#!/usr/bin/env python
# -*- encoding: utf-8 -*-
'''
@filename     : hot_recall.py
@description     : 热度召回算法   
@time     : 2025/01/21/00
@author     : Sherlock1011 & Min1027
@Version     : 1.0
'''
import pandas as pd
import redis
import random
import joblib
random.seed(12345)
class HotRecallModel:
    """TODO 1. 将加载数据修改为数据库加载
            2. 将结果保存到redis数据库中"""
    def __init__(self):
        pass
    
    def load_dataset(self, data_path):
        self._order_data = pd.read_excel(data_path)
        
    def _calculate_hot_score(self, hot_name):
        """
        根据热度指标计算热度得分
        :param hot_name: 热度指标
        :type param: string
        :return: 所有热度指标的得分
        :rtype: list
        """
        results = self._order_data.groupby("BB_RETAIL_CUSTOMER_CODE")[hot_name].mean().reset_index()
        sorted_results = results.sort_values(by=hot_name, ascending=False).reset_index(drop=True)
        item_hot_score = []
        # mock热度召回最大分数
        max_score = random.randint(85,100) * 0.01
        total_score = sorted_results.loc[0, hot_name] / max_score
        for row in sorted_results.itertuples(index=True, name="Row"):
            item = {row[1]:(row[2]/total_score)*100}
            item_hot_score.append(item)
        return {"key":f"hot:{hot_name}", "value":item_hot_score}

    def calculate_all_hot_score(self):
        """
        计算所有的热度指标得分
        """
        hot_datas = []
        for col in list(self._order_data[2:]):
            hot_datas.appends(self._calculate_hot_score(col))
            
        return hot_datas
if __name__ == "__main__":
    # 序列化
    model = HotRecallModel()
    joblib.dump(model, "hot_recall.model")