forked from jmug/stoatchat
chore: migrate authifier into codebase (#658)
Co-authored-by: izzy <me@insrt.uk> Signed-off-by: Zomatree <me@zomatree.live> Signed-off-by: izzy <me@insrt.uk>
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@@ -0,0 +1,63 @@
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#[cfg(feature = "mongodb")]
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use ::mongodb::{ClientSession, SessionCursor};
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use revolt_result::{Result, ToRevoltError};
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use serde::Deserialize;
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#[derive(Debug)]
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#[allow(clippy::large_enum_variant)]
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pub enum ChunkedDatabaseGenerator<T> {
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#[cfg(feature = "mongodb")]
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MongoDb {
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session: ClientSession,
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cursor: SessionCursor<T>,
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},
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Reference {
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offset: usize,
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data: Vec<T>,
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},
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}
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impl<T: for<'d> Deserialize<'d> + Clone> ChunkedDatabaseGenerator<T> {
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#[cfg(feature = "mongodb")]
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pub fn new_mongo(session: ClientSession, cursor: SessionCursor<T>) -> Self {
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Self::MongoDb { session, cursor }
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}
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pub fn new_reference(data: Vec<T>) -> Self {
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Self::Reference { offset: 0, data }
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}
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pub async fn next(&mut self) -> Result<Option<T>> {
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match self {
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#[cfg(feature = "mongodb")]
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Self::MongoDb { session, cursor } => {
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cursor.next(session).await.transpose().to_internal_error()
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}
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Self::Reference { offset, data } => {
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if let Some(value) = data.get(*offset) {
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*offset += 1;
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Ok(Some(value.clone()))
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} else {
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Ok(None)
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}
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}
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}
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}
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pub async fn next_n(&mut self, n: usize) -> Result<Option<Vec<T>>> {
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let mut docs = Vec::new();
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while docs.len() < n {
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if let Some(doc) = self.next().await? {
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docs.push(doc);
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} else if docs.is_empty() {
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return Ok(None);
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} else {
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break;
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}
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}
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Ok(Some(docs))
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}
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}
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