/*
    SPDX-FileCopyrightText: 2013 Heena Mahour <heena393@gmail.com>
    SPDX-FileCopyrightText: 2013 Sebastian Kügler <sebas@kde.org>
    SPDX-FileCopyrightText: 2015 Kai Uwe Broulik <kde@privat.broulik.de>
    SPDX-FileCopyrightText: 2021 Jan Blackquill <uhhadd@gmail.com>
    SPDX-FileCopyrightText: 2021 Carl Schwan <carlschwan@kde.org>

    SPDX-License-Identifier: GPL-2.0-or-later
*/
import QtQuick 2.0
import org.kde.plasma.calendar 2.0
import org.kde.plasma.core 2.0 as PlasmaCore
import org.kde.plasma.components 2.0 as PlasmaComponents2 // For Highlight
import org.kde.plasma.components 3.0 as PlasmaComponents3
import org.kde.plasma.extras 2.0 as PlasmaExtras
import QtQml.Models 2.15
import org.kde.kirigami 2.12 as Kirigami

import org.kde.plasma.calendar 2.0

PlasmaComponents3.AbstractButton {
    id: dayStyle

    hoverEnabled: true
    property var dayModel: null

    signal activated

    readonly property date thisDate: new Date(yearNumber, typeof monthNumber !== "undefined" ? monthNumber - 1 : 0, typeof dayNumber !== "undefined" ? dayNumber : 1)
    readonly property bool today: {
        const today = root.today;
        let result = true;
        if (dateMatchingPrecision >= Calendar.MatchYear) {
            result = result && today.getFullYear() === thisDate.getFullYear()
        }
        if (dateMatchingPrecision >= Calendar.MatchYearAndMonth) {
            result = result && today.getMonth() === thisDate.getMonth()
        }
        if (dateMatchingPrecision >= Calendar.MatchYearMonthAndDay) {
            result = result && today.getDate() === thisDate.getDate()
        }
        return result
    }
    readonly property bool selected: {
        const current = root.currentDate;
        let result = true;
        if (dateMatchingPrecision >= Calendar.MatchYear) {
            result = result && current.getFullYear() === thisDate.getFullYear()
        }
        if (dateMatchingPrecision >= Calendar.MatchYearAndMonth) {
            result = result && current.getMonth() === thisDate.getMonth()
        }
        if (dateMatchingPrecision >= Calendar.MatchYearMonthAndDay) {
            result = result && current.getDate() === thisDate.getDate()
        }
        return result
    }

    PlasmaComponents2.Highlight {
        id: todayRect
        anchors.fill: parent
        opacity: {
            if (today) {
                return 1;
            } else if (selected) {
                return 0.6;
            } else if (dayStyle.hovered) {
                return 0.3;
            }
            return 0;
        }
    }

    Loader {
        active: model.eventCount !== undefined && model.eventCount > 0
        anchors.bottom: parent.bottom
        anchors.bottomMargin: PlasmaCore.Units.smallSpacing
        anchors.horizontalCenter: parent.horizontalCenter
        sourceComponent: Row {
            spacing: PlasmaCore.Units.smallSpacing
            Repeater {
                model: DelegateModel {
                    model: dayStyle.dayModel
                    rootIndex: modelIndex(index)
                    delegate: Rectangle {
                        width: PlasmaCore.Units.smallSpacing * 1.5
                        height: width
                        radius: width / 2
                        color: model.eventColor ? Kirigami.ColorUtils.linearInterpolation(model.eventColor, PlasmaCore.Theme.textColor, 0.2) : PlasmaCore.Theme.highlightColor
                    }
                }
            }
        }
    }

    contentItem: PlasmaExtras.Heading {
        id: label
        horizontalAlignment: Text.AlignHCenter
        verticalAlignment: Text.AlignVCenter
        text: model.label || dayNumber
        opacity: isCurrent ? 1.0 : 0.5
        wrapMode: Text.NoWrap
        elide: Text.ElideRight
        fontSizeMode: Text.HorizontalFit
    }
}