import typing
import unittest
from datetime import datetime
from decimal import Decimal
from pathlib import Path

from tests.test_util import compare_visually_to_ground_truth

from borb.pdf.canvas.color.color import HexColor
from borb.pdf.canvas.font.simple_font.true_type_font import TrueTypeFont
from borb.pdf.canvas.layout.layout_element import Alignment
from borb.pdf.canvas.layout.page_layout.multi_column_layout import \
    SingleColumnLayout
from borb.pdf.canvas.layout.page_layout.page_layout import PageLayout
from borb.pdf.canvas.layout.table.fixed_column_width_table import \
    FixedColumnWidthTable as Table
from borb.pdf.canvas.layout.text.paragraph import Paragraph
from borb.pdf.document import Document
from borb.pdf.page.page import Page
from borb.pdf.pdf import PDF
from borb.toolkit.text.regular_expression_text_extraction import \
    RegularExpressionTextExtraction

unittest.TestLoader.sortTestMethodsUsing = None


class TestAddRedactAnnotation(unittest.TestCase):
    def __init__(self, methodName="runTest"):
        super().__init__(methodName)
        # find output dir
        p: Path = Path(__file__).parent
        while "output" not in [x.stem for x in p.iterdir() if x.is_dir()]:
            p = p.parent
        p = p / "output"
        self.output_dir = Path(p, Path(__file__).stem.replace(".py", ""))
        if not self.output_dir.exists():
            self.output_dir.mkdir()

    def test_write_document(self):

        # create document
        pdf = Document()

        # add page
        page = Page()
        pdf.append_page(page)

        # add test information
        layout = SingleColumnLayout(page)
        layout.add(
            Table(number_of_columns=2, number_of_rows=3)
            .add(Paragraph("Date", font="Helvetica-Bold"))
            .add(Paragraph(datetime.now().strftime("%d/%m/%Y, %H:%M:%S")))
            .add(Paragraph("Test", font="Helvetica-Bold"))
            .add(Paragraph(Path(__file__).stem))
            .add(Paragraph("Description", font="Helvetica-Bold"))
            .add(
                Paragraph(
                    "This test creates a PDF with an empty Page, and a Paragraph of text. A subsequent test will add a redact annotation."
                )
            )
            .set_padding_on_all_cells(Decimal(2), Decimal(2), Decimal(2), Decimal(2))
        )

        layout.add(
            Paragraph(
                """
            Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. 
            Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. 
            Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. 
            Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
            """,
                font_size=Decimal(10),
                vertical_alignment=Alignment.TOP,
                horizontal_alignment=Alignment.LEFT,
                padding_top=Decimal(5),
                padding_right=Decimal(5),
                padding_bottom=Decimal(5),
                padding_left=Decimal(5),
            )
        )

        # attempt to store PDF
        with open(self.output_dir / "output_001.pdf", "wb") as out_file_handle:
            PDF.dumps(out_file_handle, pdf)

    def test_add_redact_annotation(self):

        # attempt to read PDF
        doc = None
        l = RegularExpressionTextExtraction("ad minim veniam")
        with open(self.output_dir / "output_001.pdf", "rb") as in_file_handle:
            doc = PDF.loads(in_file_handle, [l])

        for m in l.get_matches_for_page(0):
            for bb in m.get_bounding_boxes():
                bb = bb.grow(Decimal(2))
                doc.get_page(0).append_redact_annotation(
                    bb,
                    stroke_color=HexColor("FF0000"),
                )

        # attempt to store PDF
        with open(self.output_dir / "output_002.pdf", "wb") as out_file_handle:
            PDF.dumps(out_file_handle, doc)

        # compare visually
        compare_visually_to_ground_truth(self.output_dir / "output_002.pdf")

    def test_add_redact_annotation_to_wild_caught_document(self):

        doc: typing.Optional[Document] = None
        input_dir: Path = Path(__file__).parent

        # read Document
        l = RegularExpressionTextExtraction("[sS]orbitol")
        with open(input_dir / "input_001.pdf", "rb") as pdf_file_handle:
            doc = PDF.loads(pdf_file_handle, [l])

        for m in l.get_matches_for_page(0):
            for bb in m.get_bounding_boxes():
                bb = bb.grow(Decimal(2))
                doc.get_page(0).append_redact_annotation(
                    bb,
                    stroke_color=HexColor("FF0000"),
                )

        # attempt to store PDF
        with open(self.output_dir / "output_003.pdf", "wb") as out_file_handle:
            PDF.dumps(out_file_handle, doc)

        # compare visually
        compare_visually_to_ground_truth(self.output_dir / "output_003.pdf")

    def test_create_document_with_truetype_font(self):

        pdf_doc: Document = Document()

        page: Page = Page()
        pdf_doc.append_page(page)

        layout: PageLayout = SingleColumnLayout(page)

        true_type_font_file: Path = Path(__file__).parent / "Jsfont-Regular.ttf"
        layout.add(
            Paragraph(
                "Lorem ipsum",
                font_size=Decimal(20),
                font=TrueTypeFont.true_type_font_from_file(true_type_font_file),
            )
        )

        # attempt to store PDF
        with open(self.output_dir / "output_004.pdf", "wb") as out_file_handle:
            PDF.dumps(out_file_handle, pdf_doc)

    def test_add_redact_annotation_to_document_with_truetype_font(self):

        doc: typing.Optional[Document] = None

        # read Document
        l = RegularExpressionTextExtraction("[lL]orem")
        with open(self.output_dir / "output_004.pdf", "rb") as pdf_file_handle:
            doc = PDF.loads(pdf_file_handle, [l])

        for m in l.get_matches_for_page(0):
            for bb in m.get_bounding_boxes():
                bb = bb.grow(Decimal(2))
                doc.get_page(0).append_redact_annotation(
                    bb,
                    stroke_color=HexColor("FF0000"),
                )

        # attempt to store PDF
        with open(self.output_dir / "output_005.pdf", "wb") as out_file_handle:
            PDF.dumps(out_file_handle, doc)
