#!/usr/bin/env python3
import json, os
from collections import defaultdict

BASE = "/opt/tiger/PLLM2.0/preference_datasets_topic"
IN_FILES = [
    "preference_topic_writing_0_4.json",
    "preference_topic_writing_5_9.json"
]

def main():
    buckets = defaultdict(list)

    for fname in IN_FILES:
        with open(f"{BASE}/{fname}", "r", encoding="utf-8") as f:
            data = json.load(f)
        for item in data:
            cid = int(item.get("cluster", -1))
            if 0 <= cid <= 9:
                buckets[cid].append(item)

    # generate cluster_0 ~ cluster_9
    for cid in range(10):
        out = f"{BASE}/preference_cluster_{cid}.json"
        with open(out, "w", encoding="utf-8") as f:
            json.dump(buckets[cid], f, ensure_ascii=False, indent=2)
        print(f"cluster {cid}: {len(buckets[cid])} → {out}")

if __name__ == "__main__":
    main()