feat: add list command to retrieve and paginate user files

cmd/list.ts

@@ -0,0 +1,107 @@
+import { ActionRowBuilder, ButtonBuilder, ButtonStyle, CacheType, ChatInputCommandInteraction, Events, Interaction, InteractionReplyOptions, MessageFlags, SlashCommandBuilder, User } from "discord.js";
+import { db } from "../db/db";
+import { b64decode, b64encode } from "../lib/b64";
+import { createEmbed } from "../lib/embed";
+import { formatSize } from "../lib/files";
+import { StereoFile } from "../types/files";
+
+export const data = new SlashCommandBuilder()
+    .setName("list")
+    .setDescription("list all of your files")
+    .addIntegerOption(option => 
+        option.setName("page")
+            .setDescription("page number to view")
+            .setRequired(false)
+            .setMinValue(1)
+    );
+
+export async function renderList(user: User, userId: string, page: number): Promise<InteractionReplyOptions> {
+    const amount = 2;
+
+    const { count } = await db.get<{ count: number }>`
+        SELECT COUNT(*) as count FROM files WHERE owner = ${userId}
+    `;
+    const totalPages = Math.max(1, Math.ceil(count / amount));
+    const pages = Math.max(1, Math.min(page, totalPages));
+
+    const files = await db.all<StereoFile[]>`
+        SELECT * FROM files WHERE owner = ${userId}
+        ORDER BY created_at DESC
+        LIMIT ${amount} OFFSET ${(pages - 1) * amount}
+    `;
+
+    if (files.length === 0) {
+        return { content: "you havn't uploaded any files yet, visit the website to get started!", flags: MessageFlags.Ephemeral };
+    }
+
+    const embed = createEmbed(user)
+        .setTitle("your files")
+        .addFields(...files.map(file => ({
+            name: file.name,
+            value: `${formatSize(file.size)}\n${new Date(file.created_at).toLocaleString()}\n[open in browser](${process.env.API}/${file.id})`,
+            inline: true
+        })))
+        .setFooter({ text: `page ${pages} of ${totalPages}` });
+
+    const row = new ActionRowBuilder<ButtonBuilder>()
+        .addComponents(
+            new ButtonBuilder()
+                .setCustomId(b64encode({ dir: "prev", user: userId, page: pages }))
+                .setLabel('<')
+                .setStyle(ButtonStyle.Danger)
+                .setDisabled(pages === 1),
+            new ButtonBuilder()
+                .setCustomId(b64encode({ dir: "next", user: userId, page: pages }))
+                .setLabel('>')
+                .setStyle(ButtonStyle.Danger)
+                .setDisabled(pages === totalPages)
+        );
+
+    return { embeds: [embed], components: [row] };
+}
+
+export const execute = async (interaction: ChatInputCommandInteraction) => {
+    const page = interaction.options.getInteger("page") || 1;
+    const userId = interaction.user.id;
+    const reply = await renderList(interaction.user, userId, page);
+    await interaction.reply(reply);
+};
+
+export const on: {
+    [event in Events]?: (interaction: Interaction<CacheType>) => Promise<void>;
+} = {
+    [Events.InteractionCreate]: async (interaction: Interaction<CacheType>) => {
+        if (!interaction.isButton()) return;
+        // old, cursed code :vomit:
+
+        // const match = interaction.customId.match(/^s\.list\.(prev|next)\.(\d+)$/);
+        // if (!match) return;
+
+        // let page = parseInt(match[2] || "1", 10);
+        // page = match[1] === "next" ? page + 1 : page - 1;
+
+        // const dirtyReply = await renderList(interaction.user, interaction.user.id, page);
+        // const { flags, ...reply } = dirtyReply;
+        // await interaction.update({ ...reply });
+
+        // new, clean code :sunglasses:
+
+        const data = b64decode<{
+            dir: "next" | "prev";
+            user: string;
+            page: number;
+        }>(interaction.customId);
+
+        if (interaction.user.id !== data.user) {
+            await interaction.reply({ content: "hey, stop that!!!", flags: MessageFlags.Ephemeral });
+            return;
+        }
+
+        const page = data.dir === "next" ? data.page + 1 : data.page - 1;
+        const dirty = await renderList(interaction.user, interaction.user.id, page);
+        const { flags, ...r } = dirty;
+        await interaction.update({ ...r });
+    }
+}
+
+export default [data, execute, on] as const;