviewCropper
                        clip: true
                        width: parent.width
                        height: parent.height
                        radius: parent.width / 2
                        visible: !!addImageButton.selectedImage

                        Image {
                            id: imagePreview
                            visible: !!addImageButton.selectedImage
                            source: addImageButton.selectedImage
                            fillMode: Image.PreserveAspectFit
                            width: parent.width
                            height: parent.height
                        }
                        layer.enabled: true
                        layer.effect: OpacityMask {
                            maskSource: Rectangle {
                                anchors.centerIn: parent
                                width: imageCropperModal.width
                                height: imageCropperModal.height
                                radius: width / 2
                            }
                        }
                    }

                    Item {
                        id: addImageCenter
                        visible: !imagePreview.visible
                        width: uploadText.width
                        height: childrenRect.height
                        anchors.centerIn: parent

                        SVGImage {
                            id: imageImg
                            source: Style.svg("images_icon")
                            width: 20
                            height: 18
                            anchors.horizontalCenter: parent.horizontalCenter
                        }

                        StatusBaseText {
                            id: uploadText
                            //% "Upload"
                            text: qsTrId("upload")
                            anchors.top: imageImg.bottom
                            anchors.topMargin: 5
                            font.pixelSize: 15
                            color: Theme.palette.baseColor1
                        }
                    }

                    StatusRoundButton {
                        type: StatusRoundButton.Type.Secondary
                        icon.name: "add"
                        anchors.top: parent.top
                        anchors.right: parent.right
                        anchors.rightMargin: Style.current.halfPadding
                        highlighted: sensor.containsMouse
                    }

                    MouseArea {
                        id: sensor
                        hoverEnabled: true
                        anchors.fill: parent
                        cursorShape: Qt.PointingHandCursor
                        onClicked: imageDialog.open()
                    }

                    ImageCropperModal {
                        id: imageCropperModal
                        selectedImage: addImageButton.selectedImage
                        ratio: "1:1"
                    }
                }
            }

            StatusBaseText {
                //% "Community colour"
                text: qsTrId("community-color")
                font.pixelSize: 15
                color: Theme.palette.directColor1
                anchors.left: parent.left
                anchors.leftMargin: 16
            }

            Item {
                anchors.horizontalCenter: parent.horizontalCenter
                height: colorSelectorButton.height + 16
                width: parent.width - 32

                StatusPickerButton {
                    id: colorSelectorButton
                    anchors.top: parent.top
                    anchors.topMargin: 10

                    property string validationError: ""

                    bgColor: colorDialog.colorSelected ? 
                        colorDialog.color : Theme.palette.baseColor2
                    contentColor: colorDialog.colorSelected ? Theme.palette.indirectColor1 : Theme.palette.baseColor1
                    text: colorDialog.colorSelected ?
                        colorDialog.color.toString().toUpperCase() : 
                        //% "Pick a color"
                        qsTrId("pick-a-color")

                    onClicked: colorDialog.open();
                    onTextChanged: {
                        if (colorDialog.colorSelected) {
                            validationError = Utils.validateAndReturnError(text, communityColorValidator)
                        }
                    }

                    ColorDialog {
                        id: colorDialog
                        property bool colorSelected: false
                        color: Theme.palette.primaryColor1
                        onAccepted: colorSelected = true
                    }
                }

                StatusBaseText {
                    text: colorSelectorButton.validationError
                    visible: !!text
                    color: Theme.palette.dangerColor1
                    anchors.top: colorSelectorButton.bottom
                    anchors.topMargin: 4
                    anchors.right: colorSelectorButton.right
                }
            }

            StatusModalDivider {
                topPadding: 8
                bottomPadding: 8
                visible: !isEdit
            }

            StatusListItem {
                anchors.horizontalCenter: parent.horizontalCenter
                visible: !isEdit
                //% "Membership requirement"
                title: qsTrId("membership-title")
                label: {
                    switch (membershipRequirementSettingPopup.checkedMembership) {
                        //% "Require invite from another member"
                        case Constants.communityChatInvitationOnlyAccess: return qsTrId("membership-invite")
                        //% "Require approval"
                        case Constants.communityChatOnRequestAccess: return qsTrId("membership-approval")
                        //% "No requirement"
                        default: return qsTrId("membership-free")
                    }
                }
                sensor.onClicked: membershipRequirementSettingPopup.open()
                components: [
                    StatusIcon {
                        icon: "chevron-down"
                        rotation: 270
                        color: Theme.palette.baseColor1
                    }
                ]
            }

            StatusBaseText {
                visible: !isEdit
                height: visible ? implicitHeight : 0
                wrapMode: Text.WordWrap
                font.pixelSize: 13
                color: Theme.palette.baseColor1
                width: parent.width * 0.78
                //% "You can require new members to meet certain criteria before they can join. This can be changed at any time"
                text: qsTrId("membership-none-placeholder")
                anchors.left: parent.left
                anchors.leftMargin: 16
            }

            // Feature commented temporarily
            /*
            StatusSettingsLineButton {
                id: ensOnlySwitch
                anchors.top: privateExplanation.bottom
                anchors.topMargin: Style.current.padding
                isEnabled: profileModel.profile.ensVerified
                //% "Require ENS username"
                text: qsTrId("membership-ens")
                isSwitch: true
                onClicked: switchChecked = checked

                StatusToolTip {
                    visible: !ensOnlySwitch.isEnabled && ensMouseArea.isHovered
                    //% "You can only enable this setting if you have an ENS name"
                    text: qsTrId("you-can-only-enable-this-setting-if-you-have-an-ens-name")
                }

                MouseArea {
                    property bool isHovered: false

                    id: ensMouseArea
                    enabled: !ensOnlySwitch.isEnabled
                    visible: enabled
                    anchors.fill: parent
                    hoverEnabled: true
                    onEntered: isHovered = true
                    onExited: isHovered = false
                }
            }

            StyledText {
                visible: !isEdit
                height: visible ? implicitHeight : 0
                id: ensExplanation
                anchors.top: ensOnlySwitch.bottom
                wrapMode: Text.WordWrap
                anchors.topMargin: isEdit ? 0 : Style.current.halfPadding
                width: parent.width
                //% "Your community requires an ENS username to be able to join"
                text: qsTrId("membership-ens-description")
            }
            */
        }

    }

    leftButtons: [
        StatusRoundButton {
            id: btnBack
            visible: isEdit
            icon.name: "arrow-right"
            icon.width: 20
            icon.height: 16
            rotation: 180
            onClicked: popup.destroy()
        }
    ]

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

                let error = false;
                if(isEdit) {
                    error = chatsModel.communities.editCommunity(
                        community.id,
                        Utils.filterXSS(popup.contentItem.communityName.input.text),
                        Utils.filterXSS(popup.contentItem.communityDescription.input.text),
                        membershipRequirementSettingPopup.checkedMembership,
                        false,
                        popup.contentItem.communityColor.color.toString().toUpperCase(),
                        // to retain the existing image, pass "" for the image path
                        popup.contentItem.communityImage.selectedImage ===  community.largeImage ? "" : 
                            popup.contentItem.communityImage.selectedImage,
                        popup.contentItem.imageCropperModal.aX,
                        popup.contentItem.imageCropperModal.aY,
                        popup.contentItem.imageCropperModal.bX,
                        popup.contentItem.imageCropperModal.bY
                  )
                } else {
                    error = chatsModel.communities.createCommunity(
                        Utils.filterXSS(popup.contentItem.communityName.input.text),
                        Utils.filterXSS(popup.contentItem.communityDescription.input.text),
                        membershipRequirementSettingPopup.checkedMembership,
                        false, // ensOnlySwitch.switchChecked, // TODO:
                        popup.contentItem.communityColor.color.toString().toUpperCase(),
                        popup.contentItem.communityImage.selectedImage,
                        popup.contentItem.imageCropperModal.aX,
                        popup.contentItem.imageCropperModal.aY,
                        popup.contentItem.imageCropperModal.bX,
                        popup.contentItem.imageCropperModal.bY
                    )
                }

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

                popup.close()
            }
        }
    ]

    MessageDialog {
        id: creatingError
        //% "Error creating the community"
        title: qsTrId("error-creating-the-community")
        icon: StandardIcon.Critical
        standardButtons: StandardButton.Ok
    }

    MembershipRequirementPopup {
        anchors.centerIn: parent
        id: membershipRequirementSettingPopup
    }
}