consume core in Tauri

src-core/src/api.rs

@@ -0,0 +1,6 @@
+use crate::{error::CJDicError, service::AppService};
+
+pub fn list_entries_json(service: &AppService) -> Result<String, CJDicError> {
+    let entries = service.list_entries()?;
+    Ok(serde_json::to_string(&entries)?)
+}

src-core/src/db.rs

@@ -0,0 +1,63 @@
+use std::{path::Path, sync::Mutex};
+
+use rusqlite::{Connection, Result};
+
+use crate::models::Entry;
+
+pub struct Database {
+    conn: Mutex<Connection>,
+}
+
+impl Database {
+    pub fn new<P: AsRef<Path>>(path: P) -> Result<Self> {
+        let conn = Connection::open(path)?;
+        Ok(Self {
+            conn: Mutex::new(conn),
+        })
+    }
+
+    pub fn init(&self) -> Result<()> {
+        let conn = self.conn.lock().unwrap();
+
+        conn.execute_batch(
+            "
+            CREATE TABLE IF NOT EXISTS entries (
+                id          INTEGER PRIMARY KEY,
+                word        TEXT NOT NULL,
+                definition  TEXT NOT NULL
+            )",
+        )?;
+        Ok(())
+    }
+
+    pub fn insert_entry(&self, word: &str, definition: &str) -> Result<()> {
+        let conn = self.conn.lock().unwrap();
+
+        conn.execute(
+            "INSERT INTO entries (word, definition) VALUES (?, ?)",
+            [word, definition],
+        )?;
+        Ok(())
+    }
+
+    pub fn fetch_all_entries(&self) -> Result<Vec<Entry>> {
+        let conn = self.conn.lock().unwrap();
+
+        let mut stmt = conn.prepare("SELECT id, word, definition FROM entries")?;
+
+        let rows = stmt.query_map([], |row| {
+            Ok(Entry {
+                id: row.get(0)?,
+                word: row.get(1)?,
+                definition: row.get(2)?,
+            })
+        })?;
+
+        let mut entries = Vec::new();
+        for entry in rows {
+            entries.push(entry?);
+        }
+
+        Ok(entries)
+    }
+}

src-core/src/error.rs

@@ -0,0 +1,13 @@
+use thiserror::Error;
+
+#[derive(Debug, Error)]
+pub enum CJDicError {
+    #[error("Database error: {0}")]
+    Database(#[from] rusqlite::Error),
+
+    #[error("Serialization error: {0}")]
+    Serialization(#[from] serde_json::Error),
+
+    #[error("Not found")]
+    NotFound,
+}

src-core/src/lib.rs

@@ -1,4 +1,12 @@
+pub mod api;
+pub mod db;
+pub mod error;
 pub mod models;
+pub mod service;
+
+pub use error::CJDicError;
+pub use models::*;
+pub use service::AppService;
 
 pub fn add(left: u64, right: u64) -> u64 {
     left + right

src-core/src/service.rs

@@ -0,0 +1,24 @@
+use std::path::Path;
+
+use crate::{db::Database, error::CJDicError, models::Entry};
+
+pub struct AppService {
+    db: Database,
+}
+
+impl AppService {
+    pub fn new<P: AsRef<Path>>(db_path: P) -> Result<Self, CJDicError> {
+        let db = Database::new(db_path)?;
+        db.init()?;
+        Ok(Self { db })
+    }
+
+    pub fn add_entry(&self, word: &str, definition: &str) -> Result<(), CJDicError> {
+        self.db.insert_entry(word, definition)?;
+        Ok(())
+    }
+
+    pub fn list_entries(&self) -> Result<Vec<Entry>, CJDicError> {
+        Ok(self.db.fetch_all_entries()?)
+    }
+}