import { NextRequest, NextResponse } from "next/server";
import {
  withdrawalTransactionDummyData,
  withdrawalTransactionsColumns,
  withdrawalTransactionsSearchLabels,
} from "./mockData";

export async function GET(request: NextRequest) {
  const { searchParams } = new URL(request.url);

  const userId = searchParams.get("userId");
  const status = searchParams.get("status");
  const withdrawalMethod = searchParams.get("withdrawalMethod");

  const dateTimeStart = searchParams.get("dateTime_start");
  const dateTimeEnd = searchParams.get("dateTime_end");

  let filteredTransactions = [...withdrawalTransactionDummyData];

  if (userId) {
    filteredTransactions = filteredTransactions.filter(
      (tx) => tx.userId.toString() === userId,
    );
  }

  if (status) {
    filteredTransactions = filteredTransactions.filter(
      (tx) => tx.status.toLowerCase() === status.toLowerCase(),
    );
  }

  if (dateTimeStart && dateTimeEnd) {
    const start = new Date(dateTimeStart);
    const end = new Date(dateTimeEnd);

    if (isNaN(start.getTime()) || isNaN(end.getTime())) {
      return NextResponse.json(
        {
          error: "Invalid date range",
        },
        { status: 400 },
      );
    }

    filteredTransactions = filteredTransactions.filter((tx) => {
      const txDate = new Date(tx.dateTime);

      if (isNaN(txDate.getTime())) {
        return false;
      }

      return txDate >= start && txDate <= end;
    });
  }

  if (withdrawalMethod) {
    filteredTransactions = filteredTransactions.filter(
      (tx) =>
        tx.withdrawalMethod.toLowerCase() === withdrawalMethod.toLowerCase(),
    );
  }

  return NextResponse.json({
    tableRows: filteredTransactions,
    tableSearchLabels: withdrawalTransactionsSearchLabels,
    tableColumns: withdrawalTransactionsColumns,
  });
}