DankMaterialShell/quickshell/Modules/Greetd/GreetdMemory.qml

pragma Singleton
pragma ComponentBehavior: Bound

import QtQuick
import Quickshell
import Quickshell.Io

Singleton {
    id: root

    readonly property string greetCfgDir: Quickshell.env("DMS_GREET_CFG_DIR") || "/etc/greetd/.dms"
    readonly property string sessionConfigPath: greetCfgDir + "/session.json"
    readonly property string memoryFile: greetCfgDir + "/memory.json"

    property string lastSessionId: ""
    property string lastSuccessfulUser: ""
    property bool isLightMode: false
    property bool nightModeEnabled: false

    Component.onCompleted: {
        Quickshell.execDetached(["mkdir", "-p", greetCfgDir]);
        loadMemory();
        loadSessionConfig();
    }

    function loadMemory() {
        parseMemory(memoryFileView.text());
    }

    function loadSessionConfig() {
        parseSessionConfig(sessionConfigFileView.text());
    }

    function parseSessionConfig(content) {
        try {
            if (content && content.trim()) {
                const config = JSON.parse(content);
                isLightMode = config.isLightMode !== undefined ? config.isLightMode : false;
                nightModeEnabled = config.nightModeEnabled !== undefined ? config.nightModeEnabled : false;
            }
        } catch (e) {
            console.warn("Failed to parse greeter session config:", e);
        }
    }

    function parseMemory(content) {
        try {
            if (!content || !content.trim())
                return;
            const memory = JSON.parse(content);
            lastSessionId = memory.lastSessionId || "";
            lastSuccessfulUser = memory.lastSuccessfulUser || "";
        } catch (e) {
            console.warn("Failed to parse greetd memory:", e);
        }
    }

    function saveMemory() {
        memoryFileView.setText(JSON.stringify({
            "lastSessionId": lastSessionId,
            "lastSuccessfulUser": lastSuccessfulUser
        }, null, 2));
    }

    function setLastSessionId(id) {
        lastSessionId = id || "";
        saveMemory();
    }

    function setLastSuccessfulUser(username) {
        lastSuccessfulUser = username || "";
        saveMemory();
    }

    FileView {
        id: memoryFileView
        path: root.memoryFile
        blockLoading: false
        blockWrites: false
        atomicWrites: true
        watchChanges: false
        printErrors: false
        onLoaded: {
            parseMemory(memoryFileView.text());
        }
    }

    FileView {
        id: sessionConfigFileView
        path: root.sessionConfigPath
        blockLoading: false
        blockWrites: true
        atomicWrites: false
        watchChanges: false
        printErrors: true
        onLoaded: {
            parseSessionConfig(sessionConfigFileView.text());
        }
        onLoadFailed: error => {
            console.warn("Could not load greeter session config from", root.sessionConfigPath, "error:", error);
        }
    }
}