/**
 * Copyright (c) 2025 Huawei Technologies Co., Ltd.
 * This program is free software, you can redistribute it and/or modify it under the terms and conditions of
 * CANN Open Software License Agreement Version 2.0 (the "License").
 * Please refer to the License for details. You may not use this file except in compliance with the License.
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
 * See LICENSE in the root of the software repository for the full text of the License.
 */

#include "padv3.h"
#include "opdev/op_log.h"
#include "opdev/shape_utils.h"
#include "opdev/op_def.h"
#include "opdev/op_dfx.h"
#include "opdev/aicpu/aicpu_task.h"
#include "op_api/aclnn_check.h"

using namespace op;

namespace l0op {
OP_TYPE_REGISTER(PadV3);
OP_TYPE_REGISTER(CircularPad);

static const std::initializer_list<op::DataType> CONSTANT_PAD_AICORE_DTYPE_SUPPORT_LIST = {
    op::DataType::DT_FLOAT16, op::DataType::DT_FLOAT, op::DataType::DT_INT32};

static const std::initializer_list<op::DataType> CONSTANT_PAD_ASCEND910B_AICORE_DTYPE_SUPPORT_LIST = {
    op::DataType::DT_FLOAT16, op::DataType::DT_FLOAT, op::DataType::DT_BF16, op::DataType::DT_INT8,
    op::DataType::DT_INT32};

static const std::initializer_list<op::DataType> REPLICATION_PAD_AICORE_DTYPE_SUPPORT_LIST = {
    op::DataType::DT_FLOAT16, op::DataType::DT_FLOAT};

static const std::initializer_list<op::DataType> REPLICATION_PAD_ASCEND910B_AICORE_DTYPE_SUPPORT_LIST = {
    op::DataType::DT_FLOAT16, op::DataType::DT_FLOAT, op::DataType::DT_BF16};
static const std::initializer_list<op::DataType> CIRCULAR_PAD_ASCEND910B_AICORE_DTYPE_SUPPORT_LIST = {
    op::DataType::DT_FLOAT16, op::DataType::DT_BF16, op::DataType::DT_FLOAT, op::DataType::DT_INT8,
    op::DataType::DT_INT32};

static const std::initializer_list<op::DataType> REFLECTION_PAD_AICORE_DTYPE_SUPPORT_LIST = {
    op::DataType::DT_FLOAT16, op::DataType::DT_FLOAT};

static const std::initializer_list<op::DataType> REFLECTION_PAD_ASCEND910B_AICORE_DTYPE_SUPPORT_LIST = {
    op::DataType::DT_FLOAT16, op::DataType::DT_FLOAT, op::DataType::DT_BF16};

static const std::initializer_list<op::DataType> CONSTANT_PAD_REGBASE_AICORE_DTYPE_SUPPORT_LIST = {
    op::DataType::DT_INT64,         op::DataType::DT_UINT64,     op::DataType::DT_DOUBLE,
    op::DataType::DT_INT32,         op::DataType::DT_UINT32,     op::DataType::DT_FLOAT,
    op::DataType::DT_INT16,         op::DataType::DT_UINT16,     op::DataType::DT_FLOAT16,
    op::DataType::DT_BF16,          op::DataType::DT_INT8,       op::DataType::DT_UINT8,
    op::DataType::DT_BOOL,          op::DataType::DT_HIFLOAT8,   op::DataType::DT_FLOAT8_E5M2,
    op::DataType::DT_FLOAT8_E4M3FN, op::DataType::DT_FLOAT8_E8M0, op::DataType::DT_FLOAT4_E2M1,
    op::DataType::DT_FLOAT4_E1M2};

static const std::initializer_list<op::DataType> REPLICATION_PAD_REGBASE_AICORE_DTYPE_SUPPORT_LIST = {
    op::DataType::DT_INT64,         op::DataType::DT_UINT64,     op::DataType::DT_DOUBLE,
    op::DataType::DT_INT32,         op::DataType::DT_UINT32,     op::DataType::DT_FLOAT,
    op::DataType::DT_INT16,         op::DataType::DT_UINT16,     op::DataType::DT_FLOAT16,
    op::DataType::DT_BF16,          op::DataType::DT_INT8,       op::DataType::DT_UINT8,
    op::DataType::DT_BOOL,          op::DataType::DT_HIFLOAT8,   op::DataType::DT_FLOAT8_E5M2,
    op::DataType::DT_FLOAT8_E4M3FN, op::DataType::DT_FLOAT8_E8M0};

static const std::initializer_list<op::DataType> REFLECTION_PAD_REGBASE_AICORE_DTYPE_SUPPORT_LIST = {
    op::DataType::DT_INT64,         op::DataType::DT_UINT64,     op::DataType::DT_DOUBLE,
    op::DataType::DT_INT32,         op::DataType::DT_UINT32,     op::DataType::DT_FLOAT,
    op::DataType::DT_INT16,         op::DataType::DT_UINT16,     op::DataType::DT_FLOAT16,
    op::DataType::DT_BF16,          op::DataType::DT_INT8,       op::DataType::DT_UINT8,
    op::DataType::DT_BOOL,          op::DataType::DT_HIFLOAT8,   op::DataType::DT_FLOAT8_E5M2,
    op::DataType::DT_FLOAT8_E4M3FN, op::DataType::DT_FLOAT8_E8M0};

static const string CONSTANT_MODE = "constant";
static const string REFLECTION_MODE = "reflect";
static const string REPLICATION_MODE = "edge";
static const string CIRCULAR_MODE = "circular";
static const std::unordered_set<std::string> VALID_MODES = {CONSTANT_MODE, REFLECTION_MODE, REPLICATION_MODE};
static const size_t AI_CORE_CONSTANT_PAD_DIM_BOUND = 8;
static const size_t AI_CORE_REPLICATION_PAD_DIM_BOUND = 5;
static const size_t AI_CORE_REFLECTION_PAD_DIM_BOUND = 5;

inline static bool IsAiCoreSupport(const aclTensor* self, const std::string& mode)
{
    if (VALID_MODES.find(mode) == VALID_MODES.end()) {
        return false;
    }
    if (mode == CONSTANT_MODE) {
        if (self->GetViewShape().GetDimNum() > AI_CORE_CONSTANT_PAD_DIM_BOUND) {
            return false;
        }
        if (GetCurrentPlatformInfo().GetSocVersion() == SocVersion::ASCEND910B ||
            GetCurrentPlatformInfo().GetSocVersion() == SocVersion::ASCEND910_93) {
            return CheckType(self->GetDataType(), CONSTANT_PAD_ASCEND910B_AICORE_DTYPE_SUPPORT_LIST);
        } else if (IsRegBase()) {
            return CheckType(self->GetDataType(), CONSTANT_PAD_REGBASE_AICORE_DTYPE_SUPPORT_LIST);
        }
        return CheckType(self->GetDataType(), CONSTANT_PAD_AICORE_DTYPE_SUPPORT_LIST);
    } else if (mode == REPLICATION_MODE) {
        if (self->GetViewShape().GetDimNum() > AI_CORE_REPLICATION_PAD_DIM_BOUND) {
            return false;
        }
        if (GetCurrentPlatformInfo().GetSocVersion() == SocVersion::ASCEND910B ||
            GetCurrentPlatformInfo().GetSocVersion() == SocVersion::ASCEND910_93) {
            return CheckType(self->GetDataType(), REPLICATION_PAD_ASCEND910B_AICORE_DTYPE_SUPPORT_LIST);
        } else if (IsRegBase()) {
            return CheckType(self->GetDataType(), REPLICATION_PAD_REGBASE_AICORE_DTYPE_SUPPORT_LIST);
        }
        return CheckType(self->GetDataType(), REPLICATION_PAD_AICORE_DTYPE_SUPPORT_LIST);
    } else if (mode == REFLECTION_MODE) {
        if (self->GetViewShape().GetDimNum() > AI_CORE_REFLECTION_PAD_DIM_BOUND) {
            return false;
        }
        if (GetCurrentPlatformInfo().GetSocVersion() == SocVersion::ASCEND910B ||
            GetCurrentPlatformInfo().GetSocVersion() == SocVersion::ASCEND910_93) {
            return CheckType(self->GetDataType(), REFLECTION_PAD_ASCEND910B_AICORE_DTYPE_SUPPORT_LIST);
        } else if (IsRegBase()) {
            return CheckType(self->GetDataType(), REFLECTION_PAD_REGBASE_AICORE_DTYPE_SUPPORT_LIST);
        }
        return CheckType(self->GetDataType(), REFLECTION_PAD_AICORE_DTYPE_SUPPORT_LIST);
    }
    return false;
}

inline const aclTensor* CircularPadAiCore(
    const aclTensor* self, const aclTensor* paddings, aclTensor* out, aclOpExecutor* executor)
{
    L0_DFX(CircularPadAiCore, self, paddings, out);
    auto ret = ADD_TO_LAUNCHER_LIST_AICORE(CircularPad, OP_INPUT(self, paddings), OP_OUTPUT(out));
    OP_CHECK(
        ret == ACLNN_SUCCESS, OP_LOGE(ACLNN_ERR_INNER_NULLPTR, "CircularPadAiCore ADD_TO_LAUNCHER_LIST_AICORE failed."),
        return nullptr);
    return out;
}

inline const aclTensor* PadV3AiCore(
    const aclTensor* self, const aclTensor* paddings, const aclTensor* constant_values, const std::string& mode,
    const bool paddingsContiguous, aclTensor* out, aclOpExecutor* executor)
{
    L0_DFX(PadV3AiCore, self, paddings, constant_values, mode, paddingsContiguous, out);
    auto ret = ADD_TO_LAUNCHER_LIST_AICORE(
        PadV3, OP_INPUT(self, paddings, constant_values), OP_OUTPUT(out), OP_ATTR(mode, paddingsContiguous));
    OP_CHECK(
        ret == ACLNN_SUCCESS, OP_LOGE(ACLNN_ERR_INNER_NULLPTR, "PadV3AiCore ADD_TO_LAUNCHER_LIST_AICORE failed."),
        return nullptr);
    return out;
}

inline const aclTensor* PadV3AiCpu(
    const aclTensor* self, const aclTensor* paddings, const aclTensor* constant_values, const std::string& mode,
    const bool paddingsContiguous, aclTensor* out, aclOpExecutor* executor)
{
    L0_DFX(PadV3AiCpu, self, paddings, constant_values, mode, paddingsContiguous, out);
    static internal::AicpuTaskSpace space("PadV3");
    auto ret = ADD_TO_LAUNCHER_LIST_AICPU(
        PadV3, OP_ATTR_NAMES({"mode", "paddingsContiguous"}), OP_INPUT(self, paddings, constant_values), OP_OUTPUT(out),
        OP_ATTR(mode, paddingsContiguous));
    CHECK_RET(ret == ACLNN_SUCCESS, nullptr);
    return out;
}

const aclTensor* PadV3(
    const aclTensor* self, const aclTensor* paddings, const aclTensor* constant_values, const std::string& mode,
    const bool paddingsContiguous, aclOpExecutor* executor)
{
    auto out = executor->AllocTensor(self->GetDataType(), self->GetViewFormat(), self->GetViewFormat());
    auto ret = INFER_SHAPE(PadV3, OP_INPUT(self, paddings), OP_OUTPUT(out), OP_ATTR(mode, paddingsContiguous));
    if (ret != ACLNN_SUCCESS) {
        OP_LOGE(ACLNN_ERR_PARAM_INVALID, "PadV3 InferShape failed.");
        return nullptr;
    }
    if (mode == CIRCULAR_MODE) {
        return CircularPadAiCore(self, paddings, out, executor);
    }

    if (IsAiCoreSupport(self, mode)) {
        return PadV3AiCore(self, paddings, constant_values, mode, paddingsContiguous, out, executor);
    } else {
        return PadV3AiCpu(self, paddings, constant_values, mode, paddingsContiguous, out, executor);
    }
}
} // namespace l0op