fix: rename create_collection indexes->index + doc notes (mongo-3/4/5)

- mongo-3: create_collection param renamed indexes -> index (it seeds ONE index; a key-spec
  builds one compound index, not two). update keyword call sites indexes= -> index=.
- mongo-4: docstring notes an instance is single-use after close() (pymongo 4.x close is
  irreversible; connect() only pings).
- mongo-5: docstring notes construction may raise InvalidURI for a malformed URI.
- README: create_collection index note. bump v0.1.5 -> v0.1.6

Signed-off-by: disqualifier <dev@disqualifier.me>

.gitignore

@@ -1,5 +1,5 @@
 # claude
-CLAUDE.md
+.claude/
 
 # python
 __pycache__/

README.md

@@ -8,29 +8,39 @@ helpers for the common paths, with a raw escape hatch for everything else.
 `requirements.txt`:
 
 ```
-mongo @ git+ssh://git@git.rethinkstudios.io/rethink-public/mongo.git@v0.1.1
+mongo @ git+ssh://git@git.rethinkstudios.io/rethink-public/mongo.git@v0.1.6
 ```
 
 Direct:
 
 ```bash
-pip install "mongo @ git+ssh://git@git.rethinkstudios.io/rethink-public/mongo.git@v0.1.1"
+pip install "mongo @ git+ssh://git@git.rethinkstudios.io/rethink-public/mongo.git@v0.1.6"
 ```
 
 Requires `motor` and `pymongo` (pulled transitively).
 
+Drop the `@v0.1.6` suffix from the line above to install the latest unpinned.
+
 ## Usage
 
 **Object (preferred)** — one client per process:
 
 ```python
-from mongo import Mongo
+from mongo import MongoDB
 
-db = Mongo(conn_string, database)          # attach as bot.db / app.db
+db = MongoDB(conn_string, database)         # attach as bot.db / app.db
+await db.connect()                          # optional: ping to fail-early on a bad URI
 users = await db.get_documents("users", {"active": True})
 db.close()                                  # on shutdown (sync)
+
+# or with guaranteed cleanup:
+async with MongoDB(conn_string, database) as db:
+    await db.get_documents("users", {"active": True})
 ```
 
+The class is `MongoDB`; **`Mongo` remains a back-compat alias** (`Mongo = MongoDB`), so
+existing `Mongo(...)` call sites keep working unchanged.
+
 **Module proxy (back-compat)** — arm once, then call bare:
 
 ```python
@@ -42,10 +52,26 @@ users = await mongo.get_documents("users", {"active": True})
 Both styles share one client. The proxy exists so legacy call sites keep working
 after a one-line `init()`; new code should use the object.
 
+## Naming consistency with the datastore trio
+
+mongo predates the `redis`/`psql`/`mysql` trio; this version makes it surface-consistent
+**without breaking anything** (all additive, every old name preserved):
+
+- class is **`MongoDB`** (with `Mongo` kept as an alias)
+- **`connect()`** + **`async with`** like the trio (motor connects lazily, so `connect()`
+  just pings to validate early)
+- **`exists()`** aliases `check_document_exists()`; **`delete()`** aliases
+  `delete_document()` — old names still work, the trio-consistent names are now available
+
+The one deliberate difference that remains: **mongo swallows** (see below) where the trio
+is **fail-loud**. That's intentional — flipping it would break existing consumers' branch-
+on-result control flow.
+
 ## Error contract
 
 - **Wrapped methods** log-and-swallow exceptions and return a safe default
-  (`False` / `[]` / `{}` / `0` / `None`). Branch on the result.
+  (`False` / `[]` / `{}` / `0` / `None`). Branch on the result. (`connect()` is the
+  exception — it raises on a bad connection so you can fail-early.)
 - **`db.collection(name)`** (or `db[name]`) returns the raw motor collection:
   full driver surface, no swallowing, **raises**. Use it for anything not wrapped
   (`find_one_and_*` beyond what's exposed, change streams, complex bulk ops).
@@ -61,6 +87,9 @@ are included.
 
 - `from mongo import func` won't see the proxy (resolved at import, before `init`).
   Use `import mongo` then `mongo.func(...)`.
+- `create_collection(collection, index=...)` seeds **one** index (the param is `index`,
+  renamed from `indexes` in v0.1.6). A key-spec like `[("a",1),("b",1)]` builds one
+  compound index, not two — call `create_index` per index for multiples.
 - `find_one_and_update` returns the **after** image by default (`return_after=True`).
 - `bulk_write` takes pymongo ops the caller builds:
   ```python
@@ -71,4 +100,4 @@ are included.
 
 ## Versioning
 
-Tagged `vX.Y.Z`. Pin the tag in `requirements.txt`; bump deliberately.
+Releases are tagged `vX.Y.Z`. The install line above pins a release; drop the `@vX.Y.Z` suffix to install the latest unpinned. Pin deliberately for reproducible installs.

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "mongo"
-version = "0.1.1"
+version = "0.1.6"
 description = "async mongodb wrapper over motor with a raw escape hatch"
 requires-python = ">=3.10"
 dependencies = [

src/mongo/__init__.py

@@ -1,14 +1,18 @@
-from .mongo import Mongo, init, instance
+from .mongo import MongoDB, Mongo, init, instance
 
-__all__ = ["Mongo", "init", "instance"]
+__all__ = ["MongoDB", "Mongo", "init", "instance"]
 
 
 def __getattr__(name: str):
     """proxy bare package attribute access to the default instance (PEP 562)
 
     lets `import mongo; await mongo.get_documents(...)` work after init().
-    `from mongo import func` still won't see this (resolved before init)
+    `from mongo import func` still won't see this (resolved before init).
+    note: the bare-proxy raw escape hatch is `mongo.collection(name)`, not
+    `mongo[name]` — module-level subscripting isn't a thing in python, so the proxy
+    can only forward named attributes. on a Mongo instance both `db[name]` and
+    `db.collection(name)` work.
     """
-    if not name.startswith("_") and hasattr(Mongo, name):
+    if not name.startswith("_") and hasattr(MongoDB, name):
         return getattr(instance(), name)
     raise AttributeError(f"module {__name__!r} has no attribute {name!r}")

src/mongo/mongo.py

@@ -2,11 +2,19 @@
 async mongodb wrapper over motor
 
 object (preferred), one client per process:
-    from mongo import Mongo
-    bot.db = Mongo(conn_string, database)
+    from mongo import MongoDB
+    bot.db = MongoDB(conn_string, database)
+    await bot.db.connect()                    # optional: ping to fail-early
     await bot.db.get_documents("users", {"active": True})
     bot.db.close()                            # on shutdown (sync)
 
+    # async with (guaranteed cleanup):
+    async with MongoDB(conn_string, database) as db:
+        await db.get_documents("users", {})
+
+`Mongo` remains a back-compat alias of `MongoDB` — existing `Mongo(...)` call sites keep
+working unchanged.
+
 module proxy (back-compat), arm once then call bare:
     import mongo                              # not `from mongo import ...`
     mongo.init(conn_string, database)
@@ -16,6 +24,15 @@ errors:
     wrapped methods log and swallow, returning a safe default
     (False / [] / {} / 0 / None). .collection(name) / db[name] return
     the raw motor collection: full driver surface, raises, nothing swallowed.
+    NOTE: mongo SWALLOWS by design — this is the one deliberate difference from the
+    newer datastore trio (redis/psql/mysql), which is fail-loud. mongo's contract is
+    kept as-is so existing consumers' branch-on-result control flow doesn't break.
+
+naming consistency with the trio (all additive — old names still work):
+    - class is `MongoDB` (was `Mongo`, kept as alias)
+    - `connect()` / `async with` like the trio (motor connects lazily, so connect()
+      just pings to validate early)
+    - `exists()` aliases `check_document_exists()`; `delete()` aliases `delete_document()`
 
 notes:
     - the proxy needs `import mongo`; `from mongo import func` resolves before init
@@ -27,18 +44,50 @@ import logging
 from typing import Any, List, Optional
 
 from pymongo import ReturnDocument
-from motor.motor_asyncio import AsyncIOMotorClient, AsyncIOMotorCollection
+from motor.motor_asyncio import AsyncIOMotorClient, AsyncIOMotorCollection, AsyncIOMotorDatabase
 
 log = logging.getLogger(__name__)
 
 
-class Mongo:
+class MongoDB:
     """async mongodb wrapper; one client per process, attach to bot as bot.db"""
 
     def __init__(self, connection_string: str, database: str):
+        # motor builds the client eagerly here (no network I/O yet). a syntactically
+        # malformed URI (e.g. "mongodb://") makes the driver raise InvalidURI at
+        # construction, before connect() — a deploy-time value, so it surfaces at startup
+        # either way and there is nothing to clean up.
         self._client = AsyncIOMotorClient(connection_string)
         self._db = self._client[database]
 
+    async def connect(self) -> "MongoDB":
+        """validate the connection with a ping and return self
+
+        motor connects lazily, so this is optional — call it to fail early on a bad
+        URI/credentials rather than on the first real op (parallel to the trio's
+        connect()). raises on a bad connection, unlike the swallowing wrapped methods.
+
+        an instance is single-use: pymongo 4.x `close()` is irreversible, and connect()
+        only pings (it does not rebuild the client). do not reuse an instance after
+        close()/`async with` exit — construct a fresh MongoDB.
+        """
+        await self._client.admin.command("ping")
+        return self
+
+    async def __aenter__(self) -> "MongoDB":
+        try:
+            return await self.connect()
+        except BaseException:
+            # connect()/ping failing here would otherwise leak the motor client (built
+            # eagerly in __init__ with a background topology monitor + pool) — __aexit__
+            # is not called when __aenter__ raises. close it before propagating so a
+            # retry loop against a flapping server doesn't accumulate live clients.
+            self.close()
+            raise
+
+    async def __aexit__(self, exc_type, exc, tb) -> None:
+        self.close()
+
     def __getitem__(self, collection: str) -> AsyncIOMotorCollection:
         """raw collection access via subscript: bot.db['users'].aggregate(...)"""
         return self._db[collection]
@@ -48,7 +97,7 @@ class Mongo:
         return self._db[name]
 
     @property
-    def database(self):
+    def database(self) -> AsyncIOMotorDatabase:
         """raw motor database handle"""
         return self._db
 
@@ -68,13 +117,19 @@ class Mongo:
     # -------------------------------------------------------------------------
     #   collection / index management
 
-    async def create_collection(self, collection: str, indexes=None) -> bool:
-        """create a collection, optionally seeding an index"""
+    async def create_collection(self, collection: str, index=None) -> bool:
+        """create a collection, optionally seeding ONE index
+
+        `index` is a single index key-spec (e.g. `[("a", 1), ("b", 1)]` builds one
+        compound index, NOT two). for multiple indexes call `create_index` per index.
+        renamed from `indexes` in v0.1.6 to reflect that it seeds a single index; pass it
+        positionally, or update a keyword call site from `indexes=` to `index=`.
+        """
         try:
             await self._db.create_collection(collection)
-            if indexes:
-                await self._db[collection].create_index(indexes)
-                log.info(f"created indexes for {collection}")
+            if index:
+                await self._db[collection].create_index(index)
+                log.info(f"created index for {collection}")
             return True
         except Exception:
             log.exception(f"db.create_collection() for {collection}")
@@ -181,7 +236,11 @@ class Mongo:
             return []
 
     async def get_document_hashmap(self, collection: str, target: dict, key: str) -> dict:
-        """return matching documents keyed into a dict by the given field"""
+        """return matching documents keyed into a dict by the given field
+
+        documents missing `key` are skipped (not in the result); a later document
+        with a duplicate key value overwrites an earlier one.
+        """
         try:
             cursor = self._db[collection].find(target)
             return {doc[key]: doc async for doc in cursor if key in doc}
@@ -192,7 +251,11 @@ class Mongo:
     async def get_document_fields(
         self, collection: str, target: dict, key: str, fields: Optional[dict] = None
     ) -> List:
-        """return a flat list of one field's value across matching documents"""
+        """return a flat list of one field's value across matching documents
+
+        documents missing `key` are skipped, so the list length may be smaller than
+        the match count.
+        """
         try:
             cursor = self._db[collection].find(target, fields)
             return [doc[key] async for doc in cursor if key in doc]
@@ -216,6 +279,10 @@ class Mongo:
             log.exception(f"db.check_document_exists() on {collection}")
             return False
 
+    async def exists(self, collection: str, target: dict) -> bool:
+        """trio-consistent alias of check_document_exists"""
+        return await self.check_document_exists(collection, target)
+
     async def count_value_in_array(self, collection: str, array_field: str, value: str) -> int:
         """count documents whose array field contains value"""
         try:
@@ -299,10 +366,15 @@ class Mongo:
             return 0
 
     async def update_document_field(self, collection: str, target: dict, updates: dict) -> bool:
-        """$set one or more fields on a single document"""
+        """$set one or more fields on a single document
+
+        returns True when a document matched, even if the write changed nothing (a
+        `$set` to the identical value leaves `modified_count=0`); use `matched_count`
+        so an idempotent no-op on an existing doc isn't misread as a failure.
+        """
         try:
             response = await self._db[collection].update_one(target, {"$set": updates})
-            return response.modified_count > 0
+            return response.matched_count > 0
         except Exception:
             log.exception(f"db.update_document_field() on {collection}")
             return False
@@ -310,10 +382,15 @@ class Mongo:
     async def update_document_operator(
         self, collection: str, target: dict, update_query: dict
     ) -> bool:
-        """apply raw update operators ($set/$inc/$unset/...) to a single document"""
+        """apply raw update operators ($set/$inc/$unset/...) to a single document
+
+        returns True when a document matched, even if the operators changed nothing
+        (e.g. `$set` to an identical value) — use `matched_count` so an idempotent
+        write on an existing doc isn't misread as a failure.
+        """
         try:
             response = await self._db[collection].update_one(target, update_query)
-            return response.modified_count > 0
+            return response.matched_count > 0
         except Exception:
             log.exception(f"db.update_document_operator() on {collection}")
             return False
@@ -343,10 +420,15 @@ class Mongo:
     async def document_push_array(
         self, collection: str, target: dict, array: str, value: Any
     ) -> bool:
-        """$push a value onto an array field"""
+        """$push a value onto an array field
+
+        returns True when a document matched (consistent with the other single-doc
+        update helpers); $push always mutates, so matched_count and modified_count
+        agree here in practice.
+        """
         try:
             response = await self._db[collection].update_one(target, {"$push": {array: value}})
-            return response.modified_count > 0
+            return response.matched_count > 0
         except Exception:
             log.exception(f"db.document_push_array() on {collection}")
             return False
@@ -355,13 +437,17 @@ class Mongo:
         self, collection: str, target: dict, array: str, value: Any,
         field_to_set: str, set_value: Any,
     ) -> bool:
-        """$push to an array and $set a field in one update"""
+        """$push to an array and $set a field in one update
+
+        returns True when a document matched (consistent with the other single-doc
+        update helpers).
+        """
         try:
             response = await self._db[collection].update_one(
                 target,
                 {"$push": {array: value}, "$set": {field_to_set: set_value}},
             )
-            return response.modified_count > 0
+            return response.matched_count > 0
         except Exception:
             log.exception(f"db.document_push_and_set() on {collection}")
             return False
@@ -369,10 +455,15 @@ class Mongo:
     async def document_pop_array(
         self, collection: str, target: dict, array: str, value: Any
     ) -> bool:
-        """$pull a value from an array field"""
+        """$pull a value from an array field
+
+        returns True when a document matched, even if nothing was pulled (the value
+        was absent) — use `matched_count` so a no-op pull on an existing doc isn't
+        misread as a failure.
+        """
         try:
             response = await self._db[collection].update_one(target, {"$pull": {array: value}})
-            return response.modified_count > 0
+            return response.matched_count > 0
         except Exception:
             log.exception(f"db.document_pop_array() on {collection}")
             return False
@@ -431,6 +522,10 @@ class Mongo:
             log.exception(f"db.delete_document() on {collection}")
             return 0
 
+    async def delete(self, collection: str, target: dict) -> int:
+        """trio-consistent alias of delete_document (single-document delete)"""
+        return await self.delete_document(collection, target)
+
     async def delete_documents(self, collection: str, target: dict) -> int:
         """delete all matching documents, returning deleted count"""
         try:
@@ -484,6 +579,11 @@ class Mongo:
             return False
 
 
+# back-compat alias: the class was historically `Mongo`; existing `Mongo(...)` call
+# sites keep working unchanged
+Mongo = MongoDB
+
+
 # -----------------------------------------------------------------------------
 #   backwards-compat module proxy
 #       - lets legacy call sites keep using `await mongo.get_documents(...)`
@@ -492,17 +592,17 @@ class Mongo:
 #       - does NOT work with `from mongo import func` (resolved at import,
 #         before init runs) — switch those sites to `import mongo`
 
-_default: Optional[Mongo] = None
+_default: Optional[MongoDB] = None
 
 
-def init(connection_string: str, database: str) -> Mongo:
+def init(connection_string: str, database: str) -> MongoDB:
     """arm the module-level default instance and return it"""
     global _default
-    _default = Mongo(connection_string, database)
+    _default = MongoDB(connection_string, database)
     return _default
 
 
-def instance() -> Mongo:
+def instance() -> MongoDB:
     """return the default instance, raising if init() has not run"""
     if _default is None:
         raise RuntimeError("mongo not initialized; call mongo.init(conn, db) first")