/*
 * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <cstdint>
#include <memory>
#include <string>

#include "napi/native_api.h"
#include "napi/native_common.h"
#include "napi/native_node_api.h"

namespace OHOS {
namespace PreferencesJsKit {
static napi_value JSTestSyncFunc(napi_env env, napi_callback_info info)
{
    size_t argc = 2;
    napi_value args[2] = { nullptr };
    napi_get_cb_info(env, info, &argc, args, nullptr, nullptr);

    napi_valuetype valueType0;
    napi_typeof(env, args[0], &valueType0);

    napi_valuetype valueType1;
    napi_typeof(env, args[1], &valueType1);

    NAPI_ASSERT(env, valueType0 == napi_number && valueType1 == napi_number, "Wrong argument type. Numbers expected");

    double value0;
    double value1;
    napi_get_value_double(env, args[0], &value0);
    napi_get_value_double(env, args[1], &value1);

    napi_value sum;
    napi_create_double(env, value0 + value1, &sum);
    return sum;
}

static napi_value JSTestSyncFuncOnly(napi_env env, napi_callback_info info)
{
    napi_value ret = nullptr;
    napi_create_double(env, 3, &ret);
    return ret;
}

struct AsyncCallbackInfo {
    napi_env env = nullptr;
    napi_async_work work = nullptr;
    napi_deferred deferred = nullptr;
    napi_ref callbackRef = nullptr;
    double value0;
    double value1;
    double sum;
};

static napi_value JSTestAsyncFunc(napi_env env, napi_callback_info info)
{
    size_t argc = 3;
    napi_value args[3] = { 0 };
    napi_value thisArg = nullptr;
    void *data = nullptr;
    napi_get_cb_info(env, info, &argc, args, &thisArg, &data);

    auto asyncContext = new AsyncCallbackInfo();
    asyncContext->env = env;

    napi_valuetype valueType0;
    napi_typeof(env, args[0], &valueType0);

    napi_valuetype valueType1;
    napi_typeof(env, args[1], &valueType1);

    NAPI_ASSERT(env, valueType0 == napi_number && valueType1 == napi_number, "Wrong argument type. Numbers expected");
    napi_get_value_double(env, args[0], &asyncContext->value0);
    napi_get_value_double(env, args[1], &asyncContext->value1);

    napi_value resourceName = nullptr;
    napi_create_string_utf8(env, "JSTestAsyncFunc", NAPI_AUTO_LENGTH, &resourceName);

    napi_value result = nullptr;
    if (argc == 3) {
        napi_valuetype valueType2;
        napi_typeof(env, args[2], &valueType2);
        NAPI_ASSERT(env, valueType2 == napi_function, "Wrong argument type. Numbers expected");
        napi_create_reference(env, args[2], 1, &asyncContext->callbackRef);
    } else {
        napi_create_promise(env, &asyncContext->deferred, &result);
    }
    napi_create_async_work(
        env, nullptr, resourceName,
        [](napi_env env, void *data) {
            AsyncCallbackInfo *asyncContext = (AsyncCallbackInfo *)data;
            double value0 = asyncContext->value0;
            double value1 = asyncContext->value1;
            asyncContext->sum = value0 + value1;
        },
        [](napi_env env, napi_status status, void *data) {
            AsyncCallbackInfo *asyncContext = (AsyncCallbackInfo *)data;
            napi_value argv = nullptr;
            napi_create_double(env, asyncContext->sum, &argv);
            if (asyncContext->callbackRef) {
                napi_value callback = nullptr;
                napi_value callbackResult = nullptr;
                napi_get_reference_value(env, asyncContext->callbackRef, &callback);
                napi_call_function(env, nullptr, callback, 1, &argv, &callbackResult);
                napi_delete_reference(env, asyncContext->callbackRef);
            } else if (asyncContext->deferred) {
                napi_resolve_deferred(env, asyncContext->deferred, argv);
            }
            napi_delete_async_work(env, asyncContext->work);
            delete asyncContext;
        },
        (void *)asyncContext, &asyncContext->work);
    napi_queue_async_work(env, asyncContext->work);
    return result;
}

static napi_value JSTestAsyncFuncOnly(napi_env env, napi_callback_info info)
{
    size_t argc = 1;
    napi_value args[1] = { 0 };
    napi_value thisArg = nullptr;
    void *data = nullptr;
    napi_get_cb_info(env, info, &argc, args, &thisArg, &data);

    auto asyncContext = new AsyncCallbackInfo();
    asyncContext->env = env;

    napi_value resourceName = nullptr;
    napi_create_string_utf8(env, "JSTestAsyncFunc", NAPI_AUTO_LENGTH, &resourceName);

    napi_value result = nullptr;
    if (argc == 1) {
        napi_valuetype valueType2;
        napi_typeof(env, args[0], &valueType2);
        NAPI_ASSERT(env, valueType2 == napi_function, "Wrong argument type. Numbers expected");
        napi_create_reference(env, args[0], 1, &asyncContext->callbackRef);
    } else {
        napi_create_promise(env, &asyncContext->deferred, &result);
    }
    napi_create_async_work(
        env, nullptr, resourceName,
        [](napi_env env, void *data) {
            AsyncCallbackInfo *asyncContext = (AsyncCallbackInfo *)data;
            asyncContext->sum = 3;
        },
        [](napi_env env, napi_status status, void *data) {
            AsyncCallbackInfo *asyncContext = (AsyncCallbackInfo *)data;
            napi_value argv = nullptr;
            napi_create_double(env, asyncContext->sum, &argv);
            if (asyncContext->callbackRef) {
                napi_value callback = nullptr;
                napi_value callbackResult = nullptr;
                napi_get_reference_value(env, asyncContext->callbackRef, &callback);
                napi_call_function(env, nullptr, callback, 1, &argv, &callbackResult);
                napi_delete_reference(env, asyncContext->callbackRef);
            } else if (asyncContext->deferred) {
                napi_resolve_deferred(env, asyncContext->deferred, argv);
            }
            napi_delete_async_work(env, asyncContext->work);
            delete asyncContext;
            asyncContext = nullptr;
        },
        (void *)asyncContext, &asyncContext->work);
    napi_queue_async_work(env, asyncContext->work);
    return result;
}

EXTERN_C_START
static napi_value Init(napi_env env, napi_value exports)
{
    napi_property_descriptor properties[] = {
        DECLARE_NAPI_FUNCTION("testSyncFunc", JSTestSyncFunc),
        DECLARE_NAPI_FUNCTION("testAsyncFunc", JSTestAsyncFunc),

        DECLARE_NAPI_FUNCTION("testSyncFuncOnly", JSTestSyncFuncOnly),
        DECLARE_NAPI_FUNCTION("testAsyncFuncOnly", JSTestAsyncFuncOnly),
    };
    NAPI_CALL(env, napi_define_properties(env, exports, sizeof(properties) / sizeof(*properties), properties));
    return exports;
}
EXTERN_C_END

static napi_module performanceTestModule = {
    .nm_version = 1,
    .nm_flags = 0,
    .nm_filename = nullptr,
    .nm_register_func = Init,
    .nm_modname = "performanceTest",
    .nm_priv = ((void *)0),
    .reserved = { 0 },
};

static __attribute__((constructor)) void RegisterModule(void)
{
    napi_module_register(&performanceTestModule);
}
} // namespace PreferencesJsKit
} // namespace OHOS