// import {
// 	BillingType,
// 	ErrCode,
// 	ProductNotFoundError,
// 	type UsagePriceConfig,
// } from "@autumn/shared";
// import express, { type Router } from "express";
// import { MigrationService } from "@/internal/migrations/MigrationService.js";
// import { constructMigrationJob } from "@/internal/migrations/migrationUtils.js";
// import { ProductService } from "@/internal/products/ProductService.js";
// import {
// 	getBillingType,
// 	pricesOnlyOneOff,
// } from "@/internal/products/prices/priceUtils.js";
// import { isFreeProduct } from "@/internal/products/productUtils.js";
// import { JobName } from "@/queue/JobName.js";
// import { addTaskToQueue } from "@/queue/queueUtils.js";
// import RecaseError from "@/utils/errorUtils.js";
// import type {
// 	ExtendedRequest,
// 	ExtendedResponse,
// } from "@/utils/models/Request.js";
// import { routeHandler } from "@/utils/routerUtils.js";
// import { findPrepaidPrice } from "../products/prices/priceUtils/findPriceUtils.js";

// export const migrationRouter: Router = express.Router();

// export const handleMigrate = async (
// 	req: ExtendedRequest,
// 	res?: ExtendedResponse,
// ) => {
// 	const { orgId, env, db, features } = req;

// 	const { from_product_id, from_version, to_product_id, to_version } = req.body;

// 	const fromProduct = await ProductService.getFull({
// 		db,
// 		env,
// 		orgId,
// 		idOrInternalId: from_product_id,
// 		version: from_version,
// 	});

// 	const toProduct = await ProductService.getFull({
// 		db,
// 		env,
// 		orgId,
// 		idOrInternalId: to_product_id,
// 		version: to_version,
// 	});

// 	if (isFreeProduct(fromProduct.prices) && !isFreeProduct(toProduct.prices)) {
// 		throw new RecaseError({
// 			message: `Cannot migrate customers from free product to paid product`,
// 			code: ErrCode.InvalidRequest,
// 			statusCode: 400,
// 		});
// 	}

// 	// Check if from product is one off, or to product is one off
// 	if (
// 		pricesOnlyOneOff(fromProduct.prices) ||
// 		pricesOnlyOneOff(toProduct.prices)
// 	) {
// 		const fromIsOneOff = pricesOnlyOneOff(fromProduct.prices);
// 		const msg = fromIsOneOff
// 			? `${fromProduct.name} is a one off product, cannot migrate customers on it`
// 			: `${toProduct.name} is a one off product, cannot migrate customers to this product`;

// 		throw new RecaseError({
// 			message: msg,
// 			code: ErrCode.InvalidRequest,
// 			statusCode: 400,
// 		});
// 	}

// 	// if (fromProduct.is_add_on || toProduct.is_add_on) {
// 	// 	throw new RecaseError({
// 	// 		message: `Cannot migrate customers for add on products`,
// 	// 		code: ErrCode.InvalidRequest,
// 	// 		statusCode: 400,
// 	// 	});
// 	// }

// 	for (const price of toProduct.prices) {
// 		const billingType = getBillingType(price.config);
// 		if (billingType !== BillingType.UsageInAdvance) continue;

// 		const config = price.config as UsagePriceConfig;
// 		const internalFeatureId = config.internal_feature_id;
// 		const feature = features.find((f) => f.internal_id === internalFeatureId);

// 		const prepaidPrice = findPrepaidPrice({
// 			prices: fromProduct.prices,
// 			internalFeatureId,
// 		});

// 		if (!prepaidPrice) {
// 			throw new RecaseError({
// 				message: `New product has prepaid price for feature ${feature?.name}, but old product does not, can't perform migration`,
// 				code: ErrCode.InvalidRequest,
// 				statusCode: 400,
// 			});
// 		}
// 	}

// 	if (!isFreeProduct(fromProduct.prices) && isFreeProduct(toProduct.prices)) {
// 		throw new RecaseError({
// 			message: `Cannot migrate customers from paid product to free product`,
// 			code: ErrCode.InvalidRequest,
// 			statusCode: 400,
// 		});
// 	}

// 	if (isFreeProduct(fromProduct.prices) && !isFreeProduct(toProduct.prices)) {
// 		throw new RecaseError({
// 			message: `Cannot migrate customers from free product to paid product`,
// 			code: ErrCode.InvalidRequest,
// 			statusCode: 400,
// 		});
// 	}

// 	// 1. Create migration JOB
// 	const migrationJob = constructMigrationJob({
// 		fromProduct,
// 		toProduct,
// 	});

// 	await MigrationService.createJob({
// 		db,
// 		data: migrationJob,
// 	});

// 	if (!fromProduct || !toProduct) {
// 		throw new ProductNotFoundError({
// 			productId: !fromProduct ? from_product_id : to_product_id,
// 			version: !fromProduct ? from_version : to_version,
// 		});
// 	}

// 	await addTaskToQueue({
// 		jobName: JobName.Migration,
// 		payload: {
// 			migrationJobId: migrationJob.id,
// 		},
// 	});

// 	if (res) {
// 		res.status(200).json(migrationJob);
// 	}
// };

// migrationRouter.post("", async (req: any, res: any) => {
// 	return routeHandler({
// 		req,
// 		res,
// 		action: "migrate",
// 		handler: async (req: ExtendedRequest, res: ExtendedResponse) => {
// 			await handleMigrate(req, res);
// 		},
// 	});
// });