/*
 * This file is part of the Flowee project
 * Copyright (C) 2024 Tom Zander <tom@flowee.org>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
import QtQuick
import QtQuick.Controls as QQC2
import QtQuick.Layouts
import "../Flowee" as Flowee
import "../mobile" as Mobile;
import Flowee.org.pay;
import Flowee.org.pay.SendSweep;

Mobile.Page {
    id: root
    headerText: qsTr("Sweep coins")

    Item { // data
        QRScanner {
            id: scanner
            scanType: QRScanner.PrivateKeyWIF
            autostart: Intent.sweepKey === ""
            helpText: qsTr("Scan QR (WIF) to find funds", "Please note that WIF and QR are names")
            onFinished: {
                var rc = scanResult
                if (rc === "") { // scanning interrupted
                    thePile.pop();
                    return;
                }
                root.forceActiveFocus();
                sweeper.privKey = rc;
            }
            onAutostartSkipped: {
                /*
                 * This page can be opened as part of the Intent feature,
                 * if it has then we need to set the privatekey and at
                 * the same time clear out the property to prepare for
                 * next usage.
                 */
                var fromIntent = Intent.sweepKey
                if (fromIntent !== "") {
                    Intent.sweepKey = ""; // prepare for next usage.
                    sweeper.privKey = fromIntent;
                }
            }
        }

        SweepHandler {
            id: sweeper
            account: pay.portfolio.current
        }
    }

    Column {
        width: parent.width
        spacing: 6

        Flowee.Label {
            text: qsTr("Sweeping from address:")
            font.bold: true
            width: parent.width
            horizontalAlignment: Qt.AlignHCenter
            wrapMode: Text.Wrap
        }
        Flowee.Label {
            text: sweeper.sweepAddress
            width: parent.width
            horizontalAlignment: Qt.AlignHCenter
            fontSizeMode: Text.HorizontalFit
        }
        Flowee.Label {
            id: coinsLabel
            visible: sweeper.numOutputsFound > 0 || sweeper.prepared
            text: qsTr("Found %1 coins on address.", "this is a simple number", sweeper.numOutputsFound).arg(sweeper.numOutputsFound)
        }
        Flowee.Label {
            visible: sweeper.numTokensFound > 0
            text: qsTr("Ignoring %1 tokens.", "Number of CashTokens", sweeper.numTokensFound).arg(sweeper.numTokensFound)
        }

        Flowee.Progressbar {
            width: parent.width
            visible: !sweeper.prepared && sweeper.error === SweepHandler.NoError
            progress: sweeper.downloadProgress / 1000
        }

        Item {
            id: busyIndicator
            visible: !sweeper.prepared && sweeper.error === SweepHandler.NoError
            width: 105
            height: visible ? 105  : 1
            anchors.horizontalCenter: parent.horizontalCenter
            RotationAnimation on rotation {
                loops: Animation.Infinite
                from: 0
                to: 360
                duration: 6000
                running: busyIndicator.visible
            }

            Repeater {
                model: 6
                Item {
                    width: 105
                    height: 35
                    y: 35
                    Rectangle {
                        color: mainWindow.floweeGreen
                        width: 30
                        height: 30
                        x: 70
                        radius: 15
                    }
                    rotation: 360 / 6 * index
                }
            }
        }

        Rectangle {
            color: mainWindow.errorRedBg
            width: parent.width
            height: sweepErrorLabel.text === "" ? 0 : sweepErrorLabel.height + 20
            radius: 6
            Flowee.Label {
                id: sweepErrorLabel
                width: parent.width - 20
                wrapMode: Text.Wrap
                horizontalAlignment: Qt.AlignHCenter
                anchors.centerIn: parent
                text: {
                    var err = sweeper.error;
                    if (err === SweepHandler.InvalidInput)
                        return qsTr("Failed to understand QR");
                    if (err === SweepHandler.NoBackendFound)
                        return "No indexing servers found";
                    if (err === SweepHandler.FileError)
                        return "File not found error"; // not translated as this should never happen.
                    if (err === SweepHandler.DataInconsistency)
                        return qsTr("Indexer results invalid. Please try again.");

                    if (err === SweepHandler.NoError)
                        return "";
                }
            }
        }

        Flowee.BitcoinAmountLabel {
            font.pixelSize: coinsLabel.font.pixelSize * 1.2
            visible: sweeper.prepared
            value: sweeper.sweepTotal
            anchors.right: parent.right
        }
    }

    Mobile.AccountSelectorWidget {
        id: walletSelector
        visible: !portfolio.singleAccountSetup
        y: 320
        onSelectedAccountChanged: sweeper.account = selectedAccount
    }
    Flowee.Label {
        visible: walletSelector.visible
        anchors.bottom: walletSelector.top
        text: qsTr("Transfer to:")
    }

    Mobile.SlideToApprove {
        id: slideToApprove
        anchors.bottom: parent.bottom
        anchors.bottomMargin: 10
        width: parent.width
        enabled: sweeper.prepared && sweeper.numOutputsFound > 0
        visible: !sweeper.account.needsPinToOpen
        onActivated: {
             root.hideHeader = true;
             background.y = 0;
             background.opacity = 1;
             sweeper.markUserApproved();
        }
    }

    QQC2.Control {
        id: broadcastFeedback
        anchors.leftMargin: -10 // go against the margins Page gave us to show more fullscreen.
        anchors.rightMargin: -10
        anchors.fill: parent
        font.pixelSize: root.font.pixelSize * 1.2

        property int status: sweeper.broadcastStatus
        property double bitcoinAmount: sweeper.sweepTotal
        property int fiatAmount: bitcoinAmount / 100000000 * Fiat.price
        property string targetAddress: sweeper.targetAddress

        states: [
            State {
                name: "notStarted"
                when: broadcastFeedback.status === FloweePay.NotStarted
            },
            State {
                name: "preparing"
                when: broadcastFeedback.status === FloweePay.TxOffered
                PropertyChanges { target: progressIcon; sweepAngle: 90 }
            },
            State {
                name: "sent1" // sent to only one peer
                extend: "preparing"
                when: broadcastFeedback.status === FloweePay.TxSent1
                PropertyChanges { target: progressIcon; sweepAngle: 150 }
                PropertyChanges { target: statusLabel; text:  qsTr("Sending Payment") }
            },
            State {
                name: "waiting" // waiting for possible rejection.
                when: broadcastFeedback.status === FloweePay.TxWaiting
                extend: "preparing"
                PropertyChanges { target: progressIcon; sweepAngle: 320 }
            },
            State {
                name: "success" // no reject, great success
                when: broadcastFeedback.status === FloweePay.TxBroadcastSuccess
                extend: "preparing"
                PropertyChanges { target: progressIcon
                    sweepAngle: 320
                    startAngle: -20
                }
                PropertyChanges { target: progressIcon; showCheck: true }
                PropertyChanges { target: statusLabel; text:  qsTr("Payment Sent") }
            },
            State {
                name: "rejected" // a peer didn't like our tx
                when: broadcastFeedback.status === FloweePay.TxRejected
                extend: "preparing"
                PropertyChanges { target: background; color: "#7f0000" }
                PropertyChanges { target: progressIcon; opacity: 0 }
                PropertyChanges { target: statusLabel; text: qsTr("Failed") }
                PropertyChanges { target: errorLabel; text: qsTr("Transaction rejected by network") }
            }
        ]

        Rectangle {
            id: background
            width: parent.width
            height: parent.height
            opacity: 0
            visible: opacity > 0
            color: "#7bb688"
            y: height + 2
            MouseArea {
                anchors.fill: parent // eat all mouse events.
            }
            Flowee.Label {
                id: statusLabel
                anchors.horizontalCenter: parent.horizontalCenter
                font.bold: true
                y: 30
                color: "#e8e8e8"
            }

            Flowee.ProgressCheckIcon {
                id: progressIcon
                anchors.horizontalCenter: parent.horizontalCenter
                anchors.top: statusLabel.bottom
                anchors.topMargin: 20
            }

            Column {
                width: parent.width
                anchors.top: progressIcon.bottom
                anchors.topMargin: 6
                spacing: 6
                Rectangle {
                    id: errorTextPane
                    visible: errorLabel.text !== ""
                    color: mainWindow.errorRedBg
                    radius: 10
                    width: parent.width
                    height: errorLabel.height + 20

                    Flowee.Label {
                        id: errorLabel
                        wrapMode: Text.Wrap
                        x: 10
                        y: 10
                        width: parent.width - 20
                        horizontalAlignment: Qt.AlignHCenter
                    }
                }
                Flowee.Label {
                    id: fiatLabel
                    anchors.horizontalCenter: parent.horizontalCenter
                    color: statusLabel.color
                    font.pixelSize: statusLabel.font.pixelSize * 2.5
                    text: Fiat.formattedPrice(broadcastFeedback.fiatAmount)
                    visible: Fiat.price !== 0
                }

                Flowee.BitcoinAmountLabel {
                    id: cryptoAmount
                    anchors.horizontalCenter: parent.horizontalCenter
                    value: broadcastFeedback.bitcoinAmount
                    colorize: false
                    showFiat: false
                    color: statusLabel.color
                }
                Item { width: 10; height: 10 } // spacer

                Flowee.Label {
                    id: addressLabel
                    color: statusLabel.color
                    visible: broadcastFeedback.targetAddress !== ""
                    width: parent.width - 20
                    x: 10
                    horizontalAlignment: Qt.AlignHCenter
                    wrapMode: Text.Wrap
                    text: qsTr("The payment has been sent to:", "Followed by the address")
                }
                Flowee.Label {
                    color: statusLabel.color
                    visible: broadcastFeedback.targetAddress !== ""
                    width: parent.width - 20
                    x: 10
                    horizontalAlignment: Qt.AlignHCenter
                    text: broadcastFeedback.targetAddress
                    fontSizeMode: Text.HorizontalFit
                }
            }

            Rectangle {
                id: closeButtonBg
                color: statusLabel.color
                radius: 10
                width: parent.width - 20
                x: 10
                height: closeButtonLabel.height + 25
                anchors.bottom: parent.bottom
                anchors.bottomMargin: 10
                Flowee.Label {
                    id: closeButtonLabel
                    text: qsTr("Close")
                    anchors.centerIn: parent
                    color: background.color
                }

                MouseArea {
                    anchors.fill: parent
                    anchors.margins: -10
                    focus: true
                    onClicked: {
                        var mainView = thePile.get(0);
                        mainView.currentIndex = 0; // go to the 'main' tab.
                        thePile.pop();
                    }
                }
            }

            Behavior on opacity { NumberAnimation { } }
            Behavior on y { NumberAnimation { } }
            Behavior on color { ColorAnimation { } }
        }
    }
}