Collection: fix insertOne success return type InsertOneResult<I> to allow custom defined _id types

Author: devmatteini

.changeset/quiet-lizards-yell.md

@@ -0,0 +1,5 @@
+---
+"effect-mongodb": patch
+---
+
+Fix `Collection.insertOne` success return type `InsertOneResult<I>` to allow custom defined `_id` types

packages/effect-mongodb/dtslint/Collection.ts

@@ -41,10 +41,10 @@ F.pipe(collection, Collection.findOne({ birthday: "2024-11-28" }))
 // insertOne
 // -------------------------------------------------------------------------------------
 
-// $ExpectType Effect<InsertOneResult<Document>, MongoError | ParseError, never>
+// $ExpectType Effect<InsertOneResult<{ readonly birthday: string; }>, MongoError | ParseError, never>
 Collection.insertOne(collection, myType)
 
-// $ExpectType Effect<InsertOneResult<Document>, MongoError | ParseError, never>
+// $ExpectType Effect<InsertOneResult<{ readonly birthday: string; }>, MongoError | ParseError, never>
 F.pipe(collection, Collection.insertOne(myType))
 
 // -------------------------------------------------------------------------------------

packages/effect-mongodb/src/Collection.ts

@@ -101,17 +101,17 @@ export const findOne: {
 export const insertOne: {
   <A extends Document>(doc: A, options?: InsertOneOptions): <I extends Document, R>(
     collection: Collection<A, I, R>
-  ) => Effect.Effect<InsertOneResult, MongoError.MongoError | ParseResult.ParseError, R>
+  ) => Effect.Effect<InsertOneResult<I>, MongoError.MongoError | ParseResult.ParseError, R>
   <A extends Document, I extends Document, R>(
     collection: Collection<A, I, R>,
     doc: A,
     options?: InsertOneOptions
-  ): Effect.Effect<InsertOneResult, MongoError.MongoError | ParseResult.ParseError, R>
+  ): Effect.Effect<InsertOneResult<I>, MongoError.MongoError | ParseResult.ParseError, R>
 } = F.dual((args) => isCollection(args[0]), <A extends Document, I extends Document, R>(
   collection: Collection<A, I, R>,
   doc: A,
   options?: InsertOneOptions
-): Effect.Effect<InsertOneResult, MongoError.MongoError | ParseResult.ParseError, R> =>
+): Effect.Effect<InsertOneResult<I>, MongoError.MongoError | ParseResult.ParseError, R> =>
   F.pipe(
     collection.encode(doc),
     Effect.flatMap((doc) => Effect.promise(() => collection.collection.insertOne(doc, options))),