FFI Bindings filter messages by content type (#1440)

Part of #1403

Adds the ability to pass in a vec of content types to the bindings_ffi find_messages function:

https://github.com/xmtp/libxmtp/blob/2601bb947cf732baa21fb118fc024012b9da8324/bindings_ffi/src/mls.rs#L1255-L1263

bindings_ffi/Cargo.toml

@@ -12,10 +12,12 @@ futures.workspace = true
 tracing.workspace = true
 tracing-subscriber = { workspace = true, features = ["registry", "env-filter", "fmt", "json"] }
 parking_lot.workspace = true
+prost.workspace = true
 thiserror.workspace = true
 tokio = { workspace = true, features = ["macros"] }
 uniffi = { version = "0.28.0", default-features = false, features = ["tokio"] }
 xmtp_api_grpc = { path = "../xmtp_api_grpc" }
+xmtp_content_types = { path = "../xmtp_content_types" }
 xmtp_cryptography = { path = "../xmtp_cryptography" }
 xmtp_id = { path = "../xmtp_id" }
 xmtp_mls = { path = "../xmtp_mls" }

bindings_ffi/src/mls.rs

@@ -19,8 +19,8 @@ use xmtp_mls::groups::device_sync::preference_sync::UserPreferenceUpdate;
 use xmtp_mls::groups::scoped_client::LocalScopedGroupClient;
 use xmtp_mls::groups::HmacKey;
 use xmtp_mls::storage::group::ConversationType;
-use xmtp_mls::storage::group_message::MsgQueryArgs;
 use xmtp_mls::storage::group_message::SortDirection;
+use xmtp_mls::storage::group_message::{ContentType, MsgQueryArgs};
 use xmtp_mls::{
     api::ApiClientWrapper,
     builder::ClientBuilder,
@@ -1286,6 +1286,38 @@ pub struct FfiListMessagesOptions {
     pub limit: Option<i64>,
     pub delivery_status: Option<FfiDeliveryStatus>,
     pub direction: Option<FfiDirection>,
+    pub content_types: Option<Vec<FfiContentType>>,
+}
+
+#[derive(uniffi::Enum, Clone)]
+pub enum FfiContentType {
+    Unknown,
+    Text,
+    GroupMembershipChange,
+    GroupUpdated,
+    Reaction,
+    ReadReceipt,
+    Reply,
+    Attachment,
+    RemoteAttachment,
+    TransactionReference,
+}
+
+impl From<FfiContentType> for ContentType {
+    fn from(value: FfiContentType) -> Self {
+        match value {
+            FfiContentType::Unknown => ContentType::Unknown,
+            FfiContentType::Text => ContentType::Text,
+            FfiContentType::GroupMembershipChange => ContentType::GroupMembershipChange,
+            FfiContentType::GroupUpdated => ContentType::GroupUpdated,
+            FfiContentType::Reaction => ContentType::Reaction,
+            FfiContentType::ReadReceipt => ContentType::ReadReceipt,
+            FfiContentType::Reply => ContentType::Reply,
+            FfiContentType::Attachment => ContentType::Attachment,
+            FfiContentType::RemoteAttachment => ContentType::RemoteAttachment,
+            FfiContentType::TransactionReference => ContentType::TransactionReference,
+        }
+    }
 }
 
 #[derive(uniffi::Record, Clone, Default)]
@@ -1358,7 +1390,11 @@ impl FfiConversation {
                     .maybe_kind(kind)
                     .maybe_delivery_status(delivery_status)
                     .maybe_limit(opts.limit)
-                    .maybe_direction(direction),
+                    .maybe_direction(direction)
+                    .maybe_content_types(
+                        opts.content_types
+                            .map(|types| types.into_iter().map(|t| t.into()).collect()),
+                    ),
             )?
             .into_iter()
             .map(|msg| msg.into())
@@ -1904,19 +1940,25 @@ mod tests {
     };
     use crate::{
         connect_to_backend, get_inbox_id_for_address, inbox_owner::SigningError, FfiConsent,
-        FfiConsentEntityType, FfiConsentState, FfiConversation, FfiConversationCallback,
-        FfiConversationMessageKind, FfiCreateGroupOptions, FfiGroupPermissionsOptions,
-        FfiInboxOwner, FfiListConversationsOptions, FfiListMessagesOptions, FfiMetadataField,
-        FfiPermissionPolicy, FfiPermissionPolicySet, FfiPermissionUpdateType, FfiSubscribeError,
+        FfiConsentEntityType, FfiConsentState, FfiContentType, FfiConversation,
+        FfiConversationCallback, FfiConversationMessageKind, FfiCreateGroupOptions, FfiDirection,
+        FfiGroupPermissionsOptions, FfiInboxOwner, FfiListConversationsOptions,
+        FfiListMessagesOptions, FfiMetadataField, FfiPermissionPolicy, FfiPermissionPolicySet,
+        FfiPermissionUpdateType, FfiSubscribeError,
     };
     use ethers::utils::hex;
-    use std::sync::{
-        atomic::{AtomicU32, Ordering},
-        Arc, Mutex,
+    use prost::Message;
+    use std::{
+        collections::HashMap,
+        sync::{
+            atomic::{AtomicU32, Ordering},
+            Arc, Mutex,
+        },
     };
     use tokio::{sync::Notify, time::error::Elapsed};
     use xmtp_common::tmp_path;
     use xmtp_common::{wait_for_eq, wait_for_ok};
+    use xmtp_content_types::{read_receipt, text::TextCodec, ContentCodec};
     use xmtp_cryptography::{signature::RecoverableSignature, utils::rng};
     use xmtp_id::associations::{
         generate_inbox_id,
@@ -1927,6 +1969,7 @@ mod tests {
         storage::EncryptionKey,
         InboxOwner,
     };
+    use xmtp_proto::xmtp::mls::message_contents::{ContentTypeId, EncodedContent};
 
     const HISTORY_SYNC_URL: &str = "http://localhost:5558";
 
@@ -5023,4 +5066,95 @@ mod tests {
             Ok(_) => panic!("Expected an error, but got Ok"),
         }
     }
+
+    #[tokio::test(flavor = "multi_thread", worker_threads = 5)]
+    async fn test_can_list_messages_with_content_types() {
+        // Create test clients
+        let alix = new_test_client().await;
+        let bo = new_test_client().await;
+
+        // Alix creates group with Bo
+        let alix_group = alix
+            .conversations()
+            .create_group(
+                vec![bo.account_address.clone()],
+                FfiCreateGroupOptions::default(),
+            )
+            .await
+            .unwrap();
+
+        // Bo syncs to get the group
+        bo.conversations().sync().await.unwrap();
+        let bo_group = bo.conversation(alix_group.id()).unwrap();
+
+        // Alix sends first message
+        alix_group.send("hey".as_bytes().to_vec()).await.unwrap();
+
+        // Bo syncs and responds
+        bo_group.sync().await.unwrap();
+        let bo_message_response = TextCodec::encode("hey alix".to_string()).unwrap();
+        let mut buf = Vec::new();
+        bo_message_response.encode(&mut buf).unwrap();
+        bo_group.send(buf).await.unwrap();
+
+        // Bo sends read receipt
+        let read_receipt_content_id = ContentTypeId {
+            authority_id: "xmtp.org".to_string(),
+            type_id: read_receipt::ReadReceiptCodec::TYPE_ID.to_string(),
+            version_major: 1,
+            version_minor: 0,
+        };
+        let read_receipt_encoded_content = EncodedContent {
+            r#type: Some(read_receipt_content_id),
+            parameters: HashMap::new(),
+            fallback: None,
+            compression: None,
+            content: vec![],
+        };
+
+        let mut buf = Vec::new();
+        read_receipt_encoded_content.encode(&mut buf).unwrap();
+        bo_group.send(buf).await.unwrap();
+
+        // Alix syncs and gets all messages
+        alix_group.sync().await.unwrap();
+        let latest_message = alix_group
+            // ... existing code ...
+            .find_messages(FfiListMessagesOptions {
+                direction: Some(FfiDirection::Descending),
+                limit: Some(1),
+                ..Default::default()
+            })
+            .await
+            .unwrap();
+
+        // Verify last message is the read receipt
+        assert_eq!(latest_message.len(), 1);
+        let latest_message_encoded_content =
+            EncodedContent::decode(latest_message.last().unwrap().content.clone().as_slice())
+                .unwrap();
+        assert_eq!(
+            latest_message_encoded_content.r#type.unwrap().type_id,
+            "readReceipt"
+        );
+
+        // Get only text messages
+        let text_messages = alix_group
+            .find_messages(FfiListMessagesOptions {
+                content_types: Some(vec![FfiContentType::Text]),
+                direction: Some(FfiDirection::Descending),
+                limit: Some(1),
+                ..Default::default()
+            })
+            .await
+            .unwrap();
+
+        // Verify last message is "hey alix" when filtered
+        assert_eq!(text_messages.len(), 1);
+        let latest_message_encoded_content =
+            EncodedContent::decode(text_messages.last().unwrap().content.clone().as_slice())
+                .unwrap();
+        let text_message = TextCodec::decode(latest_message_encoded_content).unwrap();
+        assert_eq!(text_message, "hey alix");
+    }
 }