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import type { Server } from "bun";
import { ConsoleTracingLogger, TracingLogger } from "@/shared/log";
import { WidgetRequest } from "@/shared/schema";
import {
ProcessorResponse,
SQSWidgetRequestProcessor,
WidgetRequestProcessor,
} from "./processors";
import { SQSClient } from "@aws-sdk/client-sqs";
export class WidgetRequestHandler {
private processor: WidgetRequestProcessor;
private logger: TracingLogger;
constructor(processor: WidgetRequestProcessor, logger: TracingLogger) {
this.processor = processor;
this.logger = logger;
}
public async handleRequest(request: Request): Promise<Response> {
let headers = new Headers({
"Content-Type": "application/json",
});
let response: ProcessorResponse = { success: true, message: "success" };
let status = 200;
let widgetRequest;
if (request.body) {
const body = (await request.json()) as { event: any };
if (body) {
const event = body.event!;
this.logger.info(`received Body=(${JSON.stringify(event)})`);
widgetRequest = WidgetRequest.safeParse(event);
}
}
if (!widgetRequest || !widgetRequest.success) {
status = 400;
response = {
success: false,
message: widgetRequest?.error
? widgetRequest.error.toString()
: "invalid request body",
};
} else {
try {
response = await this.processor.handle(widgetRequest.data);
} catch (e) {
status = 500;
response = {
success: false,
message: e?.toString() ?? "failed to process",
};
}
}
return new Response(JSON.stringify(response), {
status,
headers,
});
}
}
const lambdaHandler = async (
request: Request,
_server: Server
): Promise<Response> => {
const logger = new ConsoleTracingLogger("handler");
const sourceQueueUrl = process.env.SOURCE_QUEUE!;
const sqsClient = new SQSClient({
region: process.env.AWS_REGION!,
});
const processor = new SQSWidgetRequestProcessor(
sqsClient,
sourceQueueUrl,
logger.createChild("WidgetRequestProcessor")
);
const handler = new WidgetRequestHandler(
processor,
logger.createChild("WidgetRequestHandler")
);
return await handler.handleRequest(request);
};
export default lambdaHandler;
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