#!/bin/python
#
# python-monero
# Copyright 2014,2015 moneromooo
#
# Redistribution and use in source and binary forms, with or without modification, are
# permitted provided that the following conditions are met:
# 
# 1. Redistributions of source code must retain the above copyright notice, this list of
#    conditions and the following disclaimer.
# 
# 2. Redistributions in binary form must reproduce the above copyright notice, this list
#    of conditions and the following disclaimer in the documentation and/or other
#    materials provided with the distribution.
# 
# 3. Neither the name of the copyright holder nor the names of its contributors may be
#    used to endorse or promote products derived from this software without specific
#    prior written permission.
# 
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
# THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

import redis
from log import log_error, log_warn, log_info, log_log

redisdb = None

def connect_to_redis(host,port):
  log_info('Connecting to Redis at %s:%u' % (host, port))
  try:
    global redisdb
    redisdb = redis.Redis(host=host,port=port)
    return redisdb
  except Exception, e:
    log_error( 'Error initializing redis: %s' % str(e))
    exit()

def redis_pipeline():
  return redisdb.pipeline()

def redis_exists(k):
  return redisdb.exists(k)

def redis_get(k):
  return redisdb.get(k)

def redis_set(k,v):
  return redisdb.set(k,v)

def redis_hexists(t,k):
  return redisdb.hexists(t,k)

def redis_hget(t,k):
  return redisdb.hget(t,k)

def redis_hgetall(t):
  return redisdb.hgetall(t)

def redis_hset(t,k,v):
  return redisdb.hset(t,k,v)

def redis_hincrby(t,k,v):
  return redisdb.hincrby(t,k,v)

def redis_hdel(t,k):
  return redisdb.hdel(t,k)

def redis_incrby(k,v):
  return redisdb.incrby(k,v)

def redis_sadd(k,v):
  return redisdb.sadd(k,v)

def redis_smembers(k):
  return redisdb.smembers(k)

def redis_sismember(k,v):
  return redisdb.sismember(k,v)

def redis_rpush(k,v):
  return redisdb.rpush(k,v)

def redis_lpop(k):
  return redisdb.lpop(k)

def redis_llen(k):
  return redisdb.llen(k)

def redis_lindex(k,n):
  return redisdb.lindex(k,n)

def redis_lset(k,i,v):
  return redisdb.lset(k,i,v)

def redis_zincrby(t,k,s):
  return redisdb.zincrby(t,k,s)

def redis_zscore(t,k):
  return redisdb.zscore(t,k)

def redis_zrangebylex(t,x0,x1):
  return redisdb.zrangebylex(t,x0,x1)

def redis_keys(s):
  return redisdb.keys(s)

def redis_delete(k):
  return redisdb.delete(k)


def CompatibilityCheck():
  try:
    r = redis.Redis()
    if not r.pipeline: raise RuntimeError('pipeline call not found')
    p = r.pipeline()
    if not p.exists: raise RuntimeError('exists call not found')
    if not p.get: raise RuntimeError('get call not found')
    if not p.set: raise RuntimeError('set call not found')
    if not p.hexists: raise RuntimeError('hexists call not found')
    if not p.hget: raise RuntimeError('hget call not found')
    if not p.hgetall: raise RuntimeError('hgetall call not found')
    if not p.hset: raise RuntimeError('hset call not found')
    if not p.hincrby: raise RuntimeError('hincrby call not found')
    if not p.hdel: raise RuntimeError('hdel call not found')
    if not p.incrby: raise RuntimeError('incrby call not found')
    if not p.sadd: raise RuntimeError('sadd call not found')
    if not p.smembers: raise RuntimeError('smembers call not found')
    if not p.sismember: raise RuntimeError('sismember call not found')
    if not p.rpush: raise RuntimeError('rpush call not found')
    if not p.lpop: raise RuntimeError('lpop call not found')
    if not p.llen: raise RuntimeError('llen call not found')
    if not p.lindex: raise RuntimeError('lindex call not found')
    if not p.lset: raise RuntimeError('lset call not found')
    if not p.zincrby: raise RuntimeError('zincrby call not found')
    if not p.zscore: raise RuntimeError('zscore call not found')
    if not p.zrangebylex: raise RuntimeError('zrangebylex call not found')
    if not p.keys: raise RuntimeError('keys call not found')
    if not p.execute: raise RuntimeError('execute call not found')
    if not p.delete: raise RuntimeError('delete call not found')
  except Exception,e:
    log_error('Error checking redis compatibility: %s' % str(e))
    exit(1)

CompatibilityCheck()