import QtQuick

Item {
    property real level: 0.5
    property int writes: 0
    property bool available: true
    property var snapshotOverride: null

    function stateJson() {
        if (snapshotOverride)
            return JSON.stringify(snapshotOverride);
        return JSON.stringify({
            global: {
                mode: available ? "uniform" : "none",
                level: level
            },
            setup: {
                needed: false,
                available: false
            },
            displays: [
                {
                    id: "fixture-display",
                    name: "fixture display",
                    level: level,
                    controllable: available,
                    issue: available ? "" : "unavailable"
                }
            ]
        });
    }
    function setAll(value) {
        if (available) {
            level = value;
            writes++;
        }
        return stateJson();
    }
    function setDisplay(id, value) {
        return setAll(value);
    }
    function setupDdc() {
        return stateJson();
    }
}