import pandas as pd
import jieba
from wordcloud import WordCloud
import matplotlib.pyplot as plt
from PIL import Image
import numpy as np
import imageio
import os

#读取停用词表
def load_stopwords(file_path):
    with open(file_path, 'r', encoding='utf-8') as f:
        stopwords = set(line.strip() for line in f)
    return stopwords

#过滤停用词
def remove_stopwords(words_list, stopwords):
    return [word for word in words_list if word not in stopwords and len(word) > 1]



def generate_(file_path):
    #读取Excel文件并提取弹幕内容
    df = pd.read_excel(file_path)
    comments = df['danmu'].astype(str)
    text = ' '.join(comments)

    #使用 jieba 分词
    words = jieba.cut(text, cut_all=False)

    #加载停用词表
    stopwords_file = "D://edge//stop.txt"  # 替换为实际路径
    stopwords = load_stopwords(stopwords_file)

    #去除停用词
    filtered_words = remove_stopwords(words, stopwords)

    #将过滤后的词汇重新拼接为一个字符串
    words_list = ' '.join(filtered_words)

    #加载形状图片并生成词云
    mask = np.array(Image.open("D://edge//kk.png"))

    #创建一个用于存储帧的文件夹
    if not os.path.exists("wordcloud_frames"):
        os.makedirs("wordcloud_frames")

    #生成多个帧
    filenames = []
    for i in range(10):  # 生成10帧
        # 动态改变词云的颜色和随机状态
        wordcloud = WordCloud(
            font_path='simhei.ttf',  # 确保支持中文
            background_color='white',
            mask=mask,
            contour_width=1,
            contour_color='black',
            width=800,
            height=600,
            color_func=lambda *args, **kwargs: (np.random.randint(50, 255), np.random.randint(50, 255), np.random.randint(50, 255)),  # 随机颜色
            random_state=i  # 每帧的随机状态不同
        ).generate(words_list)

        # 保存每一帧为图片
        filename = f"wordcloud_frames/frame_{i}.png"
        wordcloud.to_file(filename)
        filenames.append(filename)

    #将所有帧合成为GIF
    with imageio.get_writer("wordcloud_animation.gif", mode="I", duration=0.5) as writer:  # duration表示每帧的显示时间
        for filename in filenames:
            image = imageio.imread(filename)
            writer.append_data(image)

    # 清理临时帧文件
    for filename in filenames:
        os.remove(filename)

    print("词云动图生成成功，保存为 'wordcloud_animation.gif'")
    return 0