# SPDX-FileCopyrightText: 2024 James R. Barlow
# SPDX-License-Identifier: MPL-2.0

from __future__ import annotations

import pytest
from pikepdf import Array, Dictionary, Name, NameTree, Pdf

from ocrmypdf._annots import remove_broken_goto_annotations


def test_remove_broken_goto_annotations(resources):
    with Pdf.open(resources / 'link.pdf') as pdf:
        assert not remove_broken_goto_annotations(pdf), "File should not be modified"

        # Construct Dests nametree
        nt = NameTree.new(pdf)
        names = pdf.Root[Name.Names] = pdf.make_indirect(Dictionary())
        names[Name.Dests] = nt.obj
        # Create a broken named destination
        nt['Invalid'] = pdf.make_indirect(Dictionary())
        # Create a valid named destination
        nt['Valid'] = Array([pdf.pages[0].obj, Name.XYZ, 0, 0, 0])

        pdf.pages[0].Annots[0].A.D = 'Missing'
        pdf.pages[1].Annots[0].A.D = 'Valid'

        assert remove_broken_goto_annotations(pdf), "File should be modified"

        assert Name.D not in pdf.pages[0].Annots[0].A
        assert Name.D in pdf.pages[1].Annots[0].A