import QtQuick 2.7
import QtQuick.Layouts 1.3
import Ubuntu.Components 1.3
import Ubuntu.Components.ListItems 1.3 as ListItems
import io.thp.pyotherside 1.3

import "Components"

Page {
    id: settingsPage

    property bool is_running: false
    property bool upstart: false
    property string status_msg
    property int loglevel_idx

    property var loglevels: [
        i18n.tr("warning"),
        i18n.tr("info"),
        i18n.tr("debug"),
        i18n.tr("error")
    ]

    header: PageHeader {
        id: header
        title: i18n.tr('Pantalaimon UT')

        trailingActionBar.actions: [
            Action {
                iconName: 'info'
                text: i18n.tr('About')
                onTriggered: {
                    pageStack.push(Qt.resolvedUrl("AboutPage.qml"));
                }
            }
        ]
    }

    ListItem {
        id: upstartState
        anchors.top: header.bottom
        width: parent.width

        ListItems.Standard {
            anchors.fill: parent
            text: upstart ? i18n.tr("Service start enabled") : i18n.tr("Service start disabled")
            control: Switch {
                checked: upstart
                onClicked: {
                    if (checked) {
                        py.call('service.add', [], function(result) {});
                    } else {
                        py.call('service.remove', [], function(result) {});
                    }
                    get_status();
                }
            }
        }
    }

    ListItem {
        id: serviceState
        anchors.top: upstartState.bottom
        width: parent.width

        ListItems.Standard {
            anchors.fill: parent
            text: status_msg
            control: Switch {
                enabled: upstart
                checked: is_running
                onClicked: {
                    if (checked) {
                        py.call('service.start', [], function(result) {});
                    } else {
                        py.call('service.stop', [], function(result) {});
                    }
                    get_status();
                }
            }
        }
    }

    Column {
        id: defaultlogLevel
        anchors.top: serviceState.bottom
        width: parent.width
        leftPadding: units.gu(2)
        topPadding: units.gu(2)

        OptionSelector {
            id: loglevel
            text: i18n.tr("LogLevel")
            width: parent.width - units.gu(4)
            model: loglevels
            containerHeight: itemHeight * 6
            onDelegateClicked: {
                loglevel_idx = index;
                saveConfig();
            }
        }

        Label {
            text: " "
            height: units.gu(2)
        }

        ListItems.Divider {
            height: units.gu(.5)
        }
    }

    ListView {
        id: listView
        width: parent.width
        height: parent.height - bottomEdgeHint.height
        anchors.top: defaultlogLevel.bottom
        visible: (listView.count !== 0)
        model: ListModel {
            id: listModel
        }
        clip: true

        delegate: ListItem {
            ListItems.Standard {
                anchors.fill: parent
                text: name
                progression: true
                onClicked: {
                    var item = listModel.get(index);
                    pageStack.push(editConfigPage, {
                        idx: index,
                        instance: item.name,
                        homeserver: item.homeserver,
                        listenport: item.listenport,
                        proxy: item.proxy,
                        ssl: item.ssl
                    });
                }
            }

            leadingActions: ListItemActions {
                actions: [
                    Action {
                        iconName: "delete"
                        text: i18n.tr("Delete homeserver")
                        onTriggered: {
                            console.log("debug: delete " + index);
                            listModel.remove(index);
                            saveConfig();
                        }
                    }
                ]
            }
        }
    }

    Rectangle {
        visible: (listView.count === 0)
        // color: "lightgrey"
        anchors.fill: parent

        Label {
            text: i18n.tr("No homeservers")
            fontSize: "x-large"
            anchors.centerIn: parent
        }
    }

    Python {
        id: py

        Component.onCompleted: {
            addImportPath(Qt.resolvedUrl('../src/'));

            importModule('config', function() {
                py.call('config.load', [], function(result) {
                    console.log('DEBUG: ' + JSON.stringify(result));
                    var defaults = result[0];
                    loglevel.selectedIndex = defaults.loglevel_idx;
                    loglevel_idx = defaults.loglevel_idx;
                    var data = result[1];
                    for (var i=0; i<data.length; i++) {
                        listModel.append(data[i]);
                    }
                });
                console.log("debug: python config loaded...");
            });

            importModule('service', function() {
                console.log("debug: python service loaded...");
                get_status();
            });

        }
    }

    function saveConfig() {
        var lmdata = []
        for (var i = 0; i < listModel.count; ++i) {
            lmdata.push(listModel.get(i));
        }
        var defaults = {
            'loglevel': loglevels[loglevel_idx]
        }
        py.call("config.save", [JSON.stringify(defaults), JSON.stringify(lmdata)], function(result) {});
    }

    function get_status() {
        py.call("service.check_upstart", [], function(result) {
            upstart = result;
        });
        py.call("service.status", [], function(result) {
            is_running = result[0];
            status_msg = result[1];
        });
    }

    BottomEdge {
        id: bottomEdge
        height: parent.height

        hint {
            id: bottomEdgeHint
            text: i18n.tr("Add Homeserver")
            iconName: "add"
            status: BottomEdgeHint.Locked
            onStatusChanged: if (status === BottomEdgeHint.Inactive) bottomEdge.hint.status = BottomEdgeHint.Locked
        }

        contentComponent: EditServerPage {
            id: bottomEdgeComponent

            onSave: saveConfig()
        }
    }

    Component {
        id: editConfigPage

        EditServerPage {
            editmode: true
            onSave: saveConfig()
        }
    }
}