package com.example.dcav2gui;

import static com.example.dcav2gui.MainActivity.globalSettings;

import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;

import java.io.IOException;
import java.util.Locale;

import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

public class InstanceInterface {
    private static final String API_BASE_URL = globalSettings.apiUrl;
    private static final String API_KEY = globalSettings.apiKey;
    private static final OkHttpClient httpClient = new OkHttpClient();

    public static ProfitStatsData getProfitStatsData() throws IOException {
        // Construct the API request URL for stock quote
        Request stockRequest = new Request.Builder()
                .url(API_BASE_URL + "/statistics_server/combined_totals")
                .header("X-API-KEY", API_KEY)
                .build();

        try (Response statsResponse = httpClient.newCall(stockRequest).execute()) {
            if (!statsResponse.isSuccessful()) {
                throw new IOException("Unexpected code " + statsResponse);
            }
            String stockResponseBody = statsResponse.body().string();

            double todaysProfit = getTodaysProfit(stockResponseBody);
            double thisMonthProfit = getThisMonthsProfit(stockResponseBody);

            // Return the stock quote data
            return new ProfitStatsData(
                    todaysProfit,
                    thisMonthProfit
            );
        }
    }

    private static double getTodaysProfit(String jsonResponse) {
        try {
            // Parse the JSON response
            JsonElement jsonElement = JsonParser.parseString(jsonResponse);
            if (!jsonElement.isJsonObject()) {
                System.err.println("The parsed JSON response is not a JsonObject.");
                return 0.0;
            }
            JsonObject jsonObject = jsonElement.getAsJsonObject();
            if (jsonObject.has("combined")) {
                JsonArray combinedArray = jsonObject.get("combined").getAsJsonArray();
                return combinedArray.get(0).getAsDouble();
            } else {
                System.err.println("The parsed JSON response does not contain a 'combined' array.");
                return 0.0;
            }
        } catch (Exception e) {
            System.err.println("Error processing combined profit data: " + e.getMessage());
            return 0.0;
        }
    }

    private static double getThisMonthsProfit(String jsonResponse) {
        try {
            // Parse the JSON response
            JsonElement jsonElement = JsonParser.parseString(jsonResponse);
            if (!jsonElement.isJsonObject()) {
                System.err.println("The parsed JSON response is not a JsonObject.");
                return 0.0;
            }
            JsonObject jsonObject = jsonElement.getAsJsonObject();
            if (jsonObject.has("combined")) {
                JsonArray combinedArray = jsonObject.get("combined").getAsJsonArray();
                return combinedArray.get(1).getAsDouble();
            } else {
                System.err.println("The parsed JSON response does not contain a 'combined' array.");
                return 0.0;
            }
        } catch (Exception e) {
            System.err.println("Error processing combined profit data: " + e.getMessage());
            return 0.0;
        }
    }


    // Class to hold profits stats data
    public static class ProfitStatsData {
        private final double profitsToday;
        private final double profitsThisMonth;

        public ProfitStatsData(double profitsToday, double profitsThisMonth) {
            this.profitsToday = profitsToday;
            this.profitsThisMonth = profitsThisMonth;
        }

        // Getters
        public double getProfitsToday() { return profitsToday; }
        public double getProfitsThisMonth() { return profitsThisMonth; }
    }
}