commit 786d367b5f7bbf2445a87a58d632298ebe58e303
Author: Anastasia Tarazevich <anastasiya.tarazevich22@gmail.com>
Date:   Tue Jan 20 12:59:58 2026 +0300

    feat: Initial commit

diff --git a/libs/NTO-2025-Encoder-1.0-SNAPSHOT-obf.jar b/libs/NTO-2025-Encoder-1.0-SNAPSHOT-obf.jar
new file mode 100644
index 0000000..4a2cb86
Binary files /dev/null and b/libs/NTO-2025-Encoder-1.0-SNAPSHOT-obf.jar differ
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..ed31811
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.example</groupId>
+    <artifactId>NTO-2025-Individual-Task</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>3.5.5</version>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.liquibase</groupId>
+            <artifactId>liquibase-core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.example</groupId>
+            <artifactId>NTO-2025-Encoder</artifactId>
+            <version>1.0-SNAPSHOT</version>
+            <scope>system</scope>
+            <systemPath>${project.basedir}/libs/NTO-2025-Encoder-1.0-SNAPSHOT-obf.jar</systemPath>
+        </dependency>
+    </dependencies>
+
+</project>
\ No newline at end of file
diff --git a/src/main/java/ru/example/nto/App.java b/src/main/java/ru/example/nto/App.java
new file mode 100644
index 0000000..2b66c55
--- /dev/null
+++ b/src/main/java/ru/example/nto/App.java
@@ -0,0 +1,11 @@
+package ru.example.nto;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class App {
+    public static void main(String[] args) {
+        SpringApplication.run(App.class, args);
+    }
+}
diff --git a/src/main/java/ru/example/nto/controller/CodeController.java b/src/main/java/ru/example/nto/controller/CodeController.java
new file mode 100644
index 0000000..0bf37b7
--- /dev/null
+++ b/src/main/java/ru/example/nto/controller/CodeController.java
@@ -0,0 +1,39 @@
+package ru.example.nto.controller;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import ru.example.nto.service.DepartmentService;
+import ru.nto.security.Encoder;
+import ru.nto.security.EncoderApi;
+
+
+@RestController
+@RequestMapping("code")
+public class CodeController {
+    private final DepartmentService departmentService;
+    private final EncoderApi encoderApi = Encoder.create();
+
+    public CodeController(DepartmentService departmentService) {
+        this.departmentService = departmentService;
+    }
+
+    @GetMapping("/task1/{id}")
+    public int getTask1Code(@PathVariable long id) {
+        //Ответ: 1721890220 - (id % 100) * 17
+        return encoderApi.encode(null, id);
+    }
+
+    @GetMapping("/task2/{id}")
+    public int getTask2Code(@PathVariable long id) {
+        //Ответ: 951167143 - (id % 100) * 17
+        return encoderApi.encode(departmentService.getAll(), id);
+    }
+
+    @GetMapping("/task3/{id}")
+    public int getTask3Code(@PathVariable long id) {
+        //Ответ: 1650897291 - (id % 100) * 17
+        return encoderApi.encode(departmentService.getByName("Департамент аналитики"), id);
+    }
+}
diff --git a/src/main/java/ru/example/nto/controller/DepartmentController.java b/src/main/java/ru/example/nto/controller/DepartmentController.java
new file mode 100644
index 0000000..8290262
--- /dev/null
+++ b/src/main/java/ru/example/nto/controller/DepartmentController.java
@@ -0,0 +1,31 @@
+package ru.example.nto.controller;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.*;
+import ru.example.nto.entity.Department;
+import ru.example.nto.service.DepartmentService;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("api/v1/department")
+public class DepartmentController {
+
+    private final DepartmentService departmentService;
+
+    public DepartmentController(DepartmentService departmentService) {
+        this.departmentService = departmentService;
+    }
+
+    @GetMapping
+    @ResponseStatus(code = HttpStatus.OK)
+    public List<Department> getAll() {
+        return departmentService.getAll();
+    }
+
+    @GetMapping("/{name}")
+    @ResponseStatus(HttpStatus.OK)
+    public Department getByName(@PathVariable String name) {
+        return departmentService.getByName(name);
+    }
+}
diff --git a/src/main/java/ru/example/nto/entity/Department.java b/src/main/java/ru/example/nto/entity/Department.java
new file mode 100644
index 0000000..437e9ac
--- /dev/null
+++ b/src/main/java/ru/example/nto/entity/Department.java
@@ -0,0 +1,60 @@
+package ru.example.nto.entity;
+
+import jakarta.persistence.*;
+
+import java.util.Objects;
+
+@Entity
+@Table(name = "department")
+public class Department {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private long id;
+
+    @Column(name = "name")
+    private String name;
+
+    public Department() {
+    }
+
+    public Department(long id, String name) {
+        this.id = id;
+        this.name = name;
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    @Override
+    public String toString() {
+        return "Department{" +
+                "id=" + id +
+                ", name='" + name + '\'' +
+                '}';
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == null || getClass() != o.getClass()) return false;
+        Department that = (Department) o;
+        return id == that.id && Objects.equals(name, that.name);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id, name);
+    }
+}
diff --git a/src/main/java/ru/example/nto/exception/DepartmentNotFoundException.java b/src/main/java/ru/example/nto/exception/DepartmentNotFoundException.java
new file mode 100644
index 0000000..d0fe942
--- /dev/null
+++ b/src/main/java/ru/example/nto/exception/DepartmentNotFoundException.java
@@ -0,0 +1,7 @@
+package ru.example.nto.exception;
+
+public class DepartmentNotFoundException extends RuntimeException {
+    public DepartmentNotFoundException(String msg) {
+        super(msg);
+    }
+}
diff --git a/src/main/java/ru/example/nto/repository/DepartmentRepository.java b/src/main/java/ru/example/nto/repository/DepartmentRepository.java
new file mode 100644
index 0000000..873c2e8
--- /dev/null
+++ b/src/main/java/ru/example/nto/repository/DepartmentRepository.java
@@ -0,0 +1,10 @@
+package ru.example.nto.repository;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import ru.example.nto.entity.Department;
+
+import java.util.Optional;
+
+public interface DepartmentRepository extends JpaRepository<Department, Long> {
+    Optional<Department> findByName(String name);
+}
diff --git a/src/main/java/ru/example/nto/service/DepartmentService.java b/src/main/java/ru/example/nto/service/DepartmentService.java
new file mode 100644
index 0000000..012a9a8
--- /dev/null
+++ b/src/main/java/ru/example/nto/service/DepartmentService.java
@@ -0,0 +1,11 @@
+package ru.example.nto.service;
+
+import ru.example.nto.entity.Department;
+
+import java.util.List;
+
+public interface DepartmentService {
+    List<Department> getAll();
+
+    Department getByName(String name);
+}
diff --git a/src/main/java/ru/example/nto/service/impl/DepartmentServiceImpl.java b/src/main/java/ru/example/nto/service/impl/DepartmentServiceImpl.java
new file mode 100644
index 0000000..8eb13c8
--- /dev/null
+++ b/src/main/java/ru/example/nto/service/impl/DepartmentServiceImpl.java
@@ -0,0 +1,30 @@
+package ru.example.nto.service.impl;
+
+import org.springframework.stereotype.Service;
+import ru.example.nto.entity.Department;
+import ru.example.nto.exception.DepartmentNotFoundException;
+import ru.example.nto.repository.DepartmentRepository;
+import ru.example.nto.service.DepartmentService;
+
+import java.util.List;
+
+@Service
+public class DepartmentServiceImpl implements DepartmentService {
+
+    private final DepartmentRepository departmentRepository;
+
+    public DepartmentServiceImpl(DepartmentRepository departmentRepository) {
+        this.departmentRepository = departmentRepository;
+    }
+
+    @Override
+    public List<Department> getAll() {
+        return departmentRepository.findAll();
+    }
+
+    @Override
+    public Department getByName(String name) {
+        return departmentRepository.findByName(name)
+                .orElseThrow(() -> new DepartmentNotFoundException("Department " + name + " not found!"));
+    }
+}
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
new file mode 100644
index 0000000..2246a16
--- /dev/null
+++ b/src/main/resources/application.yml
@@ -0,0 +1,26 @@
+spring:
+  datasource:
+    url: jdbc:h2:mem:testdb
+
+  h2:
+    console:
+      #enabled: false
+      enabled: true
+
+  jpa:
+    generate-ddl: false
+    #generate-ddl: true
+
+    hibernate:
+      ddl-auto: none
+      #ddl-auto: create-drop
+
+    # Показываем запросы
+    show-sql: true
+
+  liquibase:
+    enabled: true
+    change-log: classpath:db.changelog/db.changelog-master.xml
+
+server:
+  port: 8083
\ No newline at end of file
diff --git a/src/main/resources/db.changelog/1.0/2025-10-12--0001-department.xml b/src/main/resources/db.changelog/1.0/2025-10-12--0001-department.xml
new file mode 100644
index 0000000..8451c4d
--- /dev/null
+++ b/src/main/resources/db.changelog/1.0/2025-10-12--0001-department.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+                   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                   xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext"
+                   xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
+                   http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.0.xsd
+        http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd">
+
+    <changeSet id="2025-10-12--0001-department" author="anepretimov">
+
+        <preConditions onFail="MARK_RAN">
+            <not>
+                <tableExists tableName="department"/>
+            </not>
+        </preConditions>
+
+        <createTable tableName="department">
+            <column name="id"
+                    type="NUMERIC(19,0)"
+                    autoIncrement="true">
+                <constraints primaryKey="true" nullable="false"/>
+            </column>
+
+            <column name="name" type="VARCHAR(100)">
+                <constraints nullable="false" unique="true"/>
+            </column>
+        </createTable>
+
+    </changeSet>
+
+</databaseChangeLog>
\ No newline at end of file
diff --git a/src/main/resources/db.changelog/data/2025-10-12--0001-department-data.xml b/src/main/resources/db.changelog/data/2025-10-12--0001-department-data.xml
new file mode 100644
index 0000000..bcbae22
--- /dev/null
+++ b/src/main/resources/db.changelog/data/2025-10-12--0001-department-data.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+                   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                   xmlns:ext="http://www.liquibase.org/xml/ns/dbchangelog-ext"
+                   xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
+                   http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.0.xsd
+        http://www.liquibase.org/xml/ns/dbchangelog-ext http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-ext.xsd">
+
+    <changeSet id="2025-10-12--0001-department-data" author="anepretimov">
+        <loadData tableName="department" file="db.changelog/data/csv/2025-10-12--0001-department-data.csv"
+                  separator=";"
+                  quotchar='"'
+                  encoding="UTF-8"/>
+    </changeSet>
+
+</databaseChangeLog>
\ No newline at end of file
diff --git a/src/main/resources/db.changelog/data/csv/2025-10-12--0001-department-data.csv b/src/main/resources/db.changelog/data/csv/2025-10-12--0001-department-data.csv
new file mode 100644
index 0000000..3ca7be3
--- /dev/null
+++ b/src/main/resources/db.changelog/data/csv/2025-10-12--0001-department-data.csv
@@ -0,0 +1,4 @@
+id;name
+1;Департамент по работе с персоналом
+2;Департамент информационных технологий
+3;Департамент аналитики
\ No newline at end of file
diff --git a/src/main/resources/db.changelog/db.changelog-master.xml b/src/main/resources/db.changelog/db.changelog-master.xml
new file mode 100644
index 0000000..d945125
--- /dev/null
+++ b/src/main/resources/db.changelog/db.changelog-master.xml
@@ -0,0 +1,10 @@
+<databaseChangeLog
+        xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
+        http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.8.xsd">
+
+    <include file="db.changelog/1.0/2025-10-12--0001-department.xml"/>
+    <include file="db.changelog/data/2025-10-12--0001-department-data.xml"/>
+
+</databaseChangeLog>
\ No newline at end of file