Initial commit

.gitignore

@@ -0,0 +1,74 @@
+# This file is used to ignore files which are generated
+# ----------------------------------------------------------------------------
+
+*~
+*.autosave
+*.a
+*.core
+*.moc
+*.o
+*.obj
+*.orig
+*.rej
+*.so
+*.so.*
+*_pch.h.cpp
+*_resource.rc
+*.qm
+.#*
+*.*#
+core
+!core/
+tags
+.DS_Store
+.directory
+*.debug
+Makefile*
+*.prl
+*.app
+moc_*.cpp
+ui_*.h
+qrc_*.cpp
+Thumbs.db
+*.res
+*.rc
+/.qmake.cache
+/.qmake.stash
+
+# qtcreator generated files
+*.pro.user*
+CMakeLists.txt.user*
+
+# xemacs temporary files
+*.flc
+
+# Vim temporary files
+.*.swp
+
+# Visual Studio generated files
+*.ib_pdb_index
+*.idb
+*.ilk
+*.pdb
+*.sln
+*.suo
+*.vcproj
+*vcproj.*.*.user
+*.ncb
+*.sdf
+*.opensdf
+*.vcxproj
+*vcxproj.*
+
+# MinGW generated files
+*.Debug
+*.Release
+
+# Python byte code
+*.pyc
+
+# Binaries
+# --------
+*.dll
+*.exe
+

CMakeLists.txt

@@ -0,0 +1,76 @@
+cmake_minimum_required(VERSION 3.14)
+
+project(beerlog VERSION 0.1 LANGUAGES CXX)
+
+set(CMAKE_AUTOUIC ON)
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS Core Quick WebSockets LinguistTools)
+find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Core Quick WebSockets LinguistTools)
+
+set(TS_FILES beerlog_ru_RU.ts)
+
+set(PROJECT_SOURCES
+        main.cpp
+        qml.qrc
+        models/summarymodel.h models/summarymodel.cpp
+        models/usersmodel.h models/usersmodel.cpp
+        services/beerservice.h services/beerservice.cpp
+        services/settingsservice.h services/settingsservice.cpp
+        ${TS_FILES}
+)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+if(${QT_VERSION_MAJOR} GREATER_EQUAL 6)
+    qt_add_executable(beerlog
+        MANUAL_FINALIZATION
+        ${PROJECT_SOURCES}
+    )
+# Define target properties for Android with Qt 6 as:
+#    set_property(TARGET beerlog APPEND PROPERTY QT_ANDROID_PACKAGE_SOURCE_DIR
+#                 ${CMAKE_CURRENT_SOURCE_DIR}/android)
+# For more information, see https://doc.qt.io/qt-6/qt-add-executable.html#target-creation
+
+    qt_create_translation(QM_FILES ${CMAKE_SOURCE_DIR} ${TS_FILES})
+else()
+    if(ANDROID)
+        add_library(beerlog SHARED
+            ${PROJECT_SOURCES}
+        )
+# Define properties for Android with Qt 5 after find_package() calls as:
+#    set(ANDROID_PACKAGE_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/android")
+    else()
+        add_executable(beerlog
+          ${PROJECT_SOURCES}
+        )
+    endif()
+
+    qt5_create_translation(QM_FILES ${CMAKE_SOURCE_DIR} ${TS_FILES})
+endif()
+
+qt_add_translations(beerlog TS_FILES beerlog_ru_RU.ts)
+
+target_link_libraries(beerlog
+  PRIVATE Qt${QT_VERSION_MAJOR}::Core Qt${QT_VERSION_MAJOR}::Quick Qt${QT_VERSION_MAJOR}::WebSockets)
+
+set_target_properties(beerlog PROPERTIES
+    MACOSX_BUNDLE_GUI_IDENTIFIER my.example.com
+    MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
+    MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
+    MACOSX_BUNDLE TRUE
+    WIN32_EXECUTABLE TRUE
+)
+
+#install(TARGETS beerlog
+#    BUNDLE DESTINATION .
+#    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
+
+if(QT_VERSION_MAJOR EQUAL 6)
+    qt_import_qml_plugins(beerlog)
+    qt_finalize_executable(beerlog)
+endif()

android/AndroidManifest.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="ru.ded.beerlog" android:installLocation="auto" android:versionCode="0.0.1" android:versionName="-- %%INSERT_VERSION_NAME%% --">
+    <!-- %%INSERT_PERMISSIONS -->
+    <!-- %%INSERT_FEATURES -->
+    <supports-screens android:anyDensity="true" android:largeScreens="true" android:normalScreens="true" android:smallScreens="true"/>
+    <application android:name="org.qtproject.qt.android.bindings.QtApplication" android:extractNativeLibs="true" android:hardwareAccelerated="true" android:label="BeerLog" android:requestLegacyExternalStorage="true" android:allowNativeHeapPointerTagging="false">
+        <activity android:name="org.qtproject.qt.android.bindings.QtActivity" android:configChanges="orientation|uiMode|screenLayout|screenSize|smallestScreenSize|layoutDirection|locale|fontScale|keyboard|keyboardHidden|navigation|mcc|mnc|density" android:label="BeerLog" android:launchMode="singleTop" android:screenOrientation="unspecified">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+            <meta-data android:name="android.app.lib_name" android:value="-- %%INSERT_APP_LIB_NAME%% --"/>
+            <meta-data android:name="android.app.arguments" android:value="-- %%INSERT_APP_ARGUMENTS%% --"/>
+            <meta-data android:name="android.app.extract_android_style" android:value="minimal"/>
+        </activity>
+    </application>
+</manifest>

android/build.gradle

@@ -0,0 +1,78 @@
+buildscript {
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:7.0.2'
+    }
+}
+
+repositories {
+    google()
+    mavenCentral()
+}
+
+apply plugin: 'com.android.application'
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar', '*.aar'])
+}
+
+android {
+    /*******************************************************
+     * The following variables:
+     * - androidBuildToolsVersion,
+     * - androidCompileSdkVersion
+     * - qtAndroidDir - holds the path to qt android files
+     *                   needed to build any Qt application
+     *                   on Android.
+     *
+     * are defined in gradle.properties file. This file is
+     * updated by QtCreator and androiddeployqt tools.
+     * Changing them manually might break the compilation!
+     *******************************************************/
+
+    compileSdkVersion androidCompileSdkVersion.toInteger()
+    buildToolsVersion androidBuildToolsVersion
+    ndkVersion androidNdkVersion
+
+    sourceSets {
+        main {
+            manifest.srcFile 'AndroidManifest.xml'
+            java.srcDirs = [qtAndroidDir + '/src', 'src', 'java']
+            aidl.srcDirs = [qtAndroidDir + '/src', 'src', 'aidl']
+            res.srcDirs = [qtAndroidDir + '/res', 'res']
+            resources.srcDirs = ['resources']
+            renderscript.srcDirs = ['src']
+            assets.srcDirs = ['assets']
+            jniLibs.srcDirs = ['libs']
+       }
+    }
+
+    tasks.withType(JavaCompile) {
+        options.incremental = true
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    lintOptions {
+        abortOnError false
+    }
+
+    // Do not compress Qt binary resources file
+    aaptOptions {
+        noCompress 'rcc'
+    }
+
+    defaultConfig {
+        resConfig "en"
+        minSdkVersion qtMinSdkVersion
+        targetSdkVersion qtTargetSdkVersion
+        ndk.abiFilters = qtTargetAbiList.split(",")
+    }
+}

android/gradle.properties

@@ -0,0 +1,14 @@
+# Project-wide Gradle settings.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2500m -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+
+# Enable building projects in parallel
+org.gradle.parallel=true
+
+# Gradle caching allows reusing the build artifacts from a previous
+# build with the same inputs. However, over time, the cache size will
+# grow. Uncomment the following line to enable it.
+#org.gradle.caching=true

android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

android/gradlew

@@ -0,0 +1,234 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='-Dfile.encoding=UTF-8 "-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

android/gradlew.bat

@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=-Dfile.encoding=UTF-8 "-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

android/res/values/libs.xml

@@ -0,0 +1,20 @@
+<?xml version='1.0' encoding='utf-8'?>
+<resources>
+    <!-- DO NOT EDIT THIS: This file is populated automatically by the deployment tool. -->
+
+    <array name="bundled_libs">
+        <!-- %%INSERT_EXTRA_LIBS%% -->
+    </array>
+
+    <array name="qt_libs">
+        <!-- %%INSERT_QT_LIBS%% -->
+    </array>
+
+    <array name="load_local_libs">
+        <!-- %%INSERT_LOCAL_LIBS%% -->
+    </array>
+
+    <string name="static_init_classes"><!-- %%INSERT_INIT_CLASSES%% --></string>
+    <string name="use_local_qt_libs"><!-- %%USE_LOCAL_QT_LIBS%% --></string>
+    <string name="bundle_local_qt_libs"><!-- %%BUNDLE_LOCAL_QT_LIBS%% --></string>
+</resources>

beerlog_ru_RU.ts

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.1" language="ru_RU">
+<context>
+    <name>main</name>
+    <message>
+        <location filename="main.qml" line="13"/>
+        <source>Beer Log</source>
+        <translation></translation>
+    </message>
+    <message>
+        <location filename="main.qml" line="19"/>
+        <source>‹</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="main.qml" line="28"/>
+        <source>⋮</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Summary: %1 р.</source>
+        <translation type="vanished">Итого: %1 р.</translation>
+    </message>
+    <message>
+        <source>Order</source>
+        <translation type="vanished">Заказать</translation>
+    </message>
+    <message>
+        <source>Ordered %1 items. Amount: %2 р.</source>
+        <translation type="vanished">Заказано %1 позиций на сумму %2 р.</translation>
+    </message>
+</context>
+</TS>

main.cpp

@@ -0,0 +1,44 @@
+#include <QGuiApplication>
+#include <QQmlApplicationEngine>
+
+#include <QLocale>
+#include <QTranslator>
+#include <QQmlContext>
+
+#include "models/summarymodel.h"
+#include "models/usersmodel.h"
+#include "services/beerservice.h"
+
+int main(int argc, char *argv[])
+{
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
+    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
+#endif
+    QGuiApplication app(argc, argv);
+
+    QTranslator translator;
+    const QStringList uiLanguages = QLocale::system().uiLanguages();
+    for (const QString &locale : uiLanguages) {
+        const QString baseName = "beerlog_" + QLocale(locale).name();
+        if (translator.load(":/i18n/" + baseName)) {
+            app.installTranslator(&translator);
+            break;
+        }
+    }
+
+    QQmlApplicationEngine engine;
+    const QUrl url(QStringLiteral("qrc:/main.qml"));
+    QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
+                     &app, [url](QObject *obj, const QUrl &objUrl) {
+        if (!obj && url == objUrl)
+            QCoreApplication::exit(-1);
+    }, Qt::QueuedConnection);
+
+    engine.rootContext()->setContextProperty("beerService", new BeerService(&engine));
+    qmlRegisterType<SummaryModel>("ru.ded.beerlog", 1, 0, "SummaryModel");
+    qmlRegisterType<UsersModel>("ru.ded.beerlog", 1, 0, "UsersModel");
+
+    engine.load(url);
+
+    return app.exec();
+}

main.qml

@@ -0,0 +1,63 @@
+import QtQuick 2.15
+import QtQuick.Window 2.15
+import QtQuick.Controls 2.15
+import QtQuick.Layouts 1.15
+import QtWebSockets
+
+import ru.ded.beerlog 1.0
+
+ApplicationWindow {
+    width: 640
+    height: 480
+    visible: true
+    title: qsTr("Beer Log")
+
+    header: ToolBar {
+        RowLayout {
+            anchors.fill: parent
+            ToolButton {
+                text: qsTr("‹")
+                onClicked: stack.pop()
+            }
+            ToolButton {
+                text: usersModel.selectedUserName
+                Layout.fillWidth: true
+                onClicked: usersMenu.open()
+            }
+            ToolButton {
+                text: qsTr("⋮")
+                onClicked: menu.open()
+            }
+        }
+
+        Menu {
+            id: usersMenu
+
+            Repeater {
+                model: usersModel.users
+
+                MenuItem {
+                    text: modelData.name
+
+                    onClicked: {
+                        usersModel.selectedUser = modelData.id
+                    }
+                }
+            }
+        }
+    }
+
+    UsersModel {
+        id: usersModel
+
+        Component.onCompleted: {
+            beerService.connectSrv(selectedUser)
+            beerService.connectListener(usersModel)
+            beerService.sendCommand("users", "get")
+        }
+
+        onSelectedUserChanged: {
+            beerService.connectSrv(selectedUser)
+        }
+    }
+}

models/summarymodel.cpp

@@ -0,0 +1,39 @@
+#include "summarymodel.h"
+
+QVariantList SummaryModel::items() const
+{
+    return m_items.values();
+}
+
+float SummaryModel::sum() const
+{
+    float res = 0.0;
+    for (auto it = m_items.constBegin(); it != m_items.constEnd(); ++it) {
+        QVariantMap item = it.value().toMap();
+        int count = item.value("count", 0).toInt();
+        float price = item.value("cost", 0.0).toFloat();
+        res += count * price;
+    }
+    return res;
+}
+
+void SummaryModel::setItemCount(QVariantMap item, int count)
+{
+    QString id = item.value("id", QString()).toString();
+
+    if (count) {
+        item["count"] = count;
+        m_items[id] = item;
+    } else {
+        m_items.remove(id);
+    }
+
+    emit itemsChanged();
+}
+
+void SummaryModel::clear()
+{
+    m_items.clear();
+
+    emit itemsChanged();
+}

models/summarymodel.h

@@ -0,0 +1,28 @@
+#ifndef SUMMARYMODEL_H
+#define SUMMARYMODEL_H
+
+#include <QObject>
+#include <QVariantMap>
+
+class SummaryModel : public QObject
+{
+    Q_OBJECT
+
+    Q_PROPERTY(QVariantList items READ items NOTIFY itemsChanged)
+    Q_PROPERTY(float sum READ sum NOTIFY itemsChanged)
+
+public:
+    QVariantList items() const;
+    float sum() const;
+
+    Q_INVOKABLE void setItemCount(QVariantMap item, int count);
+    Q_INVOKABLE void clear();
+
+signals:
+    void itemsChanged();
+
+private:
+    QVariantMap m_items;
+};
+
+#endif // SUMMARYMODEL_H

models/usersmodel.cpp

@@ -0,0 +1,80 @@
+#include "usersmodel.h"
+
+UsersModel::UsersModel(QObject *parent)
+    : QObject{parent}
+{
+    setSelectedUser(m_settings.value("selected_user").toString());
+}
+
+void UsersModel::created(const QVariant &data)
+{
+    modified(data);
+}
+
+void UsersModel::modified(const QVariant &data)
+{
+    QVariantMap user = data.toMap();
+    m_users[user.value("id").toString()] = user;
+
+    emit usersChanged();
+    emit selectedUserNameChanged();
+}
+
+void UsersModel::deleted(const QVariant &data)
+{
+    QString userId = data.toString();
+    m_users.remove(userId);
+
+    emit usersChanged();
+    emit selectedUserNameChanged();
+}
+
+void UsersModel::received(const QVariant &data)
+{
+    m_users = data.toMap();
+
+    emit usersChanged();
+    emit selectedUserNameChanged();
+}
+
+void UsersModel::connected(const QVariant &data)
+{
+    qInfo() << data.toMap().value("name").toString() << "connected";
+}
+
+void UsersModel::disconnected(const QVariant &data)
+{
+    qInfo() << data.toMap().value("name").toString() << "disconnected";
+}
+
+QString UsersModel::entity() const
+{
+    return QStringLiteral("users");
+}
+
+QVariantList UsersModel::users() const
+{
+    return m_users.values();
+}
+
+QString UsersModel::selectedUser() const
+{
+    return m_selectedUser;
+}
+
+void UsersModel::setSelectedUser(const QString &newSelectedUser)
+{
+    if (m_selectedUser == newSelectedUser) {
+        return;
+    }
+
+    m_selectedUser = newSelectedUser;
+    m_settings.setValue("selected_user", m_selectedUser);
+    emit selectedUserChanged();
+    emit selectedUserNameChanged();
+}
+
+QString UsersModel::selectedUserName() const
+{
+    return m_users.value(m_selectedUser).toMap().value("name").toString();
+}

models/usersmodel.h

@@ -0,0 +1,47 @@
+#ifndef USERSMODEL_H
+#define USERSMODEL_H
+
+#include <QObject>
+#include <QVariantMap>
+
+#include "services/settingsservice.h"
+
+class UsersModel : public QObject
+{
+    Q_OBJECT
+
+    Q_PROPERTY(QString entity READ entity CONSTANT)
+    Q_PROPERTY(QVariantList users READ users NOTIFY usersChanged)
+    Q_PROPERTY(QString selectedUser READ selectedUser WRITE setSelectedUser NOTIFY selectedUserChanged)
+    Q_PROPERTY(QString selectedUserName READ selectedUserName NOTIFY selectedUserNameChanged)
+
+public:
+    explicit UsersModel(QObject *parent = nullptr);
+
+    QString entity() const;
+    QVariantList users() const;
+    QString selectedUser() const;
+    void setSelectedUser(const QString &newSelectedUser);
+    QString selectedUserName() const;
+
+public slots:
+    void created(const QVariant &data);
+    void modified(const QVariant &data);
+    void deleted(const QVariant &data);
+    void received(const QVariant &data);
+    void connected(const QVariant &data);
+    void disconnected(const QVariant &data);
+
+signals:
+    void usersChanged();
+    void selectedUserChanged();
+    void selectedUserNameChanged();
+
+private:
+    QVariantMap m_users;
+    QString m_selectedUser;
+
+    SettingsService m_settings;
+};
+
+#endif // USERSMODEL_H

qml.qrc

@@ -0,0 +1,6 @@
+<RCC>
+    <qresource prefix="/">
+        <file>main.qml</file>
+        <file>beerlog_ru_RU.qm</file>
+    </qresource>
+</RCC>

services/beerservice.cpp

@@ -0,0 +1,122 @@
+#include "beerservice.h"
+
+#include <QJsonDocument>
+#include <QJsonObject>
+#include <QJsonArray>
+#include <QStandardPaths>
+#include <QFile>
+#include <QDebug>
+
+namespace {
+
+constexpr auto GuestUserId = "2641ffe8cd4311eda27f0242ac120002";
+
+}
+
+BeerService::BeerService(QObject *parent)
+    : QObject{parent}
+{
+    restoreStash();
+
+    connect(&m_socket, &QWebSocket::textMessageReceived, this, [this](QString message) {
+        QJsonParseError err;
+        QJsonDocument doc = QJsonDocument::fromJson(message.toLocal8Bit(), &err);
+        if (err.error != QJsonParseError::NoError) {
+            qWarning() << "Json parse error:" << err.errorString() << message;
+            return;
+        }
+
+        QString entity = doc.object().value("entity").toString();
+        const QList<QObject *> listeners = m_listeners.values(entity);
+        for (QObject *listener : listeners) {
+            QString event = doc.object().value("event").toString();
+            QVariant data = doc.object().value("data").toVariant();
+            QMetaObject::invokeMethod(listener, event.toLatin1(), Qt::QueuedConnection, Q_ARG(QVariant, data));
+        }
+    });
+
+    connect(&m_socket, QOverload<QAbstractSocket::SocketError>::of(&QWebSocket::error), this, [this](QAbstractSocket::SocketError error) {
+        qInfo() << error << m_socket.errorString();
+    });
+
+    connect(&m_socket, &QWebSocket::connected, this, [this]() {
+        while (!m_commandStash.isEmpty()) {
+            sendCommand(m_commandStash.takeFirst().toMap());
+        }
+    });
+}
+
+BeerService::~BeerService()
+{
+    saveStash();
+    m_socket.close();
+}
+
+void BeerService::connectSrv(const QString &userId)
+{
+    if (QAbstractSocket::ConnectedState == m_socket.state()) {
+        m_socket.close();
+    }
+
+    QNetworkRequest request(QUrl("ws://195.133.196.161:8000"));
+    QString authString = QString("%1:pass").arg(userId.isEmpty() ? GuestUserId : userId);
+    request.setRawHeader("Authorization", "Basic " + authString.toLatin1().toBase64());
+    m_socket.open(request);
+}
+
+void BeerService::sendCommand(const QString &entity, const QString &action, const QVariantMap &data)
+{
+    sendCommand(QVariantMap {
+                    { "entity", entity },
+                    { "action", action },
+                    { "data", data }
+                });
+}
+
+void BeerService::connectListener(QObject *listener)
+{
+    QString entity = listener->property("entity").toString();
+    m_listeners.insert(entity, listener);
+}
+
+QString BeerService::stashFileName() const
+{
+    return QStandardPaths::writableLocation(QStandardPaths::CacheLocation) + "/command.stash";
+}
+
+void BeerService::saveStash() const
+{
+    if (m_commandStash.isEmpty()) {
+        return;
+    }
+
+    QFile stash(stashFileName());
+    if (stash.open(QIODevice::WriteOnly)) {
+        stash.write(QJsonDocument::fromVariant(m_commandStash).toJson(QJsonDocument::Compact));
+        stash.close();
+    } else {
+        qWarning() << stash.errorString();
+    }
+}
+
+void BeerService::restoreStash()
+{
+    QFile stash(stashFileName());
+    if (stash.open(QIODevice::ReadOnly)) {
+        QJsonDocument doc = QJsonDocument::fromJson(stash.readAll());
+        m_commandStash = doc.array().toVariantList();
+        stash.close();
+    } else {
+        qWarning() << stash.errorString();
+    }
+}
+
+void BeerService::sendCommand(const QVariantMap &command)
+{
+    if (QAbstractSocket::ConnectedState == m_socket.state()) {
+        QJsonDocument doc = QJsonDocument::fromVariant(command);
+        m_socket.sendTextMessage(doc.toJson(QJsonDocument::Compact));
+    } else {
+        m_commandStash << command;
+    }
+}

services/beerservice.h

@@ -0,0 +1,31 @@
+#ifndef BEERSERVICE_H
+#define BEERSERVICE_H
+
+#include <QObject>
+#include <QtWebSockets/QWebSocket>
+
+class BeerService : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit BeerService(QObject *parent = nullptr);
+    ~BeerService();
+
+    Q_INVOKABLE void connectSrv(const QString &userId = QString());
+    Q_INVOKABLE void sendCommand(const QString &entity, const QString &action, const QVariantMap &data = QVariantMap());
+    Q_INVOKABLE void connectListener(QObject *listener);
+
+private:
+    QString stashFileName() const;
+    void saveStash() const;
+    void restoreStash();
+    void sendCommand(const QVariantMap &command);
+
+    QMultiMap<QString, QObject *> m_listeners;
+
+    QWebSocket m_socket;
+    QVariantList m_commandStash;
+};
+
+#endif // BEERSERVICE_H

services/settingsservice.cpp

@@ -0,0 +1,11 @@
+#include "settingsservice.h"
+
+QVariant SettingsService::value(const QString &key, const QVariant &defaultValue) const
+{
+    return m_settings.value(key, defaultValue);
+}
+
+void SettingsService::setValue(const QString &key, const QVariant &value)
+{
+    m_settings.setValue(key, value);
+}

services/settingsservice.h

@@ -0,0 +1,16 @@
+#ifndef SETTINGSSERVICE_H
+#define SETTINGSSERVICE_H
+
+#include <QSettings>
+
+class SettingsService
+{
+public:
+    QVariant value(const QString &key, const QVariant &defaultValue = QVariant()) const;
+    void setValue(const QString &key, const QVariant &value);
+
+private:
+    QSettings m_settings = QSettings("DedSoft", "BeerLog");
+};
+
+#endif // SETTINGSSERVICE_H