import argparse
import os
from models.rank import DataProcess, Trainer, GbdtLrModel
from models import ItemCFModel, HotRecallModel
import time
import pandas as pd

# train_data_path = "./moldes/rank/data/gbdt_data.csv"
# model_path = "./models/rank/weights"

def gbdtlr_train(args):
    model_dir = os.path.join(args.model_path, args.city_uuid)
    train_data_dir = args.train_data_dir
    if not os.path.exists(model_dir):
        os.makedirs(model_dir)
    
    if not os.path.exists(train_data_dir):
        os.makedirs(train_data_dir)
    
    # 准备数据集  
    print("正在整合训练数据...")
    processor = DataProcess(args.city_uuid, args.train_data_dir)
    processor.data_process()
    print("训练数据整合完成！")
    
    # 进行训练
    print("开始训练gbdt-lr模型")
    gbdtlr_trainer(os.path.join(args.train_data_dir, "train_data.csv"), model_dir, "gbdtlr_model.pkl")

def gbdtlr_trainer(train_data_path, model_dir, model_name):
    trainer = Trainer(train_data_path)
    
    start_time = time.time()
    trainer.train()
    end_time = time.time()
    
    training_time_hours = (end_time - start_time) / 3600
    print(f"训练时间: {training_time_hours:.4f} 小时")
    
    eval_metrics = trainer.evaluate()
    
    # 输出评估结果
    print("GBDT-LR Evaluation Metrics:")
    for metric, value in eval_metrics.items():
        print(f"{metric}: {value:.4f}")
        
    # 保存模型
    trainer.save_model(os.path.join(model_dir, model_name))

def itemCF(args):
    itemcf_model = ItemCFModel()
    itemcf_model.train(city_uuid=args.city_uuid, n=args.largest_n, k=args.similarity_k, top_n=args.top_n, n_jobs=args.n_jobs)

def hot_recall(args):
    hot_recall = HotRecallModel(args.city_uuid)
    hot_recall.calculate_all_hot_score()

    
def run():
    parser = argparse.ArgumentParser()
    # 全局参数
    parser.add_argument("--run_train", action='store_true')
    
    parser.add_argument("--city_uuid", type=str, default='00000000000000000000000011445301')
    
    # GBDT-LR模型训练参数
    parser.add_argument("--train_data_dir", type=str, default="./data/gbdt")
    parser.add_argument("--model_path", type=str, default="./models/rank/weights")
    
    # 协同过滤参数
    parser.add_argument("--largest_n", type=int, default=300)
    parser.add_argument("--similarity_k", type=int, default=100)
    parser.add_argument("--top_n", type=int, default=1500)
    parser.add_argument("--n_jobs", type=int, default=4)
    
    
    args = parser.parse_args()
    
    if args.run_train:
        print("正在计算协同过滤...")
        itemCF(args)
        
        print("正在计算热度召回...")
        hot_recall(args)
        
        print("正在进行gbdt_lr训练...")
        gbdtlr_train(args)
        
        
if __name__ == "__main__":
    run()