"""
Dump all contents of a rollout pkl file.

Usage:
    python scripts/dump_rollout.py --path results/eval_multi/.../val_rollouts_*.pkl
    python scripts/dump_rollout.py --path ... --idx 3        # single episode
    python scripts/dump_rollout.py --path ... --min_turns 2  # only multi-turn episodes
"""

import argparse
import pickle
import sys

def main():
    parser = argparse.ArgumentParser()
    parser.add_argument("--path", required=True)
    parser.add_argument("--idx", type=int, default=None, help="Show a specific episode")
    parser.add_argument("--min_turns", type=int, default=1, help="Only show episodes with >= this many turns")
    args = parser.parse_args()

    with open(args.path, "rb") as f:
        data = pickle.load(f)

    nb = data.non_tensor_batch
    messages_list = nb["messages_list"]
    turn_counts = nb["turn_counts"]

    print(f"Total episodes: {len(messages_list)}")
    print(f"Turn counts: {list(turn_counts)}")
    print()

    indices = [args.idx] if args.idx is not None else range(len(messages_list))

    for i in indices:
        n_turns = turn_counts[i]
        if n_turns < args.min_turns:
            continue

        msgs = messages_list[i]
        print(f"{'='*60}")
        print(f"Episode {i}  turns={n_turns}  messages={len(msgs)}")
        print(f"{'='*60}")
        for msg in msgs:
            print(f"\n[{msg['role'].upper()}]")
            print(msg["content"])

if __name__ == "__main__":
    main()