code refractor

prisma/schema.prisma

@@ -9,12 +9,37 @@ generator client {
 }
 
 datasource db {
-  provider = "sqlite"
-  url      = "file:./dev.db"
+  provider = "mysql"
+  url      = env("DATABASE_URL")
 }
 
 model User {
   id       Int     @id @default(autoincrement())
   username String  @unique
   password String
+  position_x Int?
+  position_y Int?
+  rotation Int?
+  mapId    Int?    @unique
+  map      Map?    @relation(fields: [mapId], references: [id])
+  chatlogs Chatlogs[]
+}
+
+model Map {
+  id          Int     @id @default(autoincrement())
+  name        String
+  width       Int
+  height      Int
+  tiles       Json
+  users       User[]  // One-to-many relation: A map can have multiple users
+  chatlogs    Chatlogs[]
+}
+
+model Chatlogs {
+  id       Int     @id @default(autoincrement())
+  userId Int
+  message  String
+  mapId    Int
+  map      Map     @relation(fields: [mapId], references: [id])
+  user     User    @relation(fields: [userId], references: [id])
 }