import { serve } from "https://deno.land/std@0.168.0/http/server.ts";
import { mydb } from "../../lib/mySupabase.ts";
import { corsHeaders, jsonResponse, errorResponse } from "../../lib/utils.ts";

serve(async (req) => {
  if (req.method === "OPTIONS") {
    return new Response("ok", { status: 200, headers: corsHeaders() });
  }

  try {
    if (req.method !== "POST") {
      return errorResponse("Method not allowed", 405);
    }

    const body = await req.json();
    const {
      patient_id,
      external_patient_id,
      points_earned,
      event_type,
      reason,
    } = body;

    // Usar external_patient_id como referência principal
    const targetPatientId = external_patient_id || patient_id;

    if (!targetPatientId) {
      return errorResponse(
        "patient_id or external_patient_id is required",
        400
      );
    }

    const res = await mydb
      .from("patient_rewards")
      .select("*")
      .eq("external_patient_id", targetPatientId)
      .single();

    const current = res.data || { points: 0, level: 1 };
    const newPoints = current.points + points_earned;
    const newLevel = Math.floor(newPoints / 100) + 1;

    if (res.data) {
      // Update existente
      await mydb
        .from("patient_rewards")
        .update({ points: newPoints, level: newLevel })
        .eq("external_patient_id", targetPatientId);
    } else {
      // Insert novo
      await mydb.from("patient_rewards").insert({
        external_patient_id: targetPatientId,
        points: newPoints,
        level: newLevel,
      });
    }

    await mydb.from("patient_journey").insert({
      external_patient_id: targetPatientId,
      event_type: event_type || "points_earned",
      event_data: { points_earned, reason },
      points_earned,
    });

    return jsonResponse({
      success: true,
      new_points: newPoints,
      new_level: newLevel,
      level_up: current.level !== newLevel,
    });
  } catch (error: unknown) {
    const err = error as Error;
    return errorResponse(err.message, 500);
  }
});