import unittest
from contextlib import closing

from pycs.database.Database import Database


class TestDatabase(unittest.TestCase):
    def setUp(self) -> None:
        # create database
        self.database = Database(discovery=False)

        # insert default models and label_providers
        with self.database:
            with closing(self.database.con.cursor()) as cursor:
                # models
                cursor.execute('''
                    INSERT INTO models (name, description, root_folder, supports)
                    VALUES 
                        ('Model 1', 'Description for Model 1', 'modeldir1', '["labeled-image", "fit"]'),
                        ('Model 2', 'Description for Model 2', 'modeldir2', '["labeled-bounding-boxes"]'),
                        ('Model 3', 'Description for Model 3', 'modeldir3', '["labeled-bounding-boxes"]')
                ''')

                # label providers
                cursor.execute('''
                    INSERT INTO label_providers (name, description, root_folder, configuration_file)
                    VALUES
                        ('Label Provider 1', 'Description for Label Provider 1', 'labeldir1', 'file1'),
                        ('Label Provider 2', 'Description for Label Provider 2', 'labeldir2', 'file2')
                ''')

                # projects
                models = list(self.database.models())
                label_providers = list(self.database.label_providers())

                for i in range(3):
                    self.database.create_project(
                        f'Project {i + 1}', f'Project Description {i + 1}',
                        models[i],
                        label_providers[i] if i < 2 else None,
                        f'projectdir{i + 1}', i == 1, f'datadir{i + 1}'
                    )

    def tearDown(self) -> None:
        self.database.close()

    def test_models(self):
        models = list(self.database.models())

        # test length
        self.assertEqual(len(models), 3)

        # test insert
        for i in range(2):
            self.assertEqual(models[i].identifier, i + 1)
            self.assertEqual(models[i].name, f'Model {i + 1}')
            self.assertEqual(models[i].description, f'Description for Model {i + 1}')
            self.assertEqual(models[i].root_folder, f'modeldir{i + 1}')

        self.assertEqual(models[0].supports, ['labeled-image', 'fit'])
        self.assertEqual(models[1].supports, ['labeled-bounding-boxes'])

        # test copy
        copy, _ = models[0].copy_to('Copied Model', 'modeldir3')
        self.assertEqual(copy.identifier, 3)
        self.assertEqual(copy.name, 'Copied Model')
        self.assertEqual(copy.description, 'Description for Model 1')
        self.assertEqual(copy.root_folder, 'modeldir3')
        self.assertEqual(copy.supports, ['labeled-image', 'fit'])

    def test_label_providers(self):
        label_providers = list(self.database.label_providers())

        # test length
        self.assertEqual(len(label_providers), 2)

        for i in range(2):
            self.assertEqual(label_providers[i].identifier, i + 1)
            self.assertEqual(label_providers[i].name, f'Label Provider {i + 1}')
            self.assertEqual(label_providers[i].description, f'Description for Label Provider {i + 1}')
            self.assertEqual(label_providers[i].root_folder, f'labeldir{i + 1}')
            self.assertEqual(label_providers[i].configuration_file, f'file{i + 1}')

    def test_projects(self):
        models = list(self.database.models())
        label_providers = list(self.database.label_providers())
        projects = list(self.database.projects())

        # create projects
        for i in range(3):
            project = projects[i]

            self.assertEqual(project.identifier, i + 1)
            self.assertEqual(project.name, f'Project {i + 1}')
            self.assertEqual(project.description, f'Project Description {i + 1}')
            self.assertEqual(project.model_id, i + 1)
            self.assertEqual(project.model().__dict__, models[i].__dict__)
            self.assertEqual(project.label_provider_id, label_providers[i].identifier if i < 2 else None)
            self.assertEqual(
                project.label_provider().__dict__ if project.label_provider() is not None else None,
                label_providers[i].__dict__ if i < 2 else None
            )
            self.assertEqual(project.root_folder, f'projectdir{i + 1}')
            self.assertEqual(project.external_data, i == 1)
            self.assertEqual(project.data_folder, f'datadir{i + 1}')

        # get projects
        self.assertEqual(len(list(self.database.projects())), 3)

        # remove a project
        list(self.database.projects())[0].remove()
        projects = list(self.database.projects())

        self.assertEqual(len(projects), 2)
        self.assertEqual(projects[0].name, 'Project 2')

        # set properties
        project = list(self.database.projects())[0]

        project.set_name('Project 0')
        self.assertEqual(list(self.database.projects())[0].name, 'Project 0')

        project.set_description('Description 0')
        self.assertEqual(list(self.database.projects())[0].description, 'Description 0')


if __name__ == '__main__':
    unittest.main()