#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <unistd.h> 
#include <stdio.h> 
#include <stdlib.h>
#include <assert.h>
#include <errno.h>
#include <sys/prctl.h>
#include <string.h>
#include <pthread.h>

#include "object_store_client.h"
#include "tango_cache_tools.h"

enum CACHE_ERR_CODE object_store_get_last_error(const struct cache_evbase_ctx *ctx)
{
	return cache_evbase_get_last_error(ctx);
}

void object_store_get_statistics(const struct object_store_instance *instance, struct cache_statistics *out)
{
	struct cache_statistics out_cache;

	memset(out, 0, sizeof(struct cache_statistics));
	for(u_int32_t i=0; i<instance->instance_num; i++)
	{
		cache_evbase_get_statistics(instance->instances[i], &out_cache);
		
		out->del_error_num += out_cache.del_error_num;
		out->del_recv_num  += out_cache.del_recv_num;
		out->del_succ_num  += out_cache.del_succ_num;
		out->get_err_http  += out_cache.get_err_http;
		out->get_err_redis += out_cache.get_err_redis;
		out->get_miss_num  += out_cache.get_miss_num;
		out->get_recv_num  += out_cache.get_recv_num;
		out->get_succ_http += out_cache.get_succ_http;
		out->get_succ_redis+= out_cache.get_succ_redis;
		out->put_err_http  += out_cache.put_err_http;
		out->put_err_redis += out_cache.put_err_redis;
		out->put_recv_num  += out_cache.put_recv_num;
		out->put_succ_http += out_cache.put_succ_http;
		out->put_succ_redis+= out_cache.put_succ_redis;
		out->session_http  += out_cache.session_http;
		out->session_redis += out_cache.session_redis;
		out->memory_used   += out_cache.memory_used;
		out->totaldrop_num += out_cache.totaldrop_num;
	}
}

struct tango_cache_result *object_store_read_result(void *promise_result)
{
	return cache_evbase_read_result(promise_result);
}

int object_store_update_end(struct cache_evbase_ctx *ctx, char *path/*OUT*/, size_t pathsize)
{
	return cache_evbase_update_end(ctx, path, pathsize);
}

void object_store_update_cancel(struct cache_evbase_ctx *ctx)
{
	cache_evbase_update_cancel(ctx);
}

int object_store_update_frag_data(struct cache_evbase_ctx *ctx, enum PUT_MEMORY_COPY_WAY way, const char *data, size_t size)
{
	return cache_evbase_update_frag_data(ctx, way, data, size);
}

int object_store_update_frag_evbuf(struct cache_evbase_ctx *ctx, struct evbuffer *evbuf)
{
	return cache_evbase_update_frag_evbuf(ctx, evbuf);
}

struct cache_evbase_ctx *object_store_update_start(struct object_store_instance *instance, struct future* f, struct tango_cache_meta_put *meta)
{
	return cache_evbase_update_start(instance->instances[rand()%instance->instance_num], f, meta);
}

int object_store_upload_once_data(struct object_store_instance *instance, struct future* f, 
		enum PUT_MEMORY_COPY_WAY way, const char *data, size_t size, struct tango_cache_meta_put *meta, char *path, size_t pathsize)
{
	return cache_evbase_upload_once_data(instance->instances[rand()%instance->instance_num], f, way, data, size, meta, path, pathsize);
}

int object_store_upload_once_evbuf(struct object_store_instance *instance, struct future* f, 
		struct evbuffer *evbuf, struct tango_cache_meta_put *meta, char *path, size_t pathsize)
{
	return cache_evbase_upload_once_evbuf(instance->instances[rand()%instance->instance_num], f, evbuf, meta, path, pathsize);
}

int object_store_fetch_object(struct object_store_instance *instance, struct future* f, struct tango_cache_meta_get *meta, enum OBJECT_LOCATION where_to_get)
{
	return cache_evbase_fetch_object(instance->instances[rand()%instance->instance_num], f, meta, where_to_get);
}

int object_store_head_object(struct object_store_instance *instance, struct future* f, struct tango_cache_meta_get *meta)
{
	return cache_evbase_head_object(instance->instances[rand()%instance->instance_num], f, meta);
}

int object_store_delete_object(struct object_store_instance *instance, struct future* f, const char *objkey, const char *minio_addr, const char *bucket)
{
	return cache_evbase_delete_object(instance->instances[rand()%instance->instance_num], f, objkey, minio_addr, bucket);
}

struct object_store_instance *object_store_instance_new(const char* profile_path, const char* section, int thread_num, void *runtimelog)
{
	struct object_store_instance *object_instance;
	struct tango_cache_parameter *parameter;

	parameter = tango_cache_parameter_new(profile_path, section, runtimelog);
	if(parameter == NULL)
	{
		return NULL;
	}

	object_instance = (struct object_store_instance *)calloc(1, sizeof(struct object_store_instance));
	object_instance->instance_num = thread_num;
	object_instance->instances = (struct cache_evbase_instance **)calloc(1, sizeof(struct cache_evbase_instance *)*object_instance->instance_num);

	for(u_int32_t i=0; i<object_instance->instance_num; i++)
	{
		object_instance->instances[i] = cache_evbase_instance_new(parameter, runtimelog);
		if(object_instance->instances[i] == NULL)
		{
			free(parameter);
			free(object_instance);
			return NULL;
		}
	}
	srandom(time(NULL));
	return object_instance;
}

void object_store_global_init(void)
{
	cache_evbase_global_init();
}