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io_gmail/v1/rest/labels/
update.rs

1//! Update a Gmail label (`users.labels.update`).
2//!
3//! <https://developers.google.com/gmail/api/reference/rest/v1/users.labels/update>
4
5use alloc::format;
6
7use io_http::rfc6750::bearer::HttpAuthBearer;
8use log::{debug, trace};
9use url::Url;
10
11use crate::{
12    coroutine::*,
13    gmail_try,
14    v1::{
15        rest::labels::GmailLabel,
16        send::{GMAIL_API_BASE, GmailSend, GmailSendError, GmailSendOutput},
17    },
18};
19
20/// I/O-free coroutine updating a Gmail label (`users.labels.update`).
21pub struct GmailLabelUpdate {
22    send: GmailSend<GmailLabel>,
23}
24
25impl GmailLabelUpdate {
26    /// Builds the `users.labels.update` request from the given label,
27    /// whose id selects the label to update.
28    pub fn new(
29        auth: &HttpAuthBearer,
30        user_id: &str,
31        label: &GmailLabel,
32    ) -> Result<Self, GmailSendError> {
33        debug!("prepare gmail label update");
34        trace!("label: {label:?}");
35
36        if label.name.trim().is_empty() {
37            let err = GmailSendError::InvalidRequest("Label name cannot be empty".into());
38            return Err(err);
39        }
40
41        let id = &label.id;
42        let url = Url::parse(GMAIL_API_BASE)?.join(&format!("users/{user_id}/labels/{id}"))?;
43        let send = GmailSend::put_json(auth, url, label)?;
44
45        Ok(Self { send })
46    }
47}
48
49impl GmailCoroutine for GmailLabelUpdate {
50    type Yield = GmailYield;
51    type Return = Result<GmailSendOutput<GmailLabel>, GmailSendError>;
52
53    fn resume(&mut self, arg: Option<&[u8]>) -> GmailCoroutineState<Self::Yield, Self::Return> {
54        let out = gmail_try!(&mut self.send, arg);
55        debug!("label updated");
56        trace!("out: {out:?}");
57        GmailCoroutineState::Complete(Ok(out))
58    }
59}