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package it.niedermann.nextcloud.deck.ui.filter;
import static it.niedermann.nextcloud.deck.ui.branding.BrandingUtil.getSecondaryForegroundColorDependingOnTheme;
import android.app.Dialog;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import androidx.annotation.ColorInt;
import androidx.annotation.NonNull;
import androidx.core.content.ContextCompat;
import androidx.fragment.app.DialogFragment;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.ViewModelProvider;
import androidx.viewpager2.adapter.FragmentStateAdapter;
import androidx.viewpager2.widget.ViewPager2;
import com.google.android.material.dialog.MaterialAlertDialogBuilder;
import com.google.android.material.tabs.TabLayoutMediator;
import it.niedermann.android.util.ColorUtil;
import it.niedermann.nextcloud.deck.R;
import it.niedermann.nextcloud.deck.databinding.DialogFilterBinding;
import it.niedermann.nextcloud.deck.model.enums.EDueType;
import it.niedermann.nextcloud.deck.ui.branding.BrandedDialogFragment;
public class FilterDialogFragment extends BrandedDialogFragment {
private DialogFilterBinding binding;
private FilterViewModel filterViewModel;
private Drawable indicator;
private final static int[] tabTitles = new int[]{
R.string.filter_tags_title,
R.string.filter_user_title,
R.string.filter_duedate_title
};
@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final var context = requireContext();
indicator = ContextCompat.getDrawable(context, R.drawable.circle_grey600_8dp);
assert indicator != null;
indicator.setColorFilter(ContextCompat.getColor(context, R.color.defaultBrand), PorterDuff.Mode.SRC_ATOP);
filterViewModel = new ViewModelProvider(requireActivity()).get(FilterViewModel.class);
final var dialogBuilder = new MaterialAlertDialogBuilder(context);
binding = DialogFilterBinding.inflate(requireActivity().getLayoutInflater());
binding.viewPager.setAdapter(new TabsPagerAdapter(this));
binding.viewPager.setOffscreenPageLimit(tabTitles.length);
final var filterInformationDraft = filterViewModel.getFilterInformationDraft();
new TabLayoutMediator(binding.tabLayout, binding.viewPager, (tab, position) -> {
filterInformationDraft.observe(this, (draft) -> {
switch (position) {
case 0:
tab.setIcon(draft.getLabels().size() > 0 || draft.isNoAssignedLabel() ? indicator : null);
break;
case 1:
tab.setIcon(draft.getUsers().size() > 0 || draft.isNoAssignedUser() ? indicator : null);
break;
case 2:
tab.setIcon(draft.getDueType() != EDueType.NO_FILTER ? indicator : null);
break;
default:
throw new IllegalStateException("position must be between 0 and 2");
}
});
tab.setText(tabTitles[position]);
}).attach();
binding.viewPager.post(() -> {
binding.viewPager.setCurrentItem(filterViewModel.getCurrentFilterTab(), false);
binding.viewPager.registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() {
@Override
public void onPageSelected(int position) {
super.onPageSelected(position);
filterViewModel.setCurrentFilterTab(position);
}
});
});
filterViewModel.createFilterInformationDraft();
return dialogBuilder
.setTitle(R.string.simple_filter)
.setView(binding.getRoot())
.setNeutralButton(android.R.string.cancel, null)
.setNegativeButton(R.string.simple_clear, (a, b) -> filterViewModel.clearFilterInformation(false))
.setPositiveButton(R.string.simple_filter, (a, b) -> filterViewModel.publishFilterInformationDraft())
.create();
}
@Override
public void onDestroy() {
super.onDestroy();
this.binding = null;
}
public static DialogFragment newInstance() {
return new FilterDialogFragment();
}
@Override
public void applyBrand(int mainColor) {
@ColorInt final int finalMainColor = getSecondaryForegroundColorDependingOnTheme(binding.tabLayout.getContext(), mainColor);
final boolean contrastRatioIsSufficient = ColorUtil.INSTANCE.getContrastRatio(mainColor, ContextCompat.getColor(binding.tabLayout.getContext(), R.color.primary)) > 1.7d;
binding.tabLayout.setSelectedTabIndicatorColor(contrastRatioIsSufficient ? mainColor : finalMainColor);
indicator.setColorFilter(contrastRatioIsSufficient ? mainColor : finalMainColor, PorterDuff.Mode.SRC_ATOP);
}
private static class TabsPagerAdapter extends FragmentStateAdapter {
TabsPagerAdapter(final Fragment f) {
super(f);
}
@NonNull
@Override
public Fragment createFragment(int position) {
switch (position) {
case 0:
return new FilterLabelsFragment();
case 1:
return new FilterUserFragment();
case 2:
return new FilterDueTypeFragment();
default:
throw new IllegalArgumentException("position must be between 0 and 2");
}
}
@Override
public int getItemCount() {
return tabTitles.length;
}
}
}
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