#include <string.h>

#include "google/protobuf/descriptor.h"
#include "google/protobuf/util/json_util.h"
#include "google/protobuf/util/type_resolver.h"
#include "google/protobuf/util/type_resolver_util.h"

#include "google/protobuf/message.h"
#include "google/protobuf/descriptor.h"
#include "google/protobuf/descriptor.pb.h"
#include "google/protobuf/dynamic_message.h"
#include "google/protobuf/compiler/importer.h"

#include "3rdparty/yyjson/yyjson.h"
#include "3rdparty/bus_client/cbhomeclient.h"
#include "3rdparty/bus_client/message.h"
#include "proto/x86_64/sysset.pb.h"
#include <vector>

using namespace protomsg;
using namespace std;
using google::protobuf::util::JsonStringToMessage;

const char *CONTENT_TYPE_JSON = "application/json";

bool json_to_proto(const std::string &json, google::protobuf::Message& message) {
    google::protobuf::util::JsonParseOptions options;
    options.ignore_unknown_fields = true;
    return JsonStringToMessage(json, &message,options).ok();
}

bool proto_to_json(const google::protobuf::Message& message, std::string& json) {
    google::protobuf::util::JsonPrintOptions options;
    options.add_whitespace = true;
    options.always_print_primitive_fields = true;
    options.preserve_proto_field_names = true;
    return MessageToJsonString(message, &json, options).ok();
}

char *make_get_request(const char *topic) {
    auto doc = yyjson_mut_doc_new(NULL);
    auto root = yyjson_mut_obj(doc);
    yyjson_mut_obj_add_strn(doc, root, "path", topic, strlen(topic));
    yyjson_mut_obj_add_strn(doc, root, "method", "GET", 3);
    yyjson_mut_obj_add_strn(doc, root, "contentType", CONTENT_TYPE_JSON, strlen(CONTENT_TYPE_JSON));

    size_t jsonl = 0;
    char *json = yyjson_mut_val_write(root, 0, &jsonl);

    yyjson_mut_doc_free(doc);

    return json;
}

extern "C" int bus_dbapi_get_json_data(const char * json, char ** pptr_data, yyjson_type *ptr_type)
{
    /*{
	"success": true,
	"msg": "",
        "data": {
            "alarm_ip": "192.168.20.189",
            "alarm_port": 9200,
        }
    }*/

	/*{
    "code": 200,
    "data": [
        {
            "id": "295F36D6-7489-30AC-3263-335B4660AA79",
            "name": "全天",
            "time_rule": "[{\"day\":1,\"time_range\":[{\"start\":\"05:31\",\"end\":\"21:07\"}]},{\"day\":2,\"time_range\":[{\"start\":\"01:42\",\"end\":\"23:59\"}]},{\"day\":3,\"time_range\":[{\"start\":\"00:00\",\"end\":\"23:59\"}]},{\"day\":4,\"time_range\":[{\"start\":\"00:00\",\"end\":\"23:59\"}]},{\"day\":5,\"time_range\":[{\"start\":\"00:00\",\"end\":\"23:59\"}]},{\"day\":6,\"time_range\":[{\"start\":\"00:00\",\"end\":\"23:59\"}]},{\"day\":7,\"time_range\":[{\"start\":\"00:00\",\"end\":\"23:59\"}]}]"
        },
        {
            "id": "21FA488C-2858-F366-4587-CE0661BFAD60",
            "name": "SAAS",
            "time_rule": "[{\"day\":1,\"time_range\":[{\"start\":\"00:00\",\"end\":\"17:04\"}]},{\"day\":2,\"time_range\":[{\"start\":\"00:00\",\"end\":\"17:25\"}]},{\"day\":3,\"time_range\":[{\"start\":\"00:00\",\"end\":\"17:22\"}]},{\"day\":4,\"time_range\":[{\"start\":\"00:00\",\"end\":\"15:33\"}]},{\"day\":5,\"time_range\":[{\"start\":\"00:00\",\"end\":\"17:40\"}]},{\"day\":6,\"time_range\":[{\"start\":\"00:00\",\"end\":\"18:04\"}]},{\"day\":7,\"time_range\":[{\"start\":\"00:00\",\"end\":\"13:51\"}]}]"
        },
        {
            "id": "37B82C8F-3BDB-A247-3683-F045190D2991",
            "name": "116",
            "time_rule": "[{\"day\":1,\"time_range\":[{\"start\":\"03:28\",\"end\":\"23:59\"}]},{\"day\":2,\"time_range\":[{\"start\":\"04:04\",\"end\":\"23:59\"}]},{\"day\":3,\"time_range\":[{\"start\":\"04:40\",\"end\":\"23:59\"}]},{\"day\":4,\"time_range\":[{\"start\":\"04:46\",\"end\":\"23:59\"}]},{\"day\":5,\"time_range\":[{\"start\":\"04:58\",\"end\":\"23:59\"}]},{\"day\":6,\"time_range\":[{\"start\":\"06:16\",\"end\":\"23:59\"}]},{\"day\":7,\"time_range\":[{\"start\":\"05:52\",\"end\":\"23:59\"}]}]"
        }
    ],
    "msg": "",
    "success": true
}*/
    int ret = -1;
    size_t data_len = 0;
    const char * ptr_value = NULL;    
    const char * success_name = "success";
    const char * msg_name = "msg";         

    if(NULL == *pptr_data)
    {
        return -1;
    }
    

    // Read JSON and get root
    yyjson_doc *doc = yyjson_read(json, strlen(json), 0);
    yyjson_val *root = yyjson_doc_get_root(doc);

    // Get root["success"]
    yyjson_val *success = yyjson_obj_get(root, success_name);

    int  success_val = yyjson_get_bool(success);
    printf("success: %d\n", success_val);
    if(!success_val)
    {
        yyjson_doc_free(doc);
        return -1;
    }

    // Get root["msg"]
    //yyjson_val *msg = yyjson_obj_get(root, "msg");
    yyjson_val *msg = yyjson_obj_get(root, "msg");    
    printf("msg: %s\n", yyjson_get_str(msg));    

    // Get root["data"]
    //yyjson_val *msg = yyjson_obj_get(root, "data");
    yyjson_val *data = yyjson_obj_get(root, "data"); 

    *ptr_type = yyjson_get_type(data);
    ptr_value = yyjson_val_write(data, YYJSON_WRITE_NOFLAG, &data_len);	
    printf("data: %s\n", ptr_value);    
    printf("len: %lu\n", data_len);  

    memcpy(*pptr_data, ptr_value, data_len);
    ret = 0;

    // Free the doc
    yyjson_doc_free(doc);
    
    // All functions accept NULL input, and return NULL on error.
    return ret;
}

bool bus_dbapi_get_topic_data(void *handle, const char* topic, crepmsg **pptr_repmsg, size_t len)
{
	const auto topicl = strlen(topic);
	auto reqData = make_get_request(topic);
	auto reqmsg = make_req_msg(topic, topicl, reqData, strlen(reqData));
	
	if (bus_client_request(handle, reqmsg, pptr_repmsg)) {
		printf("======>> bus_client_reqest [%s] get [%s]\n", topic, (*pptr_repmsg)->data);
	} else {
		return false;
	}

	len = strlen((*pptr_repmsg)->data) + 1;
	
    free(reqData);	
}
	

bool bus_dbapi_get(void *handle, const char* topic, google::protobuf::Message& message) {
	yyjson_type type = YYJSON_TYPE_OBJ;
	crepmsg *repmsg = NULL;
    size_t len = 0;
	
	bus_dbapi_get_topic_data(handle, topic, &repmsg, len);

    int msglen = strlen(repmsg->data);
    char* msgdata = (char *)malloc(msglen);
    memset(msgdata, 0 , msglen);

    if(0 == bus_dbapi_get_json_data((const char *)repmsg->data, &msgdata, &type))
    {
        printf("======>> protomsg: %s\n", msgdata);            
    }

	std::string jsonString = msgdata;
	if (json_to_proto(jsonString, message)) 
	{
		printf("======>> json_to_proto done\n");
	} 
	else
	{
		printf("======>> json_to_proto fail\n");
		return false;
	}  

    free(msgdata);
	free_reply_msg(repmsg);

    return true;
}