import 'dart:io';

import 'package:test/test.dart';
import 'package:libgit2dart/src/repository.dart';
import 'package:libgit2dart/src/error.dart';
import 'helpers/util.dart';

void main() {
  late Repository repo;

  group('Repository', () {
    test('throws when repository isn\'t found at provided path', () {
      expect(
        () => Repository.open(''),
        throwsA(isA<LibGit2Error>()),
      );
    });

    group('empty', () {
      group('bare', () {
        setUp(() {
          repo = Repository.open('test/assets/empty_bare.git');
        });

        tearDown(() {
          repo.close();
        });

        test('opens successfully', () {
          expect(repo, isA<Repository>());
        });

        test('checks if it is bare', () {
          expect(repo.isBare, true);
        });

        test('returns path to the repository', () {
          expect(
            repo.path,
            '${Directory.current.path}/test/assets/empty_bare.git/',
          );
        });

        test('returns path to root directory for the repository', () {
          expect(
            repo.commonDir,
            '${Directory.current.path}/test/assets/empty_bare.git/',
          );
        });

        test('returns empty string as path of the working directory', () {
          expect(repo.workdir, '');
        });

        group('setHead', () {
          test('throws when reference doesn\'t exist', () {
            expect(
              () => repo.setHead('refs/tags/doesnt/exist'),
              throwsA(isA<LibGit2Error>()),
            );
          });
        });
      });

      group('standard', () {
        setUp(() {
          repo = Repository.open('test/assets/empty_standard/.gitdir/');
        });

        tearDown(() {
          repo.close();
        });

        test('opens standart repository from working directory successfully',
            () {
          expect(repo, isA<Repository>());
        });

        test('returns path to the repository', () {
          expect(
            repo.path,
            '${Directory.current.path}/test/assets/empty_standard/.gitdir/',
          );
        });

        test('returns path to parent repo\'s .git folder for the repository',
            () {
          expect(
            repo.commonDir,
            '${Directory.current.path}/test/assets/empty_standard/.gitdir/',
          );
        });

        test('checks if it is empty', () {
          expect(repo.isEmpty, true);
        });

        test('checks if head is detached', () {
          expect(repo.isHeadDetached, false);
        });

        test('checks if branch is unborn', () {
          expect(repo.isBranchUnborn, true);
        });

        test('successfully sets identity ', () {
          repo.setIdentity(name: 'name', email: 'email@email.com');
          expect(repo.identity, {'name': 'email@email.com'});
        });

        test('successfully unsets identity', () {
          repo.setIdentity(name: null, email: null);
          expect(repo.identity, isEmpty);
        });

        test('checks if shallow clone', () {
          expect(repo.isShallow, false);
        });

        test('checks if linked work tree', () {
          expect(repo.isWorktree, false);
        });

        test('returns path to working directory', () {
          expect(
            repo.workdir,
            '${Directory.current.path}/test/assets/empty_standard/',
          );
        });
      });
    });

    group('testrepo', () {
      final tmpDir = '${Directory.systemTemp.path}/testrepo/';

      setUpAll(() async {
        await copyRepo(
          from: Directory('test/assets/testrepo/'),
          to: await Directory(tmpDir).create(),
        );
        repo = Repository.open(tmpDir);
      });

      tearDownAll(() async {
        repo.close();
        await Directory(tmpDir).delete(recursive: true);
      });

      test('returns empty string when there is no namespace', () {
        expect(repo.namespace, isEmpty);
      });

      test('successfully sets and unsets the namespace', () {
        expect(repo.namespace, '');
        repo.setNamespace('some');
        expect(repo.namespace, 'some');
        repo.setNamespace(null);
        expect(repo.namespace, '');
      });
    });
  });
}