import QtQuick 2.13
import QtQuick.Controls 2.13
import QtQuick.Layouts 1.3
import QtGraphicalEffects 1.0

import utils 1.0
import shared.panels 1.0
import shared.stores.send 1.0

import StatusQ.Core 0.1
import StatusQ.Core.Theme 0.1
import StatusQ.Controls 0.1
import StatusQ.Components 0.1
//TODO improve this!
import AppLayouts.Chat.stores 1.0

Popup {
    id: root

    property var store
    required property TransactionStore transactionStore

    signal stickerSelected(string hashId, string packId, string url)

    QtObject {
        id: d

        // FIXME: move me to store
        readonly property int installedPacksCount: root.store.stickersModuleInst.numInstalledStickerPacks
        readonly property var recentStickers: root.store.stickersModuleInst.recent
        readonly property var stickerPackList: store.stickersModuleInst.stickerPacks
        readonly property bool stickerPacksLoaded: store.stickersModuleInst.packsLoaded
        readonly property bool stickerPacksLoadFailed: store.stickersModuleInst.packsLoadFailed
        readonly property bool stickerPacksLoading: !stickerPacksLoaded && !stickerPacksLoadFailed

        function loadStickers() {
            store.stickersModuleInst.loadStickers()
        }

        function getRecentStickers() {
            store.stickersModuleInst.getRecentStickers()
        }

        function getInstalledStickerPacks() {
            store.stickersModuleInst.getInstalledStickerPacks()
        }

        readonly property bool online: root.store.networkConnectionStore.isOnline
        onOnlineChanged: {
            if (online)
                d.loadStickers()
        }
    }

    enabled: !!d.recentStickers && !!d.stickerPackList
    width: 360
    height: 440
    modal: false
    closePolicy: Popup.CloseOnEscape | Popup.CloseOnPressOutsideParent
    background: Rectangle {
        radius: Style.current.radius
        color: Style.current.background
        border.color: Style.current.border
        layer.enabled: true
        layer.effect: DropShadow {
            verticalOffset: 3
            radius: 8
            samples: 15
            fast: true
            cached: true
            color: "#22000000"
        }
    }

    onAboutToShow: {
        d.getInstalledStickerPacks()
        if (!stickerGrid.packId) {
            d.getRecentStickers()
        }
    }

    onClosed: {
        stickerMarket.visible = false
        footerContent.visible = true
        stickersContainer.visible = true
    }

    padding: 0

    ColumnLayout {
        anchors.fill: parent
        spacing: 0

        StatusStickerMarket {
            id: stickerMarket
            visible: false
            Layout.fillWidth: true
            Layout.fillHeight: true
            store: root.store
            transactionStore: root.transactionStore
            stickerPacks: d.stickerPackList
            packId: stickerPackListView.selectedPackId
            marketVisible: d.stickerPacksLoaded && d.online
            onInstallClicked: {
                //starts async task
                stickersModule.install(packId)
            }
            onUninstallClicked: {
                stickersModule.uninstall(packId)
                stickerGrid.model = d.recentStickers
                btnHistory.clicked(null)
            }
            onBackClicked: {
                stickerMarket.visible = false
                footerContent.visible = true
                stickersContainer.visible = true
            }

            Connections {
                target: root.store.stickersModuleInst
                function onStickerPackInstalled(packId) {
                    const idx = stickersModule.stickerPacks.findIndexById(packId, false);
                    if (idx === -1) {
                        return
                    }
                    stickersModule.stickerPacks.findStickersById(packId)
                    stickerGrid.model = stickersModule.stickerPacks.getFoundStickers()
                    stickerPackListView.itemAt(idx).clicked()
                }
            }

            Loader {
                id: marketLoader
                anchors.centerIn: parent
                active: d.stickerPacksLoading
                sourceComponent: loadingImageComponent
            }

            ColumnLayout {
                id: failedToLoadStickersInfo

                anchors.centerIn: parent
                visible: d.stickerPacksLoadFailed || !d.online

                StatusBaseText {
                    text: qsTr("Failed to load stickers")
                    color: Theme.palette.dangerColor1
                }

                StatusButton {
                    objectName: "stickersPopupRetryButton"
                    Layout.alignment: Qt.AlignHCenter
                    text: qsTr("Try again")
                    enabled: d.online

                    onClicked: d.loadStickers()
                }
            }
        }

        Item {
            id: stickersContainer
            Layout.fillWidth: true
            Layout.leftMargin: 4
            Layout.topMargin: 4
            Layout.bottomMargin: 0
            Layout.alignment: Qt.AlignTop | Qt.AlignLeft
            Layout.preferredHeight: 400 - 4

            Item {
                id: noStickerPacks
                anchors.fill: parent
                visible: d.installedPacksCount == 0 && stickersModule.recent.rowCount() === 0

                Image {
                    id: imgNoStickers
                    width: 56
                    height: 56
                    anchors.horizontalCenter: parent.horizontalCenter
                    anchors.top: parent.top
                    anchors.topMargin: 134
                    source: Style.svg("stickers_sad_icon")
                }

                Item {
                    id: noStickersContainer
                    width: parent.width
                    height: 22
                    anchors.top: imgNoStickers.bottom
                    anchors.topMargin: 8

                    StyledText {
                        id: lblNoStickersYet
                        anchors.fill: parent
                        font.pixelSize: 15
                        text: d.installedPacksCount === 0 || !d.online ? qsTr("You don't have any stickers yet")
                                                                       : qsTr("Recently used stickers will appear here")
                        lineHeight: 22
                        horizontalAlignment: Text.AlignHCenter
                    }
                }

                StatusButton {
                    objectName: "stickersPopupGetStickersButton"
                    visible: d.installedPacksCount === 0
                    text: qsTr("Get Stickers")
                    enabled: d.online
                    anchors.top: noStickersContainer.bottom
                    anchors.topMargin: Style.current.padding
                    anchors.horizontalCenter: parent.horizontalCenter
                    onClicked: {
                        stickersContainer.visible = false
                        stickerMarket.visible = true
                        footerContent.visible = false
                    }
                }
            }

            StatusStickerList {
                id: stickerGrid
                objectName: "statusStickerPopupStickerGrid"
                anchors.fill: parent
                model: d.recentStickers
                packId: stickerPackListView.selectedPackId
                onStickerClicked: {
                    root.stickerSelected(hash, packId, url)
                    root.close()
                }
            }

            Component {
                id: loadingImageComponent
                StatusLoadingIndicator {
                    width: 50
                    height: 50
                }
            }

            Loader {
                id: loadingGrid
                active: d.stickerPacksLoading
                sourceComponent: loadingImageComponent
                anchors.centerIn: parent
            }
        }

        RowLayout {
            id: footerContent
            Layout.fillWidth: true
            Layout.preferredHeight: 44
            Layout.rightMargin: Style.current.padding / 2
            Layout.leftMargin: Style.current.padding / 2
            spacing: Style.current.padding / 2

            StatusRoundButton {
                id: btnAddStickerPack
                Layout.preferredWidth: 24
                Layout.preferredHeight: 24
                icon.name: "add"
                type: StatusFlatRoundButton.Type.Secondary
                loading: d.stickerPacksLoading
                onClicked: {
                    stickersContainer.visible = false
                    stickerMarket.visible = true
                    footerContent.visible = false
                }
            }

            StatusTabBarIconButton {
                id: btnHistory
                icon.name: "time"
                highlighted: true
                onClicked: {
                    highlighted = true
                    stickerPackListView.selectedPackId = ""
                    d.getRecentStickers()
                    stickerGrid.model = d.recentStickers
                }
            }

            StatusScrollView {
                id: scrollView

                Layout.fillWidth: true
                Layout.fillHeight: true
                padding: 0
                contentHeight: availableHeight
                ScrollBar.vertical.policy: ScrollBar.AlwaysOff

                RowLayout {
                    height: scrollView.availableHeight
                    spacing: footerContent.spacing

                    Repeater {
                        id: stickerPackListView
                        property string selectedPackId
                        model: d.stickerPackList
                        visible: d.stickerPacksLoaded

                        delegate: StatusStickerPackIconWithIndicator {
                            id: packIconWithIndicator
                            visible: installed
                            Layout.alignment: Qt.AlignVCenter
                            selected: stickerPackListView.selectedPackId === packId
                            source: thumbnail
                            onClicked: {
                                btnHistory.highlighted = false
                                stickerPackListView.selectedPackId = packId
                                stickerGrid.model = stickers
                            }
                        }
                    }
                    Repeater {
                        id: loadingStickerPackListView
                        model: d.stickerPacksLoading ? 7 : 0

                        delegate: Rectangle {
                            Layout.alignment: Qt.AlignVCenter
                            Layout.preferredWidth: 24
                            Layout.preferredHeight: 24
                            radius: width / 2
                            color: Style.current.backgroundHover
                        }
                    }
                    Item {
                        Layout.fillWidth: true
                    }
                }
            }
        }
    }
}