import QtQuick 2.12
import QtQuick.Controls 2.3
import QtQuick.Layouts 1.3
import QtQml.Models 2.3

import utils 1.0
import shared.controls 1.0

import StatusQ.Controls 0.1

import shared.views 1.0
import shared.panels 1.0
import shared.popups 1.0
import "../panels"
import "../controls"

// TODO: replace with StatusModal
ModalPopup {
    id: popup

    property var chatSectionModule
    property var store
    property var pubKeys: []
    property bool selectChatMembers: true
    property int memberCount: 1
    readonly property int maxMembers: 10
    property string channelNameValidationError: ""

    onOpened: {
        groupName.text = "";
        searchBox.text = "";
        selectChatMembers = true;
        memberCount = 1;
        pubKeys = [];

        chatSectionModule.populateMyContacts()

        noContactsRect.visible = !chatSectionModule.listOfMyContacts.rowCount() > 0
        contactList.visible = !noContactsRect.visible;
        if (!contactList.visible) {
            memberCount = 0;
        }
    }

    onClosed: chatSectionModule.clearMyContacts()

    function validate() {
        if (groupName.text === "") {
            //% "You need to enter a channel name"
            channelNameValidationError = qsTrId("you-need-to-enter-a-channel-name")
        } else if (!Utils.isValidChannelName(groupName.text)) {
            //% "The channel name can only contain lowercase letters, numbers and dashes"
            channelNameValidationError = qsTrId("the-channel-name-can-only-contain-lowercase-letters--numbers-and-dashes")
        } else {
            channelNameValidationError = ""
        }

        return channelNameValidationError === ""
    }

    function doJoin() {
        if (!validate()) {
            return
        }
        if (pubKeys.length === 0) {
            return;
        }

        popup.chatSectionModule.createGroupChat(Utils.filterXSS(groupName.text), JSON.stringify(pubKeys));
        popup.close();
    }

    function groupNameFilter(text) {
        groupName.text = text.toLowerCase().replace(' ', '-');
    }

    header: Item {
      height: 30
      width: parent.width
   
      StyledText {
          id: lblNewGroup
          //% "New group chat"
          text: qsTrId("new-group-chat")
          anchors.left: parent.left
          font.bold: true
          font.pixelSize: 17
          anchors.top: parent.top
      }

      StyledText {
          anchors.top: lblNewGroup.bottom
          //% "%1 / 10 members"
          text: qsTrId("%1-/-10-members").arg(memberCount)
          color: Style.current.secondaryText
          font.pixelSize: 15
      }
    }

    SearchBox {
        id: searchBox
        visible: selectChatMembers
        iconWidth: 17
        iconHeight: 17
        customHeight: 44
        fontPixelSize: 15
    }

    Input {
        id: groupName
        //% "Group name"
        placeholderText: qsTrId("group-name")
        visible: !selectChatMembers
        validationError: channelNameValidationError
        onTextEdited: function (text) {
            groupNameFilter(text)
        }
        validator: RegExpValidator { regExp: /^[a-zA-Z0-9\-\ ]+$/ }
    }

    NoFriendsRectangle {
        id: noContactsRect
        visible: false
        anchors.top: groupName.bottom
        anchors.topMargin: Style.current.xlPadding
        anchors.horizontalCenter: parent.horizontalCenter
    }

    ContactListPanel {
        id: contactList
        anchors.fill: parent
        model: chatSectionModule.listOfMyContacts
        searchString: searchBox.text.toLowerCase()
        selectMode: selectChatMembers && memberCount < maxMembers
        anchors.topMargin: 50
        anchors.top: searchBox.bottom
        onItemChecked: function(pubKey, itemChecked){
            var idx = pubKeys.indexOf(pubKey)
            if(itemChecked){
                if(idx === -1){
                    pubKeys.push(pubKey)
                }
            } else {
                if(idx > -1){
                    pubKeys.splice(idx, 1);
                }
            }
            memberCount = pubKeys.length + 1;
            btnSelectMembers.enabled = pubKeys.length > 0
        }
    }

    footer: Item {
        width: parent.width
        height: btnSelectMembers.height

        StatusRoundButton {
            id: btnSelectMembers
            visible: selectChatMembers
            anchors.bottom: parent.bottom
            anchors.right: parent.right
            icon.name: "arrow-right"
            icon.width: 20
            icon.height: 16
            enabled: !!pubKeys.length
            onClicked : {
                if(pubKeys.length > 0)
                    selectChatMembers = false
                    searchBox.text = ""
                    groupName.forceActiveFocus(Qt.MouseFocusReason)
            }
        }

        StatusRoundButton {
            id: btnBack
            visible: !selectChatMembers
            anchors.bottom: parent.bottom
            anchors.left: parent.left
            icon.name: "arrow-right"
            icon.width: 20
            icon.height: 16
            icon.rotation: 180
            onClicked : {
                selectChatMembers = true
            }
        }

        StatusButton {
            visible: !selectChatMembers
            anchors.bottom: parent.bottom
            anchors.right: parent.right
            //% "Create Group Chat"
            text: qsTrId("create-group-chat")
            enabled: groupName.text !== ""
            onClicked : doJoin()
        }
    }
}