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use crate::request::prelude::*;
use std::{
error::Error,
fmt::{Display, Formatter, Result as FmtResult},
};
use twilight_model::{
channel::Message,
id::{ChannelId, MessageId},
};
#[derive(Clone, Debug)]
#[non_exhaustive]
pub enum GetChannelMessagesConfiguredError {
LimitInvalid {
limit: u64,
},
}
impl Display for GetChannelMessagesConfiguredError {
fn fmt(&self, f: &mut Formatter<'_>) -> FmtResult {
match self {
Self::LimitInvalid { .. } => f.write_str("the limit is invalid"),
}
}
}
impl Error for GetChannelMessagesConfiguredError {}
struct GetChannelMessagesConfiguredFields {
limit: Option<u64>,
}
pub struct GetChannelMessagesConfigured<'a> {
after: Option<MessageId>,
around: Option<MessageId>,
before: Option<MessageId>,
channel_id: ChannelId,
fields: GetChannelMessagesConfiguredFields,
fut: Option<Pending<'a, Vec<Message>>>,
http: &'a Client,
}
impl<'a> GetChannelMessagesConfigured<'a> {
pub(crate) fn new(
http: &'a Client,
channel_id: ChannelId,
after: Option<MessageId>,
around: Option<MessageId>,
before: Option<MessageId>,
limit: Option<u64>,
) -> Self {
Self {
after,
around,
before,
channel_id,
fields: GetChannelMessagesConfiguredFields { limit },
fut: None,
http,
}
}
pub fn limit(mut self, limit: u64) -> Result<Self, GetChannelMessagesConfiguredError> {
if !validate::get_channel_messages_limit(limit) {
return Err(GetChannelMessagesConfiguredError::LimitInvalid { limit });
}
self.fields.limit.replace(limit);
Ok(self)
}
fn start(&mut self) -> Result<()> {
self.fut.replace(Box::pin(self.http.request(Request::from(
Route::GetMessages {
after: self.after.map(|x| x.0),
around: self.around.map(|x| x.0),
before: self.before.map(|x| x.0),
channel_id: self.channel_id.0,
limit: self.fields.limit,
},
))));
Ok(())
}
}
poll_req!(GetChannelMessagesConfigured<'_>, Vec<Message>);