Moving everything into a single repo and build

2022-03-20 09:56:28 +01:00
parent 4e570191a6
commit 7352c6c612
64 changed files with 11463 additions and 0 deletions
@@ -0,0 +1,83 @@
+import { Knex } from "knex";
+
+type IndexItem = {
+  page: string;
+  key: string;
+  value: any;
+};
+
+export type KV = {
+  key: string;
+  value: any;
+};
+
+export default function (db: Knex) {
+  const apiObj = {
+    "indexer.clearPageIndexForPage": async (page: string) => {
+      await db<IndexItem>("page_index").where({ page }).del();
+    },
+    "indexer.set": async (page: string, key: string, value: any) => {
+      let changed = await db<IndexItem>("page_index")
+        .where({ page, key })
+        .update("value", JSON.stringify(value));
+      if (changed === 0) {
+        await db<IndexItem>("page_index").insert({
+          page,
+          key,
+          value: JSON.stringify(value),
+        });
+      }
+    },
+    "indexer.batchSet": async (page: string, kvs: KV[]) => {
+      for (let { key, value } of kvs) {
+        await apiObj["indexer.set"](page, key, value);
+      }
+    },
+    "indexer.get": async (page: string, key: string) => {
+      let result = await db<IndexItem>("page_index")
+        .where({ page, key })
+        .select("value");
+      if (result.length) {
+        return JSON.parse(result[0].value);
+      } else {
+        return null;
+      }
+    },
+    "indexer.delete": async (page: string, key: string) => {
+      await db<IndexItem>("page_index").where({ page, key }).del();
+    },
+    "indexer.scanPrefixForPage": async (page: string, prefix: string) => {
+      return (
+        await db<IndexItem>("page_index")
+          .where({ page })
+          .andWhereLike("key", `${prefix}%`)
+          .select("page", "key", "value")
+      ).map(({ page, key, value }) => ({
+        page,
+        key,
+        value: JSON.parse(value),
+      }));
+    },
+    "indexer.scanPrefixGlobal": async (prefix: string) => {
+      return (
+        await db<IndexItem>("page_index")
+          .andWhereLike("key", `${prefix}%`)
+          .select("page", "key", "value")
+      ).map(({ page, key, value }) => ({
+        page,
+        key,
+        value: JSON.parse(value),
+      }));
+    },
+    "indexer.deletePrefixForPage": async (page: string, prefix: string) => {
+      return db<IndexItem>("page_index")
+        .where({ page })
+        .andWhereLike("key", `${prefix}%`)
+        .del();
+    },
+    "indexer.clearPageIndex": async () => {
+      return db<IndexItem>("page_index").del();
+    },
+  };
+  return apiObj;
+}