feat(command/moderation): adding the kick command

- This command is for kick user from the guild

src/commands/moderation/kick.rs

@@ -0,0 +1,114 @@
+use crate::commands::{CommandCategory, CommandEntry, SlashCommand};
+use crate::config::EmojiConfig;
+
+use serenity::all::{
+    CommandInteraction, CommandOptionType, Context, CreateCommand, CreateCommandOption, CreateInteractionResponse, CreateInteractionResponseMessage, EditInteractionResponse, GetMessages, Guild, GuildId, InteractionContext, Member, Message, MessageId, Permissions, Role, User, UserId
+};
+use sqlx::PgPool;
+use tracing::{debug, info};
+use anyhow::Result;
+
+pub struct Kick;
+
+fn format_reason(reason: Option<&str>, executor: &str) -> String {
+    match reason {
+        Some(s) => format!("[TTY kick] {} by {}", s, executor),
+        None => format!("[TTY kick] by {}", executor)
+    }
+}
+
+#[serenity::async_trait]
+impl SlashCommand for Kick {
+    fn name(&self) -> &'static str {
+        "kick"
+    }
+
+    fn description(&self) -> &'static str {
+        "Kick the user provided"
+    }
+
+    fn category(&self) -> &'static CommandCategory {
+        &CommandCategory::Moderation
+    }
+
+    fn register(&self) -> CreateCommand {
+        info!("\t✅ | {}", self.name());
+        let mut options: Vec<CreateCommandOption> = Vec::new();
+
+        let target: CreateCommandOption = CreateCommandOption::new(CommandOptionType::User, "user", "The user to kick")
+            .required(true);
+        options.push(target);
+
+        let reason: CreateCommandOption = CreateCommandOption::new(CommandOptionType::String, "reason", "The reason to kick this user")
+            .required(false);
+        options.push(reason);
+
+        CreateCommand::new(self.name())
+            .description(self.description())
+            .default_member_permissions(Permissions::KICK_MEMBERS)
+            .set_options(options)
+            .contexts(vec![
+                InteractionContext::Guild,
+            ])
+    }
+
+    async fn run(
+        &self,
+        ctx: &Context,
+        command: &CommandInteraction,
+        _database: &PgPool,
+        _emoji: &EmojiConfig,
+    ) -> Result<()> {
+        debug!("{} command called", self.name());
+        let target_id: UserId = command.data.options.iter()
+            .find(|opt| opt.kind() == CommandOptionType::User)
+            .and_then(|opt| opt.value.as_user_id())
+            .ok_or_else(|| anyhow::anyhow!("Aucun utilisateur spécifié"))?;
+        let target: User = command.data.resolved.users.get(&target_id)
+            .ok_or_else(|| anyhow::anyhow!("Utilisateur introuvable"))?
+            .clone();
+        let reason_provided: Option<&str> = command.data.options.iter().find(|opt | opt.kind() == CommandOptionType::String).and_then(|opt| opt.value.as_str());
+        let reason_formatted: String = format_reason(reason_provided, &command.user.name);
+
+        let guild_id: GuildId = command.guild_id.ok_or(anyhow::anyhow!("Kick command executed in DM"))?;
+        let guild: Guild = ctx.cache.guild(guild_id)
+            .ok_or_else(|| anyhow::anyhow!("Guild not found in cache"))?
+            .clone();
+
+        let target_member: Member = guild_id.member(&ctx.http, target_id).await?;
+        let executor_member: Member = guild_id.member(&ctx.http, command.user.id).await?;
+        let bot_id: UserId = ctx.cache.current_user().id;
+        let bot_member: Member = guild_id.member(&ctx.http, bot_id).await?;
+
+        if reason_formatted.len() > 512 {
+            let message: CreateInteractionResponseMessage = CreateInteractionResponseMessage::new()
+                .content(format!("{} | Reason too long (> 512 char)", _emoji.answer.error))
+                .ephemeral(true);
+            let response: CreateInteractionResponse = CreateInteractionResponse::Message(message);
+            command.create_response(&ctx.http, response).await?;
+            return Ok(());
+        }
+        let target_role: &Role = guild.member_highest_role(&target_member).unwrap();
+        let executor_role: &Role = guild.member_highest_role(&executor_member).unwrap();
+        let bot_role: &Role = guild.member_highest_role(&bot_member).unwrap();
+        if target_role > executor_role || target_role > bot_role || target_id == guild.owner_id {
+            let message: CreateInteractionResponseMessage = CreateInteractionResponseMessage::new()
+                .content(format!("{} | You cannot kick this user because they are hierarchically above you", _emoji.answer.error))
+                .ephemeral(true);
+            let response: CreateInteractionResponse = CreateInteractionResponse::Message(message);
+            command.create_response(&ctx.http, response).await?;
+            return Ok(());
+        }
+        guild_id.kick_with_reason(&ctx.http, target.id, &reason_formatted).await?;
+        let message: CreateInteractionResponseMessage = CreateInteractionResponseMessage::new()
+            .content(format!("{} | {} is now kick", _emoji.answer.yes, target.name))
+            .ephemeral(true);
+        let response: CreateInteractionResponse = CreateInteractionResponse::Message(message);
+        command.create_response(&ctx.http, response).await?;
+        Ok(())
+    }
+}
+
+inventory::submit! {
+    CommandEntry { create: || Box::new(Kick) }
+}