First commit (#1)

* ignore csv file used for data storage

* Initial commit

Author: ChrisCookOC

.gitignore

@@ -21,3 +21,4 @@
 
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
+/members.csv

pom.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--suppress MavenPackageUpdate -->
+<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>FitnessClub</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>5.9.1</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <properties>
+        <maven.compiler.source>19</maven.compiler.source>
+        <maven.compiler.target>19</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>

src/main/java/org/example/Calculator.java

@@ -0,0 +1,7 @@
+package org.example;
+
+public interface Calculator<T extends Number> {
+
+    double calculateFees(T clubID);
+
+}

src/main/java/org/example/FileHandler.java

@@ -0,0 +1,90 @@
+package org.example;
+
+import java.io.*;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
+import java.util.LinkedList;
+
+public class FileHandler {
+
+    public static final String MEMBERS_TEMP = "members.temp";
+    protected Path csvFileName;
+
+    public FileHandler() {
+        csvFileName = Paths.get("members.csv");
+    }
+
+    public LinkedList<Member> readFile() {
+        LinkedList<Member> members = new LinkedList<>();
+
+        Member memberPlaceholder;
+
+        try (BufferedReader reader = new BufferedReader(new FileReader(csvFileName.toString()))) {
+
+            String lineRead = reader.readLine();
+
+            while (lineRead != null) {
+
+                String[] fields = lineRead.split(", ");
+
+                //TODO index fields or something
+                //TODO errors
+
+                if (fields[0].equals("S")) {
+                    memberPlaceholder = new SingleMember(Integer.parseInt(fields[1]), fields[2], Double.parseDouble(fields[3]), Integer.parseInt(fields[4]));
+                } else {
+                    memberPlaceholder = new MultiClubMember(Integer.parseInt(fields[1]), fields[2], Double.parseDouble(fields[3]), Integer.parseInt(fields[4]));
+                }
+                members.add(memberPlaceholder);
+                lineRead = reader.readLine();
+            }
+
+        } catch (IOException e) {
+            System.out.println("Failed to parse data: " + e.getMessage());
+            members.clear();
+        }
+
+        return members;
+    }
+
+    public void appendFile(String member) {
+
+        try (BufferedWriter writer = new BufferedWriter(new FileWriter(csvFileName.toString(), true))) {
+            writer.write(member + '\n');
+
+        } catch (IOException e) {
+            System.out.println("Failed to update membership file: " + e.getMessage());
+        }
+
+    }
+
+    public void overwriteFile(LinkedList<Member> members) {
+
+        boolean moveFile = false;
+
+        try (BufferedWriter writer = new BufferedWriter(new FileWriter(MEMBERS_TEMP))) {
+
+            for (Member member : members) {
+                writer.write(member.toCSV());
+                writer.newLine();
+            }
+
+            moveFile = true;
+        } catch (IOException e) {
+            System.out.println("Failed to write data: " + e.getMessage());
+        }
+
+        if (moveFile) {
+            Path tempFile = Paths.get(MEMBERS_TEMP);
+
+            try {
+                Files.move(tempFile, csvFileName, StandardCopyOption.REPLACE_EXISTING);
+            } catch (IOException e) {
+                System.out.println("Failed to move temporary data file: " + e.getMessage());
+            }
+        }
+
+    }
+}

src/main/java/org/example/Main.java

@@ -0,0 +1,38 @@
+package org.example;
+
+import java.util.LinkedList;
+import java.util.Scanner;
+
+public class Main {
+    public static void main(String[] args) {
+        String memberString;
+
+        MembershipManagement membershipManagement = new MembershipManagement(new Scanner(System.in));
+        FileHandler fileHandler = new FileHandler();
+
+        LinkedList<Member> members = fileHandler.readFile();
+        int choice;
+
+        do {
+
+            choice = membershipManagement.getChoice();
+
+            switch (choice) {
+                case 1 -> {
+                    memberString = membershipManagement.addMembers(members);
+                    fileHandler.appendFile(memberString);
+                }
+                case 2 -> {
+                    membershipManagement.removeMember(members);
+                    fileHandler.overwriteFile(members);
+                }
+                case 3 -> membershipManagement.printMemberInfo(members);
+                case -1 -> System.out.println("Exiting");
+                default -> System.out.println("Invalid option selected");
+            }
+
+
+        } while (choice != -1);
+
+    }
+}

src/main/java/org/example/Member.java

@@ -0,0 +1,58 @@
+package org.example;
+
+public class Member {
+
+    protected MemberType memberType;
+    protected int memberID;
+    protected String name;
+    protected double fees;
+
+    public Member(MemberType pMemberType, int pMemberID, String pName, double pFees) {
+        memberType = pMemberType;
+        memberID = pMemberID;
+        name = pName;
+        fees = pFees;
+    }
+
+    public MemberType getMemberType() {
+        return memberType;
+    }
+
+    public void setMemberType(MemberType memberType) {
+        this.memberType = memberType;
+    }
+
+    public int getMemberID() {
+        return memberID;
+    }
+
+    public void setMemberID(int memberID) {
+        this.memberID = memberID;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public double getFees() {
+        return fees;
+    }
+
+    public void setFees(double fees) {
+        this.fees = fees;
+    }
+
+    @Override
+    public String toString() {
+        return "Membership type: " + memberType.toString() + "; Member ID: " + memberID
+                + "; Member: " + name + "; Fee: £" + String.format("%.2f", fees);
+    }
+
+    public String toCSV() {
+        return memberType.constant + ", " + memberID + ", " + name + ", " + fees;
+    }
+}

src/main/java/org/example/MemberType.java

@@ -0,0 +1,19 @@
+package org.example;
+
+public enum MemberType {
+    SingleBranch("Single branch", "S"),
+    MultiBranch("All branches", "M");
+
+    final String description;
+    final String constant;
+
+    MemberType(String desc, String pConstant) {
+        description = desc;
+        constant = pConstant;
+    }
+
+    @Override
+    public String toString() {
+        return description;
+    }
+}