using UnityEngine;
using Singular;
using System.Collections.Generic;

public class ReferralManager : MonoBehaviour
{
    public void ShareReferralLink()
    {
        // Create custom parameters for the link
        Dictionary<string, string> parameters = new Dictionary<string, string>()
        {
            { "channel", "sms" },
            { "campaign_id", "summer_promo_2025" },
            { "referral_type", "friend_invite" }
        };

        // Generate the short referrer link
        SingularSDK.CreateReferrerShortLink(
            "https://sample.sng.link/D52wc/cuvk?pcn=test",  // Base Singular Link
            "John Doe",                                      // Referrer name
            "user_12345",                                    // Referrer ID
            parameters,                                      // Custom parameters
            OnShortLinkCreated                               // Callback
        );
    }

    // Callback method that receives the short link URL or error
    private void OnShortLinkCreated(string shortLinkURL, string error)
    {
        if (!string.IsNullOrEmpty(shortLinkURL))
        {
            // Success - short link was created
            Debug.Log($"Generated short link: {shortLinkURL}");

            // Share the link using your preferred sharing method
            ShareLink(shortLinkURL);
        }
        else if (!string.IsNullOrEmpty(error))
        {
            // Error occurred during link creation
            Debug.LogError($"Error creating short link: {error}");

            // Handle error - retry or show user feedback
            ShowErrorMessage("Failed to create share link. Please try again.");
        }
    }

    private void ShareLink(string shortLinkURL)
    {
        // Example: Use Unity's native share functionality
        string shareMessage = $"Join me on this awesome app! {shortLinkURL}";

        #if UNITY_ANDROID
        ShareOnAndroid(shareMessage);
        #elif UNITY_IOS
        ShareOnIOS(shareMessage);
        #else
        // Fallback: Copy to clipboard
        GUIUtility.systemCopyBuffer = shortLinkURL;
        Debug.Log("Link copied to clipboard");
        #endif
    }

    #if UNITY_ANDROID
    private void ShareOnAndroid(string message)
    {
        using (AndroidJavaClass intentClass = new AndroidJavaClass("android.content.Intent"))
        using (AndroidJavaObject intentObject = new AndroidJavaObject("android.content.Intent"))
        {
            intentObject.Call<AndroidJavaObject>("setAction", intentClass.GetStatic<string>("ACTION_SEND"));
            intentObject.Call<AndroidJavaObject>("setType", "text/plain");
            intentObject.Call<AndroidJavaObject>("putExtra", intentClass.GetStatic<string>("EXTRA_TEXT"), message);

            using (AndroidJavaClass unity = new AndroidJavaClass("com.unity3d.player.UnityPlayer"))
            using (AndroidJavaObject currentActivity = unity.GetStatic<AndroidJavaObject>("currentActivity"))
            {
                AndroidJavaObject chooser = intentClass.CallStatic<AndroidJavaObject>(
                    "createChooser", intentObject, "Share via"
                );
                currentActivity.Call("startActivity", chooser);
            }
        }
    }
    #endif

    #if UNITY_IOS
    private void ShareOnIOS(string message)
    {
        // iOS native sharing implementation
        // You can use a plugin like NativeShare or implement UIActivityViewController
        Debug.Log($"Sharing on iOS: {message}");
    }
    #endif

    private void ShowErrorMessage(string message)
    {
        // Your UI error display logic
        Debug.LogWarning(message);
    }
}