package com.example.dutest.stub;

import android.app.Activity;
import android.content.pm.PackageInfo;
import android.os.Bundle;
import android.view.Gravity;
import android.widget.TextView;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

/**
 * The whole of every test app: one screen naming which app this is and when
 * the installed copy landed.
 *
 * One class shared by all of them rather than one per project, because what
 * differs between the test projects is what Dev Updater has to *do* with
 * them -- how many variants they build, whether the build fails, whether
 * they declare a service -- and none of that is a difference in the app.
 * The manifest names this class fully qualified, so each APK can carry its
 * own application id while the code keeps one package.
 *
 * It shows lastUpdateTime deliberately: that is the exact value Dev
 * Updater's freshness check compares an APK's mtime against, so the screen
 * shows what the card is reasoning about rather than a separate version
 * string that could agree with it by luck.
 */
public class StubActivity extends Activity {
    @Override
    protected void onCreate(Bundle state) {
        super.onCreate(state);
        TextView view = new TextView(this);
        view.setGravity(Gravity.CENTER);
        view.setTextSize(20f);
        view.setLineSpacing(0f, 1.3f);
        view.setPadding(64, 64, 64, 64);
        // Catppuccin Mocha Base and Text, matching the updater's own theme
        // so a screenshot of one does not look like a different machine.
        view.setBackgroundColor(0xFF1E1E2E);
        view.setTextColor(0xFFCDD6F4);
        view.setText(describe());
        setContentView(view);
    }

    private String describe() {
        CharSequence label = getApplicationInfo().loadLabel(getPackageManager());
        return label + "\n\n" + getPackageName() + "\n\ninstalled " + installedAt();
    }

    /**
     * When the package manager says this copy was installed, or why that
     * could not be read -- never a stand-in that reads like an answer.
     */
    private String installedAt() {
        try {
            PackageInfo info = getPackageManager().getPackageInfo(getPackageName(), 0);
            return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.US)
                    .format(new Date(info.lastUpdateTime));
        } catch (Exception failure) {
            return "unknown (" + failure.getClass().getSimpleName() + ")";
        }
    }
}