# REMINDER: this code needs to be rewritten for the new framework. Remove this comment when the code is fully converted.

import json
import random
from lm_eval.base import Dataset
from ..utils import sh

class PiQA(Dataset):
    def __init__(self):
        self.download()
    def download(self):
        #pass
        #TODO: don't download if files already there
        sh("""
           mkdir -p data/piqa
           wget https://yonatanbisk.com/piqa/data/train.jsonl -O data/piqa/piqa-train.jsonl
           wget https://yonatanbisk.com/piqa/data/train-labels.lst -O data/piqa/piqa-train-labels.lst
           wget https://yonatanbisk.com/piqa/data/valid.jsonl -O data/piqa/piqa-valid.jsonl
           wget https://yonatanbisk.com/piqa/data/valid-labels.lst -O data/piqa/piqa-valid-labels.lst
           wget https://yonatanbisk.com/piqa/data/tests.jsonl -O data/piqa/piqa-test.jsonl
           """)

    def has_training_docs(self):
        return True

    def has_validation_docs(self):
        return True

    def has_test_docs(self):
        return True

    def load_docs(self, textfilename, labelfilename):
        if labelfilename != None:
            return zip([json.loads(entry) for entry in list(open(textfilename,'r'))],list(open(labelfilename, 'r')))
        else:
            return [json.loads(entry) for entry in list(open(textfilename,'r'))]
    
    def training_docs(self):
        return self.load_docs('data/piqa/piqa-train.jsonl', 'data/piqa/piqa-train-labels.lst')
   
    def validation_docs(self):
        return self.load_docs('data/piqa/piqa-valid.jsonl', 'data/piqa/piqa-valid-labels.lst')

    def test_docs(self):
        return self.load_docs('data/piqa/piqa-test.jsonl', None)
    
    def fewshot_description(self):
        # TODO: figure out fewshot description
        return ""
    
    def doc_to_text(self, doc):
        #TODO: check if oa uses newline
        return  doc['goal'] + ' '

    def doc_to_target(self, doc):
        rightanswer = int(doc[1][0]) + 1
        return ''.join([doc[0]['goal'],' ',doc[0]['sol'+str(rightanswer)]])

    def construct_requests(self, doc, ctx):
        """ Uses RequestFactory to construct Requests and returns an iterable of 
        Requests which will be sent to the LM.

        :param doc:
            The document as returned from training_docs, validation_docs, or test_docs.
        :param ctx: str
            The context string, generated by fewshot_context. This includes the natural 
            language description, as well as the few shot examples, and the question
            part of the document for `doc`. 
        """
        # TODO: implement evaluation.
        raise NotImplementedError('Evaluation not implemented')
    
    def process_results(self, doc, results):
        """Take a single document and the LM results and evaluates, returning a 
        dict where keys are the names of submetrics and values are the values of 
        the metric for that one document

        :param doc:
            The document as returned from training_docs, validation_docs, or test_docs.
        :param results:
            The results of the requests created in construct_requests.
        """
        # TODO: implement evaluation.
        raise NotImplementedError('Evaluation not implemented')

    def aggregation(self):
        """
        :returns: {str: [float] -> float}
            A dictionary where keys are the names of submetrics and values are 
            functions that aggregate a list of metrics
        """
        # TODO: implement evaluation.
        raise NotImplementedError('Evaluation not implemented')

    def higher_is_better(self):
        """
        :returns: {str: bool}
            A dictionary where keys are the names of submetrics and values are 
            whether a higher value of the submetric is better
        """
        # TODO: implement evaluation.
        raise NotImplementedError('Evaluation not implemented')