import pandas as pd
import pymysql
import datetime


def con_sql(db,sql):
    cursor = db.cursor()
    try:
        cursor.execute(sql)
        result = cursor.fetchall()
        df = pd.DataFrame(list(result))
    except Exception:
        print("发生异常", Exception)
        df = pd.DataFrame()
    finally:
        db.close()
    return df


def multi_hot(df,column,n):
    df[column] = df[column].fillna("lost_na")
    app_list_value = [i.split(",") for i in df[column].unique()]
    app_list_unique = []
    for i in app_list_value:
        app_list_unique.extend(i)
    app_list_unique = list(set(app_list_unique))
    number = len(app_list_unique)
    app_list_map = dict(zip(app_list_unique, list(range(n, number + n))))
    df[column] = df[column].apply(app_list_func, args=(app_list_map,))
    return number,app_list_map


def get_data():
    db = pymysql.connect(host='10.66.157.22', port=4000, user='root', passwd='3SYz54LS9#^9sBvC', db='jerry_test')
    sql = "select max(stat_date) from {}".format(train_data_set)
    validate_date = con_sql(db, sql)[0].values.tolist()[0]
    print("validate_date:" + validate_date)
    temp = datetime.datetime.strptime(validate_date, "%Y-%m-%d")
    start = (temp - datetime.timedelta(days=300)).strftime("%Y-%m-%d")
    print(start)
    db = pymysql.connect(host='10.66.157.22', port=4000, user='root', passwd='3SYz54LS9#^9sBvC', db='jerry_test')
    sql = "select e.y,e.z,e.stat_date,e.ucity_id,feat.level2_ids,e.ccity_name," \
          "u.device_type,u.manufacturer,u.channel,c.top,e.device_id,cut.time,dl.app_list " \
          "from {} e left join user_feature u on e.device_id = u.device_id " \
          "left join cid_type_top c on e.device_id = c.device_id " \
          "left join cid_time_cut cut on e.cid_id = cut.cid " \
          "left join device_app_list dl on e.device_id = dl.device_id " \
          "left join diary_feat feat on e.cid_id = feat.diary_id " \
          "where e.stat_date >= '{}'".format(train_data_set,start)
    df = con_sql(db, sql)
    # print(df.shape)
    df = df.rename(columns={0: "y", 1: "z", 2: "stat_date", 3: "ucity_id", 4: "clevel2_id", 5: "ccity_name",
                            6: "device_type", 7: "manufacturer", 8: "channel", 9: "top", 10: "device_id",
                            11: "time",12:"app_list"})
    print("esmm data ok")
    # print(df.head(2)
    print("before")
    print(df.shape)
    print("after")
    df = df.drop_duplicates()
    df = df.drop_duplicates(["ucity_id", "clevel2_id", "ccity_name", "device_type", "manufacturer",
                             "channel", "top", "time", "stat_date","app_list"])

    app_list_number,app_list_map = multi_hot(df,"app_list",1)
    level2_number,level2_map = multi_hot(df,"clevel2_id",1+app_list_number)
    # df["app_list"] = df["app_list"].fillna("lost_na")
    # app_list_value = [i.split(",") for i in df["app_list"].unique()]
    # app_list_unique = []
    # for i in app_list_value:
    #     app_list_unique.extend(i)
    # app_list_unique = list(set(app_list_unique))
    # app_list_map = dict(zip(app_list_unique, list(range(1, len(app_list_unique) + 1))))
    # df["app_list"] = df["app_list"].apply(app_list_func,args=(app_list_map,))


    unique_values = []
    features = ["ucity_id", "ccity_name", "device_type", "manufacturer",
                "channel", "top", "time", "stat_date"]
    for i in features:
        df[i] = df[i].astype("str")
        df[i] = df[i].fillna("lost")
        # 下面这行代码是为了区分不同的列中有相同的值
        df[i] = df[i] + i
        unique_values.extend(list(df[i].unique()))

    temp = list(range(1+app_list_number+level2_number, 1 + app_list_number+level2_number + len(unique_values)))
    value_map = dict(zip(unique_values,temp))

    df = df.drop("device_id", axis=1)
    train = df[df["stat_date"] != validate_date+"stat_date"]
    test = df[df["stat_date"] == validate_date+"stat_date"]
    for i in ["ucity_id", "ccity_name", "device_type", "manufacturer",
                "channel", "top", "time", "stat_date"]:
        train[i] = train[i].map(value_map)
        test[i] = test[i].map(value_map)

    print("train shape")
    print(train.shape)
    print("test shape")
    print(test.shape)

    write_csv(train, "tr",100000)
    write_csv(test, "va",80000)

    return validate_date,value_map,app_list_map,level2_map


def app_list_func(x,l):
    b = x.split(",")
    e = []
    for i in b:
        if i in l.keys():
            e.append(l[i])
        else:
            e.append(0)
    return ",".join([str(j) for j in e])


def write_csv(df,name,n):
    for i in range(0, df.shape[0], n):
        if i == 0:
            temp = df.iloc[0:n]
        elif i + n > df.shape[0]:
            temp = df.iloc[i:]
        else:
            temp = df.iloc[i:i + n]
        temp.to_csv(path + name+ "/{}_{}.csv".format(name,i), index=False)


def get_predict(date,value_map,app_list_map,level2_map):
    db = pymysql.connect(host='10.66.157.22', port=4000, user='root', passwd='3SYz54LS9#^9sBvC', db='jerry_test')
    sql = "select e.y,e.z,e.label,e.ucity_id,feat.level2_ids,e.ccity_name," \
          "u.device_type,u.manufacturer,u.channel,c.top,e.device_id,e.cid_id,cut.time,dl.app_list " \
          "from esmm_pre_data e left join user_feature u on e.device_id = u.device_id " \
          "left join cid_type_top c on e.device_id = c.device_id " \
          "left join cid_time_cut cut on e.cid_id = cut.cid " \
          "left join device_app_list dl on e.device_id = dl.device_id " \
          "left join diary_feat feat on e.cid_id = feat.diary_id"
    df = con_sql(db, sql)
    df = df.rename(columns={0: "y", 1: "z", 2: "label", 3: "ucity_id", 4: "clevel2_id", 5: "ccity_name",
                            6: "device_type", 7: "manufacturer", 8: "channel", 9: "top",
                            10: "device_id", 11: "cid_id", 12: "time",13:"app_list"})

    df["stat_date"] = date
    print(df.head(6))
    df["app_list"] = df["app_list"].fillna("lost_na")
    df["app_list"] = df["app_list"].apply(app_list_func,args=(app_list_map,))
    df["clevel2_id"] = df["clevel2_id"].fillna("lost_na")
    df["clevel2_id"] = df["clevel2_id"].apply(app_list_func, args=(level2_map,))

    # print("predict shape")
    # print(df.shape)
    df["uid"] = df["device_id"]
    df["city"] = df["ucity_id"]
    features = ["ucity_id", "ccity_name", "device_type", "manufacturer",
                "channel", "top", "time", "stat_date"]
    for i in features:
        df[i] = df[i].astype("str")
        df[i] = df[i].fillna("lost")
        df[i] = df[i] + i

    native_pre = df[df["label"] == 0]
    native_pre = native_pre.drop("label", axis=1)
    nearby_pre = df[df["label"] == 1]
    nearby_pre = nearby_pre.drop("label", axis=1)

    for i in ["ucity_id", "ccity_name", "device_type", "manufacturer",
                "channel", "top", "time", "stat_date"]:
        native_pre[i] = native_pre[i].map(value_map)
        # TODO 没有覆盖到的类别会处理成na，暂时用0填充，后续完善一下
        native_pre[i] = native_pre[i].fillna(0)

        nearby_pre[i] = nearby_pre[i].map(value_map)
        # TODO 没有覆盖到的类别会处理成na，暂时用0填充，后续完善一下
        nearby_pre[i] = nearby_pre[i].fillna(0)


    print("native")
    print(native_pre.shape)

    native_pre[["uid","city","cid_id"]].to_csv(path+"native.csv",index=False)
    write_csv(native_pre, "native",200000)

    print("nearby")
    print(nearby_pre.shape)

    nearby_pre[["uid","city","cid_id"]].to_csv(path+"nearby.csv",index=False)
    write_csv(nearby_pre, "nearby", 160000)


if __name__ == '__main__':
    train_data_set = "esmm_train_data"
    path = "/data/esmm/"
    date,value,app_list,level2 = get_data()
    get_predict(date, value,app_list,level2)