from django.http import JsonResponse
from django.shortcuts import render
from django.views.decorators.csrf import csrf_exempt
import pymysql
from pymysql.cursors import DictCursor
import redis

zy_db_config = {
    'host': '172.16.3.223',
    'port': 3306,
    'user': 'zyds_select',
    'password': 'select',
    'db': 'suyi_cinema',
}

zy_redis_config = {
    'host': '172.16.3.223',
    'port': 6379,
    'db': 0,
    'decode_responses': True
}


@csrf_exempt
def zy_switch_svip(request):
    """
        接口用于切换自营环境
        http://172.16.1.168:8000/config/zy_switch_svip?svip=on
    """
    # 切换自营环境
    svip = request.GET.get('svip')
    if svip == 'on':
        result = zy_switch_svip_db('svip')
    elif svip == 'off':
        result = zy_switch_svip_db('normal')
    else:
        result = False

    # 清除缓存
    clear_result = False
    if result:
        clear_result = zy_clear_cache_redis()

    result_dict = {
        'status': 'success' if clear_result else 'error',
        'message': ('切换环境成功,' if result else '切换环境失败,') + ('清除缓存成功' if clear_result else '清除缓存失败'),
    }
    return JsonResponse(result_dict, json_dumps_params={'ensure_ascii': False})


@csrf_exempt
def zy_clear_cache(request):
    """
        接口用于清除自营缓存
        http://172.16.1.168:8000/config/zy_clear_cache
    """
    result = zy_clear_cache_redis()
    result_dict = {
        'status': 'success' if result else 'error',
        'message': '清除缓存成功' if result else '清除缓存失败',
    }
    return JsonResponse(result_dict, json_dumps_params={'ensure_ascii': False})


def zy_switch_svip_db(env_type):
    db_conn = pymysql.Connect(**zy_db_config)
    cursor = db_conn.cursor(cursor=DictCursor)

    select_sql = "SELECT value FROM suyi_cinema.group_kv_config gkc WHERE gkc.key = 'svip_switch';"
    cursor.execute(select_sql)
    query_result = cursor.fetchone()

    # value 0-非华谊 1-华谊
    sql_str = "UPDATE suyi_cinema.group_kv_config gkc SET gkc.value = %s WHERE gkc.key = 'svip_switch';"
    if env_type == 'svip':
        if query_result['value'] == '1':
            r = 1
        else:
            r = cursor.execute(sql_str, ('1',))
            print('zy_switch_svip_db', r)
    else:
        if query_result['value'] == '1':
            r = cursor.execute(sql_str, ('0',))
            print('zy_switch_svip_db', r)
        else:
            r = 1
    db_conn.commit()
    db_conn.close()
    return True if r == 1 else False


def zy_clear_cache_redis():
    r = redis.Redis(**zy_redis_config)
    result = r.flushdb()
    print('zy_clear_cache_redis', result)
    return result
# Create your views here.