Aegis/app/src/main/java/com/beemdevelopment/aegis/ui/AboutActivity.java

package com.beemdevelopment.aegis.ui;

import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.MenuItem;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

import androidx.annotation.AttrRes;
import androidx.annotation.StringRes;
import androidx.core.view.LayoutInflaterCompat;

import com.beemdevelopment.aegis.BuildConfig;
import com.beemdevelopment.aegis.R;
import com.beemdevelopment.aegis.Theme;
import com.beemdevelopment.aegis.helpers.ThemeHelper;
import com.beemdevelopment.aegis.licenses.GlideLicense;
import com.beemdevelopment.aegis.licenses.ProtobufLicense;
import com.mikepenz.iconics.context.IconicsLayoutInflater2;

import de.psdev.licensesdialog.LicenseResolver;
import de.psdev.licensesdialog.LicensesDialog;

public class AboutActivity extends AegisActivity {

    private static String GITHUB = "https://github.com/beemdevelopment/Aegis";
    private static String WEBSITE_ALEXANDER = "https://alexbakker.me";
    private static String GITHUB_MICHAEL = "https://github.com/michaelschattgen";

    private static String MAIL_BEEMDEVELOPMENT = "beemdevelopment@gmail.com";
    private static String WEBSITE_BEEMDEVELOPMENT = "https://beem.dev/";
    private static String PLAYSTORE_BEEMDEVELOPMENT = "https://play.google.com/store/apps/details?id=com.beemdevelopment.aegis";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        LayoutInflaterCompat.setFactory2(getLayoutInflater(), new IconicsLayoutInflater2(getDelegate()));

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_about);

        if (getSupportActionBar() != null) {
            getSupportActionBar().setDisplayHomeAsUpEnabled(true);
            getSupportActionBar().setDisplayShowHomeEnabled(true);
        }

        View btnLicenses = findViewById(R.id.btn_licenses);
        btnLicenses.setOnClickListener(v -> showLicenseDialog());

        TextView appVersion = findViewById(R.id.app_version);
        appVersion.setText(getCurrentAppVersion());

        View btnAppVersion = findViewById(R.id.btn_app_version);
        btnAppVersion.setOnClickListener(v -> {
            copyToClipboard(getCurrentAppVersion(), R.string.version_copied);
        });

        View btnGithub = findViewById(R.id.btn_github);
        btnGithub.setOnClickListener(v -> openUrl(GITHUB));

        View btnAlexander = findViewById(R.id.btn_alexander);
        btnAlexander.setOnClickListener(v -> openUrl(WEBSITE_ALEXANDER));

        View btnMichael = findViewById(R.id.btn_michael);
        btnMichael.setOnClickListener(v -> openUrl(GITHUB_MICHAEL));

        View btnMail = findViewById(R.id.btn_email);
        btnMail.setOnClickListener(v -> openMail(MAIL_BEEMDEVELOPMENT));

        View btnWebsite = findViewById(R.id.btn_website);
        btnWebsite.setOnClickListener(v -> openUrl(WEBSITE_BEEMDEVELOPMENT));

        View btnRate = findViewById(R.id.btn_rate);
        btnRate.setOnClickListener(v -> openUrl(PLAYSTORE_BEEMDEVELOPMENT ));

        View btnChangelog = findViewById(R.id.btn_changelog);
        btnChangelog.setOnClickListener(v -> {
            ChangelogDialog.create().setTheme(getConfiguredTheme()).show(getSupportFragmentManager(), "CHANGELOG_DIALOG");
        });
    }

    private static String getCurrentAppVersion() {
        if (BuildConfig.DEBUG) {
            return String.format("%s-%s (%s)", BuildConfig.VERSION_NAME, BuildConfig.GIT_HASH, BuildConfig.GIT_BRANCH);
        }

        return BuildConfig.VERSION_NAME;
    }

    private void openUrl(String url) {
        Intent browserIntent = new Intent(Intent.ACTION_VIEW);
        browserIntent.setData(Uri.parse(url));
        browserIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

        startActivity(browserIntent);
    }

    private void copyToClipboard(String text, @StringRes int messageId) {
        ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
        ClipData data = ClipData.newPlainText("text/plain", text);
        clipboard.setPrimaryClip(data);
        Toast.makeText(this, messageId, Toast.LENGTH_SHORT).show();
    }

    private void openMail(String mailaddress) {
        Intent mailIntent = new Intent(Intent.ACTION_SENDTO);
        mailIntent.setData(Uri.parse("mailto:" + mailaddress));
        mailIntent.putExtra(Intent.EXTRA_EMAIL, mailaddress);
        mailIntent.putExtra(Intent.EXTRA_SUBJECT, R.string.app_name_full);

        startActivity(Intent.createChooser(mailIntent, this.getString(R.string.email)));
    }

    private void showLicenseDialog() {
        String stylesheet = getString(R.string.custom_notices_format_style);
        int backgroundColorResource = getConfiguredTheme() == Theme.AMOLED ? R.attr.cardBackgroundFocused : R.attr.cardBackground;
        String backgroundColor = getThemeColorAsHex(backgroundColorResource);
        String textColor = getThemeColorAsHex(R.attr.primaryText);
        String licenseColor = getThemeColorAsHex(R.attr.cardBackgroundFocused);
        String linkColor = getThemeColorAsHex(R.attr.colorAccent);

        stylesheet = String.format(stylesheet, backgroundColor, textColor, licenseColor, linkColor);

        LicenseResolver.registerLicense(new GlideLicense());
        LicenseResolver.registerLicense(new ProtobufLicense());

        new LicensesDialog.Builder(this)
                .setNotices(R.raw.notices)
                .setTitle(R.string.licenses)
                .setNoticesCssStyle(stylesheet)
                .setIncludeOwnLicense(true)
                .build()
                .show();
    }

    private String getThemeColorAsHex(@AttrRes int attributeId) {
        return String.format("%06X", (0xFFFFFF & ThemeHelper.getThemeColor(attributeId, getTheme())));
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case android.R.id.home:
                onBackPressed();
                break;
            default:
                return super.onOptionsItemSelected(item);
        }

        return true;
    }
}