import json
from pathlib import Path

# ======== 必填路径 ========
# 二选一：1) 直接用之前保存的 map.json
map_json_path = None        # 若没有就置为 None
# 或 2) 用左右两个文件重建映射（与前一轮一致）
right_txt_path  = "/nfs/ywang29/Reward_finetuning/VideoX-Fun/VBench/VBench-2.0/prompts/prompt_aug/Wanx_full_text_aug.txt"         # 当 map_json_path 为 None 时启用
left_txt_path = "/nfs/ywang29/Reward_finetuning/VideoX-Fun/VBench/VBench-2.0/prompts/VBench2_full_text.txt"        # 当 map_json_path 为 None 时启用

# 需要被逐行映射的“查询文件”
query_txt_path = "/nfs/ywang29/Reward_finetuning/VideoX-Fun/VBench/VBench-2.0/missing_prompts.txt"

# 输出
mapped_txt_out ="/nfs/ywang29/Reward_finetuning/VideoX-Fun/VBench/VBench-2.0/missing_prompts_wan_aug.txt"
miss_report_out = "query.missing.txt"

# 是否 strip 每行首尾空白
strip_line = True

# ======== 加载映射 ========
def build_mapping_from_pair(left_path, right_path, strip_line=True):
    left_lines  = Path(left_path).read_text(encoding="utf-8").splitlines()
    right_lines = Path(right_path).read_text(encoding="utf-8").splitlines()
    if len(left_lines) != len(right_lines):
        raise ValueError(f"行数不一致：{len(left_lines)} vs {len(right_lines)}")
    if strip_line:
        left_lines  = [s.strip() for s in left_lines]
        right_lines = [s.strip() for s in right_lines]
    mapping = {}
    for l, r in zip(left_lines, right_lines):
        if l in mapping:
            if isinstance(mapping[l], list):
                mapping[l].append(r)
            else:
                mapping[l] = [mapping[l], r]
        else:
            mapping[l] = r
    return mapping

if map_json_path and Path(map_json_path).exists():
    mapping = json.loads(Path(map_json_path).read_text(encoding="utf-8"))
else:
    mapping = build_mapping_from_pair(left_txt_path, right_txt_path, strip_line=strip_line)

# ======== 逐行查询并保存 ========
query_lines = Path(query_txt_path).read_text(encoding="utf-8").splitlines()
if strip_line:
    query_lines = [s.strip() for s in query_lines]

mapped_lines = []
missing = []

for i, q in enumerate(query_lines):
    if q in mapping:
        v = mapping[q]
        # 多值时拼接；也可改为只取第一个：v[0]（当 v 为 list）
        if isinstance(v, list):
            mapped_lines.append(" ||| ".join(v))
        else:
            mapped_lines.append(str(v))
    else:
        mapped_lines.append(f"__MISSING__:{q}")
        missing.append({"line_idx": i, "query": q})

# 写出结果
Path(mapped_txt_out).write_text("\n".join(mapped_lines), encoding="utf-8")

# 写出缺失报告（若有）
if missing:
    Path(miss_report_out).write_text(
        json.dumps(missing, ensure_ascii=False, indent=2),
        encoding="utf-8"
    )
    print(f"完成：{mapped_txt_out}\n有 {len(missing)} 条未匹配，详情见 {miss_report_out}")
else:
    print(f"完成：{mapped_txt_out}\n全部行成功匹配。")