pragma Singleton
pragma ComponentBehavior: Bound

import QtCore
import QtQuick
import Quickshell
import Quickshell.Io
import qs.Common
import qs.Services

Singleton {
    id: root

    readonly property int sessionConfigVersion: 1

    readonly property bool isGreeterMode: Quickshell.env("DMS_RUN_GREETER") === "1" || Quickshell.env("DMS_RUN_GREETER") === "true"
    property bool hasTriedDefaultSession: false
    readonly property string _stateUrl: StandardPaths.writableLocation(StandardPaths.GenericStateLocation)
    readonly property string _stateDir: Paths.strip(_stateUrl)

    property bool isLightMode: false
    property bool doNotDisturb: false
    property bool isSwitchingMode: false
    property bool suppressOSD: true

    Timer {
        id: osdSuppressTimer
        interval: 2000
        running: true
        onTriggered: root.suppressOSD = false
    }

    Connections {
        target: SessionService
        function onSessionResumed() {
            root.suppressOSD = true;
            osdSuppressTimer.restart();
        }
    }

    property string wallpaperPath: ""
    property bool perMonitorWallpaper: false
    property var monitorWallpapers: ({})
    property bool perModeWallpaper: false
    property string wallpaperPathLight: ""
    property string wallpaperPathDark: ""
    property var monitorWallpapersLight: ({})
    property var monitorWallpapersDark: ({})
    property string wallpaperTransition: "fade"
    readonly property var availableWallpaperTransitions: ["none", "fade", "wipe", "disc", "stripes", "iris bloom", "pixelate", "portal"]
    property var includedTransitions: availableWallpaperTransitions.filter(t => t !== "none")

    property bool wallpaperCyclingEnabled: false
    property string wallpaperCyclingMode: "interval"
    property int wallpaperCyclingInterval: 300
    property string wallpaperCyclingTime: "06:00"
    property var monitorCyclingSettings: ({})

    property bool nightModeEnabled: false
    property int nightModeTemperature: 4500
    property int nightModeHighTemperature: 6500
    property bool nightModeAutoEnabled: false
    property string nightModeAutoMode: "time"
    property int nightModeStartHour: 18
    property int nightModeStartMinute: 0
    property int nightModeEndHour: 6
    property int nightModeEndMinute: 0
    property real latitude: 0.0
    property real longitude: 0.0
    property bool nightModeUseIPLocation: false
    property string nightModeLocationProvider: ""

    property var pinnedApps: []
    property var hiddenTrayIds: []
    property var recentColors: []
    property bool showThirdPartyPlugins: false
    property string launchPrefix: ""
    property string lastBrightnessDevice: ""
    property var brightnessExponentialDevices: ({})
    property var brightnessUserSetValues: ({})
    property var brightnessExponentValues: ({})

    property int selectedGpuIndex: 0
    property bool nvidiaGpuTempEnabled: false
    property bool nonNvidiaGpuTempEnabled: false
    property var enabledGpuPciIds: []

    property string wifiDeviceOverride: ""
    property bool weatherHourlyDetailed: true

    Component.onCompleted: {
        if (!isGreeterMode) {
            loadSettings();
        }
    }

    function loadSettings() {
        if (isGreeterMode) {
            parseSettings(greeterSessionFile.text());
        } else {
            parseSettings(settingsFile.text());
        }
    }

    function parseSettings(content) {
        try {
            if (content && content.trim()) {
                var settings = JSON.parse(content);
                isLightMode = settings.isLightMode !== undefined ? settings.isLightMode : false;

                if (settings.wallpaperPath && settings.wallpaperPath.startsWith("we:")) {
                    console.warn("WallpaperEngine wallpaper detected, resetting wallpaper");
                    wallpaperPath = "";
                    Quickshell.execDetached(["notify-send", "-u", "critical", "-a", "DMS", "-i", "dialog-warning", "WallpaperEngine Support Moved", "WallpaperEngine support has been moved to a plugin. Please enable the Linux Wallpaper Engine plugin in Settings → Plugins to continue using WallpaperEngine."]);
                } else {
                    wallpaperPath = settings.wallpaperPath !== undefined ? settings.wallpaperPath : "";
                }
                perMonitorWallpaper = settings.perMonitorWallpaper !== undefined ? settings.perMonitorWallpaper : false;
                monitorWallpapers = settings.monitorWallpapers !== undefined ? settings.monitorWallpapers : {};
                perModeWallpaper = settings.perModeWallpaper !== undefined ? settings.perModeWallpaper : false;
                wallpaperPathLight = settings.wallpaperPathLight !== undefined ? settings.wallpaperPathLight : "";
                wallpaperPathDark = settings.wallpaperPathDark !== undefined ? settings.wallpaperPathDark : "";
                monitorWallpapersLight = settings.monitorWallpapersLight !== undefined ? settings.monitorWallpapersLight : {};
                monitorWallpapersDark = settings.monitorWallpapersDark !== undefined ? settings.monitorWallpapersDark : {};
                brightnessExponentialDevices = settings.brightnessExponentialDevices !== undefined ? settings.brightnessExponentialDevices : (settings.brightnessLogarithmicDevices || {});
                brightnessUserSetValues = settings.brightnessUserSetValues !== undefined ? settings.brightnessUserSetValues : {};
                brightnessExponentValues = settings.brightnessExponentValues !== undefined ? settings.brightnessExponentValues : {};
                doNotDisturb = settings.doNotDisturb !== undefined ? settings.doNotDisturb : false;
                nightModeEnabled = settings.nightModeEnabled !== undefined ? settings.nightModeEnabled : false;
                nightModeTemperature = settings.nightModeTemperature !== undefined ? settings.nightModeTemperature : 4500;
                nightModeHighTemperature = settings.nightModeHighTemperature !== undefined ? settings.nightModeHighTemperature : 6500;
                nightModeAutoEnabled = settings.nightModeAutoEnabled !== undefined ? settings.nightModeAutoEnabled : false;
                nightModeAutoMode = settings.nightModeAutoMode !== undefined ? settings.nightModeAutoMode : "time";
                if (settings.nightModeStartTime !== undefined) {
                    const parts = settings.nightModeStartTime.split(":");
                    nightModeStartHour = parseInt(parts[0]) || 18;
                    nightModeStartMinute = parseInt(parts[1]) || 0;
                } else {
                    nightModeStartHour = settings.nightModeStartHour !== undefined ? settings.nightModeStartHour : 18;
                    nightModeStartMinute = settings.nightModeStartMinute !== undefined ? settings.nightModeStartMinute : 0;
                }
                if (settings.nightModeEndTime !== undefined) {
                    const parts = settings.nightModeEndTime.split(":");
                    nightModeEndHour = parseInt(parts[0]) || 6;
                    nightModeEndMinute = parseInt(parts[1]) || 0;
                } else {
                    nightModeEndHour = settings.nightModeEndHour !== undefined ? settings.nightModeEndHour : 6;
                    nightModeEndMinute = settings.nightModeEndMinute !== undefined ? settings.nightModeEndMinute : 0;
                }
                latitude = settings.latitude !== undefined ? settings.latitude : 0.0;
                longitude = settings.longitude !== undefined ? settings.longitude : 0.0;
                nightModeUseIPLocation = settings.nightModeUseIPLocation !== undefined ? settings.nightModeUseIPLocation : false;
                nightModeLocationProvider = settings.nightModeLocationProvider !== undefined ? settings.nightModeLocationProvider : "";
                pinnedApps = settings.pinnedApps !== undefined ? settings.pinnedApps : [];
                hiddenTrayIds = settings.hiddenTrayIds !== undefined ? settings.hiddenTrayIds : [];
                selectedGpuIndex = settings.selectedGpuIndex !== undefined ? settings.selectedGpuIndex : 0;
                nvidiaGpuTempEnabled = settings.nvidiaGpuTempEnabled !== undefined ? settings.nvidiaGpuTempEnabled : false;
                nonNvidiaGpuTempEnabled = settings.nonNvidiaGpuTempEnabled !== undefined ? settings.nonNvidiaGpuTempEnabled : false;
                enabledGpuPciIds = settings.enabledGpuPciIds !== undefined ? settings.enabledGpuPciIds : [];
                wifiDeviceOverride = settings.wifiDeviceOverride !== undefined ? settings.wifiDeviceOverride : "";
                weatherHourlyDetailed = settings.weatherHourlyDetailed !== undefined ? settings.weatherHourlyDetailed : true;
                wallpaperCyclingEnabled = settings.wallpaperCyclingEnabled !== undefined ? settings.wallpaperCyclingEnabled : false;
                wallpaperCyclingMode = settings.wallpaperCyclingMode !== undefined ? settings.wallpaperCyclingMode : "interval";
                wallpaperCyclingInterval = settings.wallpaperCyclingInterval !== undefined ? settings.wallpaperCyclingInterval : 300;
                wallpaperCyclingTime = settings.wallpaperCyclingTime !== undefined ? settings.wallpaperCyclingTime : "06:00";
                monitorCyclingSettings = settings.monitorCyclingSettings !== undefined ? settings.monitorCyclingSettings : {};
                lastBrightnessDevice = settings.lastBrightnessDevice !== undefined ? settings.lastBrightnessDevice : "";
                launchPrefix = settings.launchPrefix !== undefined ? settings.launchPrefix : "";
                wallpaperTransition = settings.wallpaperTransition !== undefined ? settings.wallpaperTransition : "fade";
                includedTransitions = settings.includedTransitions !== undefined ? settings.includedTransitions : availableWallpaperTransitions.filter(t => t !== "none");
                recentColors = settings.recentColors !== undefined ? settings.recentColors : [];
                showThirdPartyPlugins = settings.showThirdPartyPlugins !== undefined ? settings.showThirdPartyPlugins : false;

                if (settings.configVersion === undefined) {
                    migrateFromUndefinedToV1(settings);
                    saveSettings();
                } else if (settings.configVersion === sessionConfigVersion) {
                    cleanupUnusedKeys();
                }

                if (!isGreeterMode) {
                    if (typeof Theme !== "undefined") {
                        Theme.generateSystemThemesFromCurrentTheme();
                    }
                }

                if (typeof WallpaperCyclingService !== "undefined") {
                    WallpaperCyclingService.updateCyclingState();
                }
            }
        } catch (e) {}
    }

    function saveSettings() {
        if (isGreeterMode)
            return;
        settingsFile.setText(JSON.stringify({
            "isLightMode": isLightMode,
            "wallpaperPath": wallpaperPath,
            "perMonitorWallpaper": perMonitorWallpaper,
            "monitorWallpapers": monitorWallpapers,
            "perModeWallpaper": perModeWallpaper,
            "wallpaperPathLight": wallpaperPathLight,
            "wallpaperPathDark": wallpaperPathDark,
            "monitorWallpapersLight": monitorWallpapersLight,
            "monitorWallpapersDark": monitorWallpapersDark,
            "brightnessExponentialDevices": brightnessExponentialDevices,
            "brightnessUserSetValues": brightnessUserSetValues,
            "brightnessExponentValues": brightnessExponentValues,
            "doNotDisturb": doNotDisturb,
            "nightModeEnabled": nightModeEnabled,
            "nightModeTemperature": nightModeTemperature,
            "nightModeHighTemperature": nightModeHighTemperature,
            "nightModeAutoEnabled": nightModeAutoEnabled,
            "nightModeAutoMode": nightModeAutoMode,
            "nightModeStartHour": nightModeStartHour,
            "nightModeStartMinute": nightModeStartMinute,
            "nightModeEndHour": nightModeEndHour,
            "nightModeEndMinute": nightModeEndMinute,
            "latitude": latitude,
            "longitude": longitude,
            "nightModeUseIPLocation": nightModeUseIPLocation,
            "nightModeLocationProvider": nightModeLocationProvider,
            "pinnedApps": pinnedApps,
            "hiddenTrayIds": hiddenTrayIds,
            "selectedGpuIndex": selectedGpuIndex,
            "nvidiaGpuTempEnabled": nvidiaGpuTempEnabled,
            "nonNvidiaGpuTempEnabled": nonNvidiaGpuTempEnabled,
            "enabledGpuPciIds": enabledGpuPciIds,
            "wifiDeviceOverride": wifiDeviceOverride,
            "weatherHourlyDetailed": weatherHourlyDetailed,
            "wallpaperCyclingEnabled": wallpaperCyclingEnabled,
            "wallpaperCyclingMode": wallpaperCyclingMode,
            "wallpaperCyclingInterval": wallpaperCyclingInterval,
            "wallpaperCyclingTime": wallpaperCyclingTime,
            "monitorCyclingSettings": monitorCyclingSettings,
            "lastBrightnessDevice": lastBrightnessDevice,
            "launchPrefix": launchPrefix,
            "wallpaperTransition": wallpaperTransition,
            "includedTransitions": includedTransitions,
            "recentColors": recentColors,
            "showThirdPartyPlugins": showThirdPartyPlugins,
            "configVersion": sessionConfigVersion
        }, null, 2));
    }

    function migrateFromUndefinedToV1(settings) {
        console.info("SessionData: Migrating configuration from undefined to version 1");
        if (typeof SettingsData !== "undefined") {
            if (settings.acMonitorTimeout !== undefined) {
                SettingsData.set("acMonitorTimeout", settings.acMonitorTimeout);
            }
            if (settings.acLockTimeout !== undefined) {
                SettingsData.set("acLockTimeout", settings.acLockTimeout);
            }
            if (settings.acSuspendTimeout !== undefined) {
                SettingsData.set("acSuspendTimeout", settings.acSuspendTimeout);
            }
            if (settings.acHibernateTimeout !== undefined) {
                SettingsData.set("acHibernateTimeout", settings.acHibernateTimeout);
            }
            if (settings.batteryMonitorTimeout !== undefined) {
                SettingsData.set("batteryMonitorTimeout", settings.batteryMonitorTimeout);
            }
            if (settings.batteryLockTimeout !== undefined) {
                SettingsData.set("batteryLockTimeout", settings.batteryLockTimeout);
            }
            if (settings.batterySuspendTimeout !== undefined) {
                SettingsData.set("batterySuspendTimeout", settings.batterySuspendTimeout);
            }
            if (settings.batteryHibernateTimeout !== undefined) {
                SettingsData.set("batteryHibernateTimeout", settings.batteryHibernateTimeout);
            }
            if (settings.lockBeforeSuspend !== undefined) {
                SettingsData.set("lockBeforeSuspend", settings.lockBeforeSuspend);
            }
            if (settings.loginctlLockIntegration !== undefined) {
                SettingsData.set("loginctlLockIntegration", settings.loginctlLockIntegration);
            }
            if (settings.launchPrefix !== undefined) {
                SettingsData.set("launchPrefix", settings.launchPrefix);
            }
        }
        if (typeof CacheData !== "undefined") {
            if (settings.wallpaperLastPath !== undefined) {
                CacheData.wallpaperLastPath = settings.wallpaperLastPath;
            }
            if (settings.profileLastPath !== undefined) {
                CacheData.profileLastPath = settings.profileLastPath;
            }
            CacheData.saveCache();
        }
    }

    function cleanupUnusedKeys() {
        const validKeys = ["isLightMode", "wallpaperPath", "perMonitorWallpaper", "monitorWallpapers", "perModeWallpaper", "wallpaperPathLight", "wallpaperPathDark", "monitorWallpapersLight", "monitorWallpapersDark", "doNotDisturb", "nightModeEnabled", "nightModeTemperature", "nightModeHighTemperature", "nightModeAutoEnabled", "nightModeAutoMode", "nightModeStartHour", "nightModeStartMinute", "nightModeEndHour", "nightModeEndMinute", "latitude", "longitude", "nightModeUseIPLocation", "nightModeLocationProvider", "pinnedApps", "hiddenTrayIds", "selectedGpuIndex", "nvidiaGpuTempEnabled", "nonNvidiaGpuTempEnabled", "enabledGpuPciIds", "wifiDeviceOverride", "weatherHourlyDetailed", "wallpaperCyclingEnabled", "wallpaperCyclingMode", "wallpaperCyclingInterval", "wallpaperCyclingTime", "monitorCyclingSettings", "lastBrightnessDevice", "brightnessExponentialDevices", "brightnessUserSetValues", "brightnessExponentValues", "launchPrefix", "wallpaperTransition", "includedTransitions", "recentColors", "showThirdPartyPlugins", "configVersion"];

        try {
            const content = settingsFile.text();
            if (!content || !content.trim())
                return;
            const settings = JSON.parse(content);
            let needsSave = false;

            for (const key in settings) {
                if (!validKeys.includes(key)) {
                    console.log("SessionData: Removing unused key:", key);
                    delete settings[key];
                    needsSave = true;
                }
            }

            if (needsSave) {
                settingsFile.setText(JSON.stringify(settings, null, 2));
            }
        } catch (e) {
            console.warn("SessionData: Failed to cleanup unused keys:", e.message);
        }
    }

    function setLightMode(lightMode) {
        isSwitchingMode = true;
        isLightMode = lightMode;
        syncWallpaperForCurrentMode();
        saveSettings();
        Qt.callLater(() => {
            isSwitchingMode = false;
        });
    }

    function setDoNotDisturb(enabled) {
        doNotDisturb = enabled;
        saveSettings();
    }

    function setWallpaperPath(path) {
        wallpaperPath = path;
        saveSettings();
    }

    function setWallpaper(imagePath) {
        wallpaperPath = imagePath;
        if (perModeWallpaper) {
            if (isLightMode) {
                wallpaperPathLight = imagePath;
            } else {
                wallpaperPathDark = imagePath;
            }
        }
        saveSettings();

        if (typeof Theme !== "undefined") {
            Theme.generateSystemThemesFromCurrentTheme();
        }
    }

    function setWallpaperColor(color) {
        wallpaperPath = color;
        if (perModeWallpaper) {
            if (isLightMode) {
                wallpaperPathLight = color;
            } else {
                wallpaperPathDark = color;
            }
        }
        saveSettings();

        if (typeof Theme !== "undefined") {
            Theme.generateSystemThemesFromCurrentTheme();
        }
    }

    function clearWallpaper() {
        wallpaperPath = "";
        saveSettings();

        if (typeof Theme !== "undefined") {
            if (typeof SettingsData !== "undefined" && SettingsData.theme) {
                Theme.switchTheme(SettingsData.theme);
            } else {
                Theme.switchTheme("blue");
            }
        }
    }

    function setPerMonitorWallpaper(enabled) {
        perMonitorWallpaper = enabled;
        if (enabled && perModeWallpaper) {
            syncWallpaperForCurrentMode();
        }
        saveSettings();

        if (typeof Theme !== "undefined") {
            Theme.generateSystemThemesFromCurrentTheme();
        }
    }

    function setPerModeWallpaper(enabled) {
        if (enabled && wallpaperCyclingEnabled) {
            setWallpaperCyclingEnabled(false);
        }
        if (enabled && perMonitorWallpaper) {
            var monitorCyclingAny = false;
            for (var key in monitorCyclingSettings) {
                if (monitorCyclingSettings[key].enabled) {
                    monitorCyclingAny = true;
                    break;
                }
            }
            if (monitorCyclingAny) {
                var newSettings = Object.assign({}, monitorCyclingSettings);
                for (var screenName in newSettings) {
                    newSettings[screenName].enabled = false;
                }
                monitorCyclingSettings = newSettings;
            }
        }

        perModeWallpaper = enabled;
        if (enabled) {
            if (perMonitorWallpaper) {
                monitorWallpapersLight = Object.assign({}, monitorWallpapers);
                monitorWallpapersDark = Object.assign({}, monitorWallpapers);
            } else {
                wallpaperPathLight = wallpaperPath;
                wallpaperPathDark = wallpaperPath;
            }
        } else {
            syncWallpaperForCurrentMode();
        }
        saveSettings();

        if (typeof Theme !== "undefined") {
            Theme.generateSystemThemesFromCurrentTheme();
        }
    }

    function setMonitorWallpaper(screenName, path) {
        var screen = null;
        var screens = Quickshell.screens;
        for (var i = 0; i < screens.length; i++) {
            if (screens[i].name === screenName) {
                screen = screens[i];
                break;
            }
        }

        if (!screen) {
            console.warn("SessionData: Screen not found:", screenName);
            return;
        }

        var identifier = typeof SettingsData !== "undefined" ? SettingsData.getScreenDisplayName(screen) : screen.name;

        var newMonitorWallpapers = {};
        for (var key in monitorWallpapers) {
            var isThisScreen = key === screen.name || (screen.model && key === screen.model);
            if (!isThisScreen) {
                newMonitorWallpapers[key] = monitorWallpapers[key];
            }
        }

        if (path && path !== "") {
            newMonitorWallpapers[identifier] = path;
        }

        monitorWallpapers = newMonitorWallpapers;

        if (perModeWallpaper) {
            if (isLightMode) {
                var newLight = {};
                for (var key in monitorWallpapersLight) {
                    var isThisScreen = key === screen.name || (screen.model && key === screen.model);
                    if (!isThisScreen) {
                        newLight[key] = monitorWallpapersLight[key];
                    }
                }
                if (path && path !== "") {
                    newLight[identifier] = path;
                }
                monitorWallpapersLight = newLight;
            } else {
                var newDark = {};
                for (var key in monitorWallpapersDark) {
                    var isThisScreen = key === screen.name || (screen.model && key === screen.model);
                    if (!isThisScreen) {
                        newDark[key] = monitorWallpapersDark[key];
                    }
                }
                if (path && path !== "") {
                    newDark[identifier] = path;
                }
                monitorWallpapersDark = newDark;
            }
        }

        saveSettings();

        if (typeof Theme !== "undefined" && typeof Quickshell !== "undefined" && typeof SettingsData !== "undefined") {
            var screens = Quickshell.screens;
            if (screens.length > 0) {
                var targetMonitor = (SettingsData.matugenTargetMonitor && SettingsData.matugenTargetMonitor !== "") ? SettingsData.matugenTargetMonitor : screens[0].name;
                if (screenName === targetMonitor) {
                    Theme.generateSystemThemesFromCurrentTheme();
                }
            }
        }
    }

    function setWallpaperTransition(transition) {
        wallpaperTransition = transition;
        saveSettings();
    }

    function setWallpaperCyclingEnabled(enabled) {
        wallpaperCyclingEnabled = enabled;
        saveSettings();
    }

    function setWallpaperCyclingMode(mode) {
        wallpaperCyclingMode = mode;
        saveSettings();
    }

    function setWallpaperCyclingInterval(interval) {
        wallpaperCyclingInterval = interval;
        saveSettings();
    }

    function setWallpaperCyclingTime(time) {
        wallpaperCyclingTime = time;
        saveSettings();
    }

    function setMonitorCyclingEnabled(screenName, enabled) {
        var screen = null;
        var screens = Quickshell.screens;
        for (var i = 0; i < screens.length; i++) {
            if (screens[i].name === screenName) {
                screen = screens[i];
                break;
            }
        }

        if (!screen) {
            console.warn("SessionData: Screen not found:", screenName);
            return;
        }

        var identifier = typeof SettingsData !== "undefined" ? SettingsData.getScreenDisplayName(screen) : screen.name;

        var newSettings = {};
        for (var key in monitorCyclingSettings) {
            var isThisScreen = key === screen.name || (screen.model && key === screen.model);
            if (!isThisScreen) {
                newSettings[key] = monitorCyclingSettings[key];
            }
        }

        if (!newSettings[identifier]) {
            newSettings[identifier] = {
                "enabled": false,
                "mode": "interval",
                "interval": 300,
                "time": "06:00"
            };
        }
        newSettings[identifier].enabled = enabled;
        monitorCyclingSettings = newSettings;
        saveSettings();
    }

    function setMonitorCyclingMode(screenName, mode) {
        var screen = null;
        var screens = Quickshell.screens;
        for (var i = 0; i < screens.length; i++) {
            if (screens[i].name === screenName) {
                screen = screens[i];
                break;
            }
        }

        if (!screen) {
            console.warn("SessionData: Screen not found:", screenName);
            return;
        }

        var identifier = typeof SettingsData !== "undefined" ? SettingsData.getScreenDisplayName(screen) : screen.name;

        var newSettings = {};
        for (var key in monitorCyclingSettings) {
            var isThisScreen = key === screen.name || (screen.model && key === screen.model);
            if (!isThisScreen) {
                newSettings[key] = monitorCyclingSettings[key];
            }
        }

        if (!newSettings[identifier]) {
            newSettings[identifier] = {
                "enabled": false,
                "mode": "interval",
                "interval": 300,
                "time": "06:00"
            };
        }
        newSettings[identifier].mode = mode;
        monitorCyclingSettings = newSettings;
        saveSettings();
    }

    function setMonitorCyclingInterval(screenName, interval) {
        var screen = null;
        var screens = Quickshell.screens;
        for (var i = 0; i < screens.length; i++) {
            if (screens[i].name === screenName) {
                screen = screens[i];
                break;
            }
        }

        if (!screen) {
            console.warn("SessionData: Screen not found:", screenName);
            return;
        }

        var identifier = typeof SettingsData !== "undefined" ? SettingsData.getScreenDisplayName(screen) : screen.name;

        var newSettings = {};
        for (var key in monitorCyclingSettings) {
            var isThisScreen = key === screen.name || (screen.model && key === screen.model);
            if (!isThisScreen) {
                newSettings[key] = monitorCyclingSettings[key];
            }
        }

        if (!newSettings[identifier]) {
            newSettings[identifier] = {
                "enabled": false,
                "mode": "interval",
                "interval": 300,
                "time": "06:00"
            };
        }
        newSettings[identifier].interval = interval;
        monitorCyclingSettings = newSettings;
        saveSettings();
    }

    function setMonitorCyclingTime(screenName, time) {
        var screen = null;
        var screens = Quickshell.screens;
        for (var i = 0; i < screens.length; i++) {
            if (screens[i].name === screenName) {
                screen = screens[i];
                break;
            }
        }

        if (!screen) {
            console.warn("SessionData: Screen not found:", screenName);
            return;
        }

        var identifier = typeof SettingsData !== "undefined" ? SettingsData.getScreenDisplayName(screen) : screen.name;

        var newSettings = {};
        for (var key in monitorCyclingSettings) {
            var isThisScreen = key === screen.name || (screen.model && key === screen.model);
            if (!isThisScreen) {
                newSettings[key] = monitorCyclingSettings[key];
            }
        }

        if (!newSettings[identifier]) {
            newSettings[identifier] = {
                "enabled": false,
                "mode": "interval",
                "interval": 300,
                "time": "06:00"
            };
        }
        newSettings[identifier].time = time;
        monitorCyclingSettings = newSettings;
        saveSettings();
    }

    function setNightModeEnabled(enabled) {
        nightModeEnabled = enabled;
        saveSettings();
    }

    function setNightModeTemperature(temperature) {
        nightModeTemperature = temperature;
        saveSettings();
    }

    function setNightModeHighTemperature(temperature) {
        nightModeHighTemperature = temperature;
        saveSettings();
    }

    function setNightModeAutoEnabled(enabled) {
        console.log("SessionData: Setting nightModeAutoEnabled to", enabled);
        nightModeAutoEnabled = enabled;
        saveSettings();
    }

    function setNightModeAutoMode(mode) {
        nightModeAutoMode = mode;
        saveSettings();
    }

    function setNightModeStartHour(hour) {
        nightModeStartHour = hour;
        saveSettings();
    }

    function setNightModeStartMinute(minute) {
        nightModeStartMinute = minute;
        saveSettings();
    }

    function setNightModeEndHour(hour) {
        nightModeEndHour = hour;
        saveSettings();
    }

    function setNightModeEndMinute(minute) {
        nightModeEndMinute = minute;
        saveSettings();
    }

    function setNightModeUseIPLocation(use) {
        nightModeUseIPLocation = use;
        saveSettings();
    }

    function setLatitude(lat) {
        console.log("SessionData: Setting latitude to", lat);
        latitude = lat;
        saveSettings();
    }

    function setLongitude(lng) {
        console.log("SessionData: Setting longitude to", lng);
        longitude = lng;
        saveSettings();
    }

    function setNightModeLocationProvider(provider) {
        nightModeLocationProvider = provider;
        saveSettings();
    }

    function setPinnedApps(apps) {
        pinnedApps = apps;
        saveSettings();
    }

    function addPinnedApp(appId) {
        if (!appId)
            return;
        var currentPinned = [...pinnedApps];
        if (currentPinned.indexOf(appId) === -1) {
            currentPinned.push(appId);
            setPinnedApps(currentPinned);
        }
    }

    function removePinnedApp(appId) {
        if (!appId)
            return;
        var currentPinned = pinnedApps.filter(id => id !== appId);
        setPinnedApps(currentPinned);
    }

    function isPinnedApp(appId) {
        return appId && pinnedApps.indexOf(appId) !== -1;
    }

    function hideTrayId(trayId) {
        if (!trayId)
            return;
        const current = [...hiddenTrayIds];
        if (current.indexOf(trayId) === -1) {
            current.push(trayId);
            hiddenTrayIds = current;
            saveSettings();
        }
    }

    function showTrayId(trayId) {
        if (!trayId)
            return;
        hiddenTrayIds = hiddenTrayIds.filter(id => id !== trayId);
        saveSettings();
    }

    function isHiddenTrayId(trayId) {
        return trayId && hiddenTrayIds.indexOf(trayId) !== -1;
    }

    function addRecentColor(color) {
        const colorStr = color.toString();
        let recent = recentColors.slice();
        recent = recent.filter(c => c !== colorStr);
        recent.unshift(colorStr);
        if (recent.length > 5)
            recent = recent.slice(0, 5);
        recentColors = recent;
        saveSettings();
    }

    function setShowThirdPartyPlugins(enabled) {
        showThirdPartyPlugins = enabled;
        saveSettings();
    }

    function setLaunchPrefix(prefix) {
        launchPrefix = prefix;
        saveSettings();
    }

    function setLastBrightnessDevice(device) {
        lastBrightnessDevice = device;
        saveSettings();
    }

    function setBrightnessExponential(deviceName, enabled) {
        var newSettings = Object.assign({}, brightnessExponentialDevices);
        if (enabled) {
            newSettings[deviceName] = true;
        } else {
            delete newSettings[deviceName];
        }
        brightnessExponentialDevices = newSettings;
        saveSettings();

        if (typeof DisplayService !== "undefined") {
            DisplayService.updateDeviceBrightnessDisplay(deviceName);
        }
    }

    function getBrightnessExponential(deviceName) {
        return brightnessExponentialDevices[deviceName] === true;
    }

    function setBrightnessUserSetValue(deviceName, value) {
        var newValues = Object.assign({}, brightnessUserSetValues);
        newValues[deviceName] = value;
        brightnessUserSetValues = newValues;
        saveSettings();
    }

    function getBrightnessUserSetValue(deviceName) {
        return brightnessUserSetValues[deviceName];
    }

    function clearBrightnessUserSetValue(deviceName) {
        var newValues = Object.assign({}, brightnessUserSetValues);
        delete newValues[deviceName];
        brightnessUserSetValues = newValues;
        saveSettings();
    }

    function setBrightnessExponent(deviceName, exponent) {
        var newValues = Object.assign({}, brightnessExponentValues);
        if (exponent !== undefined && exponent !== null) {
            newValues[deviceName] = exponent;
        } else {
            delete newValues[deviceName];
        }
        brightnessExponentValues = newValues;
        saveSettings();
    }

    function getBrightnessExponent(deviceName) {
        const value = brightnessExponentValues[deviceName];
        return value !== undefined ? value : 1.2;
    }

    function setSelectedGpuIndex(index) {
        selectedGpuIndex = index;
        saveSettings();
    }

    function setNvidiaGpuTempEnabled(enabled) {
        nvidiaGpuTempEnabled = enabled;
        saveSettings();
    }

    function setNonNvidiaGpuTempEnabled(enabled) {
        nonNvidiaGpuTempEnabled = enabled;
        saveSettings();
    }

    function setEnabledGpuPciIds(pciIds) {
        enabledGpuPciIds = pciIds;
        saveSettings();
    }

    function setWifiDeviceOverride(device) {
        wifiDeviceOverride = device || "";
        saveSettings();
    }

    function setWeatherHourlyDetailed(detailed) {
        weatherHourlyDetailed = detailed;
        saveSettings();
    }

    function syncWallpaperForCurrentMode() {
        if (!perModeWallpaper)
            return;
        if (perMonitorWallpaper) {
            monitorWallpapers = isLightMode ? Object.assign({}, monitorWallpapersLight) : Object.assign({}, monitorWallpapersDark);
            return;
        }

        wallpaperPath = isLightMode ? wallpaperPathLight : wallpaperPathDark;
    }

    function getMonitorWallpaper(screenName) {
        if (!perMonitorWallpaper) {
            return wallpaperPath;
        }

        var screen = null;
        var screens = Quickshell.screens;
        for (var i = 0; i < screens.length; i++) {
            if (screens[i].name === screenName) {
                screen = screens[i];
                break;
            }
        }

        if (!screen) {
            return monitorWallpapers[screenName] || wallpaperPath;
        }

        if (monitorWallpapers[screen.name]) {
            return monitorWallpapers[screen.name];
        }
        if (screen.model && monitorWallpapers[screen.model]) {
            return monitorWallpapers[screen.model];
        }

        return wallpaperPath;
    }

    function getMonitorCyclingSettings(screenName) {
        var screen = null;
        var screens = Quickshell.screens;
        for (var i = 0; i < screens.length; i++) {
            if (screens[i].name === screenName) {
                screen = screens[i];
                break;
            }
        }

        if (!screen) {
            return monitorCyclingSettings[screenName] || {
                "enabled": false,
                "mode": "interval",
                "interval": 300,
                "time": "06:00"
            };
        }

        if (monitorCyclingSettings[screen.name]) {
            return monitorCyclingSettings[screen.name];
        }
        if (screen.model && monitorCyclingSettings[screen.model]) {
            return monitorCyclingSettings[screen.model];
        }

        return {
            "enabled": false,
            "mode": "interval",
            "interval": 300,
            "time": "06:00"
        };
    }

    FileView {
        id: settingsFile

        path: isGreeterMode ? "" : StandardPaths.writableLocation(StandardPaths.GenericStateLocation) + "/DankMaterialShell/session.json"
        blockLoading: isGreeterMode
        blockWrites: true
        watchChanges: !isGreeterMode
        onLoaded: {
            if (!isGreeterMode) {
                parseSettings(settingsFile.text());
                hasTriedDefaultSession = false;
            }
        }
        onLoadFailed: error => {
            if (!isGreeterMode && !hasTriedDefaultSession) {
                hasTriedDefaultSession = true;
                defaultSessionCheckProcess.running = true;
            }
        }
    }

    FileView {
        id: greeterSessionFile

        path: {
            const greetCfgDir = Quickshell.env("DMS_GREET_CFG_DIR") || "/etc/greetd/.dms";
            return greetCfgDir + "/session.json";
        }
        preload: isGreeterMode
        blockLoading: false
        blockWrites: true
        watchChanges: false
        printErrors: true
        onLoaded: {
            if (isGreeterMode) {
                parseSettings(greeterSessionFile.text());
            }
        }
    }

    Process {
        id: defaultSessionCheckProcess

        command: ["sh", "-c", "CONFIG_DIR=\"" + _stateDir + "/DankMaterialShell\"; if [ -f \"$CONFIG_DIR/default-session.json\" ] && [ ! -f \"$CONFIG_DIR/session.json\" ]; then cp --no-preserve=mode \"$CONFIG_DIR/default-session.json\" \"$CONFIG_DIR/session.json\" && echo 'copied'; else echo 'not_found'; fi"]
        running: false
        onExited: exitCode => {
            if (exitCode === 0) {
                console.info("Copied default-session.json to session.json");
                settingsFile.reload();
            }
        }
    }

    IpcHandler {
        target: "wallpaper"

        function get(): string {
            if (root.perMonitorWallpaper) {
                return "ERROR: Per-monitor mode enabled. Use getFor(screenName) instead.";
            }
            return root.wallpaperPath || "";
        }

        function set(path: string): string {
            if (root.perMonitorWallpaper) {
                return "ERROR: Per-monitor mode enabled. Use setFor(screenName, path) instead.";
            }

            if (!path) {
                return "ERROR: No path provided";
            }

            var absolutePath = path.startsWith("/") ? path : StandardPaths.writableLocation(StandardPaths.HomeLocation) + "/" + path;

            try {
                root.setWallpaper(absolutePath);
                return "SUCCESS: Wallpaper set to " + absolutePath;
            } catch (e) {
                return "ERROR: Failed to set wallpaper: " + e.toString();
            }
        }

        function clear(): string {
            root.setWallpaper("");
            root.setPerMonitorWallpaper(false);
            root.monitorWallpapers = {};
            root.saveSettings();
            return "SUCCESS: All wallpapers cleared";
        }

        function next(): string {
            if (root.perMonitorWallpaper) {
                return "ERROR: Per-monitor mode enabled. Use nextFor(screenName) instead.";
            }

            if (!root.wallpaperPath) {
                return "ERROR: No wallpaper set";
            }

            try {
                WallpaperCyclingService.cycleNextManually();
                return "SUCCESS: Cycling to next wallpaper";
            } catch (e) {
                return "ERROR: Failed to cycle wallpaper: " + e.toString();
            }
        }

        function prev(): string {
            if (root.perMonitorWallpaper) {
                return "ERROR: Per-monitor mode enabled. Use prevFor(screenName) instead.";
            }

            if (!root.wallpaperPath) {
                return "ERROR: No wallpaper set";
            }

            try {
                WallpaperCyclingService.cyclePrevManually();
                return "SUCCESS: Cycling to previous wallpaper";
            } catch (e) {
                return "ERROR: Failed to cycle wallpaper: " + e.toString();
            }
        }

        function getFor(screenName: string): string {
            if (!screenName) {
                return "ERROR: No screen name provided";
            }
            return root.getMonitorWallpaper(screenName) || "";
        }

        function setFor(screenName: string, path: string): string {
            if (!screenName) {
                return "ERROR: No screen name provided";
            }

            if (!path) {
                return "ERROR: No path provided";
            }

            var absolutePath = path.startsWith("/") ? path : StandardPaths.writableLocation(StandardPaths.HomeLocation) + "/" + path;

            try {
                if (!root.perMonitorWallpaper) {
                    root.setPerMonitorWallpaper(true);
                }
                root.setMonitorWallpaper(screenName, absolutePath);
                return "SUCCESS: Wallpaper set for " + screenName + " to " + absolutePath;
            } catch (e) {
                return "ERROR: Failed to set wallpaper for " + screenName + ": " + e.toString();
            }
        }

        function nextFor(screenName: string): string {
            if (!screenName) {
                return "ERROR: No screen name provided";
            }

            var currentWallpaper = root.getMonitorWallpaper(screenName);
            if (!currentWallpaper) {
                return "ERROR: No wallpaper set for " + screenName;
            }

            try {
                WallpaperCyclingService.cycleNextForMonitor(screenName);
                return "SUCCESS: Cycling to next wallpaper for " + screenName;
            } catch (e) {
                return "ERROR: Failed to cycle wallpaper for " + screenName + ": " + e.toString();
            }
        }

        function prevFor(screenName: string): string {
            if (!screenName) {
                return "ERROR: No screen name provided";
            }

            var currentWallpaper = root.getMonitorWallpaper(screenName);
            if (!currentWallpaper) {
                return "ERROR: No wallpaper set for " + screenName;
            }

            try {
                WallpaperCyclingService.cyclePrevForMonitor(screenName);
                return "SUCCESS: Cycling to previous wallpaper for " + screenName;
            } catch (e) {
                return "ERROR: Failed to cycle wallpaper for " + screenName + ": " + e.toString();
            }
        }
    }
}