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/**
 @file     SiSizes.cpp
 @brief    Sizes estimation and calculation
 @details  Copyright (c) 2019 Acronis International GmbH
 @author   Denis Kopyrin (Denis.Kopyrin@acronis.com)
 @since    $Id: $
 */

#pragma once

#include "compat.h"
#include "si_fp_properties.h"

static inline int roundUp(int numToRound, int multiple)
{
  return (numToRound + multiple - 1) & -multiple;
}

static const uint8_t k_fp_si_property_to_type[] =
{
#define SI_FP_PROP(prop, propPub, vt, type, name) vt,
#define SI_FP_PROP_SIZED(...) SI_FP_PROP(__VA_ARGS__)
#define SI_FP_PROP_HANDLE(...)  SI_FP_PROP(__VA_ARGS__)
#include "si_fp_properties_x.h"
#undef SI_FP_PROP_HANDLE
#undef SI_FP_PROP_SIZED
#undef SI_FP_PROP
};

static inline fp_si_property_value_type_t fp_si_property_id_to_fp_value_type(fp_si_property_id_t id) {
#ifdef KERNEL_MOCK
  _Static_assert(sizeof(k_fp_si_property_to_type) / sizeof(*k_fp_si_property_to_type) == FP_SI_PI_MAX_PROPERTY_ID, "k_fp_si_property_to_type size mismatch");
#endif
  return (fp_si_property_value_type_t) k_fp_si_property_to_type[id];
}

// From fp_si_property_id_t to SiPropertyId
static const uint16_t k_fp_si_property_type_to_public_type[] = {
#define SI_FP_PROP(prop, propPub, vt, type, name) propPub,
#define SI_FP_PROP_SIZED(...) SI_FP_PROP(__VA_ARGS__)
#define SI_FP_PROP_HANDLE(...)  SI_FP_PROP(__VA_ARGS__)
#include "si_fp_properties_x.h"
#undef SI_FP_PROP_HANDLE
#undef SI_FP_PROP_SIZED
#undef SI_FP_PROP
};

static inline SiPropertyId fp_si_property_id_to_public_type(fp_si_property_id_t id) {
#ifdef KERNEL_MOCK
  _Static_assert(sizeof(k_fp_si_property_type_to_public_type) / sizeof(*k_fp_si_property_type_to_public_type) == FP_SI_PI_MAX_PROPERTY_ID, "k_fp_si_property_type_to_public_type size mismatch");
#endif
  return (SiPropertyId) k_fp_si_property_type_to_public_type[id];
}

// Means that by default varsized fields do not add anything
// It is expected that user will provide the proper size
#define SI_LEN_VARSIZE 0

// From fp_si_property_value_type_t to size
static const uint32_t k_fp_si_value_type_to_size[] = {
#define SI_FP_VALUE(type, typePub, sz) sz,
#include "si_fp_value_types_x.h"
#undef SI_FP_VALUE
};

static inline uint32_t fp_si_property_value_type_to_size(fp_si_property_value_type_t type) {
#ifdef KERNEL_MOCK
  _Static_assert(sizeof(k_fp_si_value_type_to_size) / sizeof(*k_fp_si_value_type_to_size) == FP_SI_VT_MAX_PROPERTY_VALUE_TYPE, "k_fp_si_value_type_to_size size mismatch");
#endif
  return k_fp_si_value_type_to_size[type];
}

// From fp_si_property_value_type_t to SiPropertyValueType
static const uint8_t k_fp_si_value_type_to_public_type[] = {
#define SI_FP_VALUE(type, typePub, sz) typePub,
#include "si_fp_value_types_x.h"
#undef SI_FP_VALUE
};

static inline SiPropertyValueType fp_si_property_value_type_to_public_type(fp_si_property_value_type_t type) {
#ifdef KERNEL_MOCK
  _Static_assert(sizeof(k_fp_si_value_type_to_public_type) / sizeof(*k_fp_si_value_type_to_public_type) == FP_SI_VT_MAX_PROPERTY_VALUE_TYPE, "k_fp_si_value_type_to_public_type size mismatch");
#endif
  return (SiPropertyValueType) k_fp_si_value_type_to_public_type[type];
}

static inline bool si_property_value_type_wants_vector_wrap(SiPropertyValueType type)
{
  return type == SI_VT_BYTE_ARRAY_TYPE || type == SI_VT_UTF8_STRING_TYPE;
}

static inline uint32_t si_estimate_property_size(fp_si_property_id_t prop_id) {
  fp_si_property_value_type_t value_type = fp_si_property_id_to_fp_value_type(prop_id);
  SiPropertyValueType value_type_pub = fp_si_property_value_type_to_public_type(value_type);
  size_t size = fp_si_property_value_type_to_size(value_type);

  // Any varsized data is stored inside SiVector, reserve space for that
  if (si_property_value_type_wants_vector_wrap(value_type_pub))
    size += sizeof(SiVector);

  return size + sizeof(SiProperty);
}

// I am not sure compiler is going to be able to inline this but I can only hope it can
static inline uint32_t si_estimate_size(const uint8_t* params, size_t paramsNumber)
{
  uint32_t est = 0;
  size_t i;
  for (i = 0; i < paramsNumber; i++)
  {
    est += si_estimate_property_size(params[i]);
  }

  return roundUp(est, 8);
}

#define SI_FN_TMPL_CALCULATE_SIZE(prop) __est += si_estimate_property_size(prop);
#define SI_ESTIMATE_TMPL_SIZE(params) ({ uint32_t __est = 0; params(SI_FN_TMPL_CALCULATE_SIZE); __est = roundUp(__est, 8); __est; })