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#include <stdio.h>

#include "platform/nexus_core.hpp"
#include "platform/nexus_node.hpp"
#include "thread/key_manager.hpp"

namespace ot {
namespace Nexus {

/**
 * Time to advance for a node to form a network and become leader, in milliseconds.
 */
static constexpr uint32_t kFormNetworkTime = 13 * 1000;

/**
 * Time to advance for a node to join as a child and upgrade to a router, in milliseconds.
 */
static constexpr uint32_t kAttachToRouterTime = 200 * 1000;

/**
 * Time to advance for the network to stabilize, in milliseconds.
 */
static constexpr uint32_t kStabilizationTime = 10 * 1000;

/**
 * Max time to wait for an MLE Advertisement, in milliseconds.
 * The max MLE advertisement interval is 32 seconds.
 */
static constexpr uint32_t kMaxAdvertisementTime = 35 * 1000;

/**
 * Initial Key Sequence Counter value.
 */
static constexpr uint32_t kInitialKeySequence = 127;

void Test5_8_3(void)
{
    /**
     * 5.8.3 Key Increment of 1 With Roll-over
     *
     * 5.8.3.1 Topology
     * - Leader
     * - Router_1 (DUT)
     *
     * 5.8.3.2 Purpose & Description
     * The purpose of this test case is to verify that the DUT properly decrypts MAC and MLE packets secured with a Key
     *   Index incremented by 1 (that causes a rollover) and switches to the new key.
     *
     * Spec Reference                  | V1.1 Section | V1.3.0 Section
     * --------------------------------|--------------|---------------
     * MLE Message Security Processing | 7.3.1        | 7.3.1
     */

    Core nexus;

    Node &leader  = nexus.CreateNode();
    Node &router1 = nexus.CreateNode();

    leader.SetName("LEADER");
    router1.SetName("ROUTER_1");

    nexus.AdvanceTime(0);

    SuccessOrQuit(Instance::SetGlobalLogLevel(kLogLevelNote));

    Log("---------------------------------------------------------------------------------------");
    Log("Step 1: Leader forms network with KeySequenceCounter = 127");

    /**
     * Step 1: Leader
     * - Description: Harness instructs the device to form the network. Starts the network using KeySequenceCounter =
     *   0x7F (127).
     * - Pass Criteria: N/A
     */
    leader.Form();
    leader.Get<KeyManager>().SetCurrentKeySequence(kInitialKeySequence, KeyManager::kForceUpdate);
    nexus.AdvanceTime(kFormNetworkTime);
    VerifyOrQuit(leader.Get<Mle::Mle>().IsLeader());

    Log("---------------------------------------------------------------------------------------");
    Log("Step 2: Router_1 (DUT) attaches to the network");

    /**
     * Step 2: Router_1 (DUT)
     * - Description: Automatically attaches to the network and sends MLE Advertisements.
     * - Pass Criteria:
     *   - The DUT MUST send MLE Advertisements with the MLE Auxiliary Security Header containing the following:
     *     - Key ID Mode = 0x02 (2)
     *     - Key Source = 0x7F (127)
     *     - Key Index = 0x80 (128)
     */
    router1.Join(leader);
    nexus.AdvanceTime(kAttachToRouterTime);
    VerifyOrQuit(router1.Get<Mle::Mle>().IsRouter());

    Log("---------------------------------------------------------------------------------------");
    Log("Step 3: Leader sends Echo Request to DUT");

    /**
     * Step 3: Leader
     * - Description: Harness instructs the device to send an ICMPv6 Echo Request to the DUT.
     * - Pass Criteria:
     *   - The DUT MUST respond with an ICMPv6 Echo Reply with MAC Auxiliary Security Header containing:
     *     - Key ID Mode = 0x01 (1)
     *     - Key Index = 0x80 (128)
     */
    nexus.SendAndVerifyEchoRequest(leader, router1.Get<Mle::Mle>().GetLinkLocalAddress());

    Log("---------------------------------------------------------------------------------------");
    Log("Step 4: Leader increments KeySequenceCounter by 1");

    /**
     * Step 4: Leader
     * - Description: Harness instructs the device to increment KeySequenceCounter by 1 to force a key switch. The DUT
     *   is expected to set incoming frame counters to 0 for all existing devices and to send subsequent MAC and MLE
     *   frames with Key Index = 1.
     * - Pass Criteria: N/A
     */
    leader.Get<KeyManager>().SetCurrentKeySequence(kInitialKeySequence + 1, KeyManager::kForceUpdate);
    nexus.AdvanceTime(kStabilizationTime);

    Log("---------------------------------------------------------------------------------------");
    Log("Step 5: Leader sends Echo Request to DUT");

    /**
     * Step 5: Leader
     * - Description: Harness instructs the device to send an ICMPv6 Echo Request to the DUT.
     * - Pass Criteria:
     *   - The DUT MUST respond with an ICMPv6 Echo Reply with MAC Auxiliary Security Header containing:
     *     - Key ID Mode = 0x01 (1)
     *     - Key Index = 0x01 (1)
     */
    nexus.SendAndVerifyEchoRequest(leader, router1.Get<Mle::Mle>().GetLinkLocalAddress());

    Log("---------------------------------------------------------------------------------------");
    Log("Step 6: DUT reflects Key Index update in Advertisements");

    /**
     * Step 6: Router_1 (DUT)
     * - Description: Automatically reflects the Key Index update in its Advertisements.
     * - Pass Criteria:
     *   - The DUT MUST send MLE Advertisements with MLE Auxiliary Security Header containing:
     *     - Key ID Mode = 0x02 (2)
     *     - Key Index = 0x01 (1)
     */
    nexus.AdvanceTime(kMaxAdvertisementTime);
    VerifyOrQuit(router1.Get<KeyManager>().GetCurrentKeySequence() == kInitialKeySequence + 1);

    nexus.SaveTestInfo("test_1_1_5_8_3.json");
}

} // namespace Nexus
} // namespace ot

int main(void)
{
    ot::Nexus::Test5_8_3();
    printf("All tests passed\n");
    return 0;
}
