initial commit

.gitignore

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

.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/dataSources.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DataSourceManagerImpl" format="xml" multifile-model="true">
+    <data-source source="LOCAL" name="@localhost" uuid="ab0522bd-1cfb-4e09-a121-85218f5838de">
+      <driver-ref>mysql.8</driver-ref>
+      <synchronize>true</synchronize>
+      <jdbc-driver>com.mysql.cj.jdbc.Driver</jdbc-driver>
+      <jdbc-url>jdbc:mysql://localhost:32768</jdbc-url>
+      <jdbc-additional-properties>
+        <property name="com.intellij.clouds.kubernetes.db.host.port" />
+        <property name="com.intellij.clouds.kubernetes.db.enabled" value="false" />
+        <property name="com.intellij.clouds.kubernetes.db.container.port" />
+      </jdbc-additional-properties>
+      <working-dir>$ProjectFileDir$</working-dir>
+    </data-source>
+  </component>
+</project>

.idea/discord.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DiscordProjectSettings">
+    <option name="show" value="PROJECT_FILES" />
+    <option name="description" value="" />
+  </component>
+</project>

.idea/encodings.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
+  </component>
+</project>

.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="21" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/sqldialects.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="SqlDialectMappings">
+    <file url="file://$PROJECT_DIR$/src/main/sql/main.sql" dialect="MySQL" />
+    <file url="PROJECT" dialect="MySQL" />
+  </component>
+</project>

.idea/vcs.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

pom.xml

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+<?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>comp353_assignment2</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>

src/main/sql/main.sql

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+-- Create the database
+CREATE DATABASE nplo_db;
+USE nplo_db;
+
+-- Create Member table
+CREATE TABLE Member
+(
+    MemberID             INT PRIMARY KEY AUTO_INCREMENT,
+    FirstName            VARCHAR(50)                          NOT NULL,
+    LastName             VARCHAR(50)                          NOT NULL,
+    MiddleInitial        CHAR(1),
+    DateOfBirth          DATE,
+    Address              VARCHAR(255),
+    Gender               ENUM ('Male', 'Female', 'Other'),
+    PhoneNumber          VARCHAR(20),
+    EmailAddress         VARCHAR(100),
+    SocialSecurityNumber VARCHAR(11),
+    MembershipStartDate  DATE,
+    MemberType           ENUM ('Donor', 'Client', 'Employee') NOT NULL
+);
+
+-- Create Donations table
+CREATE TABLE Donations
+(
+    DonationID     INT PRIMARY KEY AUTO_INCREMENT,
+    DonorID        INT,
+    DonationDate   DATE                       NOT NULL,
+    DonationType   ENUM ('Money', 'Products') NOT NULL,
+    DonationAmount DECIMAL(10, 2),
+    FOREIGN KEY (DonorID) REFERENCES Member (MemberID)
+);
+
+-- Create Products table
+CREATE TABLE Products
+(
+    ProductID    INT PRIMARY KEY AUTO_INCREMENT,
+    Description  TEXT,
+    DonationDate DATE,
+    SellingPrice DECIMAL(10, 2),
+    Weight       DECIMAL(5, 2),
+    InStock      BOOLEAN DEFAULT TRUE,
+    DonationID   INT,
+    FOREIGN KEY (DonationID) REFERENCES Donations (DonationID)
+);
+
+-- Create Sales table
+CREATE TABLE Sales
+(
+    SaleID      INT PRIMARY KEY AUTO_INCREMENT,
+    SaleDate    DATE           NOT NULL,
+    TotalAmount DECIMAL(10, 2) NOT NULL,
+    ClientID    INT,
+    DeliveryFee DECIMAL(10, 2),
+    FOREIGN KEY (ClientID) REFERENCES Member (MemberID)
+);
+
+-- Create SalesItems table
+CREATE TABLE SalesItems
+(
+    SaleItemID INT PRIMARY KEY AUTO_INCREMENT,
+    SaleID     INT,
+    ProductID  INT,
+    Quantity   INT,
+    FOREIGN KEY (SaleID) REFERENCES Sales (SaleID),
+    FOREIGN KEY (ProductID) REFERENCES Products (ProductID)
+);
+
+-- Create Employees table
+CREATE TABLE Employees
+(
+    EmployeeID INT PRIMARY KEY,
+    JobTitle   ENUM ('President', 'Vice-President', 'Cashier', 'Other') NOT NULL,
+    Salary     DECIMAL(10, 2),
+    FOREIGN KEY (EmployeeID) REFERENCES Member (MemberID)
+);
+
+-- Create Expenses table
+CREATE TABLE Expenses
+(
+    ExpenseID    INT PRIMARY KEY AUTO_INCREMENT,
+    ApprovedByID INT,
+    PaymentDate  DATE                                             NOT NULL,
+    Amount       DECIMAL(10, 2)                                   NOT NULL,
+    ExpenseType  ENUM ('Rent', 'Bill Payment', 'Charity Payment') NOT NULL,
+    Description  TEXT,
+    FOREIGN KEY (ApprovedByID) REFERENCES Employees (EmployeeID)
+);
+
+-- Add constraints and triggers
+
+-- Ensure only presidents can approve expenses
+CREATE TRIGGER chk_president_approval_insert
+    BEFORE INSERT
+    ON Expenses
+    FOR EACH ROW
+BEGIN
+    DECLARE job_title VARCHAR(255);
+
+    SELECT JobTitle
+    INTO job_title
+    FROM Employees
+    WHERE EmployeeID = NEW.ApprovedByID;
+
+    IF job_title != 'President' THEN
+        SIGNAL SQLSTATE '45000'
+            SET MESSAGE_TEXT = 'ApprovedByID must refer to an employee with the job title President';
+END IF;
+END;
+
+-- Trigger to update product stock status when sold
+DELIMITER //
+CREATE TRIGGER update_product_stock
+    AFTER INSERT
+    ON SalesItems
+    FOR EACH ROW
+BEGIN
+    UPDATE Products SET InStock = FALSE WHERE ProductID = NEW.ProductID;
+END;
+//
+DELIMITER ;
+
+-- Trigger to calculate and update delivery fee
+DELIMITER //
+CREATE TRIGGER calculate_delivery_fee
+    BEFORE INSERT
+    ON Sales
+    FOR EACH ROW
+BEGIN
+    DECLARE total_weight DECIMAL(10, 2);
+
+    SELECT SUM(p.Weight * si.Quantity)
+    INTO total_weight
+    FROM SalesItems si
+             JOIN Products p ON si.ProductID = p.ProductID
+    WHERE si.SaleID = NEW.SaleID;
+
+    SET NEW.DeliveryFee = total_weight * 6.50;
+    SET NEW.TotalAmount = NEW.TotalAmount + NEW.DeliveryFee;
+END;
+//
+DELIMITER ;
+
+-- Insert data into Member table
+INSERT INTO Member (FirstName, LastName, MiddleInitial, DateOfBirth, Address, Gender, PhoneNumber, EmailAddress,
+                    SocialSecurityNumber, MembershipStartDate, MemberType)
+VALUES ('John', 'Doe', 'A', '1980-05-15', '123 Main St, Anytown, USA', 'Male', '555-123-4567', 'john.doe@email.com',
+        '123-45-6789', '2022-01-01', 'Donor'),
+       ('Jane', 'Smith', 'B', '1985-08-22', '456 Elm St, Somewhere, USA', 'Female', '555-987-6543',
+        'jane.smith@email.com', '987-65-4321', '2022-02-15', 'Client'),
+       ('Bob', 'Johnson', 'C', '1975-03-10', '789 Oak St, Nowhere, USA', 'Male', '555-246-8135',
+        'bob.johnson@email.com', '246-81-3579', '2020-03-01', 'Employee'),
+       ('Darton', 'Johnson', 'C', '1972-11-11', '789 Oak St, Nowhere, USA', 'Male', '561-216-8835',
+        'darton.johnson@email.com', '148-46-2580', '2020-03-01', 'Employee'),
+       ('Alice', 'Williams', 'D', '1990-11-30', '321 Pine St, Everywhere, USA', 'Female', '555-369-2580',
+        'alice.williams@email.com', '369-25-8014', '2022-04-15', 'Donor');
+
+-- Insert data into Donations table
+INSERT INTO Donations (DonorID, DonationDate, DonationType, DonationAmount)
+VALUES (1, '2023-01-15', 'Money', 500.00),
+       (4, '2023-02-20', 'Products', NULL),
+       (1, '2023-03-10', 'Money', 250.00),
+       (4, '2023-04-05', 'Products', NULL);
+
+-- Insert data into Products table
+INSERT INTO Products (Description, DonationDate, SellingPrice, Weight, InStock, DonationID)
+VALUES ('Laptop', '2023-02-20', 300.00, 2.5, TRUE, 2),
+       ('Chair', '2023-02-20', 50.00, 5.0, TRUE, 2),
+       ('Bookshelf', '2023-04-05', 100.00, 20.0, TRUE, 4),
+       ('Microwave', '2023-04-05', 75.00, 10.0, TRUE, 4);
+
+-- Insert data into Sales table
+INSERT INTO Sales (SaleDate, TotalAmount, ClientID, DeliveryFee)
+VALUES ('2023-05-01', 350.00, 2, NULL),
+       ('2023-05-15', 100.00, 2, NULL);
+
+-- Insert data into SalesItems table
+INSERT INTO SalesItems (SaleID, ProductID, Quantity)
+VALUES (1, 1, 1),
+       (1, 2, 1),
+       (2, 3, 1);
+
+-- Insert data into Employees table
+INSERT INTO Employees (EmployeeID, JobTitle, Salary)
+VALUES (3, 'President', 100000.00),
+       (4, 'Cashier', 30000.00);
+
+-- Insert data into Expenses table
+INSERT INTO Expenses (ApprovedByID, PaymentDate, Amount, ExpenseType, Description)
+VALUES (3, '2023-06-01', 2000.00, 'Rent', 'Monthly office rent'),
+       (3, '2023-06-05', 500.00, 'Bill Payment', 'Electricity bill'),
+       (3, '2023-06-10', 1000.00, 'Charity Payment', 'Donation to local food bank');
+
+-- Part 2 Question 1
+# List the details of all the clients that are not volunteer employees and donors as well.
+# Details include client ID, first-name, last-name, middle-initial, date-of-birth, address,
+# gender, phone-number, email-address, social-security-number, job-title, and the start date
+# of membership
+SELECT
+    m.MemberID AS ClientID,
+    m.FirstName,
+    m.LastName,
+    m.MiddleInitial,
+    m.DateOfBirth,
+    m.Address,
+    m.Gender,
+    m.PhoneNumber,
+    m.EmailAddress,
+    m.SocialSecurityNumber,
+    e.JobTitle,
+    m.MembershipStartDate
+FROM
+    Member m
+        LEFT JOIN Employees e ON m.MemberID = e.EmployeeID
+WHERE
+    m.MemberType = 'Client'
+  AND m.MemberID IN (
+    SELECT DISTINCT DonorID
+    FROM Donations
+    WHERE DonorID IS NOT NULL
+)
+  AND (e.EmployeeID IS NULL OR e.Salary > 0);