#4 added simple DB layer

src/service/db/postgres/index.ts

@@ -0,0 +1,47 @@
+import { Storage } from "../index";
+import { VkEvent } from "../../vk/types";
+import { Event } from "../types";
+import { PostgresConfig } from "./types";
+import { Connection, createConnection } from "typeorm";
+
+export class PostgresDB implements Storage {
+  private connection: Connection;
+  constructor(private config: PostgresConfig) {}
+
+  connect = async () => {
+    this.connection = await createConnection({
+      type: "postgres",
+      url: this.config.uri,
+    });
+  };
+
+  getEvent = async (
+    type: VkEvent,
+    id: number,
+    groupId: number,
+    channel: string
+  ) => {
+    return {
+      type,
+      id,
+      groupId,
+      channel,
+      tgMessageId: 0,
+      createdAt: new Date(),
+      updatedAt: new Date(),
+    };
+  };
+
+  createEvent = async (event: Event) => event;
+
+  getLikesFor = async (channel: string, messageId: number) => [];
+
+  getLikeBy = async (channel: string, messageId: number, author: number) => ({
+    channel,
+    messageId,
+    author,
+    text: "",
+    createdAt: new Date(),
+    updatedAt: new Date(),
+  });
+}