from itertools import starmap

import fpdf
import pytest
from funcy import merge

from image_prediction.image_extractor.extractor import ImageMetadataPair
from image_prediction.info import Info
from test.conftest import get_base_position_metadata, add_image, random_single_color_image_from_metadata
from test.utils.stitching import BoxSplitter


@pytest.mark.parametrize("width", [160])
@pytest.mark.parametrize("height", [90])
@pytest.mark.parametrize("page_width", [int(160 * 1.1)])
@pytest.mark.parametrize("page_height", [int(90 * 1.1)])
def test_partial_image_metadata_pairs(patch_image_metadata_pairs, page_width, page_height):

    pdf = fpdf.FPDF(unit="pt", format=(page_width, page_height))

    for pair in patch_image_metadata_pairs:
        add_image(pdf, pair)

    pdf.output("/tmp/bla.pdf")


@pytest.fixture
def patch_image_metadata_pairs(patches_metadata):
    images = map(random_single_color_image_from_metadata, patches_metadata)
    return starmap(ImageMetadataPair, zip(images, patches_metadata))


@pytest.fixture
def patches_metadata(width, height, page_width, page_height):
    metadata = get_base_position_metadata(width, height, page_width, page_height)
    metadata = merge(metadata, {Info.X1: 0, Info.Y1: 0, Info.X2: width, Info.Y2: height})
    patches_metadata = BoxSplitter().split_box(metadata)
    return patches_metadata