package com.cappielloantonio.tempo.widget;

import android.appwidget.AppWidgetManager;
import android.content.ComponentName;
import android.content.Context;
import android.graphics.Bitmap;
import android.text.TextUtils;
import android.graphics.drawable.Drawable;
import com.bumptech.glide.request.target.CustomTarget;
import com.bumptech.glide.request.transition.Transition;
import com.cappielloantonio.tempo.glide.CustomGlideRequest;
import com.cappielloantonio.tempo.R;
import androidx.media3.session.MediaController;
import androidx.media3.session.SessionToken;
import com.cappielloantonio.tempo.service.MediaService;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.MoreExecutors;
import java.util.concurrent.ExecutionException;

public final class WidgetUpdateManager {

  public static void updateFromState(Context ctx,
                                     String title,
                                     String artist,
                                     Bitmap art,
                                     boolean playing) {
    if (TextUtils.isEmpty(title)) title = ctx.getString(R.string.widget_not_playing);
    if (TextUtils.isEmpty(artist)) artist = ctx.getString(R.string.widget_placeholder_subtitle);

    AppWidgetManager mgr = AppWidgetManager.getInstance(ctx);
    int[] ids = mgr.getAppWidgetIds(new ComponentName(ctx, WidgetProvider4x1.class));
    for (int id : ids) {
      android.widget.RemoteViews rv = choosePopulate(ctx, title, artist, art, playing, id);
      WidgetProvider.attachIntents(ctx, rv, id);
      mgr.updateAppWidget(id, rv);
    }
  }

  public static void pushNow(Context ctx) {
    AppWidgetManager mgr = AppWidgetManager.getInstance(ctx);
    int[] ids = mgr.getAppWidgetIds(new ComponentName(ctx, WidgetProvider4x1.class));
    for (int id : ids) {
      android.widget.RemoteViews rv = chooseBuild(ctx, id);
      WidgetProvider.attachIntents(ctx, rv, id);
      mgr.updateAppWidget(id, rv);
    }
  }

  public static void updateFromState(Context ctx,
                                     String title,
                                     String artist,
                                     String coverArtId,
                                     boolean playing) {
    final Context appCtx = ctx.getApplicationContext();
    final String t = TextUtils.isEmpty(title) ? appCtx.getString(R.string.widget_not_playing) : title;
    final String a = TextUtils.isEmpty(artist) ? appCtx.getString(R.string.widget_placeholder_subtitle) : artist;
    final boolean p = playing;

    if (!TextUtils.isEmpty(coverArtId)) {
      CustomGlideRequest.loadAlbumArtBitmap(
          appCtx,
          coverArtId,
          com.cappielloantonio.tempo.util.Preferences.getImageSize(),
          new CustomTarget<Bitmap>() {
            @Override public void onResourceReady(Bitmap resource, Transition<? super Bitmap> transition) {
              AppWidgetManager mgr = AppWidgetManager.getInstance(appCtx);
              int[] ids = mgr.getAppWidgetIds(new ComponentName(appCtx, WidgetProvider4x1.class));
              for (int id : ids) {
                android.widget.RemoteViews rv = choosePopulate(appCtx, t, a, resource, p, id);
                WidgetProvider.attachIntents(appCtx, rv, id);
                mgr.updateAppWidget(id, rv);
              }
            }

            @Override public void onLoadCleared(Drawable placeholder) {
              AppWidgetManager mgr = AppWidgetManager.getInstance(appCtx);
              int[] ids = mgr.getAppWidgetIds(new ComponentName(appCtx, WidgetProvider4x1.class));
              for (int id : ids) {
                android.widget.RemoteViews rv = choosePopulate(appCtx, t, a, null, p, id);
                WidgetProvider.attachIntents(appCtx, rv, id);
                mgr.updateAppWidget(id, rv);
              }
            }
          }
      );
    } else {
      AppWidgetManager mgr = AppWidgetManager.getInstance(appCtx);
      int[] ids = mgr.getAppWidgetIds(new ComponentName(appCtx, WidgetProvider4x1.class));
      for (int id : ids) {
        android.widget.RemoteViews rv = choosePopulate(appCtx, t, a, null, p, id);
        WidgetProvider.attachIntents(appCtx, rv, id);
        mgr.updateAppWidget(id, rv);
      }
    }
  }

  public static void refreshFromController(Context ctx) {
    final Context appCtx = ctx.getApplicationContext();
    SessionToken token = new SessionToken(appCtx, new ComponentName(appCtx, MediaService.class));
    ListenableFuture<MediaController> future = new MediaController.Builder(appCtx, token).buildAsync();
    future.addListener(() -> {
      try {
        if (!future.isDone()) return;
        MediaController c = future.get();
        androidx.media3.common.MediaItem mi = c.getCurrentMediaItem();
        String title = null, artist = null, coverId = null;
        if (mi != null && mi.mediaMetadata != null) {
          if (mi.mediaMetadata.title != null) title = mi.mediaMetadata.title.toString();
          if (mi.mediaMetadata.artist != null) artist = mi.mediaMetadata.artist.toString();
          if (mi.mediaMetadata.extras != null) {
            if (title == null) title = mi.mediaMetadata.extras.getString("title");
            if (artist == null) artist = mi.mediaMetadata.extras.getString("artist");
            coverId = mi.mediaMetadata.extras.getString("coverArtId");
          }
        }
        updateFromState(appCtx,
            title != null ? title : appCtx.getString(R.string.widget_not_playing),
            artist != null ? artist : appCtx.getString(R.string.widget_placeholder_subtitle),
            coverId,
            c.isPlaying());
        c.release();
      } catch (ExecutionException | InterruptedException ignored) {
      }
    }, MoreExecutors.directExecutor());
  }

  public static android.widget.RemoteViews chooseBuild(Context ctx, int appWidgetId) {
    if (isLarge(ctx, appWidgetId)) return WidgetViewsFactory.buildLarge(ctx);
    return WidgetViewsFactory.buildCompact(ctx);
  }

  private static android.widget.RemoteViews choosePopulate(Context ctx, String title, String artist, Bitmap art, boolean playing, int appWidgetId) {
    if (isLarge(ctx, appWidgetId)) return WidgetViewsFactory.populateLarge(ctx, title, artist, art, playing);
    return WidgetViewsFactory.populate(ctx, title, artist, art, playing);
  }

  private static boolean isLarge(Context ctx, int appWidgetId) {
    AppWidgetManager mgr = AppWidgetManager.getInstance(ctx);
    android.os.Bundle opts = mgr.getAppWidgetOptions(appWidgetId);
    int minH = opts != null ? opts.getInt(AppWidgetManager.OPTION_APPWIDGET_MIN_HEIGHT) : 0;
    int threshold = ctx.getResources().getInteger(com.cappielloantonio.tempo.R.integer.widget_large_min_height_dp);
    return minH >= threshold; // dp threshold for 2-row height
  }

  
}