import QtQuick 2.15
import QtQuick.Layouts 1.15
import QtQuick.Controls 2.15

import org.kde.plasma.plasmoid 2.0
import org.kde.plasma.core 2.0 as PlasmaCore
import org.kde.plasma.components 2.0 as PlasmaComponents
import org.kde.plasma.components 3.0 as PlasmaComponents3
import org.kde.plasma.extras 2.0 as PlasmaExtras

import "activity.js" as Activity

// container for one single activity
PlasmaComponents.ListItem {
    id: activityItem
    separatorVisible: false
    enabled: true // enable mouse event handling
    property bool expanded: false

    ColumnLayout {
        width:
            (type == "announcement"
            ? announcementsListView : assignmentsListView).width
            - PlasmaCore.Units.gridUnit // HACK: clearance for scrollbar
        Layout.fillWidth: true
        RowLayout {
            // "finished" checkbox and activity title
            RowLayout {
                PlasmaComponents3.CheckBox {
                    id: activityCheckbox
                    checkState: finished ? Qt.Checked : Qt.Unchecked
                    onToggled: () => {
                        finished = (checkState == Qt.Checked)
                        activityLabel.font.strikeout = (checkState == Qt.Checked)

                        const configKeys = {
                            announcement: "finishedAnnouncements",
                            assignment: "finishedAssignments",
                        }

                        let finishedActivities = plasmoid.configuration[configKeys[type]]
                        if (finished) {
                            if (!finishedActivities.includes(activityId)) {
                                finishedActivities.push(activityId)
                            }
                        } else {
                            // remove activityId from list
                            finishedActivities.splice(
                                finishedActivities.indexOf(activityId), 1
                            )
                        }
                        // save config
                        plasmoid.configuration[configKeys[type]] = finishedActivities
                    }
                }

                ColumnLayout {
                    PlasmaComponents3.Label {
                        id: activityLabel
                        text: `[${course}] ${title}`
                        font.bold: important
                        font.strikeout: finished
                        color: important
                            ? PlasmaCore.Theme.negativeTextColor
                            : PlasmaCore.Theme.textColor
                        wrapMode: Text.WordWrap
                        Layout.fillWidth: true
                    }

                    PlasmaComponents3.Label {
                        id: dueLabel
                        visible: type == "assignment"
                        text: Activity.dueLabelText()
                        color: activityLabel.color
                        Layout.fillWidth: true
                    }

                    MouseArea {
                        width: parent.width
                        height: parent.height
                        onClicked: () => {
                            activityCheckbox.toggle()  // toggle checkbox
                            activityCheckbox.toggled() // and trigger the onToggled effects
                        }
                    }
                }
            }

            // buttons
            RowLayout {
                Layout.alignment: Qt.AlignRight

                PlasmaComponents3.ToolButton {
                    icon.name: "expand"
                    visible: type == "announcement"
                    // only show when mouse is hovering above this activity
                    opacity: activityItem.containsMouse ? 1 : 0
                    onClicked: () => {
                        expanded = !expanded
                    }
                }

                PlasmaComponents3.ToolButton {
                    icon.name: "view-visible"
                    opacity: activityItem.containsMouse ? 1 : 0
                    onClicked: () => {
                        Qt.openUrlExternally(url)
                    }
                }

                PlasmaComponents3.ToolButton {
                    icon.name: "emblem-important-symbolic"
                    checked: important
                    opacity: activityItem.containsMouse ? 1 : 0

                    onClicked: () => {
                        important = !important
                        activityLabel.font.bold = important
                        activityLabel.color = important
                            ? PlasmaCore.Theme.negativeTextColor
                            : PlasmaCore.Theme.textColor

                        const configKeys = {
                            announcement: "importantAnnouncements",
                            assignment: "importantAssignments",
                        }

                        let importantActivities = plasmoid.configuration[configKeys[type]]
                        if (important) {
                            if (!importantActivities.includes(activityId)) {
                                importantActivities.push(activityId)
                            }
                        } else {
                            // remove activityId from list
                            importantActivities.splice(
                                importantActivities.indexOf(activityId), 1
                            )
                        }
                        // save config
                        plasmoid.configuration[configKeys[type]] = importantActivities
                    }
                }
            }
        }

        // announcement message
        PlasmaExtras.Paragraph {
            Layout.fillWidth: true
            visible: expanded
            text: message
        }
    }
}