Restructuring, prepare for room, Discord support

src/database.rs

@@ -1,4 +1,4 @@
-use crate::Word;
+use crate::word::Word;
 
 use derive_more::From;
 use std::path::PathBuf;
@@ -15,16 +15,23 @@ pub enum DatabaseCreationError {
     IoError(std::io::Error),
 }
 
+#[derive(Default)]
+pub enum DatabaseType {
+    #[default]
+    InMemory,
+    OnDisk(String),
+}
+
+#[derive(Default)]
+pub struct DatabaseSettings {
+    pub db_type: DatabaseType,
+}
+
 impl Database {
-    pub fn new(
-        testing: bool,
-    ) -> Result<Self, DatabaseCreationError> {
-        let conn = if testing {
-            Connection::open_in_memory()
-        } else {
-            let path = PathBuf::from("shiritori.db");
-            //fs::create_dir_all(path.parent().unwrap())?;
-            Connection::open(path)
+    pub fn new(settings: DatabaseSettings) -> Result<Self, DatabaseCreationError> {
+        let conn = match settings.db_type {
+            DatabaseType::InMemory => Connection::open_in_memory(),
+            DatabaseType::OnDisk(path) => Connection::open(PathBuf::from(path)),
         }?;
         conn.execute(
             "CREATE TABLE IF NOT EXISTS word (