"""Tests for cask content: correct font paths and valid cask identifier."""
import re

import pytest

from tests.conftest import CASKS_DIR, FONT_FILES_DIR, get_font_dir_names


def _skip_if_no_cask(font_name):
    cask_path = CASKS_DIR / f"{font_name}.rb"
    if not cask_path.exists():
        pytest.skip(f"No cask for {font_name} (no installable font files)")


@pytest.mark.parametrize("font_name", get_font_dir_names())
def test_cask_references_correct_font_path(font_name):
    """Generated cask contains the correct font_files/font-<name>/ path."""
    _skip_if_no_cask(font_name)
    cask_path = CASKS_DIR / f"{font_name}.rb"
    content = cask_path.read_text()
    assert f"homebrew-fonts/font_files/{font_name}/" in content, (
        f"{font_name}: cask does not reference homebrew-fonts/font_files/{font_name}/"
    )


@pytest.mark.parametrize("font_name", get_font_dir_names())
def test_cask_identifier_matches(font_name):
    """Cask declares the correct identifier matching the file name."""
    _skip_if_no_cask(font_name)
    cask_path = CASKS_DIR / f"{font_name}.rb"
    content = cask_path.read_text()
    match = re.search(r'cask\s+"([^"]+)"\s+do', content)
    assert match, f"{font_name}: no 'cask \"...\" do' found"
    assert match.group(1) == font_name, (
        f"{font_name}: expected cask \"{font_name}\", got \"{match.group(1)}\""
    )


@pytest.mark.parametrize("font_name", get_font_dir_names())
def test_cask_has_font_artifacts(font_name):
    """Cask declares at least one font artifact."""
    _skip_if_no_cask(font_name)
    cask_path = CASKS_DIR / f"{font_name}.rb"
    content = cask_path.read_text()
    font_lines = re.findall(r'^\s*font\s+"[^"]+"', content, re.MULTILINE)
    assert font_lines, f"{font_name}: cask has no font artifacts"


@pytest.mark.parametrize("font_name", get_font_dir_names())
def test_cask_font_files_exist_on_disk(font_name):
    """Every font artifact declared in the cask corresponds to a real file in font_files/."""
    _skip_if_no_cask(font_name)
    cask_path = CASKS_DIR / f"{font_name}.rb"
    content = cask_path.read_text()
    # Extract paths from font "..." lines; strip the homebrew-fonts/ archive prefix
    paths = re.findall(r'^\s*font\s+"([^"]+)"', content, re.MULTILINE)
    for rel_path in paths:
        # Cask paths include archive root prefix: homebrew-fonts/font_files/...
        local_path = rel_path.replace("homebrew-fonts/", "", 1)
        full_path = FONT_FILES_DIR.parent / local_path
        assert full_path.is_file(), (
            f"{font_name}: font artifact references missing file: {rel_path}"
        )