Add card dropping and collection command

commands/collection.js

@@ -0,0 +1,48 @@
+const { SlashCommandBuilder } = require("@discordjs/builders");
+const { Card, User, Character } = require("../models");
+
+//fetch all cards owned by the user and list them
+module.exports = {
+    data: new SlashCommandBuilder()
+            .setName("collection")
+            .setDescription("List all cards in your collection"),
+    async execute(interaction) {
+        //fetch the user given the userID
+        const user = await User.findOne({
+            where: {
+                userID: interaction.member.id
+            }
+        });
+
+        //fetch all cards give the user id
+        const cards = await Card.findAll({
+            where: {
+                ownerID: user.id
+            },
+            include: [{
+                model: Character,
+                as: "character"
+            }]
+        });
+
+        //if the user has no cards, tell him
+        if (cards.length === 0) {
+            interaction.reply({
+                content: "You have no cards in your collection",
+                ephemeral: true
+            });
+            return;
+        }
+
+        //if the user has cards, list them
+        let message = "";
+        for (let i = 0; i < cards.length; i++) {
+            message += `${cards[i].id} - ${cards[i].characterID} ${cards[i].character.name} \n`;
+        }
+        interaction.reply({
+            content: message,
+            ephemeral: false
+        });
+                
+    }
+}