diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..6e8359c --- /dev/null +++ b/.gitignore @@ -0,0 +1,45 @@ +.gradle +build/ +!gradle/wrapper/gradle-wrapper.jar +!**/src/main/**/build/ +!**/src/test/**/build/ + +bookingDb.txt + +### IntelliJ IDEA ### +.idea/ +.idea/modules.xml +.idea/jarRepositories.xml +.idea/compiler.xml +.idea/libraries/ +*.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 \ No newline at end of file diff --git a/build.gradle.kts b/build.gradle.kts new file mode 100644 index 0000000..b4c6aaf --- /dev/null +++ b/build.gradle.kts @@ -0,0 +1,32 @@ +plugins { + id("java") +} + +group = "org.example" +version = "1.0-SNAPSHOT" + +repositories { + mavenCentral() +} + +dependencies { + testImplementation(platform("org.junit:junit-bom:5.10.0")) + testImplementation("org.junit.jupiter:junit-jupiter") + testRuntimeOnly("org.junit.platform:junit-platform-launcher") +} + +tasks.test { + useJUnitPlatform() +} +tasks.register("runLesson") { + group = "Execution" + description = "Run a specified main class" + if (project.hasProperty("mainClass")) { + mainClass.set(project.property("mainClass") as String) + classpath = sourceSets.main.get().runtimeClasspath + } else { + throw GradleException("Please specify mainClass. Example: ./gradlew runLesson -PmainClass=lessons.lesson02.Main") + } + + standardInput = System.`in` +} diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 0000000..249e583 Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 0000000..213e688 --- /dev/null +++ b/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,6 @@ +#Fri Sep 26 12:12:43 UZT 2025 +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-8.14-bin.zip +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/gradlew b/gradlew new file mode 100755 index 0000000..1b6c787 --- /dev/null +++ b/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=${0##*/} + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD=maximum + +warn () { + echo "$*" +} >&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 "$JAVACMD" "$@" diff --git a/gradlew.bat b/gradlew.bat new file mode 100644 index 0000000..ac1b06f --- /dev/null +++ b/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="-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 diff --git a/settings.gradle.kts b/settings.gradle.kts new file mode 100644 index 0000000..32f0fe9 --- /dev/null +++ b/settings.gradle.kts @@ -0,0 +1 @@ +rootProject.name = "java-core" \ No newline at end of file diff --git a/src/main/java/lessons/lesson06/BookingApplication.java b/src/main/java/lessons/lesson06/BookingApplication.java new file mode 100644 index 0000000..1504722 --- /dev/null +++ b/src/main/java/lessons/lesson06/BookingApplication.java @@ -0,0 +1,66 @@ +package lessons.lesson06; + +import lessons.lesson06.db.Booking; +import lessons.lesson06.db.BookingDbManager; +import lessons.lesson06.db.BookingRepository; +import lessons.lesson06.service.PlaneDisplayService; +import lessons.lesson06.service.UserInputService; +import lessons.lesson06.utils.Utils; + +import java.util.Map; +import java.util.Scanner; + +public class BookingApplication { + public static void main(String[] args) { + try (Scanner scanner = new Scanner(System.in)) { + BookingSystem bookingSystem = getBookingSystem(scanner); + + bookingSystem.printPlane(); + printKeyboard(); + System.out.print("Choose action: "); + + while (true) { + String choice = scanner.nextLine(); + + switch (choice) { + case "I" -> { + bookingSystem.getBookingFlight(); + printKeyboard(); + System.out.print("Choose action: "); + } + + case "B" -> { + bookingSystem.bookASeat(); + Utils.clearTerminal(); + bookingSystem.printPlane(); + printKeyboard(); + System.out.print("Choose action: "); + } + + case "Q" -> System.exit(0); + } + } + + + } catch (Exception e) { + System.out.printf("Error - %s\n", e.getMessage()); + } + } + + public static void printKeyboard() { + System.out.println("\n[I] - Get booking info | [B] - Book a seat | [Q] - Quit"); + } + + + public static BookingSystem getBookingSystem(final Scanner scanner) throws Exception { + Map data = BookingDbManager.getData(); + + BookingRepository bookingRepository = new BookingRepository(data); + + UserInputService userInputService = new UserInputService(scanner, bookingRepository); + + PlaneDisplayService planeDisplayService = new PlaneDisplayService(); + + return new BookingSystem(userInputService, bookingRepository, planeDisplayService); + } +} diff --git a/src/main/java/lessons/lesson06/BookingSystem.java b/src/main/java/lessons/lesson06/BookingSystem.java new file mode 100644 index 0000000..0e6fc8c --- /dev/null +++ b/src/main/java/lessons/lesson06/BookingSystem.java @@ -0,0 +1,95 @@ +package lessons.lesson06; + +import java.io.IOException; +import lessons.lesson06.db.Booking; +import lessons.lesson06.db.BookingRepository; +import lessons.lesson06.service.PlaneDisplayService; +import lessons.lesson06.service.UserInputService; +import lessons.lesson06.utils.PlaceClassEnum; + +public class BookingSystem { + private final UserInputService userInputService; + private final BookingRepository bookingRepository; + private final PlaneDisplayService planeDisplayService; + + private final int MAX_ROWS = 15; + + public BookingSystem( + UserInputService userInputService, + BookingRepository bookingRepository, + PlaneDisplayService planeDisplayService) { + this.planeDisplayService = planeDisplayService; + this.userInputService = userInputService; + this.bookingRepository = bookingRepository; + } + + public void getBookingFlight() { + String code = userInputService.promptSeatCode(); + + Booking booking = bookingRepository.findByCode(code).orElse(null); + + if (booking == null) { + System.out.println("Seat is free to book"); + return; + } + + System.out.println(booking); + } + + public boolean isBusinessClass(final String code) { + int col = Integer.parseInt(code.substring(1)); + return (col >= 1 && col <= 5); + } + + public void bookASeat() { + String code = userInputService.promptSeatCodeToBook(); + + String fio = userInputService.promptFio(); + + boolean isBusinessClass = isBusinessClass(code); + + PlaceClassEnum placeClassEnum = + isBusinessClass ? PlaceClassEnum.BUSINESS : PlaceClassEnum.ECONOMY; + + Booking booking = new Booking(code, fio, placeClassEnum); + + try { + bookingRepository.save(booking); + System.out.println("Place successfully booked!"); + } catch (IOException e) { + System.out.printf("Error - %s\n", e.getMessage()); + } + } + + public void printPlane() { + String[] cols = {"F", "E", "D", "C", "B", "A"}; + + for (String col : cols) { + if (col.equals("E") || col.equals("B")) { + System.out.print(" ".repeat(35)); + System.out.print("|| "); + } + + for (int i = 1; i <= MAX_ROWS; i++) { + if (i < 6 && (col.equals("E") || col.equals("B"))) { + continue; + } + + String code = String.format("%s%d", col, i); + boolean isSeatBooked = bookingRepository.existsByCode(code); + String seatDisplay = planeDisplayService.getSeatDisplay(code, isSeatBooked); + System.out.print(seatDisplay); + + if (i == 5) { + System.out.print("|| "); + } + } + + if (col.equals("D")) { + System.out.print("\n\n"); + } + + System.out.print("\n"); + } + } +} diff --git a/src/main/java/lessons/lesson06/db/Booking.java b/src/main/java/lessons/lesson06/db/Booking.java new file mode 100644 index 0000000..a4611ec --- /dev/null +++ b/src/main/java/lessons/lesson06/db/Booking.java @@ -0,0 +1,11 @@ +package lessons.lesson06.db; + +import lessons.lesson06.utils.PlaceClassEnum; + +public record Booking(String code, String fio, PlaceClassEnum placeClass) { + + @Override + public String toString() { + return String.format("Seat code: %s\nFio: %s\nClass: %s", code, fio, placeClass); + } +} diff --git a/src/main/java/lessons/lesson06/db/BookingDbManager.java b/src/main/java/lessons/lesson06/db/BookingDbManager.java new file mode 100644 index 0000000..8a6a0b7 --- /dev/null +++ b/src/main/java/lessons/lesson06/db/BookingDbManager.java @@ -0,0 +1,56 @@ +package lessons.lesson06.db; + +import lessons.lesson06.utils.PlaceClassEnum; +import lessons.lesson06.exceptions.DatabaseCorruptedException; + +import java.io.BufferedReader; +import java.io.BufferedWriter; +import java.io.File; +import java.io.FileReader; +import java.io.FileWriter; +import java.io.IOException; +import java.util.HashMap; +import java.util.Map; + +public class BookingDbManager { + private final static String dbFilePath = "bookingDb.txt"; + + public static Map getData() throws IOException, DatabaseCorruptedException { + Map data = new HashMap<>(); + + + File file = new File(dbFilePath); + + if (!file.exists()) { + boolean fileCreated = file.createNewFile(); + + if (!fileCreated) throw new IOException("File cannot be created"); + } + + try (BufferedReader reader = new BufferedReader(new FileReader(dbFilePath))) { + String line; + while ((line = reader.readLine()) != null) { + String[] lineParts = line.split(";"); + + if (lineParts.length != 3) throw new DatabaseCorruptedException("Database corrupted"); + + PlaceClassEnum placeClass = PlaceClassEnum.valueOf(lineParts[2]); + + Booking booking = new Booking(lineParts[0], lineParts[1], placeClass); + + data.put(booking.code(), booking); + } + } + + return data; + } + + public static void storeBookingInfo(final Booking booking) throws IOException { + String dataString = String.format("%s;%s;%s", booking.code(), booking.fio(), booking.placeClass()); + + try (FileWriter fileWriter = new FileWriter(dbFilePath, true); BufferedWriter bufferedWriter = new BufferedWriter(fileWriter)) { + bufferedWriter.write(dataString); + bufferedWriter.newLine(); + } + } +} diff --git a/src/main/java/lessons/lesson06/db/BookingRepository.java b/src/main/java/lessons/lesson06/db/BookingRepository.java new file mode 100644 index 0000000..681e85d --- /dev/null +++ b/src/main/java/lessons/lesson06/db/BookingRepository.java @@ -0,0 +1,39 @@ +package lessons.lesson06.db; + +import java.io.IOException; +import java.util.List; +import java.util.Map; +import java.util.Optional; + +public class BookingRepository { + private final Map data; + + public BookingRepository(Map data) { + this.data = data; + } + + + public List findAll() { + return data.values().stream().toList(); + } + + + public boolean existsByCode(final String code) { + return data.containsKey(code); + } + + + public Optional findByCode(final String code) { + return Optional.ofNullable(data.get(code)); + } + + + public void save(final Booking booking) throws IOException { + String code = booking.code(); + + data.put(code, booking); + + BookingDbManager.storeBookingInfo(booking); + } + +} diff --git a/src/main/java/lessons/lesson06/exceptions/DatabaseCorruptedException.java b/src/main/java/lessons/lesson06/exceptions/DatabaseCorruptedException.java new file mode 100644 index 0000000..bdc79ca --- /dev/null +++ b/src/main/java/lessons/lesson06/exceptions/DatabaseCorruptedException.java @@ -0,0 +1,7 @@ +package lessons.lesson06.exceptions; + +public class DatabaseCorruptedException extends RuntimeException { + public DatabaseCorruptedException(String message) { + super(message); + } +} diff --git a/src/main/java/lessons/lesson06/service/PlaneDisplayService.java b/src/main/java/lessons/lesson06/service/PlaneDisplayService.java new file mode 100644 index 0000000..b86d131 --- /dev/null +++ b/src/main/java/lessons/lesson06/service/PlaneDisplayService.java @@ -0,0 +1,43 @@ +package lessons.lesson06.service; + +import lessons.lesson06.utils.Utils; + +public class PlaneDisplayService { + + public boolean isBusinessClass(final String code) { + int col = Integer.parseInt(code.substring(1)); + return (col >= 1 && col <= 5); + } + + + public String getSeatDisplay(final String code, final boolean isBooked) { + String seatDisplay; + + if (isBooked) { + seatDisplay = bookedDisplay(code); + } else { + boolean isBusinessClass = isBusinessClass(code); + + if (isBusinessClass) { + seatDisplay = businessClassDisplay(code); + } else { + seatDisplay = economyClassDisplay(code); + } + } + + return seatDisplay; + } + + public String bookedDisplay(final String code) { + return String.format("\u001B[41m[ %s ]%s ", code, Utils.RESET_COLOR); + } + + + public String businessClassDisplay(final String code) { + return String.format("\u001B[43m[ %s ]%s ", code, Utils.RESET_COLOR); + } + + public String economyClassDisplay(final String code) { + return String.format("\u001B[45m[ %s ]%s ", code, Utils.RESET_COLOR); + } +} diff --git a/src/main/java/lessons/lesson06/service/UserInputService.java b/src/main/java/lessons/lesson06/service/UserInputService.java new file mode 100644 index 0000000..e7df2ec --- /dev/null +++ b/src/main/java/lessons/lesson06/service/UserInputService.java @@ -0,0 +1,60 @@ +package lessons.lesson06.service; + +import lessons.lesson06.db.BookingRepository; + +import java.util.Scanner; + +public class UserInputService { + private final Scanner scanner; + private final BookingRepository bookingRepository; + + public UserInputService(Scanner scanner, BookingRepository bookingRepository) { + this.scanner = scanner; + this.bookingRepository = bookingRepository; + } + + public boolean isSeatCodeValid(final String code) { + if (code.length() < 2 || code.length() > 3) return false; + + char row = code.charAt(0); + int col = Integer.parseInt(code.substring(1)); + + boolean validBusinessRow = (col >= 1 && col <= 5) && (row >= 'A' && row <= 'F') && row != 'B' && row != 'E'; + boolean validBrokeRow = (col >= 6 && col <= 21) && (row >= 'A' && row <= 'F'); + + return validBusinessRow || validBrokeRow; + } + + public String promptSeatCodeToBook() { + String code = promptSeatCode(); + + boolean isPlaceBooked = bookingRepository.existsByCode(code); + + if (isPlaceBooked) { + System.out.println("Place is already book. Please choose another one"); + return promptSeatCodeToBook(); + } + + return code; + } + + + public String promptSeatCode() { + System.out.print("Enter code of seat (e.g: A1, E3): "); + + String code = scanner.nextLine(); + + if (!isSeatCodeValid(code)) { + System.out.println("Seat code invalid"); + return promptSeatCode(); + } + + return code; + } + + public String promptFio() { + System.out.print("Enter fio: "); + + return scanner.nextLine(); + } +} diff --git a/src/main/java/lessons/lesson06/utils/PlaceClassEnum.java b/src/main/java/lessons/lesson06/utils/PlaceClassEnum.java new file mode 100644 index 0000000..6ac41f2 --- /dev/null +++ b/src/main/java/lessons/lesson06/utils/PlaceClassEnum.java @@ -0,0 +1,6 @@ +package lessons.lesson06.utils; + +public enum PlaceClassEnum { + BUSINESS, + ECONOMY +} diff --git a/src/main/java/lessons/lesson06/utils/Utils.java b/src/main/java/lessons/lesson06/utils/Utils.java new file mode 100644 index 0000000..50e3435 --- /dev/null +++ b/src/main/java/lessons/lesson06/utils/Utils.java @@ -0,0 +1,10 @@ +package lessons.lesson06.utils; + +public class Utils { + public static final String RESET_COLOR = "\033[0m"; + + public static void clearTerminal() { + System.out.print("\033[H\033[2J"); + System.out.flush(); + } +}