feat: createAdapter and createTable (#6)

* refactor: restructure getTables function to be part of createAdapter options

* refactor: simplify adapter creation and enhance type definitions

* refactor: remove commented-out code for clarity

* refactor: enhance adapter and table creation with improved type definitions

* fix: type

* refactor: enhance type definitions in createAdapter and AdapterOptions for better type safety

* refactor: improve type definitions and simplify adapter creation for enhanced type safety

* refactor: update drizzleAdapter calls to correctly pass getAuthTables as a separate argument

* refactor: remove getAuthTables argument from kyselyAdapter calls for cleaner interface

* refactor: simplify adapter function signatures by removing unnecessary model type parameters

* refactor: enhance type safety in adapter interfaces and configurations

* refactor: streamline adapter creation logic in createAdapter function

* refactor: remove getAuthTables argument from mongodbAdapter instantiation for cleaner code

* refactor: remove unused type imports from adapter files for cleaner code

* refactor: cast options and db to any for improved type handling in adapter functions

* refactor: replace UnDbSchema with TablesSchema for improved type consistency across adapters and utilities

* chore: up

* chore: update tsdown to version 0.9.0 and adjust tsdown.config for improved build settings

* refactor: enhance adapter usage with custom schema and plugin support in README

* docs: update README to enhance structure, add features, and improve clarity

Author: productdevbook

README.md

@@ -108,14 +108,15 @@
     "bumpp": "^10.1.0",
     "deepmerge": "^4.3.1",
     "drizzle-orm": "^0.42.0",
-    "eslint": "^9.24.0",
-    "kysely": "^0.28.0",
+    "eslint": "^9.25.0",
+    "kysely": "^0.28.1",
     "mongodb": "^6.15.0",
     "mysql2": "^3.14.0",
     "pg": "^8.14.1",
     "prisma": "^6.6.0",
     "tarn": "^3.0.2",
     "tedious": "^18.6.1",
+    "tsdown": "^0.9.0",
     "typescript": "^5.8.3",
     "unbuild": "^3.5.0",
     "vite-tsconfig-paths": "^5.1.4",

package.json

@@ -1,12 +1,31 @@
-import type { AdapterOptions, UnDbSchema } from 'unadapter/types'
+import type { PluginSchema } from 'unadapter/types'
+import { createAdapter, createTable, mergePluginSchemas } from 'unadapter'
 import { memoryAdapter } from 'unadapter/memory'
 
 const db = {
   user: [],
   session: [],
 }
 
-export function getTables(options?: AdapterOptions) {
+interface CustomOptions {
+  appName?: string
+  plugins?: {
+    schema?: PluginSchema
+  }[]
+  user?: {
+    fields?: {
+      name?: string
+      email?: string
+      emailVerified?: string
+      image?: string
+      createdAt?: string
+    }
+  }
+}
+
+const tables = createTable<CustomOptions>((options) => {
+  const { user, account, ..._pluginTables } = mergePluginSchemas<CustomOptions>(options) || {}
+
   return {
     user: {
       modelName: 'user',
@@ -41,26 +60,32 @@ export function getTables(options?: AdapterOptions) {
           required: true,
           fieldName: options?.user?.fields?.createdAt || 'createdAt',
         },
-        updatedAt: {
-          type: 'date',
-          defaultValue: () => new Date(),
-          required: true,
-          fieldName: options?.user?.fields?.updatedAt || 'updatedAt',
+        ...user?.fields,
+        ...options?.user?.fields,
+      },
+    },
+  }
+})
+const adapter = createAdapter(tables, {
+  database: memoryAdapter(
+    db,
+    {},
+  ),
+  plugins: [{
+    schema: {
+      user: {
+        modelName: 'user',
+        fields: {
+          header: {
+            type: 'string',
+            required: true,
+            fieldName: 'header',
+          },
         },
       },
     },
-  } satisfies UnDbSchema
-}
-
-// Initialize the adapter
-const createAdapter = memoryAdapter(
-  db,
-  getTables,
-  {},
-)
-
-// Create an adapter instance
-const adapter = createAdapter({})
+  }],
+})
 
 // eslint-disable-next-line antfu/no-top-level-await
 const user = await adapter.create({