import QtQuick 2.13
import QtQuick.Controls 2.13
import QtQuick.Layouts 1.13
import "../../../../imports"
import "../../../../shared"
import "../../../../shared/status"
import "./"

ModalPopup {
    property string validationError: ""

    property string pubKey : "";
    property string ensUsername : "";

    property bool loading: false;
    
    function validate() {
        if (!Utils.isChatKey(chatKey.text) && !Utils.isValidETHNamePrefix(chatKey.text)) {
            validationError = "This needs to be a valid chat key or ENS username";
            ensUsername.text = "";
        } else if (profileModel.profile.pubKey === chatKey.text) {
            validationError = qsTr("Can't chat with yourself");
        } else {
            validationError = ""
        }
        return validationError === ""
    }

    property var resolveENS: Backpressure.debounce(popup, 500, function (ensName){
        chatsModel.resolveENS(ensName)
        loading = true
    });

    function onKeyReleased(){
        if (!validate()) {
            return;
        }

        chatKey.text = chatKey.text.trim();
        
        if(Utils.isChatKey(chatKey.text)){
            pubKey = chatKey.text;
            ensUsername.text = "";
            return;
        }
        
        Qt.callLater(resolveENS, chatKey.text)
    }

    function doJoin() {
        if (!validate() || pubKey.trim() === "" || validationError !== "") return;
        if(Utils.isChatKey(chatKey.text)){
            chatsModel.joinChat(pubKey, Constants.chatTypeOneToOne);
        } else {
            chatsModel.joinChatWithENS(pubKey, chatKey.text);
        }
            
        popup.close();
    }

    id: popup
    //% "New chat"
    title: qsTrId("new-chat")

    onOpened: {
        chatKey.text = "";
        pubKey = "";
        ensUsername.text = "";
        chatKey.forceActiveFocus(Qt.MouseFocusReason)
        noContactsRect.visible = !profileModel.contacts.list.hasAddedContacts()
    }

    Input {
        id: chatKey
        //% "Enter ENS username or chat key"
        placeholderText: qsTrId("enter-contact-code")
        Keys.onEnterPressed: doJoin()
        Keys.onReturnPressed: doJoin()
        validationError: popup.validationError
        Keys.onReleased: {
            onKeyReleased();
        }

        Connections {
            target: chatsModel
            onEnsWasResolved: {
                if(chatKey.text == ""){
                    ensUsername.text == "";
                    pubKey = "";
                } else if(resolvedPubKey == ""){
                    //% "User not found"
                    ensUsername.text = qsTrId("user-not-found");
                    pubKey = "";
                } else {
                    if (profileModel.profile.pubKey === resolvedPubKey) {
                        validationError = qsTr("Can't chat with yourself");
                    } else {
                        ensUsername.text = chatsModel.formatENSUsername(chatKey.text) + " • " + Utils.compactAddress(resolvedPubKey, 4)
                        pubKey = resolvedPubKey;
                    }
                }
                loading = false;
            }
        }
    }
    
    StyledText {
        id: ensUsername
        anchors.top: chatKey.bottom
        anchors.topMargin: Style.current.padding
        color: Style.current.darkGrey
        font.pixelSize: 12
    }

    Item {
        anchors.top: ensUsername.bottom
        anchors.topMargin: 90
        anchors.fill: parent

        ScrollView {
            anchors.fill: parent
            Layout.fillWidth: true
            Layout.fillHeight: true

            ScrollBar.horizontal.policy: ScrollBar.AlwaysOff
            ScrollBar.vertical.policy: contactListView.contentHeight > contactListView.height ? ScrollBar.AlwaysOn : ScrollBar.AlwaysOff

            ListView {
                anchors.fill: parent
                spacing: 0
                clip: true
                id: contactListView
                model: profileModel.contacts.list
                delegate: Contact {
                    showCheckbox: false
                    pubKey: model.pubKey
                    isContact: model.isContact
                    isUser: false
                    name: model.name
                    address: model.address
                    identicon: model.thumbnailImage || model.identicon
                    onItemChecked: function(pubKey, itemChecked){
                        chatsModel.joinChat(pubKey, Constants.chatTypeOneToOne);
                        popup.close()
                    }
                    visible: model.isContact && (chatKey.text === "" ||
                        model.name.toLowerCase().includes(chatKey.text.toLowerCase()) ||
                        model.address.toLowerCase().includes(chatKey.text.toLowerCase()))
                }
            }

            Rectangle {
                id: noContactsRect
                width: 260
                anchors.centerIn: parent
                StyledText {
                    id: noContacts
                    //% "You don’t have any contacts yet. Invite your friends to start chatting."
                    text: qsTrId("you-don-t-have-any-contacts-yet--invite-your-friends-to-start-chatting-")
                    color: Style.current.darkGrey
                    anchors.top: parent.top
                    anchors.topMargin: Style.current.padding
                    anchors.left: parent.left
                    anchors.right: parent.right
                    wrapMode: Text.WordWrap
                    horizontalAlignment: Text.AlignHCenter
                }
                StatusButton {
                    //% "Invite friends"
                    text: qsTrId("invite-friends")
                    anchors.horizontalCenter: parent.horizontalCenter
                    anchors.top: noContacts.bottom
                    anchors.topMargin: Style.current.xlPadding
                    onClicked: {
                        inviteFriendsPopup.open()
                    }
                }
                InviteFriendsPopup {
                    id: inviteFriendsPopup
                }
            }
        }
    }

    footer: StatusButton {
        anchors.right: parent.right
        id: submitBtn
        state: loading ? "pending" : "default"
        text: qsTr("Start chat")
        enabled: pubKey !== ""
        onClicked : doJoin()
    }
}

/*##^##
Designer {
    D{i:0;height:300;width:300}
}
##^##*/