import { upsertFinancialBalance } from "../../../services/userService.ts";
import { define } from "../../../utils.ts";
import { MakeNewDate } from "../../../helpers.ts";
import { SessionCookie } from "../../auth/callback.ts";

export const handler = define.handlers({
  async POST(ctx) {
    const contentType = ctx.req.headers.get("content-type") || "";
    const isJsonRequest = contentType.includes("application/json");
    console.log("Content-Type:", contentType);
    console.log("Is JSON request:", isJsonRequest);
    if (!isJsonRequest) {
      return new Response(
        JSON.stringify({ error: "Content-Type must be application/json" }),
        {
          status: 400,
          headers: { "Content-Type": "application/json" },
        },
      );
    }

    try {
      const body = await ctx.req.json();
      const { balance, date, year: _year, month: _month } = body;

      // Validate required fields
      if (balance === undefined || date === undefined) {
        return new Response(
          JSON.stringify({ error: "Balance and date are required" }),
          {
            status: 400,
            headers: { "Content-Type": "application/json" },
          },
        );
      }

      // Get user data from session
      const stateData: SessionCookie = ctx.state.data;
      if (!stateData?.user_id) {
        return new Response(
          JSON.stringify({ error: "User not authenticated" }),
          {
            status: 401,
            headers: { "Content-Type": "application/json" },
          },
        );
      }

      // Convert date string to timestamp
      const balanceDate = MakeNewDate(date).getTime();

      // Update financial balance
      const updatedBalance = await upsertFinancialBalance(
        stateData.user_id,
        balance,
        balanceDate,
      );

      return new Response(
        JSON.stringify({
          success: true,
          data: updatedBalance,
        }),
        {
          status: 200,
          headers: { "Content-Type": "application/json" },
        },
      );
    } catch (error) {
      console.error("Error updating financial balance:", error);
      return new Response(
        JSON.stringify({
          error: "Internal server error",
          message: error instanceof Error ? error.message : "Unknown error",
        }),
        {
          status: 500,
          headers: { "Content-Type": "application/json" },
        },
      );
    }
  },
});