#!/usr/bin/env python
#
# SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD
# SPDX-License-Identifier: Apache-2.0

import json
import os
import subprocess
import sys
from unittest import TestCase, main, mock

import jsonschema

try:
    from StringIO import StringIO
except ImportError:
    from io import StringIO

try:
    import idf
except ImportError:
    sys.path.append('..')
    import idf

current_dir = os.path.dirname(os.path.realpath(__file__))
idf_py_path = os.path.join(current_dir, '..', 'idf.py')
extension_path = os.path.join(current_dir, 'test_idf_extensions', 'test_ext')
link_path = os.path.join(current_dir, '..', 'idf_py_actions', 'test_ext')


class TestWithoutExtensions(TestCase):
    @classmethod
    def setUpClass(cls):
        # Disable the component manager and extra extensions for these tests
        cls.env_patcher = mock.patch.dict(os.environ, {
            'IDF_COMPONENT_MANAGER': '0',
            'IDF_EXTRA_ACTIONS_PATH': '',
        })
        cls.env_patcher.start()

        super().setUpClass()


class TestExtensions(TestWithoutExtensions):
    def test_extension_loading(self):
        try:
            os.symlink(extension_path, link_path)
            os.environ['IDF_EXTRA_ACTIONS_PATH'] = os.path.join(current_dir, 'extra_path')
            output = subprocess.check_output([sys.executable, idf_py_path, '--help'],
                                             env=os.environ).decode('utf-8', 'ignore')

            self.assertIn('--test-extension-option', output)
            self.assertIn('test_subcommand', output)
            self.assertIn('--some-extension-option', output)
            self.assertIn('extra_subcommand', output)
        finally:
            os.remove(link_path)

    def test_extension_execution(self):
        try:
            os.symlink(extension_path, link_path)
            os.environ['IDF_EXTRA_ACTIONS_PATH'] = ';'.join([os.path.join(current_dir, 'extra_path')])
            output = subprocess.check_output(
                [sys.executable, idf_py_path, '--some-extension-option=awesome', 'test_subcommand', 'extra_subcommand'],
                env=os.environ).decode('utf-8', 'ignore')
            self.assertIn('!!! From some global callback: awesome', output)
            self.assertIn('!!! From some subcommand', output)
            self.assertIn('!!! From test global callback: test', output)
            self.assertIn('!!! From some subcommand', output)
        finally:
            os.remove(link_path)

    def test_hidden_commands(self):
        try:
            os.symlink(extension_path, link_path)
            os.environ['IDF_EXTRA_ACTIONS_PATH'] = ';'.join([os.path.join(current_dir, 'extra_path')])
            output = subprocess.check_output([sys.executable, idf_py_path, '--help'],
                                             env=os.environ).decode('utf-8', 'ignore')
            self.assertIn('test_subcommand', output)
            self.assertNotIn('hidden_one', output)

        finally:
            os.remove(link_path)


class TestDependencyManagement(TestWithoutExtensions):
    def test_dependencies(self):
        result = idf.init_cli()(
            args=['--dry-run', 'flash'],
            standalone_mode=False,
        )
        self.assertEqual(['flash'], list(result.keys()))

    def test_order_only_dependencies(self):
        result = idf.init_cli()(
            args=['--dry-run', 'build', 'fullclean', 'all'],
            standalone_mode=False,
        )
        self.assertEqual(['fullclean', 'all'], list(result.keys()))

    def test_repeated_dependencies(self):
        result = idf.init_cli()(
            args=['--dry-run', 'fullclean', 'app', 'fullclean', 'fullclean'],
            standalone_mode=False,
        )
        self.assertEqual(['fullclean', 'app'], list(result.keys()))

    def test_complex_case(self):
        result = idf.init_cli()(
            args=['--dry-run', 'clean', 'monitor', 'clean', 'fullclean', 'flash'],
            standalone_mode=False,
        )
        self.assertEqual(['fullclean', 'clean', 'flash', 'monitor'], list(result.keys()))

    def test_dupplicated_commands_warning(self):
        capturedOutput = StringIO()
        sys.stderr = capturedOutput
        idf.init_cli()(
            args=['--dry-run', 'clean', 'monitor', 'build', 'clean', 'fullclean', 'all'],
            standalone_mode=False,
        )
        sys.stderr = sys.__stderr__
        self.assertIn(
            'WARNING: Commands "all", "clean" are found in the list of commands more than once.',
            capturedOutput.getvalue())

        sys.stderr = capturedOutput
        idf.init_cli()(
            args=['--dry-run', 'clean', 'clean'],
            standalone_mode=False,
        )
        sys.stderr = sys.__stderr__
        self.assertIn(
            'WARNING: Command "clean" is found in the list of commands more than once.', capturedOutput.getvalue())


class TestVerboseFlag(TestWithoutExtensions):
    def test_verbose_messages(self):
        output = subprocess.check_output(
            [
                sys.executable,
                idf_py_path,
                '-C%s' % current_dir,
                '-v',
                'test-verbose',
            ], env=os.environ).decode('utf-8', 'ignore')

        self.assertIn('Verbose mode on', output)

    def test_verbose_messages_not_shown_by_default(self):
        output = subprocess.check_output(
            [
                sys.executable,
                idf_py_path,
                '-C%s' % current_dir,
                'test-verbose',
            ], env=os.environ).decode('utf-8', 'ignore')

        self.assertIn('Output from test-verbose', output)
        self.assertNotIn('Verbose mode on', output)


class TestGlobalAndSubcommandParameters(TestWithoutExtensions):
    def test_set_twice_same_value(self):
        """Can set -D twice: globally and for subcommand if values are the same"""

        idf.init_cli()(
            args=['--dry-run', '-DAAA=BBB', '-DCCC=EEE', 'build', '-DAAA=BBB', '-DCCC=EEE'],
            standalone_mode=False,
        )

    def test_set_twice_different_values(self):
        """Cannot set -D twice: for command and subcommand of idf.py (with different values)"""

        with self.assertRaises(idf.FatalError):
            idf.init_cli()(
                args=['--dry-run', '-DAAA=BBB', 'build', '-DAAA=EEE', '-DCCC=EEE'],
                standalone_mode=False,
            )


class TestDeprecations(TestWithoutExtensions):
    def test_exit_with_error_for_subcommand(self):
        try:
            subprocess.check_output(
                [sys.executable, idf_py_path, '-C%s' % current_dir, 'test-2'], env=os.environ, stderr=subprocess.STDOUT)
        except subprocess.CalledProcessError as e:
            self.assertIn('Error: Command "test-2" is deprecated and was removed.', e.output.decode('utf-8', 'ignore'))

    def test_exit_with_error_for_option(self):
        try:
            subprocess.check_output(
                [sys.executable, idf_py_path, '-C%s' % current_dir, '--test-5=asdf'],
                env=os.environ,
                stderr=subprocess.STDOUT)
        except subprocess.CalledProcessError as e:
            self.assertIn(
                'Error: Option "test_5" is deprecated since v2.0 and was removed in v3.0.',
                e.output.decode('utf-8', 'ignore'))

    def test_deprecation_messages(self):
        output = subprocess.check_output(
            [
                sys.executable,
                idf_py_path,
                '-C%s' % current_dir,
                '--test-0=a',
                '--test-1=b',
                '--test-2=c',
                '--test-3=d',
                'test-0',
                '--test-sub-0=sa',
                '--test-sub-1=sb',
                'ta',
                'test-1',
            ],
            env=os.environ,
            stderr=subprocess.STDOUT).decode('utf-8', 'ignore')

        self.assertIn('Warning: Option "test_sub_1" is deprecated and will be removed in future versions.', output)
        self.assertIn(
            'Warning: Command "test-1" is deprecated and will be removed in future versions. '
            'Please use alternative command.', output)
        self.assertIn('Warning: Option "test_1" is deprecated and will be removed in future versions.', output)
        self.assertIn(
            'Warning: Option "test_2" is deprecated and will be removed in future versions. '
            'Please update your parameters.', output)
        self.assertIn('Warning: Option "test_3" is deprecated and will be removed in future versions.', output)
        self.assertNotIn('"test-0" is deprecated', output)
        self.assertNotIn('"test_0" is deprecated', output)


class TestHelpOutput(TestWithoutExtensions):
    def test_output(self):
        def action_test(commands, schema):
            output_file = 'idf_py_help_output.json'
            with open(output_file, 'w') as outfile:
                subprocess.run(commands, env=os.environ, stdout=outfile)
            with open(output_file, 'r') as outfile:
                help_obj = json.load(outfile)
            self.assertIsNone(jsonschema.validate(help_obj, schema))

        with open(os.path.join(current_dir, 'idf_py_help_schema.json'), 'r') as schema_file:
            schema_json = json.load(schema_file)
        action_test(['idf.py', 'help', '--json'], schema_json)
        action_test(['idf.py', 'help', '--json', '--add-options'], schema_json)


if __name__ == '__main__':
    main()
