feat: add Dockerfile and implement SQLite persistence layer with repository pattern

Dockerfile

@@ -0,0 +1,29 @@
+FROM rust:1.92 AS builder
+
+WORKDIR /app
+COPY . .
+
+# Build the release binary
+RUN cargo build --release -p api
+
+FROM debian:bookworm-slim
+
+WORKDIR /app
+
+# Install OpenSSL, CA certs, and ffmpeg (provides ffprobe for local-files duration scanning)
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libssl3 \
+    ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
+
+COPY --from=builder /app/target/release/api .
+
+
+# Create data directory for SQLite
+RUN mkdir -p /app/data
+
+ENV DATABASE_URL=sqlite:///app/data/template.db
+
+EXPOSE 8000
+
+CMD ["./api"]

crates/infrastructure/persistence/src/lib.rs

@@ -1,219 +1,5 @@
-use async_trait::async_trait;
+mod row;
-use domain::{
+pub mod repository;
-    RepositoryError, Song, SongMeta, SongRepositoryPort, SongSearchPort, SongSummary, StoredSong,
+mod search;
-    SortField, SortOrder,
-    song_preview_chords,
-};
-use sqlx::SqlitePool;
-use uuid::Uuid;
 
-fn sort_clause(field: SortField, order: SortOrder) -> &'static str {
+pub use repository::{SqliteSongRepository, SqliteRepositoryFactory};
-    match (field, order) {
-        (SortField::Title,  SortOrder::Asc)  => "ORDER BY title ASC",
-        (SortField::Title,  SortOrder::Desc) => "ORDER BY title DESC",
-        (SortField::Artist, SortOrder::Asc)  => "ORDER BY artist ASC",
-        (SortField::Artist, SortOrder::Desc) => "ORDER BY artist DESC",
-        (SortField::Date,   SortOrder::Asc)  => "ORDER BY created_at ASC",
-        (SortField::Date,   SortOrder::Desc) => "ORDER BY created_at DESC",
-    }
-}
-
-#[derive(Clone)]
-pub struct SqliteSongRepository {
-    pool: SqlitePool,
-}
-
-impl SqliteSongRepository {
-    pub async fn new(database_url: &str) -> Result<Self, sqlx::Error> {
-        let pool = SqlitePool::connect(database_url).await?;
-        sqlx::migrate!("./migrations").run(&pool).await?;
-        Ok(Self { pool })
-    }
-}
-
-#[derive(sqlx::FromRow)]
-struct SongRow {
-    id: String,
-    title: String,
-    artist: String,
-    original_key: Option<String>,
-    preview_chords: String,
-    body: String,
-}
-
-#[async_trait]
-impl SongRepositoryPort for SqliteSongRepository {
-    async fn save(&self, song: &Song) -> Result<StoredSong, RepositoryError> {
-        let id = Uuid::new_v4();
-        let id_str = id.to_string();
-        let body = serde_json::to_string(song)
-            .map_err(|e| RepositoryError::Internal(e.to_string()))?;
-        let preview = song_preview_chords(song);
-        let preview_json = serde_json::to_string(&preview)
-            .map_err(|e| RepositoryError::Internal(e.to_string()))?;
-        let original_key = song.meta.original_key.as_deref();
-
-        sqlx::query(
-            "INSERT INTO songs (id, title, artist, original_key, preview_chords, body) VALUES (?, ?, ?, ?, ?, ?)"
-        )
-        .bind(&id_str)
-        .bind(&song.meta.title)
-        .bind(&song.meta.artist)
-        .bind(original_key)
-        .bind(&preview_json)
-        .bind(&body)
-        .execute(&self.pool)
-        .await
-        .map_err(|e| RepositoryError::Internal(e.to_string()))?;
-
-        Ok(StoredSong { id, song: song.clone() })
-    }
-
-    async fn list(&self, sort: SortField, order: SortOrder) -> Result<Vec<SongSummary>, RepositoryError> {
-        let sql = format!(
-            "SELECT id, title, artist, original_key, preview_chords, body FROM songs {}",
-            sort_clause(sort, order)
-        );
-        let rows = sqlx::query_as::<_, SongRow>(&sql)
-            .fetch_all(&self.pool)
-            .await
-            .map_err(|e| RepositoryError::Internal(e.to_string()))?;
-
-        rows.into_iter().map(row_to_summary).collect()
-    }
-
-    async fn get(&self, id: Uuid) -> Result<Option<Song>, RepositoryError> {
-        let id_str = id.to_string();
-        let row = sqlx::query_as::<_, SongRow>(
-            "SELECT id, title, artist, original_key, preview_chords, body FROM songs WHERE id = ?"
-        )
-        .bind(&id_str)
-        .fetch_optional(&self.pool)
-        .await
-        .map_err(|e| RepositoryError::Internal(e.to_string()))?;
-
-        match row {
-            None => Ok(None),
-            Some(r) => {
-                let song: Song = serde_json::from_str(&r.body)
-                    .map_err(|e| RepositoryError::Internal(e.to_string()))?;
-                Ok(Some(song))
-            }
-        }
-    }
-
-    async fn delete(&self, id: Uuid) -> Result<(), RepositoryError> {
-        let id_str = id.to_string();
-        let result = sqlx::query("DELETE FROM songs WHERE id = ?")
-            .bind(&id_str)
-            .execute(&self.pool)
-            .await
-            .map_err(|e| RepositoryError::Internal(e.to_string()))?;
-
-        if result.rows_affected() == 0 {
-            Err(RepositoryError::NotFound)
-        } else {
-            Ok(())
-        }
-    }
-
-    async fn update_meta(
-        &self,
-        id: Uuid,
-        title: Option<&str>,
-        artist: Option<&str>,
-        original_key: Option<&str>,
-    ) -> Result<SongSummary, RepositoryError> {
-        let id_str = id.to_string();
-
-        let row = sqlx::query_as::<_, SongRow>(
-            "SELECT id, title, artist, original_key, preview_chords, body FROM songs WHERE id = ?"
-        )
-        .bind(&id_str)
-        .fetch_optional(&self.pool)
-        .await
-        .map_err(|e| RepositoryError::Internal(e.to_string()))?
-        .ok_or(RepositoryError::NotFound)?;
-
-        let mut song: Song = serde_json::from_str(&row.body)
-            .map_err(|e| RepositoryError::Internal(e.to_string()))?;
-        if let Some(t) = title { song.meta.title = t.to_string(); }
-        if let Some(a) = artist { song.meta.artist = a.to_string(); }
-        if let Some(k) = original_key { song.meta.original_key = Some(k.to_string()); }
-        let new_body = serde_json::to_string(&song)
-            .map_err(|e| RepositoryError::Internal(e.to_string()))?;
-
-        let new_title = title.unwrap_or(&row.title);
-        let new_artist = artist.unwrap_or(&row.artist);
-        let new_key: Option<&str> = original_key.or(row.original_key.as_deref());
-
-        sqlx::query(
-            "UPDATE songs SET title = ?, artist = ?, original_key = ?, body = ? WHERE id = ?"
-        )
-        .bind(new_title)
-        .bind(new_artist)
-        .bind(new_key)
-        .bind(&new_body)
-        .bind(&id_str)
-        .execute(&self.pool)
-        .await
-        .map_err(|e| RepositoryError::Internal(e.to_string()))?;
-
-        let preview_chords: Vec<String> = serde_json::from_str(&row.preview_chords)
-            .map_err(|e| RepositoryError::Internal(e.to_string()))?;
-
-        Ok(SongSummary {
-            id,
-            meta: song.meta,
-            preview_chords,
-        })
-    }
-}
-
-#[async_trait]
-impl SongSearchPort for SqliteSongRepository {
-    async fn search(&self, query: &str, sort: SortField, order: SortOrder) -> Result<Vec<SongSummary>, RepositoryError> {
-        let escaped = query.replace('\\', "\\\\").replace('%', "\\%").replace('_', "\\_");
-        let pattern = format!("%{}%", escaped);
-        let sql = format!(
-            "SELECT id, title, artist, original_key, preview_chords, body FROM songs \
-             WHERE (title LIKE ? ESCAPE '\\' OR artist LIKE ? ESCAPE '\\') {}",
-            sort_clause(sort, order)
-        );
-        let rows = sqlx::query_as::<_, SongRow>(&sql)
-            .bind(&pattern)
-            .bind(&pattern)
-            .fetch_all(&self.pool)
-            .await
-            .map_err(|e| RepositoryError::Internal(e.to_string()))?;
-
-        rows.into_iter().map(row_to_summary).collect()
-    }
-}
-
-fn row_to_summary(row: SongRow) -> Result<SongSummary, RepositoryError> {
-    let id = Uuid::parse_str(&row.id)
-        .map_err(|e| RepositoryError::Internal(e.to_string()))?;
-    let preview_chords: Vec<String> = serde_json::from_str(&row.preview_chords)
-        .map_err(|e| RepositoryError::Internal(e.to_string()))?;
-    Ok(SongSummary {
-        id,
-        meta: SongMeta {
-            title: row.title,
-            artist: row.artist,
-            original_key: row.original_key,
-            capo: None,
-            tuning: None,
-            tempo: None,
-        },
-        preview_chords,
-    })
-}
-
-pub struct SqliteRepositoryFactory;
-
-impl SqliteRepositoryFactory {
-    pub async fn create(database_url: &str) -> Result<SqliteSongRepository, sqlx::Error> {
-        SqliteSongRepository::new(database_url).await
-    }
-}

crates/infrastructure/persistence/src/repository.rs

@@ -0,0 +1,159 @@
+use async_trait::async_trait;
+use domain::{
+    RepositoryError, Song, SongRepositoryPort, SongSummary, StoredSong,
+    SortField, SortOrder, song_preview_chords,
+};
+use sqlx::SqlitePool;
+use uuid::Uuid;
+
+use crate::row::{SongRow, sort_clause, row_to_summary};
+
+#[derive(Clone)]
+pub struct SqliteSongRepository {
+    pub(crate) pool: SqlitePool,
+}
+
+impl SqliteSongRepository {
+    pub async fn new(database_url: &str) -> Result<Self, sqlx::Error> {
+        let pool = SqlitePool::connect(database_url).await?;
+        sqlx::migrate!("./migrations").run(&pool).await?;
+        Ok(Self { pool })
+    }
+}
+
+#[async_trait]
+impl SongRepositoryPort for SqliteSongRepository {
+    async fn save(&self, song: &Song) -> Result<StoredSong, RepositoryError> {
+        let id = Uuid::new_v4();
+        let id_str = id.to_string();
+        let body = serde_json::to_string(song)
+            .map_err(|e| RepositoryError::Internal(e.to_string()))?;
+        let preview = song_preview_chords(song);
+        let preview_json = serde_json::to_string(&preview)
+            .map_err(|e| RepositoryError::Internal(e.to_string()))?;
+        let original_key = song.meta.original_key.as_deref();
+
+        sqlx::query(
+            "INSERT INTO songs (id, title, artist, original_key, preview_chords, body) VALUES (?, ?, ?, ?, ?, ?)"
+        )
+        .bind(&id_str)
+        .bind(&song.meta.title)
+        .bind(&song.meta.artist)
+        .bind(original_key)
+        .bind(&preview_json)
+        .bind(&body)
+        .execute(&self.pool)
+        .await
+        .map_err(|e| RepositoryError::Internal(e.to_string()))?;
+
+        Ok(StoredSong { id, song: song.clone() })
+    }
+
+    async fn list(&self, sort: SortField, order: SortOrder) -> Result<Vec<SongSummary>, RepositoryError> {
+        let sql = format!(
+            "SELECT id, title, artist, original_key, preview_chords, body FROM songs {}",
+            sort_clause(sort, order)
+        );
+        let rows = sqlx::query_as::<_, SongRow>(&sql)
+            .fetch_all(&self.pool)
+            .await
+            .map_err(|e| RepositoryError::Internal(e.to_string()))?;
+
+        rows.into_iter().map(row_to_summary).collect()
+    }
+
+    async fn get(&self, id: Uuid) -> Result<Option<Song>, RepositoryError> {
+        let id_str = id.to_string();
+        let row = sqlx::query_as::<_, SongRow>(
+            "SELECT id, title, artist, original_key, preview_chords, body FROM songs WHERE id = ?"
+        )
+        .bind(&id_str)
+        .fetch_optional(&self.pool)
+        .await
+        .map_err(|e| RepositoryError::Internal(e.to_string()))?;
+
+        match row {
+            None => Ok(None),
+            Some(r) => {
+                let song: Song = serde_json::from_str(&r.body)
+                    .map_err(|e| RepositoryError::Internal(e.to_string()))?;
+                Ok(Some(song))
+            }
+        }
+    }
+
+    async fn delete(&self, id: Uuid) -> Result<(), RepositoryError> {
+        let id_str = id.to_string();
+        let result = sqlx::query("DELETE FROM songs WHERE id = ?")
+            .bind(&id_str)
+            .execute(&self.pool)
+            .await
+            .map_err(|e| RepositoryError::Internal(e.to_string()))?;
+
+        if result.rows_affected() == 0 {
+            Err(RepositoryError::NotFound)
+        } else {
+            Ok(())
+        }
+    }
+
+    async fn update_meta(
+        &self,
+        id: Uuid,
+        title: Option<&str>,
+        artist: Option<&str>,
+        original_key: Option<&str>,
+    ) -> Result<SongSummary, RepositoryError> {
+        let id_str = id.to_string();
+
+        let row = sqlx::query_as::<_, SongRow>(
+            "SELECT id, title, artist, original_key, preview_chords, body FROM songs WHERE id = ?"
+        )
+        .bind(&id_str)
+        .fetch_optional(&self.pool)
+        .await
+        .map_err(|e| RepositoryError::Internal(e.to_string()))?
+        .ok_or(RepositoryError::NotFound)?;
+
+        let mut song: Song = serde_json::from_str(&row.body)
+            .map_err(|e| RepositoryError::Internal(e.to_string()))?;
+        if let Some(t) = title { song.meta.title = t.to_string(); }
+        if let Some(a) = artist { song.meta.artist = a.to_string(); }
+        if let Some(k) = original_key { song.meta.original_key = Some(k.to_string()); }
+        let new_body = serde_json::to_string(&song)
+            .map_err(|e| RepositoryError::Internal(e.to_string()))?;
+
+        let new_title = title.unwrap_or(&row.title);
+        let new_artist = artist.unwrap_or(&row.artist);
+        let new_key: Option<&str> = original_key.or(row.original_key.as_deref());
+
+        sqlx::query(
+            "UPDATE songs SET title = ?, artist = ?, original_key = ?, body = ? WHERE id = ?"
+        )
+        .bind(new_title)
+        .bind(new_artist)
+        .bind(new_key)
+        .bind(&new_body)
+        .bind(&id_str)
+        .execute(&self.pool)
+        .await
+        .map_err(|e| RepositoryError::Internal(e.to_string()))?;
+
+        let preview_chords: Vec<String> = serde_json::from_str(&row.preview_chords)
+            .map_err(|e| RepositoryError::Internal(e.to_string()))?;
+
+        Ok(SongSummary {
+            id,
+            meta: song.meta,
+            preview_chords,
+        })
+    }
+}
+
+pub struct SqliteRepositoryFactory;
+
+impl SqliteRepositoryFactory {
+    pub async fn create(database_url: &str) -> Result<SqliteSongRepository, sqlx::Error> {
+        SqliteSongRepository::new(database_url).await
+    }
+}

crates/infrastructure/persistence/src/row.rs

@@ -0,0 +1,42 @@
+use domain::{RepositoryError, SongMeta, SongSummary, SortField, SortOrder};
+use uuid::Uuid;
+
+#[derive(sqlx::FromRow)]
+pub(crate) struct SongRow {
+    pub(crate) id: String,
+    pub(crate) title: String,
+    pub(crate) artist: String,
+    pub(crate) original_key: Option<String>,
+    pub(crate) preview_chords: String,
+    pub(crate) body: String,
+}
+
+pub(crate) fn sort_clause(field: SortField, order: SortOrder) -> &'static str {
+    match (field, order) {
+        (SortField::Title,  SortOrder::Asc)  => "ORDER BY title ASC",
+        (SortField::Title,  SortOrder::Desc) => "ORDER BY title DESC",
+        (SortField::Artist, SortOrder::Asc)  => "ORDER BY artist ASC",
+        (SortField::Artist, SortOrder::Desc) => "ORDER BY artist DESC",
+        (SortField::Date,   SortOrder::Asc)  => "ORDER BY created_at ASC",
+        (SortField::Date,   SortOrder::Desc) => "ORDER BY created_at DESC",
+    }
+}
+
+pub(crate) fn row_to_summary(row: SongRow) -> Result<SongSummary, RepositoryError> {
+    let id = Uuid::parse_str(&row.id)
+        .map_err(|e| RepositoryError::Internal(e.to_string()))?;
+    let preview_chords: Vec<String> = serde_json::from_str(&row.preview_chords)
+        .map_err(|e| RepositoryError::Internal(e.to_string()))?;
+    Ok(SongSummary {
+        id,
+        meta: SongMeta {
+            title: row.title,
+            artist: row.artist,
+            original_key: row.original_key,
+            capo: None,
+            tuning: None,
+            tempo: None,
+        },
+        preview_chords,
+    })
+}

crates/infrastructure/persistence/src/search.rs

@@ -0,0 +1,26 @@
+use async_trait::async_trait;
+use domain::{RepositoryError, SongSearchPort, SongSummary, SortField, SortOrder};
+
+use crate::repository::SqliteSongRepository;
+use crate::row::{SongRow, sort_clause, row_to_summary};
+
+#[async_trait]
+impl SongSearchPort for SqliteSongRepository {
+    async fn search(&self, query: &str, sort: SortField, order: SortOrder) -> Result<Vec<SongSummary>, RepositoryError> {
+        let escaped = query.replace('\\', "\\\\").replace('%', "\\%").replace('_', "\\_");
+        let pattern = format!("%{}%", escaped);
+        let sql = format!(
+            "SELECT id, title, artist, original_key, preview_chords, body FROM songs \
+             WHERE (title LIKE ? ESCAPE '\\' OR artist LIKE ? ESCAPE '\\') {}",
+            sort_clause(sort, order)
+        );
+        let rows = sqlx::query_as::<_, SongRow>(&sql)
+            .bind(&pattern)
+            .bind(&pattern)
+            .fetch_all(&self.pool)
+            .await
+            .map_err(|e| RepositoryError::Internal(e.to_string()))?;
+
+        rows.into_iter().map(row_to_summary).collect()
+    }
+}