import tempfile
import unittest
from pathlib import Path

from zsgdp.cli import main
from zsgdp.pipeline import parse_document


class PipelineTests(unittest.TestCase):
    def test_parse_document_writes_outputs(self):
        with tempfile.TemporaryDirectory() as tmp:
            tmp_path = Path(tmp)
            input_path = tmp_path / "sample.md"
            output_dir = tmp_path / "out"
            input_path.write_text("# Report\n\nThis is a test document.\n", encoding="utf-8")

            parsed = parse_document(input_path, output_dir)

            self.assertTrue(parsed.elements)
            self.assertTrue(parsed.chunks)
            self.assertEqual(parsed.provenance["config_deployment"]["gpu_models_target"], "zeroshotGPU")
            self.assertEqual(parsed.provenance["gpu_runtime"]["gpu_models_target"], "zeroshotGPU")
            self.assertIn("chunking", parsed.provenance)
            self.assertTrue((output_dir / "parsed_document.json").exists())
            self.assertTrue((output_dir / "elements.jsonl").exists())
            self.assertTrue((output_dir / "chunks.jsonl").exists())
            self.assertTrue((output_dir / "chunking_plan.json").exists())
            self.assertTrue((output_dir / "parser_metrics.json").exists())
            self.assertTrue((output_dir / "gpu_runtime.json").exists())
            self.assertTrue((output_dir / "artifact_manifest.json").exists())

    def test_parse_document_exports_gpu_tasks_when_visual_work_exists(self):
        try:
            import fitz  # type: ignore
        except ImportError:
            self.skipTest("PyMuPDF is not installed")

        with tempfile.TemporaryDirectory() as tmp:
            tmp_path = Path(tmp)
            input_path = tmp_path / "visual.pdf"
            output_dir = tmp_path / "out"
            doc = fitz.open()
            page = doc.new_page()
            page.insert_text((72, 72), "Report")
            page.draw_rect(fitz.Rect(72, 120, 180, 180))
            doc.save(input_path)
            doc.close()

            parsed = parse_document(input_path, output_dir, config_overrides={"chunking": {"vision_guided": True}})

            self.assertTrue(parsed.provenance["gpu_tasks"])
            self.assertEqual(parsed.provenance["gpu_task_report"]["task_count"], len(parsed.provenance["gpu_tasks"]))
            self.assertTrue((output_dir / "gpu_tasks.jsonl").exists())
            self.assertTrue((output_dir / "gpu_task_report.json").exists())

    def test_parse_document_reverifies_after_repair(self):
        with tempfile.TemporaryDirectory() as tmp:
            tmp_path = Path(tmp)
            input_path = tmp_path / "table.md"
            output_dir = tmp_path / "out"
            input_path.write_text("# Report\n\n| A | B |\n| --- | --- |\n| 1 | 2 | 3 |\n", encoding="utf-8")

            parsed = parse_document(input_path, output_dir)

            issue_types = [issue.issue_type for issue in parsed.quality_report.issues]
            self.assertNotIn("invalid_table", issue_types)
            self.assertIn("pre_repair_quality", parsed.provenance)
            self.assertTrue(parsed.provenance["repair_iterations"])
            self.assertIn("invalid_table", [issue["issue_type"] for issue in parsed.provenance["pre_repair_quality"]["issues"]])

    def test_export_chunks_cli(self):
        with tempfile.TemporaryDirectory() as tmp:
            tmp_path = Path(tmp)
            input_path = tmp_path / "sample.md"
            output_dir = tmp_path / "out"
            chunks_out = tmp_path / "chunks.json"
            input_path.write_text("# Report\n\nThis is a test document.\n", encoding="utf-8")
            parse_document(input_path, output_dir)

            exit_code = main([
                "export-chunks",
                "--parsed",
                str(output_dir),
                "--format",
                "json",
                "--output",
                str(chunks_out),
            ])

            self.assertEqual(exit_code, 0)
            self.assertTrue(chunks_out.exists())
            self.assertIn('"chunk_id"', chunks_out.read_text(encoding="utf-8"))

    def test_parse_folder_cli_uses_workers_and_unique_output_dirs(self):
        with tempfile.TemporaryDirectory() as tmp:
            tmp_path = Path(tmp)
            docs = tmp_path / "docs"
            output_dir = tmp_path / "out"
            docs.mkdir()
            (docs / "same.md").write_text("# Markdown\n\nHello world.\n", encoding="utf-8")
            (docs / "same.txt").write_text("Plain text document.\n", encoding="utf-8")

            code = main([
                "parse-folder",
                "--input",
                str(docs),
                "--output",
                str(output_dir),
                "--workers",
                "2",
                "--gpu-workers",
                "1",
                "--parsers",
                "text",
            ])

            self.assertEqual(code, 0)
            self.assertTrue((output_dir / "same" / "artifact_manifest.json").exists())
            self.assertTrue((output_dir / "same-txt" / "artifact_manifest.json").exists())

    def test_gpu_status_cli(self):
        code = main(["gpu-status"])

        self.assertEqual(code, 0)


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