import QtQuick 2.15
import QtQuick.Layouts 1.15
import QtQuick.Window 2.15

import StatusQ.Core 0.1
import StatusQ.Core.Theme 0.1
import StatusQ.Components 0.1

import shared.controls 1.0
import shared.status 1.0
import shared.stores 1.0
import utils 1.0

import "./private"

CalloutCard {
    id: root

    property UtilsStore utilsStore

    readonly property LinkData linkData: LinkData { }
    readonly property UserData userData: UserData { }
    readonly property CommunityData communityData: CommunityData { }
    readonly property ChannelData channelData: ChannelData { }

    property int type: Constants.LinkPreviewType.NoPreview

    property bool highlight: false

    signal clicked(var mouse)

    borderWidth: 1
    implicitHeight: 290
    implicitWidth: 324+2*borderWidth
    hoverEnabled: true
    dropShadow: d.highlight
    borderColor: d.highlight ? Theme.palette.background : Theme.palette.border

    Behavior on borderColor {
        ColorAnimation { duration: 200 }
    }

    contentItem: ColumnLayout {
        Loader {
            id: bannerImageLoader
            Layout.fillWidth: true
            Layout.leftMargin: d.bannerImageMargins
            Layout.rightMargin: d.bannerImageMargins
            Layout.topMargin: d.bannerImageMargins
            Layout.preferredHeight: 170
            Layout.preferredWidth: 324
            active: !!d.bannerImageSource
            sourceComponent: StatusImage {
                id: bannerImage
                asynchronous: true
                source: d.bannerImageSource
                fillMode: Image.PreserveAspectCrop
                layer.enabled: true
                layer.effect: root.clippingEffect
            }
        }
        ColumnLayout {
            Layout.fillWidth: true
            Layout.fillHeight: true
            Layout.margins: 12
            Loader {
                id: userImageLoader
                Layout.alignment: Qt.AlignLeft | Qt.AlignVCenter
                Layout.topMargin: 8
                Layout.bottomMargin: 8
                visible: active
                active: root.type === Constants.LinkPreviewType.StatusContact
                sourceComponent: UserImage {
                    interactive: false
                    imageWidth: 58
                    imageHeight: imageWidth
                    ensVerified: root.userData.ensVerified
                    name: root.userData.name
                    image: root.userData.image
                    colorId: Utils.colorIdForPubkey(root.userData.publicKey)
                    colorHash: Utils.getColorHashAsJson(root.userData.publicKey)
                }
            }
            RowLayout {
                id: titleLayout
                Layout.fillWidth: true
                Layout.fillHeight: true
                Layout.maximumHeight: description.text.length ? 28 : 72
                Layout.minimumHeight: 18
                StatusSmartIdenticon {
                    id: logo
                    Layout.alignment: Qt.AlignTop
                    Layout.preferredWidth: 28
                    Layout.preferredHeight: 28
                    asset.width: width
                    asset.height: height
                    visible: false
                }
                StatusBaseText {
                    id: title
                    objectName: "linkPreviewTitle"
                    // One line centered next to the logo
                    // Two or more lines, or no logo, top aligned
                    readonly property bool centerText: lineCount == 1 && height === logo.height && logo.visible 
                    Layout.fillWidth: true
                    Layout.fillHeight: true
                    Layout.alignment: Qt.AlignTop
                    Layout.topMargin: verticalAlignment === Text.AlignTop && contentHeight < logo.height ? (logo.height - contentHeight) / 2 : 0
                    font.pixelSize: 13
                    font.weight: Font.Medium
                    wrapMode: Text.Wrap
                    elide: Text.ElideRight
                    verticalAlignment: centerText ? Text.AlignVCenter : Text.AlignTop
                    visible: text.length
                }
            }
            EmojiHash {
                Layout.topMargin: 4
                Layout.bottomMargin: 6
                visible: root.type === Constants.LinkPreviewType.StatusContact
                emojiHash: root.utilsStore.getEmojiHash(root.userData.publicKey)
                oneRow: true
                objectName: "linkPreviewEmojiHash"
            }
            StatusBaseText {
                id: description
                Layout.fillWidth: true
                Layout.fillHeight: true
                font.pixelSize: 12
                wrapMode: Text.Wrap
                elide: Text.ElideRight
                color: Theme.palette.baseColor1
                visible: description.text.length
            }
            Loader {
                id: footerLoader
                Layout.fillWidth: true
                visible: active
                sourceComponent: FooterText {
                }
            }
        }
    }

    MouseArea {
        anchors.fill: root
        hoverEnabled: true
        cursorShape: Qt.PointingHandCursor
        acceptedButtons: Qt.LeftButton | Qt.RightButton
        onClicked: root.clicked(mouse)
    }

    component FooterText: StatusBaseText {
        font.pixelSize: 12
        lineHeight: 16
        lineHeightMode: Text.FixedHeight
        color: Theme.palette.baseColor1
        elide: Text.ElideRight
        wrapMode: Text.Wrap
        verticalAlignment: Text.AlignBottom
        text: root.linkData.domain
        maximumLineCount: 1
    }

    Component {
        id: channelFooterComponent
        RowLayout {
            spacing: 4
            FooterText {
                Layout.fillHeight: true
                text: qsTr("Channel in")
                verticalAlignment: Text.AlignVCenter
            }
            StatusRoundedImage {
                Layout.preferredHeight: 16
                Layout.preferredWidth: height
                image.source: channelData.communityData.image                
            }
            FooterText {
                Layout.fillHeight: true
                Layout.fillWidth: true
                text: channelData.communityData.name
                verticalAlignment: Text.AlignVCenter
                color: Theme.palette.directColor1
            }
        }
    }

    Component {
        id: communityFooterComponent
        RowLayout {
            spacing: 2
            StatusIcon {
                icon: "group"
                color: Theme.palette.directColor1
                width: 16
                height: width
            }
            FooterText {
                Layout.fillHeight: true
                Layout.fillWidth: !communityData.activeMembersCountAvailable
                color: Theme.palette.directColor1
                text: LocaleUtils.numberToLocaleStringInCompactForm(communityData.membersCount)
                verticalAlignment: Text.AlignVCenter
            }
            StatusIcon {
                Layout.leftMargin: 6
                icon: "active-members"
                color: Theme.palette.directColor1
                width: 16
                height: width
                visible: communityData.activeMembersCountAvailable
            }
            FooterText {
                Layout.fillWidth: true
                Layout.fillHeight: true
                color: Theme.palette.directColor1
                text: LocaleUtils.numberToLocaleStringInCompactForm(communityData.activeMembersCount)
                verticalAlignment: Text.AlignVCenter
                visible: communityData.activeMembersCountAvailable
            }
        }
    }
    
    //behavior
    states: [
        State {
            name: "noPreview"
            when: root.type === Constants.LinkPreviewType.NoPreview
            PropertyChanges { target: root; visible: false }
        },
        State {
            name: "linkPreview"
            when: root.type === Constants.LinkPreviewType.Standard
            PropertyChanges { 
                target: logo
                visible: !!root.linkData.image
                name: root.linkData.domain
                asset.name: root.linkData.image
                asset.isImage: !!root.linkData.image
                asset.color: Theme.palette.baseColor2
            }
            PropertyChanges { target: bannerImageLoader; visible: true }
            PropertyChanges { target: title; text: root.linkData.title }
            PropertyChanges { target: description; text: root.linkData.description }
            PropertyChanges { target: d; bannerImageSource: root.linkData.thumbnail }
        },
        State {
            name: "community"
            when: root.type === Constants.LinkPreviewType.StatusCommunity
            PropertyChanges { 
                target: logo
                visible: true
                name: root.communityData.name
                asset.name: root.communityData.image
                asset.isImage: !!root.communityData.image
                asset.color: root.communityData.color
            }
            PropertyChanges { target: bannerImageLoader; visible: true }
            PropertyChanges { target: title; text: root.communityData.name }
            PropertyChanges { target: description; text: root.communityData.description }
            PropertyChanges { target: d; bannerImageSource: root.communityData.banner }
            PropertyChanges { target: footerLoader; active: true; visible: !root.communityData.encrypted || root.communityData.joined; sourceComponent: communityFooterComponent }
        },
        State {
            name: "channel"
            when: root.type === Constants.LinkPreviewType.StatusCommunityChannel
            PropertyChanges { 
                target: logo
                visible: true
                name: root.channelData.name
                asset.name: ""
                asset.isImage: false
                asset.color: root.channelData.color
                asset.emoji: root.channelData.emoji
            }
            PropertyChanges { target: bannerImageLoader; visible: true }
            PropertyChanges { target: title; text: "#" + root.channelData.name }
            PropertyChanges { target: description; text: root.channelData.description || root.channelData.communityData.description }
            PropertyChanges { target: d; bannerImageSource: root.channelData.communityData.banner }
            PropertyChanges { target: footerLoader; active: true; visible: true; sourceComponent: channelFooterComponent }
        },
        State {
            name: "contact"
            when: root.type === Constants.LinkPreviewType.StatusContact
            PropertyChanges { target: root; implicitHeight: 187 }
            PropertyChanges { target: bannerImageLoader; visible: false }
            PropertyChanges { target: footerLoader; active: false; visible: !root.userData.bio; Layout.fillHeight: true }
            PropertyChanges { target: title; text: root.userData.name }
            PropertyChanges { target: description; text: root.userData.bio; Layout.minimumHeight: 32; visible: true }
        }
    ]

    QtObject {
        id: d
        property real bannerImageMargins: 1 / Screen.devicePixelRatio // image size isn't pixel perfect..
        property bool highlight: root.highlight || root.hovered
        property string bannerImageSource: ""
    }
}