// Copyright 2022 The Dawn Authors
//
// 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.

#include "dawn/tests/AdapterTestConfig.h"

#include <initializer_list>
#include <ostream>
#include <string>
#include <vector>

#include "dawn/common/Assert.h"
#include "dawn/webgpu_cpp.h"

BackendTestConfig::BackendTestConfig(wgpu::BackendType backendType,
                                     std::initializer_list<const char*> forceEnabledWorkarounds,
                                     std::initializer_list<const char*> forceDisabledWorkarounds)
    : backendType(backendType),
      forceEnabledWorkarounds(forceEnabledWorkarounds),
      forceDisabledWorkarounds(forceDisabledWorkarounds) {}

BackendTestConfig D3D12Backend(std::initializer_list<const char*> forceEnabledWorkarounds,
                               std::initializer_list<const char*> forceDisabledWorkarounds) {
    return BackendTestConfig(wgpu::BackendType::D3D12, forceEnabledWorkarounds,
                             forceDisabledWorkarounds);
}

BackendTestConfig MetalBackend(std::initializer_list<const char*> forceEnabledWorkarounds,
                               std::initializer_list<const char*> forceDisabledWorkarounds) {
    return BackendTestConfig(wgpu::BackendType::Metal, forceEnabledWorkarounds,
                             forceDisabledWorkarounds);
}

BackendTestConfig NullBackend(std::initializer_list<const char*> forceEnabledWorkarounds,
                              std::initializer_list<const char*> forceDisabledWorkarounds) {
    return BackendTestConfig(wgpu::BackendType::Null, forceEnabledWorkarounds,
                             forceDisabledWorkarounds);
}

BackendTestConfig OpenGLBackend(std::initializer_list<const char*> forceEnabledWorkarounds,
                                std::initializer_list<const char*> forceDisabledWorkarounds) {
    return BackendTestConfig(wgpu::BackendType::OpenGL, forceEnabledWorkarounds,
                             forceDisabledWorkarounds);
}

BackendTestConfig OpenGLESBackend(std::initializer_list<const char*> forceEnabledWorkarounds,
                                  std::initializer_list<const char*> forceDisabledWorkarounds) {
    return BackendTestConfig(wgpu::BackendType::OpenGLES, forceEnabledWorkarounds,
                             forceDisabledWorkarounds);
}

BackendTestConfig VulkanBackend(std::initializer_list<const char*> forceEnabledWorkarounds,
                                std::initializer_list<const char*> forceDisabledWorkarounds) {
    return BackendTestConfig(wgpu::BackendType::Vulkan, forceEnabledWorkarounds,
                             forceDisabledWorkarounds);
}

TestAdapterProperties::TestAdapterProperties(const wgpu::AdapterProperties& properties,
                                             bool selected)
    : wgpu::AdapterProperties(properties), adapterName(properties.name), selected(selected) {}

std::string TestAdapterProperties::ParamName() const {
    switch (backendType) {
        case wgpu::BackendType::D3D12:
            return "D3D12";
        case wgpu::BackendType::Metal:
            return "Metal";
        case wgpu::BackendType::Null:
            return "Null";
        case wgpu::BackendType::OpenGL:
            return "OpenGL";
        case wgpu::BackendType::OpenGLES:
            return "OpenGLES";
        case wgpu::BackendType::Vulkan:
            return "Vulkan";
        default:
            UNREACHABLE();
    }
}

std::string TestAdapterProperties::AdapterTypeName() const {
    switch (adapterType) {
        case wgpu::AdapterType::DiscreteGPU:
            return "Discrete GPU";
        case wgpu::AdapterType::IntegratedGPU:
            return "Integrated GPU";
        case wgpu::AdapterType::CPU:
            return "CPU";
        case wgpu::AdapterType::Unknown:
            return "Unknown";
        default:
            UNREACHABLE();
    }
}

AdapterTestParam::AdapterTestParam(const BackendTestConfig& config,
                                   const TestAdapterProperties& adapterProperties)
    : adapterProperties(adapterProperties),
      forceEnabledWorkarounds(config.forceEnabledWorkarounds),
      forceDisabledWorkarounds(config.forceDisabledWorkarounds) {}

std::ostream& operator<<(std::ostream& os, const AdapterTestParam& param) {
    os << param.adapterProperties.ParamName() << " " << param.adapterProperties.adapterName;

    // In a Windows Remote Desktop session there are two adapters named "Microsoft Basic Render
    // Driver" with different adapter types. We must differentiate them to avoid any tests using the
    // same name.
    if (param.adapterProperties.deviceID == 0x008C) {
        std::string adapterType = param.adapterProperties.AdapterTypeName();
        os << " " << adapterType;
    }

    for (const char* forceEnabledWorkaround : param.forceEnabledWorkarounds) {
        os << "; e:" << forceEnabledWorkaround;
    }
    for (const char* forceDisabledWorkaround : param.forceDisabledWorkarounds) {
        os << "; d:" << forceDisabledWorkaround;
    }
    return os;
}