Create library item repository.

backend/infrastructure/src/video/adapter.rs

@@ -10,9 +10,7 @@ use lumiere_domain::video::model::video::VideoFormat::{AVI, MKV, MP4, WEBM};
 use crate::video::video_format_detector::get_content_type;
 
 #[derive(Clone)]
-pub struct VideoAdapter {
-
-}
+pub struct VideoAdapter {}
 
 impl VideoAdapter {
     pub fn new() -> Self {

backend/infrastructure/src/video/mod.rs

@@ -1,3 +1,4 @@
 pub mod adapter;
 pub mod model;
 pub mod video_format_detector;
+mod repository;

backend/infrastructure/src/video/model.rs

@@ -1,4 +1,7 @@
 use std::fs::File;
+use std::io::{Error, ErrorKind};
+use uuid::Uuid;
+use lumiere_domain::video::model::library_item::{LibraryItem, LibraryItemType};
 
 pub struct TokioVideoFile {
     pub file: File
@@ -11,3 +14,39 @@ impl TokioVideoFile {
         }
     }
 }
+
+
+pub struct LibraryItemEntity {
+    pub id: Uuid,
+    pub name: String,
+    pub r#type: i8,
+    pub parent_folder_id: Option<Uuid>
+}
+
+impl LibraryItemEntity {
+    pub fn from_library_item(library_item: &LibraryItem) -> Result<Self, Error> {
+        Ok(
+            Self {
+                id: library_item.id.clone(),
+                name: library_item.name.clone(),
+                r#type: Self::map_type_to_i8(library_item.r#type)?,
+                parent_folder_id: None
+            }
+        )
+    }
+
+    fn map_type_to_i8(item_type: LibraryItemType) -> Result<i8, Error> {
+        match item_type {
+            LibraryItemType::VIDEO => Ok(0),
+            LibraryItemType::FOLDER => Ok(1)
+        }
+    }
+
+    fn map_type_from_i8(item_type_number: i8) -> Result<LibraryItemType, Error> {
+        match item_type_number {
+            0 => Ok(LibraryItemType::VIDEO),
+            1 => Ok(LibraryItemType::FOLDER),
+            unknown_value => Err(Error::new(ErrorKind::InvalidData, format!("Unknown library item type value from database: {unknown_value}")))
+        }
+    }
+}

backend/infrastructure/src/video/repository.rs

@@ -0,0 +1,65 @@
+use std::sync::{Arc, Mutex, MutexGuard};
+use rusqlite::{Connection, Error, Row};
+use rusqlite::fallible_iterator::FallibleIterator;
+use uuid::Uuid;
+use lumiere_domain::video::model::library_item::{LibraryItem, LibraryItemType};
+use crate::video::model::LibraryItemEntity;
+
+#[derive(Clone)]
+pub struct LibraryItemSqliteRepository {
+    pub database_connection: Arc<Mutex<Connection>>,
+}
+
+impl LibraryItemSqliteRepository {
+    pub fn new(database_connection: Arc<Mutex<Connection>>) -> Self {
+        Self {
+            database_connection,
+        }
+    }
+
+    fn get_connection(&self) -> MutexGuard<'_, Connection> {
+        self.database_connection.lock().unwrap()
+    }
+
+    pub fn create_table(&self) -> Result<(), rusqlite::Error> {
+        let connection = self.get_connection();
+        connection.execute(
+            "CREATE TABLE IF NOT EXISTS library_item (
+                    id TEXT PRIMARY KEY,
+                    name VARCHAR NOT NULL,
+                    type INTEGER NOT NULL,
+                    parent_folder_id TEXT NULL FOREIGN KEY REFERENCES library_item (id)
+                );",
+            []
+        )?;
+        Ok(())
+    }
+
+    pub fn get_all_of_root_folder(&self) -> Result<Vec<LibraryItem>, Error> {
+        let database_connection = self.get_connection();
+
+        let mut prepared_statement = database_connection.prepare(
+            "SELECT
+                id,
+                name,
+                type
+            FROM library_item
+            WHERE parent_folder_id IS NULL",
+        )?;
+        let rows = prepared_statement.query([])?;
+        rows.map(Self::map_to_library_item).collect::<Vec<LibraryItem>>()
+    }
+
+    fn map_to_library_item(row: &Row) -> Result<LibraryItemEntity, Error> {
+        let id_text: String = row.get(0)?;
+        let type_as_number: i8 = row.get(2)?;
+        Ok(
+            LibraryItemEntity {
+                id: Uuid::parse_str(&id_text).unwrap(),
+                name: row.get(1)?,
+                r#type: type_as_number,
+                parent_folder_id: None
+            }
+        )
+    }
+}