Create shopping server

server/models/ShoppingItem.js

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+const { DataTypes } = require('sequelize');
+
+module.exports = (sequelize) => {
+  const ShoppingItem = sequelize.define('ShoppingItem', {
+    id: {
+      type: DataTypes.INTEGER,
+      primaryKey: true,
+      autoIncrement: true,
+    },
+    name: {
+      type: DataTypes.STRING,
+      allowNull: false,
+      validate: {
+        notEmpty: true,
+      },
+    },
+    amount: {
+      type: DataTypes.STRING,
+      allowNull: false,
+      defaultValue: '1',
+    },
+    checked: {
+      type: DataTypes.BOOLEAN,
+      defaultValue: false,
+    },
+    checkedAt: {
+      type: DataTypes.DATE,
+      allowNull: true,
+    },
+    date: {
+      type: DataTypes.DATE,
+      allowNull: false,
+      defaultValue: DataTypes.NOW,
+    },
+  }, {
+    timestamps: true,
+    hooks: {
+      beforeUpdate: (item, options) => {
+        // Set checkedAt timestamp when item is checked
+        if (item.checked && !item.previous('checked')) {
+          item.checkedAt = new Date();
+        } else if (!item.checked) {
+          item.checkedAt = null;
+        }
+      },
+    },
+  });
+
+  return ShoppingItem;
+};

server/models/index.js

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+const { Sequelize } = require('sequelize');
+const path = require('path');
+
+// Initialize Sequelize with SQLite
+const sequelize = new Sequelize({
+  dialect: 'sqlite',
+  storage: path.join(__dirname, '../database.sqlite'),
+  logging: false, // Set to console.log to see SQL queries
+});
+
+// Import models
+const ShoppingItem = require('./ShoppingItem')(sequelize);
+
+// Function to clean up checked items older than 2 hours
+const cleanupCheckedItems = async () => {
+  try {
+    const twoHoursAgo = new Date(Date.now() - 2 * 60 * 60 * 1000);
+    const deletedCount = await ShoppingItem.destroy({
+      where: {
+        checked: true,
+        checkedAt: {
+          [Sequelize.Op.lt]: twoHoursAgo,
+        },
+      },
+    });
+    
+    if (deletedCount > 0) {
+      console.log(`Cleaned up ${deletedCount} checked items older than 2 hours`);
+    }
+  } catch (error) {
+    console.error('Error cleaning up checked items:', error);
+  }
+};
+
+// Run cleanup every 30 minutes
+setInterval(cleanupCheckedItems, 30 * 60 * 1000);
+
+module.exports = {
+  sequelize,
+  ShoppingItem,
+  cleanupCheckedItems,
+};