Improve backfill progress ui (#22)

* chore(core): remove codegen log and simplify backfill logs

* docs(core): add readme for eta calculation approach

* chore(examples): update handler

* feat(cope): wip eta impl

* refactor(core): use typed event emitter

* feat(core): add new eta calculation, split out progress for sources, add cache pickup

* refactor(core): remove checkpoints

* feat(core): improve handler progress bar

* feat(core): change cached part to white color, improve handler progress text

* test(core): fix event names

* chore(core): delete readme

examples/art-gobblers/handlers/ArtGobblers.ts

@@ -1,14 +1,12 @@
 import { ArtGobbledHandler } from "../generated/handlers";
 
 const handleArtGobbled: ArtGobbledHandler = async (event, context) => {
-  console.log("Art Gobbled!");
-
-  context.entities.GobbledArt.insert(`${event.params.nft}-${event.params.id}`, {
-    id: `${event.params.nft}-${event.params.id}`,
-    user: event.params.user,
-  });
-
-  return;
+  await context.entities.GobbledArt.insert(
+    `${event.params.nft}-${event.params.id}`,
+    {
+      user: event.params.user,
+    }
+  );
 };
 
 export const ArtGobblers = {

packages/core/package.json

@@ -51,6 +51,7 @@
     "@types/node": "^18.7.8",
     "@types/react": "^18.0.25",
     "jest": "^29.3.1",
-    "tsconfig-replace-paths": "^0.0.11"
+    "tsconfig-replace-paths": "^0.0.11",
+    "typed-emitter": "^2.1.0"
   }
 }