implemented SlopStore and tested

spec/indexeddb_spec.js

@@ -153,7 +153,26 @@ describe("SlopStore", () => {
         db.close()
     })
 
-    it("passes", () => {
-        expect(true).toBeTrue()
+    it("stores slop", async () => {
+        const stored = await slopdb.slop_store.store("its-slop.slop", "some/slop")
+        expect(stored).toBe("its-slop.slop")
+
+        const retrieved = await slopdb.slop_store.get(new URL("http://its-slop.slop/some/slop"))
+        const expected_set = new Set()
+        expected_set.add("some/slop")
+        expect(retrieved).toEqual({domain: "its-slop.slop", paths: expected_set})
+    })
+
+    it("stores new slop paths to existing domains", async () => {
+        const stored = await slopdb.slop_store.store("its-slop.slop", "some/slop")
+        const new_path = await slopdb.slop_store.store("its-slop.slop", "some/other/slop")
+        expect(new_path).toBe("its-slop.slop")
+
+        const expected_set = new Set()
+        expected_set.add("some/slop")
+        expected_set.add("some/other/slop")
+
+        const retrieved = await slopdb.slop_store.get(new URL("http://its-slop.slop/some/slop"))
+        expect(retrieved).toEqual({domain: "its-slop.slop", paths: expected_set})
     })
 })

src/indexed-db.ts

@@ -56,12 +56,24 @@ export class SlopStore {
         this.slopdb = slopdb
     }
 
-    async store(domain: string, path: string) {
-
+    async store(domain: string, path: string): Promise<IDBValidKey> {
+        const slop_store = this.slopdb.transaction(SlopStore.slop_objectstore_name, "readwrite").objectStore(SlopStore.slop_objectstore_name)
+        const existing_domain = await slop_store.get(domain)
+        if(existing_domain) {
+            // append this path to the existing domain object
+            existing_domain.paths.add(path)
+            return slop_store.put(existing_domain)
+        } else {
+            // create a domain object containing this path
+            const paths_set = new Set()
+            paths_set.add(path)
+            return slop_store.add({domain: domain, paths: paths_set})
+        }
     }
 
-    async get(url: string) {
-        
+    async get(url: URL) {
+        const slop_store = this.slopdb.transaction(SlopStore.slop_objectstore_name, "readonly").objectStore(SlopStore.slop_objectstore_name)
+        return await slop_store.get(url.hostname)
     }
 }