Update chat message visibility for moderation (#524)

* update message viz in db

* create admin endpoint to update message visibility

* convert UpdateMessageVisibility api to take in an array of IDs to change visibility on instead

* Support requesting filtered or unfiltered chat messages

* Handle UPDATE chat events on front and backend for toggling messages

* Return entire message with UPDATE events

* Remove the UPDATE message type

* Revert "Remove the UPDATE message type"

This reverts commit 3a83df3d492f7ecf2bab65e845aa2b0365d3a7f6.

* update -> visibility update

* completely remove messages when they turn hidden on VISIBILITY-UPDATEs, and insert them if they turn visible

* Explicitly set visibility

* Fix multi-id sql updates

* increate scroll buffer a bit so chat scrolls when new large messages come in

* Add automated test around chat moderation

* Add new chat admin APIs to api spec

* Commit updated API documentation

Co-authored-by: Gabe Kangas <gabek@real-ity.com>
Co-authored-by: Owncast <owncast@owncast.online>

controllers/admin/chat.go

@@ -0,0 +1,60 @@
+package admin
+
+// this is endpoint logic
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/owncast/owncast/controllers"
+	"github.com/owncast/owncast/core"
+	"github.com/owncast/owncast/core/chat"
+	log "github.com/sirupsen/logrus"
+)
+
+// UpdateMessageVisibility updates an array of message IDs to have the same visiblity.
+func UpdateMessageVisibility(w http.ResponseWriter, r *http.Request) {
+	if r.Method != "POST" {
+		controllers.WriteSimpleResponse(w, false, r.Method+" not supported")
+		return
+	}
+
+	decoder := json.NewDecoder(r.Body)
+	var request messageVisibilityUpdateRequest // creates an empty struc
+
+	err := decoder.Decode(&request) // decode the json into `request`
+	if err != nil {
+		log.Errorln(err)
+		controllers.WriteSimpleResponse(w, false, "")
+		return
+	}
+
+	// // make sql update call here.
+	// // := means create a new var
+	// _db := data.GetDatabase()
+	// updateMessageVisibility(_db, request)
+
+	if err := chat.SetMessagesVisibility(request.IDArray, request.Visible); err != nil {
+		controllers.WriteSimpleResponse(w, false, err.Error())
+		return
+	}
+
+	controllers.WriteSimpleResponse(w, true, "changed")
+}
+
+type messageVisibilityUpdateRequest struct {
+	IDArray []string `json:"idArray"`
+	Visible bool     `json:"visible"`
+}
+
+// GetChatMessages returns all of the chat messages, unfiltered.
+func GetChatMessages(w http.ResponseWriter, r *http.Request) {
+	// middleware.EnableCors(&w)
+	w.Header().Set("Content-Type", "application/json")
+
+	messages := core.GetAllChatMessages(false)
+
+	if err := json.NewEncoder(w).Encode(messages); err != nil {
+		log.Errorln(err)
+	}
+}