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use crate::{
    client::Client,
    error::Error,
    request::{Pending, Request},
    routing::Route,
};
use twilight_model::{
    application::command::Command,
    id::{ApplicationId, GuildId},
};

/// Fetch all commands for a guild, by ID.
pub struct GetGuildCommands<'a> {
    application_id: ApplicationId,
    guild_id: GuildId,
    fut: Option<Pending<'a, Vec<Command>>>,
    http: &'a Client,
}

impl<'a> GetGuildCommands<'a> {
    pub(crate) fn new(http: &'a Client, application_id: ApplicationId, guild_id: GuildId) -> Self {
        Self {
            application_id,
            guild_id,
            fut: None,
            http,
        }
    }

    fn start(&mut self) -> Result<(), Error> {
        let request = Request::from_route(Route::GetGuildCommands {
            application_id: self.application_id.0,
            guild_id: self.guild_id.0,
        });

        self.fut.replace(Box::pin(self.http.request(request)));

        Ok(())
    }
}

poll_req!(GetGuildCommands<'_>, Vec<Command>);