package com.example.ai_sdk_test;

import android.annotation.SuppressLint;
import android.content.Context;
import android.webkit.JavascriptInterface;
import android.webkit.WebView;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {
    public WebView webview;

    @SuppressLint("SetJavaScriptEnabled")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        this.webview = this.findViewById(R.id.webview_1);
        this.webview.getSettings().setJavaScriptEnabled(true);
        this.webview.addJavascriptInterface(new WebAppInterface(this), "NativeApp");
        this.webview.loadUrl("file:///android_asset/index.html");
    }
}

class WebAppInterface {
    Context mContext;

    /**
     * Instantiate the interface and set the context
     */
    WebAppInterface(Context c) {
        mContext = c;
    }

    /**
     * Show a toast from the web page
     */
    @JavascriptInterface
    public void getFrame(int maxWidth, int maxHeight) {
        /*
            1) Retrieve a frame from camera
            2) resize it to maxWidth x maxHeight (mantaining the aspect ration)
            3) Convert the frame to Base64
            4) return the Base64 String
         */
        return res;
    }

    @JavascriptInterface
    /**
     * @type: String-enum in ["AGE","GENDER","EMOTION","FEATURES","POSE","AROUSAL_VALENCE","ATTENTION"]
     * @value: Json-stringified of of the result
     */
    public void onData(String type, String value) {
        /*
            send data to the serve
         */
    }
}