package org.mian.gitnex.fragments;

import android.content.Context;
import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import com.google.android.material.bottomsheet.BottomSheetDialogFragment;
import java.util.Objects;
import org.mian.gitnex.R;
import org.mian.gitnex.actions.IssueActions;
import org.mian.gitnex.actions.PullRequestActions;
import org.mian.gitnex.activities.BaseActivity;
import org.mian.gitnex.activities.DiffActivity;
import org.mian.gitnex.activities.EditIssueActivity;
import org.mian.gitnex.activities.IssueDetailActivity;
import org.mian.gitnex.activities.MergePullRequestActivity;
import org.mian.gitnex.databinding.BottomSheetSingleIssueBinding;
import org.mian.gitnex.helpers.AlertDialogs;
import org.mian.gitnex.helpers.AppUtil;
import org.mian.gitnex.helpers.contexts.IssueContext;
import org.mian.gitnex.structs.BottomSheetListener;
import org.mian.gitnex.views.ReactionSpinner;

/**
 * @author M M Arif
 */
public class BottomSheetSingleIssueFragment extends BottomSheetDialogFragment {

	private final IssueContext issue;
	private final String issueCreator;
	private BottomSheetListener bmListener;

	public BottomSheetSingleIssueFragment(IssueContext issue, String username) {
		this.issue = issue;
		issueCreator = username;
	}

	@Nullable @Override
	public View onCreateView(
			@NonNull LayoutInflater inflater,
			@Nullable ViewGroup container,
			@Nullable Bundle savedInstanceState) {

		BottomSheetSingleIssueBinding binding =
				BottomSheetSingleIssueBinding.inflate(inflater, container, false);

		final Context ctx = getContext();

		boolean userIsCreator =
				issueCreator.equals(
						((BaseActivity) requireActivity()).getAccount().getAccount().getUserName());
		boolean isRepoAdmin = issue.getRepository().getPermissions().isAdmin();
		boolean canPush = issue.getRepository().getPermissions().isPush();
		boolean archived = issue.getRepository().getRepository().isArchived();

		Bundle bundle = new Bundle();
		bundle.putString("repoOwner", issue.getRepository().getOwner());
		bundle.putString("repoName", issue.getRepository().getName());
		bundle.putInt("issueId", issue.getIssueIndex());

		TextView loadReactions = new TextView(ctx);
		loadReactions.setText(Objects.requireNonNull(ctx).getString(R.string.genericWaitFor));
		loadReactions.setGravity(Gravity.CENTER);
		loadReactions.setLayoutParams(
				new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 140));
		binding.commentReactionButtons.addView(loadReactions);

		ReactionSpinner reactionSpinner = new ReactionSpinner(ctx, bundle);
		reactionSpinner.setOnInteractedListener(
				() -> {
					IssueDetailActivity.singleIssueUpdate = true;

					bmListener.onButtonClicked("onResume");
					dismiss();
				});
		reactionSpinner.setOnLoadingFinishedListener(
				() -> {
					reactionSpinner.setLayoutParams(
							new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 160));
					binding.commentReactionButtons.removeView(loadReactions);
					binding.commentReactionButtons.addView(reactionSpinner);
				});

		if (issue.getIssueType().equalsIgnoreCase("Pull")) {

			binding.editIssue.setText(R.string.menuEditText);

			boolean canPushPullSource =
					issue.getPullRequest().getHead().getRepo() != null
							? issue.getPullRequest().getHead().getRepo().getPermissions().isPush()
							: false;
			if (issue.getPullRequest().isMerged() || issue.getIssue().getState().equals("closed")) {
				binding.updatePullRequest.setVisibility(View.GONE);
				binding.mergePullRequest.setVisibility(View.GONE);
				if (canPushPullSource) {
					binding.deletePrHeadBranch.setVisibility(View.VISIBLE);
				} else {
					if (!canPush) {
						binding.editIssue.setVisibility(View.GONE);
					}
					binding.deletePrHeadBranch.setVisibility(View.GONE);
				}
			} else {
				if (canPushPullSource) {
					binding.updatePullRequest.setVisibility(View.VISIBLE);
				} else {
					binding.updatePullRequest.setVisibility(View.GONE);
				}
				if (!userIsCreator && !canPush) {
					binding.editIssue.setVisibility(View.GONE);
				}
				if (canPush && issue.getPullRequest().isMergeable()) {
					binding.mergePullRequest.setVisibility(View.VISIBLE);
				} else {
					binding.mergePullRequest.setVisibility(View.GONE);
				}
				binding.deletePrHeadBranch.setVisibility(View.GONE);
			}

			binding.openFilesDiff.setVisibility(View.VISIBLE);
		} else {
			if (!userIsCreator && !canPush) {
				binding.editIssue.setVisibility(View.GONE);
			}
			binding.updatePullRequest.setVisibility(View.GONE);
			binding.mergePullRequest.setVisibility(View.GONE);
			binding.deletePrHeadBranch.setVisibility(View.GONE);
		}

		binding.updatePullRequest.setOnClickListener(
				v -> {
					if (((BaseActivity) requireActivity()).getAccount().requiresVersion("1.16.0")) {
						AlertDialogs.selectPullUpdateStrategy(
								requireContext(),
								issue.getRepository().getOwner(),
								issue.getRepository().getName(),
								String.valueOf(issue.getIssueIndex()));
					} else {
						PullRequestActions.updatePr(
								requireContext(),
								issue.getRepository().getOwner(),
								issue.getRepository().getName(),
								String.valueOf(issue.getIssueIndex()),
								null);
					}
					dismiss();
				});

		binding.mergePullRequest.setOnClickListener(
				v13 -> {
					startActivity(issue.getIntent(ctx, MergePullRequestActivity.class));
					dismiss();
				});

		binding.deletePrHeadBranch.setOnClickListener(
				v -> {
					PullRequestActions.deleteHeadBranch(
							ctx,
							issue.getRepository().getOwner(),
							issue.getRepository().getName(),
							issue.getPullRequest().getHead().getRef(),
							true);
					dismiss();
				});

		binding.openFilesDiff.setOnClickListener(
				v14 -> {
					startActivity(issue.getIntent(ctx, DiffActivity.class));
					dismiss();
				});

		binding.editIssue.setOnClickListener(
				v15 -> {
					((IssueDetailActivity) requireActivity())
							.editIssueLauncher.launch(
									issue.getIntent(ctx, EditIssueActivity.class));
					dismiss();
				});

		binding.editLabels.setOnClickListener(
				v16 -> {
					bmListener.onButtonClicked("showLabels");
					dismiss();
				});

		binding.addRemoveAssignees.setOnClickListener(
				v17 -> {
					bmListener.onButtonClicked("showAssignees");
					dismiss();
				});

		binding.shareIssue.setOnClickListener(
				v1 -> {
					AppUtil.sharingIntent(ctx, issue.getIssue().getHtmlUrl());
					dismiss();
				});

		binding.copyIssueUrl.setOnClickListener(
				v12 -> {
					AppUtil.copyToClipboard(
							ctx,
							issue.getIssue().getHtmlUrl(),
							ctx.getString(R.string.copyIssueUrlToastMsg));
					dismiss();
				});

		binding.open.setOnClickListener(
				v12 -> {
					AppUtil.openUrlInBrowser(ctx, issue.getIssue().getHtmlUrl());
					dismiss();
				});

		if (issue.getIssueType().equalsIgnoreCase("pull")) {
			binding.bottomSheetHeader.setText(R.string.pullRequest);
		}

		if (issue.getIssue().getState().equals("open")) { // close issue
			if (!userIsCreator && !canPush) {
				binding.closeIssue.setVisibility(View.GONE);
			} else if (issue.getIssueType().equalsIgnoreCase("Pull")) {
				binding.closeIssue.setText(R.string.close);
			}
			binding.closeIssue.setOnClickListener(
					closeSingleIssue -> {
						IssueActions.closeReopenIssue(ctx, "closed", issue);
						dismiss();
					});
		} else if (issue.getIssue().getState().equals("closed")) {
			if (userIsCreator || canPush) {
				binding.closeIssue.setText(R.string.reopen);
			} else {
				binding.closeIssue.setVisibility(View.GONE);
			}
			binding.closeIssue.setOnClickListener(
					closeSingleIssue -> {
						IssueActions.closeReopenIssue(ctx, "open", issue);
						dismiss();
					});
		}

		binding.subscribeIssue.setOnClickListener(
				subscribeToIssue -> {
					IssueActions.subscribe(ctx, issue);
					issue.setSubscribed(true);
					dismiss();
				});

		binding.unsubscribeIssue.setOnClickListener(
				unsubscribeToIssue -> {
					IssueActions.unsubscribe(ctx, issue);
					issue.setSubscribed(false);
					dismiss();
				});

		if (issue.isSubscribed()) {
			binding.subscribeIssue.setVisibility(View.GONE);
			binding.unsubscribeIssue.setVisibility(View.VISIBLE);
		} else {
			binding.subscribeIssue.setVisibility(View.VISIBLE);
			binding.unsubscribeIssue.setVisibility(View.GONE);
		}

		if (archived) {
			binding.subscribeIssue.setVisibility(View.GONE);
			binding.unsubscribeIssue.setVisibility(View.GONE);
			binding.editIssue.setVisibility(View.GONE);
			binding.editLabels.setVisibility(View.GONE);
			binding.closeIssue.setVisibility(View.GONE);
			binding.addRemoveAssignees.setVisibility(View.GONE);
			binding.commentReactionButtons.setVisibility(View.GONE);
			binding.bottomSheetHeaderFrame.setVisibility(View.GONE);
			binding.mergePullRequest.setVisibility(View.GONE);
			binding.updatePullRequest.setVisibility(View.GONE);
			if (issue.getIssueType().equalsIgnoreCase("issue")) {
				binding.issuePrDivider.setVisibility(View.GONE);
			}
		}
		if (isRepoAdmin || canPush) {
			binding.addRemoveAssignees.setVisibility(View.VISIBLE);
			binding.editLabels.setVisibility(View.VISIBLE);
		} else {
			binding.addRemoveAssignees.setVisibility(View.GONE);
			binding.editLabels.setVisibility(View.GONE);
		}

		return binding.getRoot();
	}

	@Override
	public void onAttach(@NonNull Context context) {

		super.onAttach(context);

		try {

			bmListener = (BottomSheetListener) context;
		} catch (ClassCastException e) {

			throw new ClassCastException(context + " must implement BottomSheetListener");
		}
	}
}