119 lines
3.5 KiB
Rust
119 lines
3.5 KiB
Rust
use reqwest::Response;
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use uuid::Uuid;
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use crate::http::RequestError;
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use crate::notification::{GroupedProgressChild, NotificationService};
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#[derive(Clone, Default)]
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pub struct ResponseOptions {
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pub notify: Option<ResponseNotifyOptions>,
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}
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#[derive(Clone)]
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pub struct ResponseNotifyOptions {
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child: Option<GroupedProgressChild>,
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standalone_label: Option<String>,
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standalone_id: Option<Uuid>,
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done_label: Option<String>,
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}
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impl ResponseNotifyOptions {
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pub fn grouped(child: GroupedProgressChild) -> Self {
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Self {
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child: Some(child),
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standalone_label: None,
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standalone_id: None,
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done_label: None,
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}
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}
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pub fn standalone(label: impl Into<String>) -> Self {
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Self {
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child: None,
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standalone_label: Some(label.into()),
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standalone_id: None,
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done_label: None,
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}
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}
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pub fn with_id(mut self, id: Uuid) -> Self {
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self.standalone_id = Some(id);
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self
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}
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pub fn done_label(mut self, label: impl Into<String>) -> Self {
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self.done_label = Some(label.into());
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self
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}
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}
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#[async_trait::async_trait]
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pub trait ResponseExt {
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async fn stream(
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self,
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options: ResponseOptions,
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notifier: &NotificationService,
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) -> Result<impl futures_lite::Stream<Item = Result<bytes::Bytes, RequestError>>, RequestError>;
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}
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#[async_trait::async_trait]
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impl ResponseExt for Response {
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async fn stream(
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self,
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options: ResponseOptions,
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notifier: &NotificationService,
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) -> Result<impl futures_lite::Stream<Item = Result<bytes::Bytes, RequestError>>, RequestError>
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{
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let total = self.content_length().unwrap_or(0).max(1);
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let mut current = 0u64;
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let grouped_child = options
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.notify
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.as_ref()
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.and_then(|n| n.child.clone());
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let standalone_label = options
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.notify
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.as_ref()
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.and_then(|n| n.standalone_label.clone());
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let done_label = options
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.notify
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.as_ref()
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.and_then(|n| n.done_label.clone());
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let standalone_id = standalone_label
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.as_ref()
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.map(|_| options.notify.as_ref().and_then(|n| n.standalone_id).unwrap_or_else(Uuid::new_v4));
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if let Some(ref child) = grouped_child {
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child.set_progress(0, Some(total));
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} else if let (Some(id), Some(label)) = (&standalone_id, &standalone_label) {
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notifier.send_progress(id, label, 0, total);
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}
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let notifier = notifier.clone();
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let stream = futures_lite::StreamExt::map(self.bytes_stream(), move |item| {
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match item {
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Ok(chunk) => {
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current += chunk.len() as u64;
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if let Some(ref child) = grouped_child {
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child.set_progress(current, Some(total));
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} else if let (Some(id), Some(label)) = (&standalone_id, &standalone_label) {
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let done = current >= total;
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let label = if done {
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done_label.as_deref().unwrap_or(label)
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} else {
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label
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};
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notifier.send_progress(id, label, current, total);
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}
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Ok(chunk)
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}
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Err(err) => Err(RequestError::from(err)),
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}
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});
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Ok(stream)
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}
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}
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