# q4_1.py
import json
import matplotlib.pyplot as plt
from collections import Counter

# 读取上级目录的 movies.json
with open("../q4_2/movies.json", "r", encoding="utf-8") as f:
    data = json.load(f)

movies = data["movies"]

# 统计每个类型有多少部电影
genres = [m["genre"] for m in movies]
genre_count = Counter(genres)

# X轴：类型名称  Y轴：数量
x = list(genre_count.keys())
y = list(genre_count.values())

# 绘制柱状图
plt.bar(x, y)

# 标题
plt.title("类型电影数量分布")

# 保存图片
plt.savefig("q4_1_bar.png", dpi=150)
plt.close()

print("✅ q4_1 柱状图完成！已生成 q4_1_bar.png")