#ifndef REDIS_H
#define REDIS_H

#include <stdio.h>
#include <QString>
#include <string.h>
#include <stddef.h>
#include <stdarg.h>
#include <string.h>
#include <assert.h>
#include <hiredis/hiredis.h>


#define REDIS_HOST        "127.0.0.1"
#define REDIS_PORT        6379

redisContext *c = NULL;

int redisconnected;

int redis_init()
{
    c = redisConnect(REDIS_HOST, REDIS_PORT);
    if (NULL == c || c->err) {
        if(c) {
            printf("Redis [%s:%d], Error:[%s]\n", REDIS_HOST, REDIS_PORT, c->errstr);
            redisFree(c);
        } else {
            printf("Redis [%s:%d] failure\n", REDIS_HOST, REDIS_PORT);
        }
        return -1;
    }

    return 0;
}

void redis_free()
{
    if (c) {
        redisFree(c);
    }
    c = NULL;
}

int redis_save(const char *cmd)
{
    int i = 0;
    redisReply *r = NULL;
    if (NULL == cmd) {
        return -1;
    }

    printf("%s\n", cmd);

    r = (redisReply *)redisCommand(c, cmd);
    if (NULL == r) {
        printf("Error[%d:%s]", c->err, c->errstr);
        return -1;
    }

    switch(r->type) {
    case REDIS_REPLY_STATUS:
        printf("type:%s, reply->len:%ld reply->str:%s\n", "REDIS_REPLY_STATUS", r->len, r->str);
        break;
    case REDIS_REPLY_ERROR:
        printf("type:%s, reply->len:%ld reply->str:%s\n", "REDIS_REPLY_ERROR", r->len, r->str);
        break;
    case REDIS_REPLY_INTEGER:
        printf("type:%s, reply->integer:%lld\n", "REDIS_REPLY_INTEGER", r->integer);
        break;
    case REDIS_REPLY_NIL:
        printf("type:%s, no data\n", "REDIS_REPLY_NIL");
        break;
    case REDIS_REPLY_STRING:
        printf("type:%s, reply->len:%ld reply->str:%s\n", "REDIS_REPLY_STRING", r->len, r->str);
        break;
    case REDIS_REPLY_ARRAY:
        printf("type:%s, reply->elements:%ld\n", "REDIS_REPLY_ARRAY", r->elements);
        for (i = 0; i < r->elements; i++) {
            printf("%d: %s\n", i, r->element[i]->str);
        }
        break;
    default:
        printf("unkonwn type:%d\n", r->type);
        break;
    }

    /*release reply and context */
    freeReplyObject(r);
    return 0;
}

QString redis_qstring(const char *cmd)
{
    redisReply *r = NULL;
    if (NULL == cmd) {
        return "error";
    }

    printf("%s\n", cmd);

    r = (redisReply *)redisCommand(c, cmd);
    if (NULL == r) {
        printf("Error[%d:%s]", c->err, c->errstr);
        return "error";
    }

    QString data = r->str;

    /*release reply and context */
    freeReplyObject(r);
    return data;
}



#endif // REDIS_H