RUST: Add a way to add things in the queue from the database connexion + fix...

RUST: Add a way to add things in the queue from the database connexion + fix the default insert function

src/rust/liblektor-rs/src/database/connexion.rs

-use super::*;
-
+use super::{
+    queue::{LktDatabasePriority, LktDatabaseQueueRangeIter},
+    *,
+};
 use crate::{database::models::*, kurisu_api::v1 as api_v1};
 use diesel_migrations::{embed_migrations, EmbeddedMigrations, MigrationHarness};
 
@@ -161,4 +163,39 @@ impl LktDatabaseConnection {
         };
         Ok((id, kara, lang, kara_makers, tags))
     }
+
+    /// Peek the next kara to play
+    pub fn peek_next_kara_in_queue(&self) -> Option<u64> {
+        self.queue.peek_next()
+    }
+
+    /// Pop the next kara to play
+    pub fn pop_next_kara_in_queue(&mut self) -> Option<u64> {
+        self.queue.pop_next()
+    }
+
+    /// Get the content of the queue from a range.
+    pub fn get_queue_content(&self, range: Range<usize>) -> LktDatabaseQueueRangeIter {
+        self.queue.range(range)
+    }
+
+    /// Add a kara at the end of the queue.
+    pub fn enqueue_kara(&mut self, local_id: u64) {
+        self.queue.enqueue_kara(local_id)
+    }
+
+    /// Add a kara at the end of a priority in the queue.
+    pub fn enqueue_kara_with_priority(&mut self, local_id: u64, priority: LktDatabasePriority) {
+        self.queue.enqueue_kara_with_priority(local_id, priority)
+    }
+
+    /// Add a kara at the top of the queue.
+    pub fn insert_kara(&mut self, local_id: u64) {
+        self.queue.insert_kara(local_id)
+    }
+
+    /// Add a kara at the top of a priority in the queue.
+    pub fn insert_kara_with_priority(&mut self, local_id: u64, priority: LktDatabasePriority) {
+        self.queue.insert_kara_with_priority(local_id, priority)
+    }
 }

src/rust/liblektor-rs/src/database/mod.rs

@@ -10,7 +10,12 @@ pub mod unsafe_interface;
 pub(self) use diesel::prelude::*;
 pub(self) use error::*;
 pub(self) use log::*;
-pub(self) use std::path::Path;
+pub(self) use std::{
+    collections::VecDeque,
+    ops::{Index, Range},
+    path::Path,
+    slice::SliceIndex,
+};
 
 /// All the information needed to add a kara recieved from a repo!
 pub type NewKaraRequest<'a> = (

src/rust/liblektor-rs/src/database/queue.rs

-use std::{
-    collections::VecDeque,
-    ops::{Index, Range},
-    slice::SliceIndex,
-};
+use super::*;
 
 /// The number of priority levels in the queues. The higher the number, the
 /// higher the priority.
@@ -99,7 +95,7 @@ impl LktDatabaseQueue {
     }
 
     pub fn insert_kara(&mut self, local_id: u64) {
-        self.levels[0].push_front(local_id);
+        self.levels[LKT_DATABASE_QUEUES_COUNT - 1].push_front(local_id);
     }
 
     pub fn insert_kara_with_priority(&mut self, local_id: u64, priority: LktDatabasePriority) {