"""Tests for Big Brain Testament rewrite artifact."""

from pathlib import Path

import pytest


@pytest.fixture
def artifact_path():
    return Path(__file__).parent.parent.parent / "docs" / "big-brain-testament-draft.md"


class TestArtifactExists:
    def test_file_exists(self, artifact_path):
        assert artifact_path.exists()

    def test_not_empty(self, artifact_path):
        content = artifact_path.read_text()
        assert len(content) > 1000


class TestArtifactStructure:
    def test_has_original_passage(self, artifact_path):
        content = artifact_path.read_text()
        assert "Original Passage" in content
        assert "rain didn't fall" in content
        assert "Jefferson Street Overpass" in content

    def test_has_rewrite(self, artifact_path):
        content = artifact_path.read_text()
        assert "Rewrite" in content
        assert "surrendered" in content.lower() or "surrendered" in content

    def test_has_comparison(self, artifact_path):
        content = artifact_path.read_text()
        assert "Comparison" in content
        assert "Original:" in content
        assert "Rewrite:" in content
        assert "Delta:" in content

    def test_has_compression_stats(self, artifact_path):
        content = artifact_path.read_text()
        assert "Compression" in content or "Stats" in content
        assert "119" in content or "100" in content

    def test_has_testament_principle(self, artifact_path):
        content = artifact_path.read_text()
        assert "Testament Principle" in content
        assert "don't make longer" in content or "Mastery through iteration" in content

    def test_has_big_brain_placeholder(self, artifact_path):
        content = artifact_path.read_text()
        assert "Big Brain" in content

    def test_references_issue(self, artifact_path):
        content = artifact_path.read_text()
        assert "578" in content


class TestRewriteQuality:
    def test_rewrite_is_shorter(self, artifact_path):
        content = artifact_path.read_text()
        # The comparison table should show the rewrite is shorter
        assert "-16%" in content or "shorter" in content.lower() or "100" in content

    def test_rewrite_preserves_key_images(self, artifact_path):
        content = artifact_path.read_text()
        rewrite_section = content.split("Rewrite: Timmy Draft")[1].split("---")[0] if "Rewrite: Timmy Draft" in content else ""
        assert "rain" in rewrite_section.lower()
        assert "bridge" in rewrite_section.lower()
        assert "grief" in rewrite_section.lower()
        assert "gravity" in rewrite_section.lower()