#!/usr/bin/env python3
#  Copyright 2016 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS-IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import pytest

from fruit_test_common import *

COMMON_DEFINITIONS = '''
    #include "test_common.h"

    struct X;

    struct Annotation1 {};
    using XAnnot1 = fruit::Annotated<Annotation1, X>;

    struct Annotation2 {};
    using XAnnot2 = fruit::Annotated<Annotation2, X>;
    '''

@pytest.mark.parametrize('XAnnot', [
    'X',
    'fruit::Annotated<Annotation1, X>',
])
def test_move(XAnnot):
    source = '''
        struct X {
          using Inject = X();
        };

        fruit::Component<XAnnot> getComponent() {
          fruit::Component<XAnnot> c = fruit::createComponent();
          fruit::Component<XAnnot> c2 = std::move(c);
          return fruit::Component<XAnnot>(std::move(c2));
        }

        int main() {
          fruit::Injector<XAnnot> injector(getComponent);
          injector.get<XAnnot>();
        }
        '''
    expect_success(
        COMMON_DEFINITIONS,
        source,
        locals())

@pytest.mark.parametrize('XAnnot', [
    'X',
    'fruit::Annotated<Annotation1, X>',
])
def test_move_partial_component(XAnnot):
    source = '''
        struct X {
          using Inject = X();
        };

        fruit::Component<XAnnot> getComponent() {
          auto c = fruit::createComponent();
          auto c1 = std::move(c);
          return std::move(c1);
        }

        int main() {
          fruit::Injector<XAnnot> injector(getComponent);
          injector.get<XAnnot>();
        }
        '''
    expect_generic_compile_error(
        'error: use of deleted function .fruit::PartialComponent<Bindings>::PartialComponent\(fruit::PartialComponent<Bindings>&&\).'
            + '|error: call to deleted constructor of .fruit::PartialComponent<>.'
            # MSVC 2017
            + '|error C2280: .fruit::PartialComponent<>::PartialComponent\(fruit::PartialComponent<> &&\).: attempting to reference a deleted function'
            # MSVC 2015
            + '|error C2248: .fruit::PartialComponent<>::PartialComponent.: cannot access private member declared in class .fruit::PartialComponent<>.',
        COMMON_DEFINITIONS,
        source,
        locals())

@pytest.mark.parametrize('XAnnot,ConstXAnnot', [
    ('X', 'X'),
    ('X', 'const X'),
    ('fruit::Annotated<Annotation1, X>', 'fruit::Annotated<Annotation1, X>'),
    ('fruit::Annotated<Annotation1, X>', 'fruit::Annotated<Annotation1, const X>'),
])
def test_error_no_binding_found(XAnnot, ConstXAnnot):
    source = '''
        struct X {};

        fruit::Component<ConstXAnnot> getComponent() {
          return fruit::createComponent();
        }
        '''
    expect_compile_error(
        'NoBindingFoundError<XAnnot>',
        'No explicit binding nor C::Inject definition was found for T.',
        COMMON_DEFINITIONS,
        source,
        locals())

@pytest.mark.parametrize('XAnnot,ConstXAnnot', [
    ('X', 'X'),
    ('X', 'const X'),
    ('fruit::Annotated<Annotation1, X>', 'fruit::Annotated<Annotation1, X>'),
    ('fruit::Annotated<Annotation1, X>', 'fruit::Annotated<Annotation1, const X>'),
])
def test_error_no_binding_found_abstract_class(XAnnot, ConstXAnnot):
    source = '''
        struct X {
          virtual void f() = 0;
        };

        fruit::Component<ConstXAnnot> getComponent() {
          return fruit::createComponent();
        }
        '''
    expect_compile_error(
        'NoBindingFoundForAbstractClassError<XAnnot,X>',
        'No explicit binding was found for T, and note that C is an abstract class',
        COMMON_DEFINITIONS,
        source,
        locals())

@pytest.mark.parametrize('MaybeConst', [
    '',
    'const',
])
def test_error_no_factory_binding_found(MaybeConst):
    source = '''
        struct X {};

        fruit::Component<MaybeConst std::function<std::unique_ptr<X>()>> getComponent() {
          return fruit::createComponent();
        }
        '''
    expect_compile_error(
        'NoBindingFoundError<std::function<std::unique_ptr<X(,std::default_delete<X>)?>\((void)?\)>',
        'No explicit binding nor C::Inject definition was found for T.',
        COMMON_DEFINITIONS,
        source,
        locals())

@pytest.mark.parametrize('MaybeConst', [
    '',
    'const',
])
def test_error_no_factory_binding_found_with_annotation(MaybeConst):
    source = '''
        struct X {};

        fruit::Component<fruit::Annotated<Annotation1, MaybeConst std::function<std::unique_ptr<X>()>>> getComponent() {
          return fruit::createComponent();
        }
        '''
    expect_compile_error(
        'NoBindingFoundError<fruit::Annotated<Annotation1,std::function<std::unique_ptr<X(,std::default_delete<X>)?>\((void)?\)>>',
        'No explicit binding nor C::Inject definition was found for T.',
        COMMON_DEFINITIONS,
        source,
        locals())

if __name__== '__main__':
    main(__file__)