Create view leaderboard command.

cogs/commands/__init__.py

@@ -10,6 +10,7 @@ from .help import HelpCog
 from .refresh import RefreshCog
 from .set import SetCog
 from .update import UpdateCog
+from .view import ViewCog
 
 
 # This function will be called when this extension is loaded.
@@ -24,3 +25,4 @@ def setup(bot: commands.Bot):
     bot.add_cog(RefreshCog(bot))
     bot.add_cog(SetCog())
     bot.add_cog(UpdateCog(bot))
+    bot.add_cog(ViewCog())

cogs/commands/view.py

@@ -1,3 +1,107 @@
 """
-_summary_
+View command heirarchy.
-"""
+"""
+
+import nextcord
+import pandas as pd
+from nextcord.ext import commands
+from sqlalchemy import select
+from sqlalchemy.orm import Session
+
+# pylint: disable=import-error
+from utilities.sql_data_classes import Category, CategoryGroup, Score, engine
+from utilities.utils import autofill_categories, autofill_groups, format_score_string
+
+
+class ViewCog(commands.Cog, name="View Command"):
+    """
+    Class holds commands for viewing data.
+    """
+
+    def __init__(self) -> None:
+        """
+        Default constructor for ViewCog class. Does nothing.
+        """
+
+    @nextcord.slash_command()
+    async def view(self, interaction: nextcord.Interaction):
+        """
+        Parent slash command for view. Never called.
+        """
+
+    @view.subcommand(description="Lists all scores for a given category.")
+    async def leaderboard(
+        self,
+        interaction: nextcord.Interaction,
+        group_id: str = nextcord.SlashOption(
+            name="group", description="Group to show leaderboard from.", required=True
+        ),
+        category_id: str = nextcord.SlashOption(
+            name="category", description="Category to show leaderboard.", required=True
+        ),
+    ):
+        """
+        Gathers all users that have a submission in the group/category combo and returns a message with them
+        in ranked order.
+
+        Args:
+            interaction (nextcord.Interaction): Interaction that invoked the command.
+            group_id (str): String representation of Group id to search from. Is SlashOption.
+            category_id (str): String representation of Category id to show leaderboard. Is SlashOption.
+        """
+        str_list: "list[str]" = []
+
+        # get group, category, and all scores sorted correctly.
+        with Session(engine) as session:
+            stmt = select(CategoryGroup).where(CategoryGroup.GroupId == int(group_id))
+            group = session.scalar(stmt)
+
+            stmt = select(Category).where(Category.CategoryId == int(category_id))
+            category = session.scalar(stmt)
+
+            d_f = pd.read_sql_query(
+                sql=session.query(Score).where(Score.CategoryId == category_id).statement, con=engine
+            )
+
+        scores = d_f.sort_values("Score", ascending=category.IsAscending).reset_index()
+
+        for i, row in scores.iterrows():
+            str_list.append(
+                format_score_string(
+                    row["UserName"], row["Score"], group.UsernameLength, category.IsTimeRecord, i + 1, group.PadLength
+                )
+            )
+
+        message_str: str = f"**{group.GroupName} {category.CategoryName} Leaderboard!**\n"
+        if len(str_list) == 0:
+            message_str += "No Submissions!"
+        else:
+            for line in str_list:
+                message_str += f"{line}\n"
+
+        await interaction.response.send_message(content=message_str)
+
+    @leaderboard.on_autocomplete("group_id")
+    async def group_autocomplete(self, interaction: nextcord.Interaction, group_id: str):
+        """
+        Autocomplete function for table names.
+
+        Args:
+            interaction (nextcord.Interaction): Interaction that invoked the command.
+            group_id (str): String to be autocompleted with Group name.
+        """
+        await interaction.response.send_autocomplete(autofill_groups(interaction.guild_id, group_id))
+
+    @leaderboard.on_autocomplete("category_id")
+    async def category_autocomplete(self, interaction: nextcord.Interaction, category_id: str, group_id: str):
+        """
+        Autocomplete function for category names.
+
+        Args:
+            interaction (nextcord.Interaction): Interaction that invoked the command.
+            category_id (str): String to be autocompleted with Category name.
+            group_id (str): Group to find Category from.
+        """
+        await interaction.response.send_autocomplete(
+            autofill_categories(interaction.guild_id, int(group_id), category_id)
+        )