shitton of the ai changes

src/commands/import-db.ts

@@ -0,0 +1,54 @@
+import {Command} from "../base/command";
+import {Message} from "typescript-telegram-bot-api";
+import {Requirements} from "../base/requirements";
+import {Requirement} from "../base/requirement";
+import {bot} from "../index";
+import {DatabaseManager, type DatabaseBackupPayload} from "../db/database-manager";
+import {downloadTelegramFile, logError, replyToMessage, sendErrorPlaceholder} from "../util/utils";
+import {Environment} from "../common/environment";
+import {MessageStore} from "../common/message-store";
+import {UserStore} from "../common/user-store";
+
+export class ImportDb extends Command {
+    command = ["importdb"];
+
+    argsMode = "optional" as const;
+
+    requirements = Requirements.Build(Requirement.BOT_CREATOR);
+
+    async execute(msg: Message, match?: RegExpExecArray | null): Promise<void> {
+        try {
+            const payloadText = await this.resolvePayloadText(msg, match);
+            if (!payloadText) {
+                await replyToMessage({message: msg, text: Environment.databaseImportNeedJsonText});
+                return;
+            }
+
+            const payload = JSON.parse(payloadText) as DatabaseBackupPayload;
+            const result = await DatabaseManager.importBackupFromJsonPayload(payload);
+
+            MessageStore.clear();
+            UserStore.clear();
+
+            await replyToMessage({
+                message: msg,
+                text: `${Environment.databaseImportDoneText} Users: ${result.users}, messages: ${result.messages}.`,
+            });
+        } catch (error) {
+            logError(error instanceof Error ? error : String(error));
+            await sendErrorPlaceholder(msg);
+        }
+    }
+
+    private async resolvePayloadText(msg: Message, match?: RegExpExecArray | null): Promise<string | null> {
+        const argText = match?.[3]?.trim();
+        if (argText) return argText;
+
+        const document = msg.document ?? msg.reply_to_message?.document;
+        if (!document) return null;
+
+        const file = await bot.getFile({file_id: document.file_id});
+        const buffer = await downloadTelegramFile(file.file_path);
+        return buffer ? buffer.toString("utf8").trim() : null;
+    }
+}