package nodomain.freeyourgadget.gadgetbridge.womp;

import android.Manifest;
import android.annotation.SuppressLint;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Build;
import android.os.Bundle;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;

import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;

import nodomain.freeyourgadget.gadgetbridge.R;

public class WompWebActivity extends AppCompatActivity implements WompJsBridge.Host {
    public static final String EXTRA_PAGE = "page";
    private static final int REQ_SCAN = 7101;
    private static final int REQ_PERM = 7102;

    private WebView webView;
    private String pendingScanCb;
    private long lastBackPressedAt;

    public static Intent open(android.content.Context ctx, String page) {
        Intent i = new Intent(ctx, WompWebActivity.class);
        i.putExtra(EXTRA_PAGE, page);
        return i;
    }

    @SuppressLint("SetJavaScriptEnabled")
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        setTheme(R.style.GadgetbridgeTheme_NoActionBar);
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_womp_web);
        webView = findViewById(R.id.womp_webview);
        WebSettings s = webView.getSettings();
        s.setJavaScriptEnabled(true);
        s.setDomStorageEnabled(true);
        s.setAllowFileAccess(true);
        s.setAllowContentAccess(true);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            s.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
        }
        webView.setWebViewClient(new WebViewClient() {
            @Override
            public void onPageFinished(WebView view, String url) {
                if (url != null && (url.endsWith("home.html") || url.endsWith("login.html"))) {
                    view.clearHistory();
                }
            }
        });
        webView.setWebChromeClient(new WebChromeClient());
        webView.addJavascriptInterface(new WompJsBridge(this, this), "Womp");

        String page = getIntent().getStringExtra(EXTRA_PAGE);
        if (page == null || page.length() == 0) {
            page = WompSession.isLoggedIn(this) ? "home.html" : "login.html";
        }
        webView.loadUrl("file:///android_asset/womp/" + page);
        ensureRuntimePermissions();
    }

    private void ensureRuntimePermissions() {
        java.util.ArrayList<String> need = new java.util.ArrayList<>();
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
            need.add(Manifest.permission.CAMERA);
        }
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            need.add(Manifest.permission.ACCESS_FINE_LOCATION);
        }
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU
                && ContextCompat.checkSelfPermission(this, Manifest.permission.POST_NOTIFICATIONS) != PackageManager.PERMISSION_GRANTED) {
            need.add(Manifest.permission.POST_NOTIFICATIONS);
        }
        if (!need.isEmpty()) {
            ActivityCompat.requestPermissions(this, need.toArray(new String[0]), REQ_PERM);
        }
    }

    @Override
    public void scan(String callbackId) {
        pendingScanCb = callbackId;
        startActivityForResult(new Intent(this, WompScanActivity.class), REQ_SCAN);
    }

    @Override
    public void closePage() {
        finish();
    }

    @Override
    public void onLoggedIn() {
        WompKeepAliveService.start(this);
        if (webView != null) {
            webView.loadUrl("file:///android_asset/womp/home.html");
        }
    }

    @Override
    public void onLogout() {
        if (webView != null) {
            webView.loadUrl("file:///android_asset/womp/login.html");
        }
    }

    @Override
    public void evalJs(String script) {
        if (webView != null) {
            webView.evaluateJavascript(script, null);
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == REQ_SCAN && pendingScanCb != null) {
            String code = resultCode == RESULT_OK && data != null ? data.getStringExtra(WompScanActivity.EXTRA_CODE) : "";
            String script = "window.__wompCb && window.__wompCb("
                    + org.json.JSONObject.quote(pendingScanCb) + ",true,"
                    + org.json.JSONObject.quote(code == null ? "" : code) + ")";
            evalJs(script);
            pendingScanCb = null;
        }
    }

    @Override
    public void onBackPressed() {
        if (webView != null && webView.canGoBack()) {
            webView.goBack();
            return;
        }
        if (!isTaskRoot()) {
            super.onBackPressed();
            return;
        }
        long now = System.currentTimeMillis();
        if (now - lastBackPressedAt < 2000) {
            finishAffinity();
            return;
        }
        lastBackPressedAt = now;
        Toast.makeText(this, R.string.womp_press_again_to_exit, Toast.LENGTH_SHORT).show();
    }
}