package org.mian.gitnex.adapters;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.Typeface;
import android.os.Handler;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.HorizontalScrollView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.core.content.res.ResourcesCompat;
import androidx.core.text.HtmlCompat;
import androidx.recyclerview.widget.RecyclerView;
import com.amulyakhare.textdrawable.TextDrawable;
import com.vdurmont.emoji.EmojiParser;
import org.gitnex.tea4j.v2.models.Issue;
import org.mian.gitnex.R;
import org.mian.gitnex.activities.IssueDetailActivity;
import org.mian.gitnex.activities.ProfileActivity;
import org.mian.gitnex.activities.RepoDetailActivity;
import org.mian.gitnex.clients.PicassoService;
import org.mian.gitnex.helpers.*;
import org.mian.gitnex.helpers.contexts.IssueContext;
import org.ocpsoft.prettytime.PrettyTime;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.List;
import java.util.Locale;

/**
 * @author M M Arif
 */

public class IssuesAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {

	private final Context context;
	TinyDB tinyDb;
	private List<Issue> issuesList;
	private Runnable loadMoreListener;
	private boolean isLoading = false, isMoreDataAvailable = true;

	public IssuesAdapter(Context ctx, List<Issue> issuesListMain) {

		this.context = ctx;
		this.issuesList = issuesListMain;
		tinyDb = TinyDB.getInstance(context);
	}

	@NonNull
	@Override
	public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
		LayoutInflater inflater = LayoutInflater.from(context);
		return new IssuesHolder(inflater.inflate(R.layout.list_issues, parent, false));
	}

	@Override
	public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) {

		if(position >= getItemCount() - 1 && isMoreDataAvailable && !isLoading && loadMoreListener != null) {
			isLoading = true;
			loadMoreListener.run();
		}

		((IssuesHolder) holder).bindData(issuesList.get(position));
	}

	@Override
	public int getItemViewType(int position) {
		return position;
	}

	@Override
	public int getItemCount() {

		return issuesList.size();
	}

	public void setMoreDataAvailable(boolean moreDataAvailable) {
		isMoreDataAvailable = moreDataAvailable;
	}

	@SuppressLint("NotifyDataSetChanged")
	public void notifyDataChanged() {
		notifyDataSetChanged();
		isLoading = false;
	}

	public void setLoadMoreListener(Runnable loadMoreListener) {
		this.loadMoreListener = loadMoreListener;
	}

	public void updateList(List<Issue> list) {
		issuesList = list;
		notifyDataChanged();
	}

	class IssuesHolder extends RecyclerView.ViewHolder {

		private final ImageView issueAssigneeAvatar;
		private final TextView issueTitle;
		private final TextView issueCreatedTime;
		private final TextView issueCommentsCount;
		private final HorizontalScrollView labelsScrollViewWithText;
		private final LinearLayout frameLabels;
		private final HorizontalScrollView labelsScrollViewDots;
		private final LinearLayout frameLabelsDots;
		private Issue issueObject;

		IssuesHolder(View itemView) {

			super(itemView);
			issueAssigneeAvatar = itemView.findViewById(R.id.assigneeAvatar);
			issueTitle = itemView.findViewById(R.id.issueTitle);
			issueCommentsCount = itemView.findViewById(R.id.issueCommentsCount);
			issueCreatedTime = itemView.findViewById(R.id.issueCreatedTime);
			labelsScrollViewWithText = itemView.findViewById(R.id.labelsScrollViewWithText);
			frameLabels = itemView.findViewById(R.id.frameLabels);
			labelsScrollViewDots = itemView.findViewById(R.id.labelsScrollViewDots);
			frameLabelsDots = itemView.findViewById(R.id.frameLabelsDots);

			new Handler().postDelayed(() -> {
				if(!AppUtil.checkGhostUsers(issueObject.getUser().getLogin())) {

					issueAssigneeAvatar.setOnLongClickListener(loginId -> {
						AppUtil.copyToClipboard(context, issueObject.getUser().getLogin(), context.getString(R.string.copyLoginIdToClipBoard, issueObject.getUser().getLogin()));
						return true;
					});

					issueAssigneeAvatar.setOnClickListener(v -> {
						Intent intent = new Intent(context, ProfileActivity.class);
						intent.putExtra("username", issueObject.getUser().getLogin());
						context.startActivity(intent);
					});
				}
			}, 500);
		}

		@SuppressLint("SetTextI18n")
		void bindData(Issue issue) {

			Locale locale = context.getResources().getConfiguration().locale;
			String timeFormat = tinyDb.getString("dateFormat", "pretty");

			int imgRadius = AppUtil.getPixelsFromDensity(context, 3);

			PicassoService.getInstance(context).get().load(issue.getUser().getAvatarUrl()).placeholder(R.drawable.loader_animated).transform(new RoundedTransformation(imgRadius, 0)).resize(120, 120).centerCrop()
				.into(issueAssigneeAvatar);

			String issueNumber_ = "<font color='" + ResourcesCompat.getColor(context.getResources(), R.color.lightGray, null) + "'>" + context.getResources().getString(R.string.hash) + issue.getNumber() + "</font>";
			issueTitle.setText(HtmlCompat.fromHtml(issueNumber_ + " " + EmojiParser.parseToUnicode(issue.getTitle()), HtmlCompat.FROM_HTML_MODE_LEGACY));

			this.issueObject = issue;
			this.issueCommentsCount.setText(String.valueOf(issue.getComments()));

			Intent intentIssueDetail = new IssueContext(issueObject, ((RepoDetailActivity) context).repository).getIntent(context, IssueDetailActivity.class);

			itemView.setOnClickListener(layoutView -> context.startActivity(intentIssueDetail));
			frameLabels.setOnClickListener(v -> context.startActivity(intentIssueDetail));
			frameLabelsDots.setOnClickListener(v -> context.startActivity(intentIssueDetail));

			LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
			params.setMargins(0, 0, 15, 0);

			if(issue.getLabels() != null) {

				if(!tinyDb.getBoolean("showLabelsInList", false)) { // default

					labelsScrollViewWithText.setVisibility(View.GONE);
					labelsScrollViewDots.setVisibility(View.VISIBLE);
					frameLabelsDots.removeAllViews();

					for(int i = 0; i < issue.getLabels().size(); i++) {

						String labelColor = issue.getLabels().get(i).getColor();
						int color = Color.parseColor("#" + labelColor);

						ImageView labelsView = new ImageView(context);
						frameLabelsDots.setOrientation(LinearLayout.HORIZONTAL);
						frameLabelsDots.setGravity(Gravity.START | Gravity.TOP);
						labelsView.setLayoutParams(params);

						TextDrawable drawable = TextDrawable.builder().beginConfig().useFont(Typeface.DEFAULT).width(54).height(54).endConfig().buildRound("", color);

						labelsView.setImageDrawable(drawable);
						frameLabelsDots.addView(labelsView);
					}
				}
				else {

					labelsScrollViewDots.setVisibility(View.GONE);
					labelsScrollViewWithText.setVisibility(View.VISIBLE);
					frameLabels.removeAllViews();

					for(int i = 0; i < issue.getLabels().size(); i++) {

						String labelColor = issue.getLabels().get(i).getColor();
						String labelName = issue.getLabels().get(i).getName();
						int color = Color.parseColor("#" + labelColor);

						ImageView labelsView = new ImageView(context);
						frameLabels.setOrientation(LinearLayout.HORIZONTAL);
						frameLabels.setGravity(Gravity.START | Gravity.TOP);
						labelsView.setLayoutParams(params);

						int height = AppUtil.getPixelsFromDensity(context, 20);
						int textSize = AppUtil.getPixelsFromScaledDensity(context, 12);

						TextDrawable drawable = TextDrawable.builder().beginConfig().useFont(Typeface.DEFAULT).textColor(new ColorInverter().getContrastColor(color)).fontSize(textSize)
							.width(LabelWidthCalculator.calculateLabelWidth(labelName, Typeface.DEFAULT, textSize, AppUtil.getPixelsFromDensity(context, 8))).height(height).endConfig()
							.buildRoundRect(labelName, color, AppUtil.getPixelsFromDensity(context, 18));

						labelsView.setImageDrawable(drawable);
						frameLabels.addView(labelsView);
					}
				}
			}

			switch(timeFormat) {
				case "pretty": {
					PrettyTime prettyTime = new PrettyTime(locale);
					String createdTime = prettyTime.format(issue.getCreatedAt());
					this.issueCreatedTime.setText(createdTime);
					this.issueCreatedTime.setOnClickListener(new ClickListener(TimeHelper.customDateFormatForToastDateFormat(issue.getCreatedAt()), context));
					break;
				}
				case "normal": {
					DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd '" + context.getResources().getString(R.string.timeAtText) + "' HH:mm", locale);
					String createdTime = formatter.format(issue.getCreatedAt());
					this.issueCreatedTime.setText(createdTime);
					break;
				}
				case "normal1": {
					DateFormat formatter = new SimpleDateFormat("dd-MM-yyyy '" + context.getResources().getString(R.string.timeAtText) + "' HH:mm", locale);
					String createdTime = formatter.format(issue.getCreatedAt());
					this.issueCreatedTime.setText(createdTime);
					break;
				}
			}

		}

	}

}