import unittest

from zsgdp.schema import DocumentProfile, Element, FigureObject, PageProfile, ParsedDocument
from zsgdp.verify import verify_parse
from zsgdp.verify.table_quality import markdown_table_is_valid


class VerifyTests(unittest.TestCase):
    def test_verify_simple_document(self):
        profile = DocumentProfile(
            doc_id="d1",
            source_path="sample.txt",
            file_type="text",
            page_count=1,
            extension=".txt",
            pages=[PageProfile(page_num=1, digital_text_chars=11, digital_text_quality=1.0)],
        )
        parsed = ParsedDocument(doc_id="d1", source_path="sample.txt", file_type="text")
        parsed.elements.append(
            Element(
                element_id="e1",
                doc_id="d1",
                page_num=1,
                type="paragraph",
                text="hello world",
                reading_order=1,
                confidence=0.9,
            )
        )

        parsed.quality_report = verify_parse(profile, parsed)

        self.assertEqual(parsed.quality_report.score, 1.0)
        self.assertEqual(parsed.quality_report.metrics["element_count"], 1)

    def test_markdown_table_requires_data_row(self):
        self.assertFalse(markdown_table_is_valid("| A | B |\n| --- | --- |"))
        self.assertTrue(markdown_table_is_valid("| A | B |\n| --- | --- |\n| 1 | 2 |"))

    def test_verify_flags_missing_figure_context(self):
        profile = DocumentProfile(
            doc_id="d1",
            source_path="sample.pdf",
            file_type="pdf",
            page_count=1,
            extension=".pdf",
            pages=[PageProfile(page_num=1, digital_text_chars=12, digital_text_quality=1.0)],
        )
        parsed = ParsedDocument(doc_id="d1", source_path="sample.pdf", file_type="pdf")
        parsed.elements.append(
            Element(element_id="e1", doc_id="d1", page_num=1, type="paragraph", text="hello world!", reading_order=1)
        )
        parsed.figures.append(FigureObject(figure_id="f1", page_num=1))

        report = verify_parse(profile, parsed)

        issue_types = [issue.issue_type for issue in report.issues]
        self.assertIn("missing_figure_region", issue_types)
        self.assertIn("missing_figure_caption", issue_types)
        self.assertEqual(report.metrics["figure_description_coverage"], 0.0)

    def test_verify_flags_formula_heavy_page_without_formula_elements(self):
        profile = DocumentProfile(
            doc_id="d1",
            source_path="math.pdf",
            file_type="pdf",
            page_count=1,
            extension=".pdf",
            pages=[PageProfile(page_num=1, digital_text_chars=24, digital_text_quality=1.0, formula_density=0.30)],
        )
        parsed = ParsedDocument(doc_id="d1", source_path="math.pdf", file_type="pdf")
        parsed.elements.append(
            Element(element_id="e1", doc_id="d1", page_num=1, type="paragraph", text="Equation heavy page text", reading_order=1)
        )

        report = verify_parse(profile, parsed)

        self.assertIn("missing_formula_regions", [issue.issue_type for issue in report.issues])
        self.assertEqual(report.metrics["formula_page_coverage"], 0.0)


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