#!/usr/bin/env python3
# /// script
# requires-python = ">=3.11"
# ///

import json
import re
import unittest
from pathlib import Path

import stamp_static

ROOT = Path(__file__).resolve().parent.parent
PEEK_JS = (ROOT / "static" / "bufo-peek.js").read_text()


def peek_sprites() -> dict[str, dict]:
    block = re.search(r"/\* sprites:start \*/\s*const SPRITES = (.*?);\s*/\* sprites:end \*/", PEEK_JS, re.S)
    assert block, "sprites block markers missing from static/bufo-peek.js"
    return json.loads(block.group(1))


class PeekSpriteTests(unittest.TestCase):
    def test_every_sprite_exists_in_the_catalog(self):
        catalog = set(json.loads((ROOT / "scripts" / "captions.json").read_text()))
        sprites = peek_sprites()
        self.assertGreater(len(sprites), 50)
        self.assertEqual([n for n in sprites if n not in catalog], [])

    def test_every_sprite_has_a_placeable_cut_and_a_sane_box(self):
        placements = set(re.findall(r"^        '?([a-z-]+)'?: \{", PEEK_JS.split("const placements = {")[1].split("\n    };")[0], re.M))
        for name, entry in peek_sprites().items():
            with self.subTest(name):
                self.assertIn(entry["cut"], placements)
                left, top, right, bottom = entry["box"]
                self.assertTrue(0 <= left < right <= 1 and 0 <= top < bottom <= 1)

    def test_names_the_script_special_cases_are_in_the_block(self):
        special = set(re.findall(r"'(bufo-[a-z-]+\.(?:png|gif))'", PEEK_JS.split("/* sprites:end */")[1]))
        self.assertTrue(special)
        self.assertEqual(special - set(peek_sprites()), set())

    def test_self_hosted_gif_is_present(self):
        name = re.search(r"GIF_URL = '/static/([^']+)'", PEEK_JS).group(1)
        self.assertTrue((ROOT / "static" / name).is_file())


class StampTests(unittest.TestCase):
    def test_index_stamps_match_file_contents(self):
        html = (ROOT / "static" / "index.html").read_text()
        self.assertIn("/static/bufo-peek.js?v=", html)
        self.assertEqual(stamp_static.stamped(html), html, "run: uv run scripts/stamp_static.py")


if __name__ == "__main__":
    unittest.main()