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#include "googletest.h"
#include "mockprecompiledheaderstorage.h"
#include "mockprojectpartsstorage.h"

#include <projectpartsmanager.h>

#include <projectpartcontainer.h>

namespace {

using ClangBackEnd::FilePathId;
using ClangBackEnd::ProjectPartContainer;
using ClangBackEnd::ProjectPartContainers;
using UpToDataProjectParts = ClangBackEnd::ProjectPartsManagerInterface::UpToDataProjectParts;

class ProjectPartsManager : public testing::Test
{
protected:
    ProjectPartsManager()
    {
        projectPartContainerWithoutPrecompiledHeader1.hasPrecompiledHeader = false;
    }
    NiceMock<MockProjectPartsStorage> mockProjectPartsStorage;
    NiceMock<MockPrecompiledHeaderStorage> mockPrecompiledHeaderStorage;

    ClangBackEnd::ProjectPartsManager manager{mockProjectPartsStorage, mockPrecompiledHeaderStorage};
    FilePathId firstHeader{1};
    FilePathId secondHeader{2};
    FilePathId firstSource{11};
    FilePathId secondSource{12};
    FilePathId thirdSource{13};
    ProjectPartContainer projectPartContainer1{
        1,
        {"-DUNIX", "-O2"},
        {{"DEFINE", "1", 1}},
        {{"/includes", 1, ClangBackEnd::IncludeSearchPathType::BuiltIn}},
        {{"/project/includes", 1, ClangBackEnd::IncludeSearchPathType::User}},
        {firstHeader, secondHeader},
        {firstSource, secondSource},
        Utils::Language::C,
        Utils::LanguageVersion::C11,
        Utils::LanguageExtension::All};
    ProjectPartContainer updatedProjectPartContainer1{
        1,
        {"-DUNIX", "-O2"},
        {{"DEFINE", "1", 1}},
        {{"/includes", 1, ClangBackEnd::IncludeSearchPathType::BuiltIn}},
        {{"/project/includes", 1, ClangBackEnd::IncludeSearchPathType::User}},
        {firstHeader, secondHeader},
        {firstSource, secondSource, thirdSource},
        Utils::Language::C,
        Utils::LanguageVersion::C11,
        Utils::LanguageExtension::All};
    ProjectPartContainer nullProjectPartContainer1{1,
                                                   {},
                                                   {},
                                                   {},
                                                   {},
                                                   {},
                                                   {},
                                                   Utils::Language::C,
                                                   Utils::LanguageVersion::C89,
                                                   Utils::LanguageExtension::None};
    ProjectPartContainer projectPartContainerWithoutPrecompiledHeader1{
        1,
        {"-DUNIX", "-O2"},
        {{"DEFINE", "1", 1}},
        {{"/includes", 1, ClangBackEnd::IncludeSearchPathType::BuiltIn}},
        {{"/project/includes", 1, ClangBackEnd::IncludeSearchPathType::User}},
        {firstHeader, secondHeader},
        {firstSource, secondSource},
        Utils::Language::C,
        Utils::LanguageVersion::C11,
        Utils::LanguageExtension::All};
    ProjectPartContainer projectPartContainer2{
        2,
        {"-DUNIX", "-O2"},
        {{"DEFINE", "1", 1}},
        {{"/includes", 1, ClangBackEnd::IncludeSearchPathType::BuiltIn}},
        {{"/project/includes", 1, ClangBackEnd::IncludeSearchPathType::User}},
        {firstHeader, secondHeader},
        {firstSource, secondSource},
        Utils::Language::C,
        Utils::LanguageVersion::C11,
        Utils::LanguageExtension::All};
};

TEST_F(ProjectPartsManager, GetNoProjectPartsForAddingEmptyProjectParts)
{
    auto projectParts = manager.update({});

    ASSERT_THAT(projectParts,
                AllOf(Field(&UpToDataProjectParts::upToDate, IsEmpty()),
                      Field(&UpToDataProjectParts::notUpToDate, IsEmpty())));
}

TEST_F(ProjectPartsManager, GetProjectPartForAddingProjectPart)
{
    auto projectParts = manager.update({projectPartContainer1});

    ASSERT_THAT(projectParts,
                AllOf(Field(&UpToDataProjectParts::upToDate, IsEmpty()),
                      Field(&UpToDataProjectParts::notUpToDate, ElementsAre(projectPartContainer1))));
}

TEST_F(ProjectPartsManager, GetProjectPartForAddingProjectPartWithProjectPartAlreadyInTheDatabase)
{
    ON_CALL(mockProjectPartsStorage, fetchProjectParts(_))
        .WillByDefault(Return(ProjectPartContainers{projectPartContainer1}));

    auto projectParts = manager.update({projectPartContainer1, projectPartContainer2});

    ASSERT_THAT(projectParts,
                AllOf(Field(&UpToDataProjectParts::upToDate, ElementsAre(projectPartContainer1)),
                      Field(&UpToDataProjectParts::notUpToDate, ElementsAre(projectPartContainer2))));
}

TEST_F(ProjectPartsManager, GetProjectPartForAddingProjectPartWithOlderProjectPartAlreadyInTheDatabase)
{
    ON_CALL(mockProjectPartsStorage, fetchProjectParts(_))
        .WillByDefault(Return(ProjectPartContainers{projectPartContainer1}));

    auto projectParts = manager.update({updatedProjectPartContainer1, projectPartContainer2});

    ASSERT_THAT(projectParts,
                AllOf(Field(&UpToDataProjectParts::upToDate, IsEmpty()),
                      Field(&UpToDataProjectParts::notUpToDate,
                            ElementsAre(updatedProjectPartContainer1, projectPartContainer2))));
}

TEST_F(ProjectPartsManager, ProjectPartAdded)
{
    manager.update({projectPartContainer1});

    ASSERT_THAT(manager.projectParts(), ElementsAre(projectPartContainer1));
}

TEST_F(ProjectPartsManager, ProjectPartAddedWithProjectPartAlreadyInTheDatabase)
{
    ON_CALL(mockProjectPartsStorage, fetchProjectParts(_))
        .WillByDefault(Return(ProjectPartContainers{projectPartContainer1}));

    manager.update({projectPartContainer1, projectPartContainer2});

    ASSERT_THAT(manager.projectParts(), ElementsAre(projectPartContainer1, projectPartContainer2));
}

TEST_F(ProjectPartsManager, ProjectPartAddedWithOlderProjectPartAlreadyInTheDatabase)
{
    ON_CALL(mockProjectPartsStorage, fetchProjectParts(_))
        .WillByDefault(Return(ProjectPartContainers{projectPartContainer1}));

    manager.update({updatedProjectPartContainer1, projectPartContainer2});

    ASSERT_THAT(manager.projectParts(),
                ElementsAre(updatedProjectPartContainer1, projectPartContainer2));
}

TEST_F(ProjectPartsManager, FilteredProjectPartAdded)
{
    manager.update({projectPartContainer1});

    manager.update({projectPartContainer1});

    ASSERT_THAT(manager.projectParts(), ElementsAre(projectPartContainer1));
}

TEST_F(ProjectPartsManager, DoNotUpdateNotNewProjectPart)
{
    manager.update({projectPartContainer1});

    auto projectParts = manager.update({projectPartContainer1});

    ASSERT_THAT(projectParts,
                AllOf(Field(&UpToDataProjectParts::upToDate, ElementsAre(projectPartContainer1)),
                      Field(&UpToDataProjectParts::notUpToDate, IsEmpty())));
}

TEST_F(ProjectPartsManager, NoDuplicateProjectPartAfterUpdatingWithNotNewProjectPart)
{
    manager.update({projectPartContainer1});

    auto updatedProjectParts = manager.update({projectPartContainer1});

    ASSERT_THAT(manager.projectParts(), ElementsAre(projectPartContainer1));
}

TEST_F(ProjectPartsManager, MergeProjectParts)
{
    manager.mergeProjectParts({projectPartContainer1, projectPartContainer2});

    ASSERT_THAT(manager.projectParts(), ElementsAre(projectPartContainer1, projectPartContainer2));
}

TEST_F(ProjectPartsManager, MergeProjectMultipleTimesParts)
{
    manager.mergeProjectParts({projectPartContainer2});

    manager.mergeProjectParts({projectPartContainer1});

    ASSERT_THAT(manager.projectParts(), ElementsAre(projectPartContainer1, projectPartContainer2));
}

TEST_F(ProjectPartsManager, GetNewProjectParts)
{
    auto newProjectParts = manager.filterProjectParts({projectPartContainer1, projectPartContainer2},
                                                      {projectPartContainer2});

    ASSERT_THAT(newProjectParts, ElementsAre(projectPartContainer1));
}

TEST_F(ProjectPartsManager, GetUpdatedProjectPart)
{
    manager.update({projectPartContainer1, projectPartContainer2});

    auto projectParts = manager.update({updatedProjectPartContainer1});

    ASSERT_THAT(projectParts,
                AllOf(Field(&UpToDataProjectParts::upToDate, IsEmpty()),
                      Field(&UpToDataProjectParts::notUpToDate,
                            ElementsAre(updatedProjectPartContainer1))));
}

TEST_F(ProjectPartsManager, ProjectPartIsReplacedWithUpdatedProjectPart)
{
    manager.update({projectPartContainer1, projectPartContainer2});

    manager.update({updatedProjectPartContainer1});

    ASSERT_THAT(manager.projectParts(),
                ElementsAre(updatedProjectPartContainer1, projectPartContainer2));
}

TEST_F(ProjectPartsManager, Remove)
{
    manager.update({projectPartContainer1, projectPartContainer2});

    manager.remove({projectPartContainer1.projectPartId});

    ASSERT_THAT(manager.projectParts(), ElementsAre(projectPartContainer2));
}

TEST_F(ProjectPartsManager, GetProjectById)
{
    manager.update({projectPartContainer1, projectPartContainer2});

    auto projectPartContainers = manager.projects({projectPartContainer1.projectPartId});

    ASSERT_THAT(projectPartContainers, ElementsAre(projectPartContainer1));
}

TEST_F(ProjectPartsManager, GetProjectsByIds)
{
    manager.update({projectPartContainer1, projectPartContainer2});

    auto projectPartContainers = manager.projects(
        {projectPartContainer1.projectPartId, projectPartContainer2.projectPartId});

    ASSERT_THAT(projectPartContainers, UnorderedElementsAre(projectPartContainer1, projectPartContainer2));
}

TEST_F(ProjectPartsManager, UpdateDeferred)
{
    auto projectPartContainers = manager.update({projectPartContainer1, projectPartContainer2});

    manager.updateDeferred({projectPartContainer1});

    ASSERT_THAT(manager.deferredUpdates(), ElementsAre(projectPartContainer1));
}

TEST_F(ProjectPartsManager, NotUpdateDeferred)
{
    manager.update({projectPartContainer1, projectPartContainer2});

    ASSERT_THAT(manager.deferredUpdates(), IsEmpty());
}

TEST_F(ProjectPartsManager, UpdateDeferredCleansDeferredUpdates)
{
    manager.update({projectPartContainer1, projectPartContainer2});
    manager.updateDeferred({projectPartContainer1});

    manager.deferredUpdates();

    ASSERT_THAT(manager.deferredUpdates(), IsEmpty());
}

TEST_F(ProjectPartsManager, UpdateCallsIfNewProjectPartIsAdded)
{
    EXPECT_CALL(mockProjectPartsStorage,
                fetchProjectParts(ElementsAre(Eq(projectPartContainer1.projectPartId))));
    EXPECT_CALL(mockProjectPartsStorage, updateProjectParts(ElementsAre(projectPartContainer1)));
    EXPECT_CALL(mockPrecompiledHeaderStorage,
                deleteProjectPrecompiledHeaders(ElementsAre(projectPartContainer1.projectPartId)));
    EXPECT_CALL(mockProjectPartsStorage, resetIndexingTimeStamps(ElementsAre(projectPartContainer1)));

    manager.update({projectPartContainer1});
}

TEST_F(ProjectPartsManager, UpdateCallsNotUpdateProjectPartsInStorageIfNoNewerProjectPartsExists)
{
    manager.update({projectPartContainer1});

    EXPECT_CALL(mockProjectPartsStorage, updateProjectParts(ElementsAre(projectPartContainer1))).Times(0);

    manager.update({projectPartContainer1});
}

TEST_F(ProjectPartsManager, UpdateCallsNotFetchProjectPartsInStorageIfNoNewerProjectPartsExists)
{
    manager.update({projectPartContainer1});

    EXPECT_CALL(mockProjectPartsStorage,
                fetchProjectParts(ElementsAre(Eq(projectPartContainer1.projectPartId))))
        .Times(0);

    manager.update({projectPartContainer1});
}

TEST_F(ProjectPartsManager, UpdateCallsNotDeleteProjectPrecompiledHeadersIfNoNewerProjectPartsExists)
{
    manager.update({projectPartContainer1});

    EXPECT_CALL(mockPrecompiledHeaderStorage,
                deleteProjectPrecompiledHeaders(ElementsAre(projectPartContainer1.projectPartId)))
        .Times(0);

    manager.update({projectPartContainer1});
}

TEST_F(ProjectPartsManager, UpdateCallsNotResetIndexingTimeStampsIfNoNewerProjectPartsExists)
{
    manager.update({projectPartContainer1});

    EXPECT_CALL(mockProjectPartsStorage, resetIndexingTimeStamps(ElementsAre(projectPartContainer1)))
        .Times(0);

    manager.update({projectPartContainer1});
}

TEST_F(ProjectPartsManager, UpdateCallsIfOldProjectPartIsAdded)
{
    EXPECT_CALL(mockProjectPartsStorage,
                fetchProjectParts(ElementsAre(Eq(projectPartContainer1.projectPartId))))
        .WillRepeatedly(Return(ProjectPartContainers{projectPartContainer1}));
    EXPECT_CALL(mockProjectPartsStorage, updateProjectParts(ElementsAre(projectPartContainer1))).Times(0);
    EXPECT_CALL(mockPrecompiledHeaderStorage,
                deleteProjectPrecompiledHeaders(ElementsAre(projectPartContainer1.projectPartId)))
        .Times(0);
    EXPECT_CALL(mockProjectPartsStorage, resetIndexingTimeStamps(ElementsAre(projectPartContainer1)))
        .Times(0);

    manager.update({projectPartContainer1});
}

TEST_F(ProjectPartsManager, UpdateCallsIfUpdatedProjectPartIsAdded)
{
    manager.update({projectPartContainer1});

    EXPECT_CALL(mockProjectPartsStorage,
                fetchProjectParts(ElementsAre(Eq(projectPartContainer1.projectPartId))))
        .WillRepeatedly(Return(ProjectPartContainers{projectPartContainer1}));
    EXPECT_CALL(mockProjectPartsStorage,
                updateProjectParts(ElementsAre(updatedProjectPartContainer1)));
    EXPECT_CALL(mockPrecompiledHeaderStorage,
                deleteProjectPrecompiledHeaders(ElementsAre(projectPartContainer1.projectPartId)));
    EXPECT_CALL(mockProjectPartsStorage,
                resetIndexingTimeStamps(ElementsAre(updatedProjectPartContainer1)));

    manager.update({updatedProjectPartContainer1});
}

TEST_F(ProjectPartsManager,
       GetProjectPartForAddingProjectPartWithProjectPartAlreadyInTheDatabaseButNoPrecompiledHeader)
{
    ON_CALL(mockProjectPartsStorage, fetchProjectParts(_))
        .WillByDefault(Return(ProjectPartContainers{projectPartContainerWithoutPrecompiledHeader1}));

    auto projectParts = manager.update({projectPartContainer1});

    ASSERT_THAT(projectParts,
                AllOf(Field(&UpToDataProjectParts::upToDate, IsEmpty()),
                      Field(&UpToDataProjectParts::notUpToDate, ElementsAre(projectPartContainer1))));
}

TEST_F(ProjectPartsManager, ProjectPartAddedWithProjectPartAlreadyInTheDatabaseButWithoutEntries)
{
    ON_CALL(mockProjectPartsStorage, fetchProjectParts(_))
        .WillByDefault(Return(ProjectPartContainers{nullProjectPartContainer1}));

    manager.update({projectPartContainer1});

    ASSERT_THAT(manager.projectParts(), ElementsAre(projectPartContainer1));
}

} // namespace