from collections import defaultdict
import os
import sys
import nltk
import dotenv
import typer

from typing import List, Optional

from langchain.text_splitter import RecursiveCharacterTextSplitter

from parser.file.bulk import SimpleDirectoryReader
from parser.schema.base import Document
from parser.open_ai_func import call_openai_api, get_user_permission

dotenv.load_dotenv()

app = typer.Typer(add_completion=False)

nltk.download('punkt', quiet=True)
nltk.download('averaged_perceptron_tagger', quiet=True)


#Splits all files in specified folder to documents
@app.command()
def ingest(yes: bool = typer.Option(False, "-y", "--yes", prompt=False,
                                                   help="Whether to skip price confirmation"),
           dir: Optional[List[str]] = typer.Option(["inputs"],
                                                   help="""List of paths to directory for index creation.
                                                        E.g. --dir inputs --dir inputs2"""),
           file: Optional[List[str]] = typer.Option(None,
                                                   help="""File paths to use (Optional; overrides dir).
                                                        E.g. --file inputs/1.md --file inputs/2.md"""),
           recursive: Optional[bool] = typer.Option(True,
                                                   help="Whether to recursively search in subdirectories."),
           limit: Optional[int] = typer.Option(None,
                                                   help="Maximum number of files to read."),
           formats: Optional[List[str]] = typer.Option([".rst", ".md"],
                                                   help="""List of required extensions (list with .)
                                                        Currently supported: .rst, .md, .pdf, .docx, .csv, .epub"""),
           exclude: Optional[bool] = typer.Option(True, help="Whether to exclude hidden files (dotfiles).")):

    """
        Creates index from specified location or files.
        By default /inputs folder is used, .rst and .md are parsed.
    """

    def process_one_docs(directory, folder_name):
        raw_docs = SimpleDirectoryReader(input_dir=directory, input_files=file, recursive=recursive,
                                         required_exts=formats, num_files_limit=limit,
                                         exclude_hidden=exclude).load_data()
        raw_docs = [Document.to_langchain_format(raw_doc) for raw_doc in raw_docs]
        print(raw_docs)
        # Here we split the documents, as needed, into smaller chunks.
        # We do this due to the context limits of the LLMs.
        text_splitter = RecursiveCharacterTextSplitter()
        docs = text_splitter.split_documents(raw_docs)

        # Here we check for command line arguments for bot calls.
        # If no argument exists or the yes is not True, then the
        # user permission is requested to call the API.
        if len(sys.argv) > 1:
            if yes:
                call_openai_api(docs, folder_name)
            else:
                get_user_permission(docs, folder_name)
        else:
            get_user_permission(docs, folder_name)

    folder_counts = defaultdict(int)
    folder_names = []
    for dir_path in dir:
        folder_name = os.path.basename(os.path.normpath(dir_path))
        folder_counts[folder_name] += 1
        if folder_counts[folder_name] > 1:
            folder_name = f"{folder_name}_{folder_counts[folder_name]}"
        folder_names.append(folder_name)

    for directory, folder_name in zip(dir, folder_names):
        process_one_docs(directory, folder_name)

if __name__ == "__main__":
  app()