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.github/workflows/CI.yml

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+name: Test # autorun of the project build and tests
+
+on: 
+  workflow_dispatch:
+  pull_request:
+    paths:
+      - '**.kt'
+  push:
+    paths:
+      - '**.kt'
+jobs: 
+  test:
+    runs-on: ubuntu-latest 
+    steps: 				   
+      - name: Check out repository code
+        uses: actions/checkout@v4
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: '21'
+          distribution: zulu
+      - name: Build 
+        run: ./gradlew build -x test 
+      - name: Test
+        run: ./gradlew test 

.gitignore

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+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### IntelliJ IDEA ###
+.idea/
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

LICENSE

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+MIT License
+
+Copyright (c) 2024 Nabieva Liya, Tenyaeva Ekaterina, Migunova Anastasia
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

build.gradle.kts

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+import org.jetbrains.compose.desktop.application.dsl.TargetFormat
+
+plugins {
+  kotlin("jvm")
+  id("org.jetbrains.compose")
+}
+
+group = "org.example"
+version = "1.0-SNAPSHOT"
+
+repositories {
+  mavenCentral()
+  maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
+  google()
+}
+
+dependencies {
+  // Note, if you develop a library, you should use compose.desktop.common.
+  // compose.desktop.currentOs should be used in launcher-sourceSet
+  // (in a separate module for demo project and in testMain).
+  // With compose.desktop.common you will also lose @Preview functionality
+  implementation(compose.desktop.currentOs)
+  implementation(compose.material3)
+  implementation(compose.materialIconsExtended)
+  implementation("org.neo4j.driver", "neo4j-java-driver", "5.6.0")
+  implementation("com.google.code.gson:gson:2.10.1")
+  testImplementation("org.jetbrains.kotlin:kotlin-test")
+  testImplementation("io.kotest:kotest-runner-junit5-jvm:4.6.0")
+}
+
+tasks.test {
+  useJUnitPlatform()
+}
+kotlin {
+  jvmToolchain(21)
+}
+
+compose.desktop {
+  application {
+    mainClass = "MainKt"
+
+    nativeDistributions {
+      targetFormats(TargetFormat.Dmg, TargetFormat.Msi, TargetFormat.Deb)
+      packageName = "graph13"
+      packageVersion = "1.0.0"
+    }
+  }
+}

examples/dirLotsOfEdges.json

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+{"adjacency":{"1":{},"2":{},"3":{},"4":{},"5":{},"6":{},"7":{"8":0},"8":{"9":19},"9":{"7":2},"11":{},"12":{},"15":{},"19":{}},"vertices":{"1":{"id":1,"data":"1"},"2":{"id":2,"data":"2"},"3":{"id":3,"data":"3"},"4":{"id":4,"data":"4"},"5":{"id":5,"data":"5"},"6":{"id":6,"data":"6"},"7":{"id":7,"data":"7"},"8":{"id":8,"data":"8"},"9":{"id":9,"data":"9"},"10":{"id":10,"data":"10"},"11":{"id":11,"data":"11"},"12":{"id":12,"data":"12"},"13":{"id":13,"data":"13"},"14":{"id":14,"data":"14"},"15":{"id":15,"data":"15"},"16":{"id":16,"data":"16"},"17":{"id":17,"data":"17"},"18":{"id":18,"data":"18"},"19":{"id":19,"data":"19"},"20":{"id":20,"data":"20"}},"edges":[{"vertices":{"first":7,"second":8},"weight":0},{"vertices":{"first":8,"second":9},"weight":19},{"vertices":{"first":9,"second":7},"weight":2},{"vertices":{"first":1,"second":2},"weight":0},{"vertices":{"first":1,"second":3},"weight":0},{"vertices":{"first":1,"second":4},"weight":0},{"vertices":{"first":5,"second":6},"weight":0},{"vertices":{"first":18,"second":9},"weight":0},{"vertices":{"first":20,"second":14},"weight":0},{"vertices":{"first":12,"second":20},"weight":0},{"vertices":{"first":17,"second":13},"weight":0},{"vertices":{"first":1,"second":20},"weight":0},{"vertices":{"first":12,"second":6}},{"vertices":{"first":19,"second":12}},{"vertices":{"first":6,"second":18}},{"vertices":{"first":1,"second":14}},{"vertices":{"first":1,"second":15}},{"vertices":{"first":6,"second":20}},{"vertices":{"first":12,"second":1}},{"vertices":{"first":9,"second":19}},{"vertices":{"first":12,"second":9}},{"vertices":{"first":15,"second":6}},{"vertices":{"first":15,"second":5}},{"vertices":{"first":4,"second":11}},{"vertices":{"first":11,"second":20}},{"vertices":{"first":1,"second":9}},{"vertices":{"first":1,"second":18}},{"vertices":{"first":19,"second":1}},{"vertices":{"first":15,"second":19}},{"vertices":{"first":6,"second":19}}]}

examples/undirAverageNumberOfEdges.json

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+{"adjacency":{"1":{"10":5},"2":{"3":52,"4":10,"6":17,"9":65,"10":8},"3":{"2":52,"6":32,"8":14},"4":{"2":10,"5":18},"5":{"4":18,"8":20},"6":{"2":17,"3":32,"10":71},"7":{},"8":{"3":14,"5":20,"9":3,"10":21},"9":{"2":65,"8":3},"10":{"1":5,"2":8,"6":71,"8":21},"11":{"12":4},"12":{"11":4}},"vertices":{"1":{"id":1,"data":"1"},"2":{"id":2,"data":"2"},"3":{"id":3,"data":"3"},"4":{"id":4,"data":"4"},"5":{"id":5,"data":"5"},"6":{"id":6,"data":"6"},"7":{"id":7,"data":"7"},"8":{"id":8,"data":"8"},"9":{"id":9,"data":"9"},"10":{"id":10,"data":"10"},"11":{"id":11,"data":"11"},"12":{"id":12,"data":"12"}},"edges":[{"vertices":{"first":8,"second":5},"weight":20},{"vertices":{"first":5,"second":8},"weight":20},{"vertices":{"first":5,"second":4},"weight":18},{"vertices":{"first":4,"second":5},"weight":18},{"vertices":{"first":8,"second":9},"weight":3},{"vertices":{"first":9,"second":8},"weight":3},{"vertices":{"first":8,"second":3},"weight":14},{"vertices":{"first":3,"second":8},"weight":14},{"vertices":{"first":3,"second":6},"weight":32},{"vertices":{"first":6,"second":3},"weight":32},{"vertices":{"first":2,"second":9},"weight":65},{"vertices":{"first":9,"second":2},"weight":65},{"vertices":{"first":2,"second":3},"weight":52},{"vertices":{"first":3,"second":2},"weight":52},{"vertices":{"first":2,"second":4},"weight":10},{"vertices":{"first":4,"second":2},"weight":10},{"vertices":{"first":2,"second":6},"weight":17},{"vertices":{"first":6,"second":2},"weight":17},{"vertices":{"first":11,"second":12},"weight":4},{"vertices":{"first":12,"second":11},"weight":4},{"vertices":{"first":10,"second":8},"weight":21},{"vertices":{"first":8,"second":10},"weight":21},{"vertices":{"first":10,"second":6},"weight":71},{"vertices":{"first":6,"second":10},"weight":71},{"vertices":{"first":10,"second":1},"weight":5},{"vertices":{"first":1,"second":10},"weight":5},{"vertices":{"first":10,"second":2},"weight":8},{"vertices":{"first":2,"second":10},"weight":8}]}

examples/undirSimpleGraph.json

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+{"adjacency":{"1":{"2":3,"3":45,"5":21},"2":{"1":3,"4":20,"5":17},"3":{"1":45,"4":17,"5":8},"4":{"2":20,"3":17,"5":8},"5":{"1":21,"2":17,"3":8,"4":8}},"vertices":{"1":{"id":1,"data":"1"},"2":{"id":2,"data":"2"},"3":{"id":3,"data":"3"},"4":{"id":4,"data":"4"},"5":{"id":5,"data":"5"}},"edges":[{"vertices":{"first":1,"second":2},"weight":3},{"vertices":{"first":2,"second":1},"weight":3},{"vertices":{"first":2,"second":4},"weight":20},{"vertices":{"first":4,"second":2},"weight":20},{"vertices":{"first":1,"second":5},"weight":21},{"vertices":{"first":5,"second":1},"weight":21},{"vertices":{"first":4,"second":3},"weight":17},{"vertices":{"first":3,"second":4},"weight":17},{"vertices":{"first":5,"second":2},"weight":17},{"vertices":{"first":2,"second":5},"weight":17},{"vertices":{"first":3,"second":5},"weight":8},{"vertices":{"first":5,"second":3},"weight":8},{"vertices":{"first":3,"second":1},"weight":45},{"vertices":{"first":1,"second":3},"weight":45},{"vertices":{"first":4,"second":5},"weight":8},{"vertices":{"first":5,"second":4},"weight":8}]}

gradle.properties

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+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+kotlin.code.style=official
+kotlin.version=1.9.22
+compose.version=1.6.0

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

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+#!/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=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&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 "$JAVACMD" "$@"