#include "napi/native_api.h"
#include <string>

//接口業(yè)務(wù)實(shí)現(xiàn)C/C++代碼
//std::string 需要引入string頭文件，#include <string>
static napi_value getHelloString(napi_env env, napi_callback_info info) {
  napi_value result;
  std::string words = "Hello OpenHarmony NAPI";
  //NAPI_CALL(env, napi_create_string_utf8(env, words.c_str(), words.length(), &result));
  napi_create_string_utf8(env, words.c_str(), words.length(), &result);
  
  return result;
}

// napi_addon_register_func
//2.指定模塊注冊(cè)對(duì)外接口的處理函數(shù)，具體擴(kuò)展的接口在該函數(shù)中聲明

static napi_value registerFunc(napi_env env, napi_value exports)
{
    static napi_property_descriptor desc[] = {
        // 聲明該napi_module對(duì)外具體的提供的API
        { "getHelloString", nullptr, getHelloString, nullptr, nullptr, nullptr, napi_default, nullptr }
    };
    //NAPI_CALL(env, napi_define_properties(env, exports, sizeof(desc) / sizeof(desc[0]), desc));
    napi_define_properties(env, exports, sizeof(desc) / sizeof(desc[0]), desc);
    return exports;
}

// 1.先定義napi_module，指定當(dāng)前NAPI模塊對(duì)應(yīng)的模塊名
//以及模塊注冊(cè)對(duì)外接口的處理函數(shù)，具體擴(kuò)展的接口在該函數(shù)中聲明
// nm_modname: 模塊名稱，對(duì)應(yīng)eTS代碼為import nm_modname from '@ohos.ohos_shared_library_name'
//示例對(duì)應(yīng)eTS代碼為：import hellonapi from '@ohos.hellonapi'
static napi_module hellonapiModule = {
    .nm_version = 1,
    .nm_flags = 0,
    .nm_filename = nullptr,
    .nm_register_func = registerFunc, // 模塊對(duì)外接口注冊(cè)函數(shù)
    .nm_modname = "hellonapi",  // 自定義模塊名
    .nm_priv = ((void*)0),
    .reserved = { 0 },
};

//3.模塊定義好后，調(diào)用NAPI提供的模塊注冊(cè)函數(shù)napi_module_register(napi_module* mod)函數(shù)注冊(cè)到系統(tǒng)中。
// register module，設(shè)備啟動(dòng)時(shí)自動(dòng)調(diào)用此constructor函數(shù)，把模塊定義的模塊注冊(cè)到系統(tǒng)中
extern "C" __attribute__((constructor)) void hellonapiModuleRegister()
{
    napi_module_register(&hellonapiModule);
}

cmake_minimum_required(VERSION 3.4.1)
project(MyApplication3)
set(NATIVERENDER_ROOT_PATH ${CMAKE_CURRENT_SOURCE_DIR})
include_directories(${NATIVERENDER_ROOT_PATH}
                    ${NATIVERENDER_ROOT_PATH}/include)

add_library(hellonapi SHARED hellonapi.cpp)
target_link_libraries(hellonapi PUBLIC libace_napi.z.so)

export const getHelloString: () => string;

import prompt from '@system.prompt'
import hellonapi from 'libhellonapi.so'

@Entry
@Component
export struct HelloNAPI {
  build() {
    Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Center, justifyContent: FlexAlign.Center }) {
      Button("NAPI: hellonapi.getHelloString()").margin(10).fontSize(24).onClick(() => {
        // 調(diào)用getHelloString接口
        let strFromNAPI = hellonapi.getHelloString()
        prompt.showToast({ message: strFromNAPI })
      })
    }
    .width('100%')
    .height('100%')
  }
}

{
  "name": "libhellonapi.so",
  "types": "./index.d.ts"
}

"@types/libhellonapi.so":"file:./src/main/cpp/types/libhellonapi"

"@types/libhellonapi.so": {
      "version": "file:src/main/cpp/types/libhellonapi",

entry\build\default\intermediates\libs\default\arm64-v8a
entry\build\default\intermediates\cmake\default\obj\arm64-v8a
entry\build\default\intermediates\libs\default\armeabi-v7a
entry\build\default\intermediates\cmake\default\obj\armeabi-v7a

/**
* 模塊描述
* @since API版本號(hào)，IT Release3 對(duì)應(yīng) 4，以此類推
* @sysCap 系統(tǒng)能力
* @devices 支持設(shè)備
* @import 導(dǎo)入模塊
* @permission 權(quán)限列表
*/
declare namespace 模塊名 {
// 在此處定義功能方法
}
export default 模塊名;