1 files changed, 40 insertions, 0 deletions
diff --git a/source/cart.js b/source/cart.js
new file mode 100644
index 0000000..05989f0
--- /dev/null
+++ b/source/cart.js
@@ -0,0 +1,40 @@
+const session = require('session')
+const database = require('database')
+const cart = new Map()
+
+// Handles cart functionality
+class Cart {
+    constructor() {}
+
+    Add(x) {
+        if (session().Exists(x) === true) {
+            if (this.Exists(x.cookie) === false) {
+                this.cart = new Map()
+                database('EStore').Query('SELECT * FROM Products WHERE id = ' + x.id).then(output => {
+                    if (x.qty <= output[0].qty) {cart.set(x.cookie, this.cart.get(x.id, x.qty))} else {return 'Added'}
+                })
+            } else {
+                this.cart = cart.get(x.cookie)
+                if (!this.cart.get(x.id)) {
+                    database('EStore').Query('SELECT * FROM Products WHERE id = ' + x.id).then(output => {
+                        if (x.qty <= output[0].qty) {this.cart.set(x.id, x.qty)} else {return 'Added'}
+                    })
+                } else {return 'Added'}
+            }
+        }
+    }
+    Exists(x) {return cart.has(x)}
+
+    static Set(x) {
+        this.cart = cart.get(x.cookie)
+        this.cart.forEach((value, key) => this.cart.delete(key))
+    }
+    static GetCart(x) {
+        this.cart = cart.get(x)
+        if (this.cart !== undefined) {if (this.cart.size > 0) return this.cart} else {return false}
+    }
+    static Remove(x) {if (session().Exists(x.cookie) === true) for (let i = 0; i < x.items.length; i++) cart.get(x.cookie.delete(x.items[i]))}
+}
+
+module.exports = () => {return new Cart()}
+