"use server";
import { cookies } from "next/headers";

import {
  AUTH_COOKIE_NAME,
  BE_BASE_URL,
  REVALIDATE_SECONDS,
  HEALTH_CACHE_TAG,
} from "./constants";

export interface IHealthData {
  success?: boolean;
  message?: string;
  total?: number;
  successful?: number;
  acceptance_rate?: number;
  amount?: number;
  atv?: number;
  stats?: Array<{
    label: string;
    value: string | number;
    change: string;
  }>;
}

export interface IFetchHealthDataParams {
  dateStart?: string;
  dateEnd?: string;
}

export async function fetchHealthDataService({
  dateStart,
  dateEnd,
}: IFetchHealthDataParams = {}): Promise<IHealthData> {
  const cookieStore = await cookies();
  const token = cookieStore.get(AUTH_COOKIE_NAME)?.value;

  if (!token) {
    throw new Error("Missing auth token");
  }

  const queryParts: string[] = [];

  // Add date filter if provided
  if (dateStart && dateEnd) {
    queryParts.push(
      `Modified=BETWEEN/${encodeURIComponent(dateStart)}/${encodeURIComponent(dateEnd)}`
    );
  } else if (dateStart) {
    queryParts.push(`Modified=>/${encodeURIComponent(dateStart)}`);
  } else if (dateEnd) {
    queryParts.push(`Modified=</${encodeURIComponent(dateEnd)}`);
  }

  const queryString = queryParts.join("&");
  const backendUrl = `${BE_BASE_URL}/api/v1/transactions/health${
    queryString ? `?${queryString}` : ""
  }`;

  const response = await fetch(backendUrl, {
    method: "GET",
    headers: {
      "Content-Type": "application/json",
      Authorization: `Bearer ${token}`,
    },
    next: {
      revalidate: REVALIDATE_SECONDS,
      tags: [HEALTH_CACHE_TAG],
    },
  });

  if (!response.ok) {
    const errorData = await response
      .json()
      .catch(() => ({ message: "Failed to fetch health data" }));
    throw new Error(errorData?.message || "Failed to fetch health data");
  }

  const data = (await response.json()) as IHealthData;

  console.log("[data]", data.stats);
  return data;
}