from pathlib import Path

import pytest

from docling.datamodel.accelerator_options import AcceleratorDevice
from docling.datamodel.base_models import InputFormat
from docling.datamodel.document import ConversionResult
from docling.datamodel.pipeline_options import PdfPipelineOptions
from docling.document_converter import DocumentConverter, PdfFormatOption

from .test_data_gen_flag import GEN_TEST_DATA
from .verify_utils import verify_conversion_result_v2

GENERATE_V2 = GEN_TEST_DATA
pytestmark = pytest.mark.ml_pdf_model

SKIP_DOCTAGS_COMPARISON = ["2203.01017v2.pdf"]

# PDFs that are tested separately in test_failed_pages.py (intentionally failing pages)
SKIP_E2E_TEST = ["skipped_1page.pdf", "skipped_2pages.pdf"]


def get_pdf_paths():
    # Define the directory you want to search
    directory = Path("./tests/data/pdf/sources/")

    # List all PDF files in the directory and its subdirectories
    # Exclude PDFs that are tested separately for failure scenarios
    pdf_files = sorted(
        f for f in directory.rglob("*.pdf") if f.name not in SKIP_E2E_TEST
    )
    return pdf_files


def get_converter():
    pipeline_options = PdfPipelineOptions()
    pipeline_options.do_ocr = False
    pipeline_options.do_table_structure = True
    pipeline_options.table_structure_options.do_cell_matching = True
    pipeline_options.accelerator_options.device = AcceleratorDevice.CPU
    pipeline_options.generate_parsed_pages = True

    converter = DocumentConverter(
        format_options={
            InputFormat.PDF: PdfFormatOption(
                pipeline_options=pipeline_options,
                backend=PdfFormatOption().backend,
            )
        }
    )

    return converter


def test_e2e_pdfs_conversions():
    pdf_paths = get_pdf_paths()
    converter = get_converter()

    for pdf_path in pdf_paths:
        print(f"converting {pdf_path}")

        doc_result: ConversionResult = converter.convert(pdf_path)

        # Decide if to skip doctags comparison
        verify_doctags = pdf_path.name not in SKIP_DOCTAGS_COMPARISON

        verify_conversion_result_v2(
            input_path=pdf_path,
            doc_result=doc_result,
            generate=GENERATE_V2,
            verify_doctags=verify_doctags,
        )
