import json
import os
from random import shuffle, seed


def get_dict(filepath):
    output = []
    with open(filepath) as f:
        tmp = json.load(f)["data"]
        for t in tmp:
            for x in t["paragraphs"]:
                context = x["context"]
                for qa in x["qas"]:
                    if qa["is_impossible"]:
                        continue
                    answers = qa["answers"]
                    if len(answers) == 0:
                        continue
                    answer = answers[0]["text"]
                    if answer not in context:
                        continue
                    output.append({
                        "answer": answer,
                        "context": context,
                        "question": qa["question"]
                    })
    return output



train = get_dict("dataset/train-zen-v1.0.json")
dev = get_dict("dataset/dev-zen-v1.0.json")
seed(42)
shuffle(train)
test = train[:len(dev)]
train = train[len(dev):]
with open("data/raw.train.jsonl", "w") as f:
    f.write("\n".join([json.dumps(x) for x in train]))
with open("data/raw.valid.jsonl", "w") as f:
    f.write("\n".join([json.dumps(x) for x in dev]))
with open("data/raw.test.jsonl", "w") as f:
    f.write("\n".join([json.dumps(x) for x in test]))