/* Copyright (c) 2010 - 2020, Nordic Semiconductor ASA
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form, except as embedded into a Nordic
 *    Semiconductor ASA integrated circuit in a product or a software update for
 *    such product, must reproduce the above copyright notice, this list of
 *    conditions and the following disclaimer in the documentation and/or other
 *    materials provided with the distribution.
 *
 * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
 *    contributors may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * 4. This software, with or without modification, must only be used with a
 *    Nordic Semiconductor ASA integrated circuit.
 *
 * 5. Any software provided in binary form under this license must not be reverse
 *    engineered, decompiled, modified and/or disassembled.
 *
 * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 */

#include "light_lightness_client.h"
#include "model_common.h"

#include <stdint.h>
#include <stddef.h>
#include <string.h>
#include "access.h"
#include "access_config.h"
#include "nrf_mesh_assert.h"
#include "nrf_mesh_utils.h"
#include "nordic_common.h"


/** Opcode Handlers */

static void status_handle(access_model_handle_t handle,
                          const access_message_rx_t * p_rx_msg, void * p_args)
{
    light_lightness_client_t * p_client = (light_lightness_client_t *) p_args;
    light_lightness_status_params_t in_data = {0};

    if (p_rx_msg->length == LIGHT_LIGHTNESS_STATUS_MINLEN ||
        p_rx_msg->length == LIGHT_LIGHTNESS_STATUS_MAXLEN)
    {
        light_lightness_status_msg_pkt_t * p_msg_params_packed =
            (light_lightness_status_msg_pkt_t *) p_rx_msg->p_data;

        if (p_rx_msg->length == LIGHT_LIGHTNESS_STATUS_MINLEN)
        {
            in_data.present_lightness = p_msg_params_packed->present_lightness;
            in_data.target_lightness = p_msg_params_packed->present_lightness;
            in_data.remaining_time_ms = 0;
        }
        else
        {
            in_data.present_lightness = p_msg_params_packed->present_lightness;
            in_data.target_lightness = p_msg_params_packed->target_lightness;
            in_data.remaining_time_ms =
                model_transition_time_decode(p_msg_params_packed->remaining_time);
        }

        p_client->settings.p_callbacks->lightness_status_cb(p_client,
                                                            &p_rx_msg->meta_data,
                                                            &in_data);
    }
}

static void linear_status_handle(access_model_handle_t handle,
                                 const access_message_rx_t * p_rx_msg,
                                 void * p_args)
{
    light_lightness_client_t * p_client = (light_lightness_client_t *) p_args;
    light_lightness_linear_status_params_t in_data = {0};

    if (p_rx_msg->length == LIGHT_LIGHTNESS_LINEAR_STATUS_MINLEN ||
        p_rx_msg->length == LIGHT_LIGHTNESS_LINEAR_STATUS_MAXLEN)
    {
        light_lightness_linear_status_msg_pkt_t * p_msg_params_packed =
            (light_lightness_linear_status_msg_pkt_t *) p_rx_msg->p_data;

        if (p_rx_msg->length == LIGHT_LIGHTNESS_LINEAR_STATUS_MINLEN)
        {
            in_data.present_lightness = p_msg_params_packed->present_lightness;
            in_data.target_lightness = p_msg_params_packed->present_lightness;
            in_data.remaining_time_ms = 0;
        }
        else
        {
            in_data.present_lightness = p_msg_params_packed->present_lightness;
            in_data.target_lightness = p_msg_params_packed->target_lightness;
            in_data.remaining_time_ms =
                model_transition_time_decode(p_msg_params_packed->remaining_time);
        }

        p_client->settings.p_callbacks->lightness_linear_status_cb(p_client,
                                                                   &p_rx_msg->meta_data,
                                                                   &in_data);
    }
}

static void last_status_handle(access_model_handle_t handle,
                               const access_message_rx_t * p_rx_msg,
                               void * p_args)
{
    light_lightness_client_t * p_client = (light_lightness_client_t *) p_args;
    light_lightness_last_status_params_t in_data = {0};

    if (p_rx_msg->length == LIGHT_LIGHTNESS_LAST_STATUS_LEN)
    {
        light_lightness_last_status_msg_pkt_t * p_msg_params_packed =
            (light_lightness_last_status_msg_pkt_t *) p_rx_msg->p_data;

        in_data.lightness = p_msg_params_packed->lightness;
        p_client->settings.p_callbacks->lightness_last_status_cb(p_client,
                                                                 &p_rx_msg->meta_data,
                                                                 &in_data);
    }
}

static void default_status_handle(access_model_handle_t handle,
                                  const access_message_rx_t * p_rx_msg,
                                  void * p_args)
{
    light_lightness_client_t * p_client = (light_lightness_client_t *) p_args;
    light_lightness_default_status_params_t in_data = {0};

    if (p_rx_msg->length == LIGHT_LIGHTNESS_DEFAULT_STATUS_LEN)
    {
        light_lightness_default_status_msg_pkt_t * p_msg_params_packed =
            (light_lightness_default_status_msg_pkt_t *) p_rx_msg->p_data;

        in_data.lightness = p_msg_params_packed->lightness;
        p_client->settings.p_callbacks->lightness_default_status_cb(p_client,
                                                                    &p_rx_msg->meta_data,
                                                                    &in_data);
    }
}

static void range_status_handle(access_model_handle_t handle,
                                const access_message_rx_t * p_rx_msg,
                                void * p_args)
{
    light_lightness_client_t * p_client = (light_lightness_client_t *) p_args;
    light_lightness_range_status_params_t in_data = {0};

    if (p_rx_msg->length == LIGHT_LIGHTNESS_RANGE_STATUS_LEN)
    {
        light_lightness_range_status_msg_pkt_t * p_msg_params_packed =
            (light_lightness_range_status_msg_pkt_t *) p_rx_msg->p_data;

        in_data.status = p_msg_params_packed->status;
        in_data.range_min = p_msg_params_packed->range_min;
        in_data.range_max = p_msg_params_packed->range_max;
        p_client->settings.p_callbacks->lightness_range_status_cb(p_client,
                                                                  &p_rx_msg->meta_data,
                                                                  &in_data);
    }
}

static const access_opcode_handler_t m_opcode_handlers[] =
{
    {ACCESS_OPCODE_SIG(LIGHT_LIGHTNESS_OPCODE_STATUS), status_handle},
    {ACCESS_OPCODE_SIG(LIGHT_LIGHTNESS_OPCODE_LINEAR_STATUS), linear_status_handle},
    {ACCESS_OPCODE_SIG(LIGHT_LIGHTNESS_OPCODE_LAST_STATUS), last_status_handle},
    {ACCESS_OPCODE_SIG(LIGHT_LIGHTNESS_OPCODE_DEFAULT_STATUS), default_status_handle},
    {ACCESS_OPCODE_SIG(LIGHT_LIGHTNESS_OPCODE_RANGE_STATUS), range_status_handle},
};

static uint8_t message_set_packet_create(light_lightness_set_msg_pkt_t * p_set,
                                         const light_lightness_set_params_t * p_params,
                                         const model_transition_t * p_transition)
{
    p_set->lightness = p_params->lightness;
    p_set->tid = p_params->tid;

    if (p_transition != NULL)
    {
        p_set->transition_time =
            model_transition_time_encode(p_transition->transition_time_ms);
        p_set->delay = model_delay_encode(p_transition->delay_ms);
        return LIGHT_LIGHTNESS_SET_MAXLEN;
    }
    else
    {
        return LIGHT_LIGHTNESS_SET_MINLEN;
    }
}

static uint8_t message_linear_set_packet_create(light_lightness_linear_set_msg_pkt_t * p_set,
                                                const light_lightness_linear_set_params_t * p_params,
                                                const model_transition_t * p_transition)
{
    p_set->lightness = p_params->lightness;
    p_set->tid = p_params->tid;

    if (p_transition != NULL)
    {
        p_set->transition_time =
            model_transition_time_encode(p_transition->transition_time_ms);
        p_set->delay = model_delay_encode(p_transition->delay_ms);
        return LIGHT_LIGHTNESS_LINEAR_SET_MAXLEN;
    }
    else
    {
        return LIGHT_LIGHTNESS_LINEAR_SET_MINLEN;
    }
}

static uint8_t message_default_set_packet_create(light_lightness_default_set_msg_pkt_t * p_set,
                                                 const light_lightness_default_set_params_t * p_params)
{
    p_set->lightness = p_params->lightness;

    return LIGHT_LIGHTNESS_DEFAULT_SET_LEN;
}

static uint8_t message_range_set_packet_create(light_lightness_range_set_msg_pkt_t * p_set,
                                               const light_lightness_range_set_params_t * p_params)
{
    p_set->range_min = p_params->range_min;
    p_set->range_max = p_params->range_max;

    return LIGHT_LIGHTNESS_RANGE_SET_LEN;
}

static void message_create(light_lightness_client_t * p_client,
                           uint16_t tx_opcode, const uint8_t * p_buffer,
                           uint16_t length, access_message_tx_t * p_message)
{
    p_message->opcode.opcode = tx_opcode;
    p_message->opcode.company_id = ACCESS_COMPANY_ID_NONE;
    p_message->p_buffer = p_buffer;
    p_message->length = length;
    p_message->force_segmented = p_client->settings.force_segmented;
    p_message->transmic_size = p_client->settings.transmic_size;
    p_message->access_token = nrf_mesh_unique_token_get();
}

static void reliable_context_create(light_lightness_client_t * p_client,
                                    uint16_t reply_opcode,
                                    access_reliable_t * p_reliable)
{
    p_reliable->model_handle = p_client->model_handle;
    p_reliable->reply_opcode.opcode = reply_opcode;
    p_reliable->reply_opcode.company_id = ACCESS_COMPANY_ID_NONE;
    p_reliable->timeout = p_client->settings.timeout;
    p_reliable->status_cb = p_client->settings.p_callbacks->ack_transaction_status_cb;
}

static bool is_p_transition_invalid(const model_transition_t * p_transition)
{
    if (p_transition != NULL &&
        (p_transition->transition_time_ms > TRANSITION_TIME_MAX_MS ||
         p_transition->delay_ms > DELAY_TIME_MAX_MS))
    {
        return true;
    }

    return false;
}

/** Interface functions */

uint32_t light_lightness_client_init(light_lightness_client_t * p_client,
                                     uint8_t element_index)
{
    if (p_client == NULL ||
        p_client->settings.p_callbacks == NULL ||
        p_client->settings.p_callbacks->lightness_status_cb == NULL ||
        p_client->settings.p_callbacks->lightness_linear_status_cb == NULL ||
        p_client->settings.p_callbacks->lightness_last_status_cb == NULL ||
        p_client->settings.p_callbacks->lightness_default_status_cb == NULL ||
        p_client->settings.p_callbacks->lightness_range_status_cb == NULL ||
        p_client->settings.p_callbacks->periodic_publish_cb == NULL)
    {
        return NRF_ERROR_NULL;
    }

    if (p_client->settings.timeout == 0)
    {
        p_client->settings.timeout = MODEL_ACKNOWLEDGED_TRANSACTION_TIMEOUT;
    }

    access_model_add_params_t add_params =
    {
        .model_id = ACCESS_MODEL_SIG(LIGHT_LIGHTNESS_CLIENT_MODEL_ID),
        .element_index = element_index,
        .p_opcode_handlers = &m_opcode_handlers[0],
        .opcode_count = ARRAY_SIZE(m_opcode_handlers),
        .p_args = p_client,
        .publish_timeout_cb = p_client->settings.p_callbacks->periodic_publish_cb
    };

    uint32_t status = access_model_add(&add_params, &p_client->model_handle);

    if (status == NRF_SUCCESS)
    {
        status = access_model_subscription_list_alloc(p_client->model_handle);
    }

    return status;
}

uint32_t light_lightness_client_set(light_lightness_client_t * p_client,
                                    const light_lightness_set_params_t * p_params,
                                    const model_transition_t * p_transition)
{
    if (p_client == NULL || p_params == NULL)
    {
        return NRF_ERROR_NULL;
    }

    if (is_p_transition_invalid(p_transition))
    {
        return NRF_ERROR_INVALID_PARAM;
    }

    if (access_reliable_model_is_free(p_client->model_handle))
    {
        uint8_t server_msg_length =
            message_set_packet_create(&p_client->msg_pkt.set, p_params,
                                      p_transition);

        message_create(p_client, LIGHT_LIGHTNESS_OPCODE_SET,
                       (const uint8_t *) &p_client->msg_pkt.set,
                        server_msg_length, &p_client->access_message.message);
        reliable_context_create(p_client, LIGHT_LIGHTNESS_OPCODE_STATUS,
                                &p_client->access_message);

        return access_model_reliable_publish(&p_client->access_message);
    }
    else
    {
        return NRF_ERROR_BUSY;
    }
}

uint32_t light_lightness_client_set_unack(light_lightness_client_t * p_client,
                                          const light_lightness_set_params_t * p_params,
                                          const model_transition_t * p_transition,
                                          uint8_t repeats)
{
    if (p_client == NULL || p_params == NULL)
    {
        return NRF_ERROR_NULL;
    }

    if (is_p_transition_invalid(p_transition))
    {
        return NRF_ERROR_INVALID_PARAM;
    }

    light_lightness_set_msg_pkt_t msg;
    uint8_t server_msg_length = message_set_packet_create(&msg, p_params, p_transition);

    message_create(p_client, LIGHT_LIGHTNESS_OPCODE_SET_UNACKNOWLEDGED,
                   (const uint8_t *) &msg, server_msg_length,
                   &p_client->access_message.message);

    uint32_t status = NRF_SUCCESS;
    repeats++;
    while (repeats-- > 0 && status == NRF_SUCCESS)
    {
        status = access_model_publish(p_client->model_handle, &p_client->access_message.message);
    }
    return status;
}

uint32_t light_lightness_client_linear_set(light_lightness_client_t * p_client,
                                           const light_lightness_linear_set_params_t * p_params,
                                           const model_transition_t * p_transition)
{
    if (p_client == NULL || p_params == NULL)
    {
        return NRF_ERROR_NULL;
    }

    if (is_p_transition_invalid(p_transition))
    {
        return NRF_ERROR_INVALID_PARAM;
    }

    if (access_reliable_model_is_free(p_client->model_handle))
    {
        uint8_t server_msg_length =
            message_linear_set_packet_create(&p_client->msg_pkt.linear_set,
                                             p_params, p_transition);

        message_create(p_client, LIGHT_LIGHTNESS_OPCODE_LINEAR_SET,
                       (const uint8_t *) &p_client->msg_pkt.linear_set,
                        server_msg_length, &p_client->access_message.message);
        reliable_context_create(p_client, LIGHT_LIGHTNESS_OPCODE_LINEAR_STATUS,
                                &p_client->access_message);

        return access_model_reliable_publish(&p_client->access_message);
    }
    else
    {
        return NRF_ERROR_BUSY;
    }
}

uint32_t light_lightness_client_linear_set_unack(light_lightness_client_t * p_client,
                                                 const light_lightness_linear_set_params_t * p_params,
                                                 const model_transition_t * p_transition,
                                                 uint8_t repeats)
{
    if (p_client == NULL || p_params == NULL)
    {
        return NRF_ERROR_NULL;
    }

    if (is_p_transition_invalid(p_transition))
    {
        return NRF_ERROR_INVALID_PARAM;
    }

    light_lightness_linear_set_msg_pkt_t msg;
    uint8_t server_msg_length = message_linear_set_packet_create(&msg, p_params, p_transition);

    message_create(p_client, LIGHT_LIGHTNESS_OPCODE_LINEAR_SET_UNACKNOWLEDGED,
                   (const uint8_t *) &msg,
                   server_msg_length, &p_client->access_message.message);

    uint32_t status = NRF_SUCCESS;
    repeats++;
    while (repeats-- > 0 && status == NRF_SUCCESS)
    {
        status = access_model_publish(p_client->model_handle, &p_client->access_message.message);
    }
    return status;
}

uint32_t light_lightness_client_default_set(light_lightness_client_t * p_client,
                                            const light_lightness_default_set_params_t * p_params)
{
    if (p_client == NULL || p_params == NULL)
    {
        return NRF_ERROR_NULL;
    }

    if (access_reliable_model_is_free(p_client->model_handle))
    {
        uint8_t server_msg_length =
            message_default_set_packet_create(&p_client->msg_pkt.default_set, p_params);

        message_create(p_client, LIGHT_LIGHTNESS_OPCODE_DEFAULT_SET,
                       (const uint8_t *) &p_client->msg_pkt.default_set,
                       server_msg_length, &p_client->access_message.message);
        reliable_context_create(p_client, LIGHT_LIGHTNESS_OPCODE_DEFAULT_STATUS,
                                &p_client->access_message);

        return access_model_reliable_publish(&p_client->access_message);
    }
    else
    {
        return NRF_ERROR_BUSY;
    }
}

uint32_t light_lightness_client_default_set_unack(light_lightness_client_t * p_client,
                                                  const light_lightness_default_set_params_t * p_params,
                                                  uint8_t repeats)
{
    if (p_client == NULL || p_params == NULL)
    {
        return NRF_ERROR_NULL;
    }

    light_lightness_default_set_msg_pkt_t msg;
    uint8_t server_msg_length = message_default_set_packet_create(&msg, p_params);

    message_create(p_client, LIGHT_LIGHTNESS_OPCODE_DEFAULT_SET_UNACKNOWLEDGED,
                   (const uint8_t *) &msg,
                   server_msg_length, &p_client->access_message.message);

    uint32_t status = NRF_SUCCESS;
    repeats++;
    while (repeats-- > 0 && status == NRF_SUCCESS)
    {
        status = access_model_publish(p_client->model_handle, &p_client->access_message.message);
    }
    return status;
}

uint32_t light_lightness_client_range_set(light_lightness_client_t * p_client,
                                          const light_lightness_range_set_params_t * p_params)
{
    if (p_client == NULL || p_params == NULL)
    {
        return NRF_ERROR_NULL;
    }

    if (p_params->range_min < LIGHT_LIGHTNESS_RANGE_MIN ||
        p_params->range_max < LIGHT_LIGHTNESS_RANGE_MIN)
    {
        return NRF_ERROR_INVALID_PARAM;
    }

    if (access_reliable_model_is_free(p_client->model_handle))
    {
        uint8_t server_msg_length = message_range_set_packet_create(&p_client->msg_pkt.range_set,
                                                                    p_params);

        message_create(p_client, LIGHT_LIGHTNESS_OPCODE_RANGE_SET,
                       (const uint8_t *) &p_client->msg_pkt.range_set,
                       server_msg_length, &p_client->access_message.message);
        reliable_context_create(p_client, LIGHT_LIGHTNESS_OPCODE_RANGE_STATUS,
                                &p_client->access_message);

        return access_model_reliable_publish(&p_client->access_message);
    }
    else
    {
        return NRF_ERROR_BUSY;
    }
}

uint32_t light_lightness_client_range_set_unack(light_lightness_client_t * p_client,
                                                const light_lightness_range_set_params_t * p_params,
                                                uint8_t repeats)
{
    if (p_client == NULL || p_params == NULL)
    {
        return NRF_ERROR_NULL;
    }

    if (p_params->range_min < LIGHT_LIGHTNESS_RANGE_MIN ||
        p_params->range_max < LIGHT_LIGHTNESS_RANGE_MIN)
    {
        return NRF_ERROR_INVALID_PARAM;
    }

    light_lightness_range_set_msg_pkt_t msg;
    uint8_t server_msg_length = message_range_set_packet_create(&msg, p_params);

    message_create(p_client, LIGHT_LIGHTNESS_OPCODE_RANGE_SET_UNACKNOWLEDGED,
                   (const uint8_t *) &msg,
                   server_msg_length, &p_client->access_message.message);

    uint32_t status = NRF_SUCCESS;
    repeats++;
    while (repeats-- > 0 && status == NRF_SUCCESS)
    {
        status = access_model_publish(p_client->model_handle, &p_client->access_message.message);
    }
    return status;
}

uint32_t light_lightness_client_get(light_lightness_client_t * p_client)
{
    if (p_client == NULL)
    {
        return NRF_ERROR_NULL;
    }

    if (access_reliable_model_is_free(p_client->model_handle))
    {
        message_create(p_client, LIGHT_LIGHTNESS_OPCODE_GET, NULL, 0,
                       &p_client->access_message.message);
        reliable_context_create(p_client, LIGHT_LIGHTNESS_OPCODE_STATUS,
                                &p_client->access_message);

        return access_model_reliable_publish(&p_client->access_message);
    }
    else
    {
        return NRF_ERROR_BUSY;
    }
}

uint32_t light_lightness_client_linear_get(light_lightness_client_t * p_client)
{
    if (p_client == NULL)
    {
        return NRF_ERROR_NULL;
    }

    if (access_reliable_model_is_free(p_client->model_handle))
    {
        message_create(p_client, LIGHT_LIGHTNESS_OPCODE_LINEAR_GET, NULL, 0,
                       &p_client->access_message.message);
        reliable_context_create(p_client, LIGHT_LIGHTNESS_OPCODE_LINEAR_STATUS,
                                &p_client->access_message);

        return access_model_reliable_publish(&p_client->access_message);
    }
    else
    {
        return NRF_ERROR_BUSY;
    }
}

uint32_t light_lightness_client_last_get(light_lightness_client_t * p_client)
{
    if (p_client == NULL)
    {
        return NRF_ERROR_NULL;
    }

    if (access_reliable_model_is_free(p_client->model_handle))
    {
        message_create(p_client, LIGHT_LIGHTNESS_OPCODE_LAST_GET, NULL, 0,
                       &p_client->access_message.message);
        reliable_context_create(p_client, LIGHT_LIGHTNESS_OPCODE_LAST_STATUS,
                                &p_client->access_message);

        return access_model_reliable_publish(&p_client->access_message);
    }
    else
    {
        return NRF_ERROR_BUSY;
    }
}

uint32_t light_lightness_client_default_get(light_lightness_client_t * p_client)
{
    if (p_client == NULL)
    {
        return NRF_ERROR_NULL;
    }

    if (access_reliable_model_is_free(p_client->model_handle))
    {
        message_create(p_client, LIGHT_LIGHTNESS_OPCODE_DEFAULT_GET, NULL, 0,
                       &p_client->access_message.message);
        reliable_context_create(p_client, LIGHT_LIGHTNESS_OPCODE_DEFAULT_STATUS,
                                &p_client->access_message);

        return access_model_reliable_publish(&p_client->access_message);
    }
    else
    {
        return NRF_ERROR_BUSY;
    }
}

uint32_t light_lightness_client_range_get(light_lightness_client_t * p_client)
{
    if (p_client == NULL)
    {
        return NRF_ERROR_NULL;
    }

    if (access_reliable_model_is_free(p_client->model_handle))
    {
        message_create(p_client, LIGHT_LIGHTNESS_OPCODE_RANGE_GET, NULL, 0,
                       &p_client->access_message.message);
        reliable_context_create(p_client, LIGHT_LIGHTNESS_OPCODE_RANGE_STATUS,
                                &p_client->access_message);

        return access_model_reliable_publish(&p_client->access_message);
    }
    else
    {
        return NRF_ERROR_BUSY;
    }
}
