easier mongo setup

.devcontainer/Dockerfile

@@ -0,0 +1,9 @@
+FROM mcr.microsoft.com/devcontainers/typescript-node:1-22-bookworm
+
+# Install MongoDB tools (mongosh, mongorestore, mongodump) directly from MongoDB repository
+RUN curl -fsSL https://www.mongodb.org/static/pgp/server-8.0.asc | gpg --dearmor -o /usr/share/keyrings/mongodb-server-8.0.gpg && \
+    echo "deb [ signed-by=/usr/share/keyrings/mongodb-server-8.0.gpg ] http://repo.mongodb.org/apt/debian bookworm/mongodb-org/8.0 main" | tee /etc/apt/sources.list.d/mongodb-org-8.0.list && \
+    apt-get update && \
+    apt-get install -y mongodb-mongosh mongodb-database-tools vim && \
+    apt-get autoremove -y && \
+    rm -rf /var/lib/apt/lists/*

.devcontainer/devcontainer.json

@@ -3,12 +3,23 @@
 {
 	"name": "Node.js & TypeScript",
 	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
-	"image": "mcr.microsoft.com/devcontainers/typescript-node:1-22-bookworm",
+	"build": {
+		"dockerfile": "Dockerfile"
+	},
 
 	"customizations": {
 		"vscode": {
 			"extensions": ["esbenp.prettier-vscode", "dbaeumer.vscode-eslint", "svelte.svelte-vscode"]
 		}
+	},
+
+	"features": {
+		// Install docker in container
+		"ghcr.io/devcontainers/features/docker-in-docker:2": {
+			// Use proprietary docker engine. I get a timeout error when using the default moby engine and loading
+			// microsoft's PGP keys
+			"moby": false
+		}
 	}
 
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.

docker-compose.yml

@@ -0,0 +1,21 @@
+# For development only
+# Set MONGODB_URL=mongodb://localhost:27017 in .env.local to use this container
+services:
+  mongo:
+    image: mongo:8
+    hostname: mongodb
+    ports:
+      - ${LOCAL_MONGO_PORT:-27017}:27017
+    command: --replSet rs0 --bind_ip_all #--setParameter notablescan=1
+    mem_limit: "5g"
+    mem_reservation: "3g"
+    healthcheck:
+      # need to specify the hostname here because the default is the container name, and we run the app outside of docker
+      test: test $$(mongosh --quiet --eval 'try {rs.status().ok} catch(e) {rs.initiate({_id:"rs0",members:[{_id:0,host:"127.0.0.1:${LOCAL_MONGO_PORT:-27017}"}]}).ok}') -eq 1
+      interval: 5s
+    volumes:
+      - mongodb-data:/data/db
+    restart: always
+
+volumes:
+  mongodb-data:

src/lib/jobs/refresh-conversation-stats.ts

@@ -33,6 +33,10 @@ async function computeStats(params: {
 	span: ConversationStats["date"]["span"];
 	type: ConversationStats["type"];
 }) {
+	if (!(await collections.conversations.estimatedDocumentCount())) {
+		return;
+	}
+
 	const lastComputed = await collections.conversationStats.findOne(
 		{ "date.field": params.dateField, "date.span": params.span, type: params.type },
 		{ sort: { "date.at": -1 } }