//  SPDX-FileCopyrightText: 2023 Yury Gubich <blue@macaw.me>
//  SPDX-License-Identifier: GPL-3.0-or-later

import QtQuick
import QtQuick.Controls
import QtQuick.Layouts

import magpie
import magpie.Forms as Forms
import magpie.Components as Components

Page {
    id: page
    QtObject {
      id: priv
      property bool loggingIn: false
    }

    signal pickServer(address: string)

    // title: qsTr("Welcome")

    Column {
        id: column
        anchors.centerIn: parent
        spacing: 5

        Label {
            anchors.horizontalCenter: parent.horizontalCenter
            text: qsTr("Welcome to Magpie!")
            font {
                pixelSize: 22
                bold: true
            }
        }

        Row {
            anchors.horizontalCenter: parent.horizontalCenter
            spacing: 5

            Label {
                horizontalAlignment: Label.AlignRight
                text: qsTr("Current server:")
            }
            Label {
                horizontalAlignment: Label.AlignLeft
                text: Magpie.state === Magpie.NoServer ? qsTr("choose") : Magpie.address
                font {
                    italic: true
                    underline: true
                }

                MouseArea {
                    anchors.fill: parent
                    onClicked: pickServer(Magpie.address)
                }
            }
        }

        Components.Modal {
            inProgress: Magpie.state === Magpie.Authenticating
            visible: !priv.loggingIn && Magpie.state === Magpie.Authenticating
            closable: Magpie.state === Magpie.NotAuthenticated
            status: "Logging into " + Magpie.address + "..."
        }

        Item {
            visible: priv.loggingIn || Magpie.state === Magpie.NotAuthenticated || Magpie.state === Magpie.Authenticating

            width: page.width
            height: stack.currentItem ? stack.currentItem.implicitHeight: 0

            StackView {
                property string pendingLogin: ""
                property string pendingPassword: ""

                id: stack
                initialItem: loginForm
                anchors.fill: parent
                anchors.topMargin: 20

                Component {
                    id: loginForm
                    Forms.Login {
                        onRegister: stack.replace(registerForm)
                        onLoggingIn: function (value) {
                            priv.loggingIn = value;
                        }
                        Component.onCompleted: {
                            if (stack.pendingLogin && stack.pendingPassword)
                                this.login(stack.pendingLogin, stack.pendingPassword)

                            stack.pendingLogin = "";
                            stack.pendingPassword = "";
                        }
                        Component.onDestruction: priv.loggingIn = false
                    }
                }

                Component {
                    id: registerForm
                    Forms.Register {
                        onLogin: stack.replace(loginForm, StackView.PopTransition)
                        onSuccess: function(login, password) {
                            stack.pendingLogin = login;
                            stack.pendingPassword = password;
                            stack.replace(loginForm, StackView.PopTransition);
                        }
                    }
                }
            }
        }
    }
}