From b716f3660bcbc1158d3fa06843f72975efa199fa Mon Sep 17 00:00:00 2001
From: Parker <contact@pkrm.dev>
Date: Sat, 30 Nov 2024 00:16:17 -0600
Subject: [PATCH] Add queue paging with buttons

---
 code/cogs/queue.py | 106 +++++++++++++++++++++++++++++++++------------
 1 file changed, 79 insertions(+), 27 deletions(-)

diff --git a/code/cogs/queue.py b/code/cogs/queue.py
index af32af2..48931cf 100644
--- a/code/cogs/queue.py
+++ b/code/cogs/queue.py
@@ -8,6 +8,36 @@ import lavalink
 
 from utils.config import create_embed
 
+"""
+Create an embed for the queue given the current queue and desired page number/pages
+"""
+
+
+def create_queue_embed(queue: list, page: int, pages: int):
+    items_per_page = 10
+    start = (page - 1) * items_per_page
+    end = start + items_per_page
+
+    queue_list = ""
+    for index, track in enumerate(queue[start:end], start=start):
+        # Change ms duration to hour, min, sec in the format of 00:00:00
+        track_duration = lavalink.utils.format_time(track.duration)
+        # If the track is less than an hour, remove the hour from the duration
+        if track_duration.split(":")[0] == "00":
+            track_duration = track_duration[3:]
+
+        queue_list += (
+            f"`{index+1}. ` [{track.title}]({track.uri}) -"
+            f" {track.author} `({track_duration})`\n"
+        )
+
+    embed = create_embed(
+        title=f"Current Song Queue",
+        description=f"**{len(queue)} total tracks**\n\n{queue_list}",
+        footer=f"Page {page}/{pages}",
+    )
+    return embed
+
 
 class Queue(commands.Cog):
     def __init__(self, bot):
@@ -22,6 +52,11 @@ class Queue(commands.Cog):
         "See the current queue of songs"
         player = self.bot.lavalink.player_manager.get(interaction.guild.id)
 
+        pages = math.ceil(len(player.queue) / 10)
+        # Force page to 1 if an invalid page is provided
+        if page < 1 or page > pages:
+            page = 1
+
         if not player.queue:
             embed = create_embed(
                 title="Nothing Queued",
@@ -34,34 +69,51 @@ class Queue(commands.Cog):
                 embed=embed, ephemeral=True
             )
 
-        items_per_page = 10
-        pages = math.ceil(len(player.queue) / items_per_page)
-
-        start = (page - 1) * items_per_page
-        end = start + items_per_page
-
-        queue_list = ""
-        for index, track in enumerate(player.queue[start:end], start=start):
-            # Change ms duration to hour, min, sec in the format of 00:00:00
-            track_duration = lavalink.utils.format_time(track.duration)
-            # If the track is less than an hour, remove the hour from the duration
-            if track_duration.split(":")[0] == "00":
-                track_duration = track_duration[3:]
-
-            queue_list += (
-                f"`{index+1}. ` [{track.title}]({track.uri}) -"
-                f" {track.author} `({track_duration})`\n"
-            )
-
-        embed = create_embed(
-            title=f"Current Song Queue",
-            description=(
-                f"**{len(player.queue)} total tracks**\n\n{queue_list}"
-            ),
-            footer=f"Page {page}/{pages}",
-        )
-        await interaction.response.send_message(embed=embed)
+        embed = create_queue_embed(player.queue, page, pages)
+        view = QueueView(page, pages, player.queue)
+        await interaction.response.send_message(embed=embed, view=view)
 
 
 async def setup(bot):
     await bot.add_cog(Queue(bot))
+
+
+class QueueView(discord.ui.View):
+    def __init__(self, page: int, pages: int, queue: list):
+        super().__init__()
+        self.page = page
+        self.pages = pages
+        self.queue = queue
+        # Create the previous and next buttons
+        self.previous_button = discord.ui.Button(
+            label="Previous", style=discord.ButtonStyle.gray
+        )
+        # Determine if the button should be disabled, add callback, add to view
+        self.previous_button.disabled = self.page <= 1
+        self.previous_button.callback = self.previous_page
+        self.add_item(self.previous_button)
+
+        self.next_button = discord.ui.Button(
+            label="Next", style=discord.ButtonStyle.gray
+        )
+        self.next_button.disabled = self.page >= self.pages
+        self.next_button.callback = self.next_page
+        self.add_item(self.next_button)
+
+    async def previous_page(self, interaction: discord.Interaction):
+        # Decrement the page number, recreate the embed, determine if the
+        # button should be disabled, and update the message
+        self.page -= 1
+        embed = create_queue_embed(self.queue, self.page, self.pages)
+        self.previous_button.disabled = self.page <= 1
+        self.next_button.disabled = self.page >= self.pages
+        await interaction.response.edit_message(embed=embed, view=self)
+
+    async def next_page(self, interaction: discord.Interaction):
+        # Increment the page number, recreate the embed, determine if the
+        # button should be disabled, and update the message
+        self.page += 1
+        embed = create_queue_embed(self.queue, self.page, self.pages)
+        self.previous_button.disabled = self.page <= 1
+        self.next_button.disabled = self.page >= self.pages
+        await interaction.response.edit_message(embed=embed, view=self)