using System;
using System.Collections;
using System.Collections.Generic;
using System.Threading.Tasks;
using Google;
using Newtonsoft.Json;
using UnityEngine;
using UnityEngine.Networking;

public static class DataManager{
    public const string API_ENDPOINT = "http://vps.playpoolstudios.com/faucet/golf/api/";
    private const string key = "#2CuV1Bit^S!sW1ZcgRv8BhrO";
    public static UserData userData{get; private set;}
    public static bool isLogged{ get{return userData != null;}}

    public static void Signout(){
        GoogleSignIn.DefaultInstance.SignOut();
        PlayerPrefs.DeleteAll();
        PlayerPrefs.Save();

        userData = null;
    }


    public static async Task<int> Login(string username,string password){
        WWWForm form = new WWWForm();
        form.AddField("username", username);
        form.AddField("password", password);
        form.AddField("key", key);

    
        
        using (UnityWebRequest request = UnityWebRequest.Post(API_ENDPOINT + "login.php", form))
        {
            var operation = request.SendWebRequest();
            while (!operation.isDone)
            {
                await Task.Yield();
            }

            Debug.Log("login response: " +request.downloadHandler.text);

            if(request.downloadHandler.text.Contains("{")){
                try{
                    userData = JsonConvert.DeserializeObject<UserData>(request.downloadHandler.text);
                    Debug.Log("Success parsing userdata");

                    PlayerPrefs.SetString("username", username);
                    PlayerPrefs.SetString("password", password);
                    PlayerPrefs.Save();

                }catch(Exception e){
                    Debug.Log("Error parsing userdata");
                }
            }else{
                if(request.downloadHandler.text == "0"){
                    userData = new UserData(){username = username};
                    Debug.Log("Created local account");
                }else{
                    MessageBox.ShowMessage("Error logging in, Server said\n" +request.downloadHandler.text);
                    return 1;
                }
            }
                      
        }

        LoadingScreen.LoadLevel("MainMenu");
        return 0;

    }

    public static async void GoogleLogin(string username){
        WWWForm form = new WWWForm();
        form.AddField("username", username);
        form.AddField("key", key);

       using (UnityWebRequest request = UnityWebRequest.Post(API_ENDPOINT + "google_login.php", form))
        {
            var operation = request.SendWebRequest();
            while (!operation.isDone)
            {
                await Task.Yield();
            }
            Debug.Log("glogin response: " +request.downloadHandler.text);
            MessageBox.ShowMessage(request.downloadHandler.text);

            if(request.downloadHandler.text.Contains("{")){
                try{
                    userData = JsonConvert.DeserializeObject<UserData>(request.downloadHandler.text);
                    if(userData == null){
                        throw new NullReferenceException();
                    }
                    if(userData.username.Length < 3){
                        throw new IndexOutOfRangeException();
                    }
                    Debug.Log("Success parsing userdata");
                    
                    PlayerPrefs.SetString("username", username);
                    PlayerPrefs.SetString("password", username);
                    PlayerPrefs.Save();
                }catch(Exception e){
                    Debug.Log("Error parsing userdata");
                }
            }else{
                if(request.downloadHandler.text == "0"){
                    userData = new UserData(){username = username};
                }else{
                    MessageBox.ShowMessage("Error logging in, Server said\n" +request.downloadHandler.text);
                    return;
                }
            }
                      
        }

        LoadingScreen.LoadLevel("MainMenu");
    }

    public static async void AddScores(int amount){
        WWWForm form = new WWWForm();

        Debug.Log(userData.ToString());

        form.AddField("username", userData.username);
        form.AddField("password", userData.password);
        form.AddField("amount", amount);
        form.AddField("key", key);

       using (UnityWebRequest request = UnityWebRequest.Post(API_ENDPOINT + "add_scores.php", form))
        {
            var operation = request.SendWebRequest();
            while (!operation.isDone)
            {
                await Task.Yield();
            }
            Debug.Log("add scores response: " +request.downloadHandler.text);
            
            if(request.downloadHandler.text.Contains("{")){
                try{
                    userData = JsonConvert.DeserializeObject<UserData>(request.downloadHandler.text);
                    if(userData == null){
                        throw new NullReferenceException();
                    }
                    if(userData.username.Length < 3){
                        throw new IndexOutOfRangeException();
                    }
                    Debug.Log("Success parsing userdata");


                }catch(Exception e){
                    Debug.Log("Error parsing userdata");
                }
            }else{
                
                MessageBox.ShowMessage("Error Updating scores, Server said\n" +request.downloadHandler.text);
                
            }
                      
        }

        LoadingScreen.LoadLevel("MainMenu");
    }

}

[System.Serializable]
public class UserData{
    public int id;
    public string username;
    public string password;
    public int score;
    public int TopScore;


    public override string ToString()
    {
        return JsonConvert.SerializeObject(this);
    }
}