/**
 * Copyright © 2019 IBM Corporation
 *
 * 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 "action.hpp"
#include "configuration.hpp"
#include "mock_action.hpp"
#include "rail.hpp"
#include "sensor_monitoring.hpp"

#include <memory>
#include <optional>
#include <utility>
#include <vector>

#include <gtest/gtest.h>

using namespace phosphor::power::regulators;

TEST(RailTests, Constructor)
{
    // Test where only required parameters are specified
    {
        Rail rail{"vdd0"};
        EXPECT_EQ(rail.getID(), "vdd0");
        EXPECT_EQ(rail.getConfiguration(), nullptr);
        EXPECT_EQ(rail.getSensorMonitoring(), nullptr);
    }

    // Test where all parameters are specified
    {
        // Create Configuration
        std::optional<double> volts{1.3};
        std::vector<std::unique_ptr<Action>> actions{};
        actions.push_back(std::make_unique<MockAction>());
        actions.push_back(std::make_unique<MockAction>());
        std::unique_ptr<Configuration> configuration =
            std::make_unique<Configuration>(volts, std::move(actions));

        // Create SensorMonitoring
        actions.clear();
        actions.push_back(std::make_unique<MockAction>());
        std::unique_ptr<SensorMonitoring> sensorMonitoring =
            std::make_unique<SensorMonitoring>(std::move(actions));

        // Create Rail
        Rail rail{"vddr1", std::move(configuration),
                  std::move(sensorMonitoring)};
        EXPECT_EQ(rail.getID(), "vddr1");
        EXPECT_NE(rail.getConfiguration(), nullptr);
        EXPECT_EQ(rail.getConfiguration()->getVolts().has_value(), true);
        EXPECT_EQ(rail.getConfiguration()->getVolts().value(), 1.3);
        EXPECT_EQ(rail.getConfiguration()->getActions().size(), 2);
        EXPECT_NE(rail.getSensorMonitoring(), nullptr);
        EXPECT_EQ(rail.getSensorMonitoring()->getActions().size(), 1);
    }
}

TEST(RailTests, GetConfiguration)
{
    // Test where Configuration was not specified in constructor
    {
        Rail rail{"vdd0"};
        EXPECT_EQ(rail.getConfiguration(), nullptr);
    }

    // Test where Configuration was specified in constructor
    {
        // Create Configuration
        std::optional<double> volts{3.2};
        std::vector<std::unique_ptr<Action>> actions{};
        actions.push_back(std::make_unique<MockAction>());
        std::unique_ptr<Configuration> configuration =
            std::make_unique<Configuration>(volts, std::move(actions));

        // Create Rail
        Rail rail{"vddr1", std::move(configuration)};
        EXPECT_NE(rail.getConfiguration(), nullptr);
        EXPECT_EQ(rail.getConfiguration()->getVolts().has_value(), true);
        EXPECT_EQ(rail.getConfiguration()->getVolts().value(), 3.2);
        EXPECT_EQ(rail.getConfiguration()->getActions().size(), 1);
    }
}

TEST(RailTests, GetID)
{
    Rail rail{"vio2"};
    EXPECT_EQ(rail.getID(), "vio2");
}

TEST(RailTests, GetSensorMonitoring)
{
    // Test where SensorMonitoring was not specified in constructor
    {
        Rail rail{"vdd0", nullptr, nullptr};
        EXPECT_EQ(rail.getSensorMonitoring(), nullptr);
    }

    // Test where SensorMonitoring was specified in constructor
    {
        std::unique_ptr<Configuration> configuration{};

        // Create SensorMonitoring
        std::vector<std::unique_ptr<Action>> actions{};
        actions.push_back(std::make_unique<MockAction>());
        actions.push_back(std::make_unique<MockAction>());
        std::unique_ptr<SensorMonitoring> sensorMonitoring =
            std::make_unique<SensorMonitoring>(std::move(actions));

        // Create Rail
        Rail rail{"vddr1", std::move(configuration),
                  std::move(sensorMonitoring)};
        EXPECT_NE(rail.getSensorMonitoring(), nullptr);
        EXPECT_EQ(rail.getSensorMonitoring()->getActions().size(), 2);
    }
}