#include <sdbusplus/bus.hpp>
#include <gtest/gtest.h>

#include "types.hpp"
#include "manager.hpp"
#include "mocked_property_change_listener.hpp"

using ::testing::_;

namespace phosphor
{
namespace time
{

class TestManager : public testing::Test
{
    public:
        sdbusplus::bus::bus bus;
        Manager manager;
        MockPropertyChangeListner listener1;
        MockPropertyChangeListner listener2;

        TestManager()
            : bus(sdbusplus::bus::new_default()),
              manager(bus)
        {
            // Add two mocked listeners so that we can test
            // the behavior related to listeners
            manager.addListener(&listener1);
            manager.addListener(&listener2);
        }

        // Proxies for Manager's private members and functions
        Mode getTimeMode()
        {
            return manager.timeMode;
        }
        Owner getTimeOwner()
        {
            return manager.timeOwner;
        }
        bool hostOn()
        {
            return manager.hostOn;
        }
        std::string getRequestedMode()
        {
            return manager.requestedMode;
        }
        std::string getRequestedOwner()
        {
            return manager.requestedOwner;
        }
        void notifyPropertyChanged(const std::string& key,
                                   const std::string& value)
        {
            manager.onPropertyChanged(key, value);
        }
        void notifyOnHostState(bool hostOn)
        {
            manager.onHostState(hostOn);
        }
};

TEST_F(TestManager, DISABLED_empty)
{
    EXPECT_FALSE(hostOn());
    EXPECT_EQ("", getRequestedMode());
    EXPECT_EQ("", getRequestedOwner());

    // Default mode/owner is MANUAL/BOTH
    EXPECT_EQ(Mode::Manual, getTimeMode());
    EXPECT_EQ(Owner::Both, getTimeOwner());
}


TEST_F(TestManager, DISABLED_hostStateChange)
{
    notifyOnHostState(true);
    EXPECT_TRUE(hostOn());
    notifyOnHostState(false);
    EXPECT_FALSE(hostOn());
}

TEST_F(TestManager, DISABLED_propertyChanged)
{
    // When host is off, property change will be notified to listeners
    EXPECT_FALSE(hostOn());

    // Check mocked listeners shall receive notifications on property changed
    EXPECT_CALL(listener1, onModeChanged(Mode::Manual)).Times(1);
    EXPECT_CALL(listener1, onOwnerChanged(Owner::Host)).Times(1);
    EXPECT_CALL(listener2, onModeChanged(Mode::Manual)).Times(1);
    EXPECT_CALL(listener2, onOwnerChanged(Owner::Host)).Times(1);

    notifyPropertyChanged(
        "TimeSyncMethod",
        "xyz.openbmc_project.Time.Synchronization.Method.Manual");
    notifyPropertyChanged(
        "TimeOwner",
        "xyz.openbmc_project.Time.Owner.Owners.Host");

    EXPECT_EQ("", getRequestedMode());
    EXPECT_EQ("", getRequestedOwner());

    // When host is on, property changes are saved as requested ones
    notifyOnHostState(true);

    // Check mocked listeners shall not receive notifications
    EXPECT_CALL(listener1, onModeChanged(Mode::Manual)).Times(0);
    EXPECT_CALL(listener1, onOwnerChanged(Owner::Host)).Times(0);
    EXPECT_CALL(listener2, onModeChanged(Mode::Manual)).Times(0);
    EXPECT_CALL(listener2, onOwnerChanged(Owner::Host)).Times(0);

    notifyPropertyChanged(
        "TimeSyncMethod",
        "xyz.openbmc_project.Time.Synchronization.Method.NTP");
    notifyPropertyChanged(
        "TimeOwner",
        "xyz.openbmc_project.Time.Owner.Owners.Split");

    EXPECT_EQ("xyz.openbmc_project.Time.Synchronization.Method.NTP",
              getRequestedMode());
    EXPECT_EQ("xyz.openbmc_project.Time.Owner.Owners.Split",
              getRequestedOwner());


    // When host becomes off, the requested mode/owner shall be notified
    // to listeners, and be cleared
    EXPECT_CALL(listener1, onModeChanged(Mode::NTP)).Times(1);
    EXPECT_CALL(listener1, onOwnerChanged(Owner::Split)).Times(1);
    EXPECT_CALL(listener2, onModeChanged(Mode::NTP)).Times(1);
    EXPECT_CALL(listener2, onOwnerChanged(Owner::Split)).Times(1);

    notifyOnHostState(false);

    EXPECT_EQ("", getRequestedMode());
    EXPECT_EQ("", getRequestedOwner());

    // When host is on, and invalid property is changed,
    // verify the code asserts because it shall never occur
    notifyOnHostState(true);
    ASSERT_DEATH(notifyPropertyChanged("invalid property", "whatever"), "");
}

TEST_F(TestManager, DISABLED_propertyChangedAndChangedbackWhenHostOn)
{
    // Property is now MANUAL/HOST
    notifyPropertyChanged(
        "TimeSyncMethod",
        "xyz.openbmc_project.Time.Synchronization.Method.Manual");
    notifyPropertyChanged(
        "TimeOwner",
        "xyz.openbmc_project.Time.Owner.Owners.Host");

    // Set host on
    notifyOnHostState(true);

    // Check mocked listeners shall not receive notifications
    EXPECT_CALL(listener1, onModeChanged(_)).Times(0);
    EXPECT_CALL(listener1, onOwnerChanged(_)).Times(0);
    EXPECT_CALL(listener2, onModeChanged(_)).Times(0);
    EXPECT_CALL(listener2, onOwnerChanged(_)).Times(0);

    notifyPropertyChanged(
        "TimeSyncMethod",
        "xyz.openbmc_project.Time.Synchronization.Method.NTP");
    notifyPropertyChanged(
        "TimeOwner",
        "xyz.openbmc_project.Time.Owner.Owners.Split");

    // Saved as requested mode/owner
    EXPECT_EQ("xyz.openbmc_project.Time.Synchronization.Method.NTP",
              getRequestedMode());
    EXPECT_EQ("xyz.openbmc_project.Time.Owner.Owners.Split",
              getRequestedOwner());

    // Property changed back to MANUAL/HOST
    notifyPropertyChanged(
        "TimeSyncMethod",
        "xyz.openbmc_project.Time.Synchronization.Method.Manual");
    notifyPropertyChanged(
        "TimeOwner",
        "xyz.openbmc_project.Time.Owner.Owners.Host");

    // Requested mode/owner shall be updated
    EXPECT_EQ("xyz.openbmc_project.Time.Synchronization.Method.Manual",
              getRequestedMode());
    EXPECT_EQ("xyz.openbmc_project.Time.Owner.Owners.Host",
              getRequestedOwner());

    // Because the latest mode/owner is the same as when host is off,
    // The listeners shall not be notified, and requested mode/owner
    // shall be cleared
    EXPECT_CALL(listener1, onModeChanged(_)).Times(0);
    EXPECT_CALL(listener1, onOwnerChanged(_)).Times(0);
    EXPECT_CALL(listener2, onModeChanged(_)).Times(0);
    EXPECT_CALL(listener2, onOwnerChanged(_)).Times(0);

    notifyOnHostState(false);

    EXPECT_EQ("", getRequestedMode());
    EXPECT_EQ("", getRequestedOwner());
}

// TODO: if gmock is ready, add case to test
// updateNtpSetting() and updateNetworkSetting()

}
}