from pathlib import Path

import pytest

from genesis.parsers.excel_parser import ExcelParser
from genesis.parsers.rule_doc_parser import RuleDocParser
from genesis.parsers.source_aggregator import SourceParser
from genesis.parsers.word_template_parser import WordTemplateParser

SAMPLES = Path(__file__).resolve().parents[1] / "sample"


def _d(name: str) -> Path:
    return SAMPLES / name


def _x(name: str) -> Path:
    return SAMPLES / name


def test_new_dev_sample_has_tables():
    p = _x("requirements_newdev.xlsx")
    if not p.exists():
        pytest.skip("样本缺失")
    result = ExcelParser().parse(p)
    by_name = {t.name: t for t in result.tables}
    assert "機能一覧" in by_name
    assert by_name["機能一覧"].rows
    assert any(t.name == "DB定義" for t in result.tables)


def test_additional_modification_has_tables():
    p = _x("requirements_enhancement.xlsx")
    if not p.exists():
        pytest.skip("样本缺失")
    result = ExcelParser().parse(p)
    assert result.tables
    assert any(t.rows for t in result.tables)


def test_free_text_sample_detected():
    p = _x("requirements_freetext.xlsx")
    if not p.exists():
        pytest.skip("样本缺失")
    result = ExcelParser().parse(p)
    assert any(t.extraction_method == "llm_from_free_text" for t in result.tables)


def test_mixed_sample_segments_detected():
    p = _x("requirements_mixed.xlsx")
    if not p.exists():
        pytest.skip("样本缺失")
    result = ExcelParser().parse(p)
    by_name = {t.name: t for t in result.tables}
    assert "機能一覧" in by_name
    assert result.mixed, "混合样本应产出段落"
    mixed = result.mixed[0]
    assert len(mixed.paragraphs) == 2          # 表格段 + 碎片段（・/■ 连续）
    assert [p.kind for p in mixed.paragraphs] == ["table", "free_text"]
    # 表格段无碎片污染
    table = [p.table for p in mixed.paragraphs if p.kind == "table"][0]
    assert table.rows[0]["機能ID"].value == "F101"
    assert len(table.rows) == 3
    # 碎片段含 ・ 与 ■ 两行文本
    ft = [p for p in mixed.paragraphs if p.kind == "free_text"][0]
    assert "改修ポイント" in (ft.text or "")
    assert "対象期間" in (ft.text or "")


def test_word_template_sample_chapters_and_placeholders():
    p = _d("template_design_ja.docx")
    if not p.exists():
        pytest.skip("样本缺失")
    result = WordTemplateParser().parse(p)
    headings = [s for s in result.sections if s.type == "heading"]
    h1 = [h for h in headings if h.level == 1]
    assert len(h1) == 7
    assert h1[0].name == "1. はじめに"
    assert h1[-1].name == "7. バッチ一覧"
    assert "section:introduction" in result.placeholders
    assert "doc_title" in result.placeholders
    bookmarks = [s for s in result.sections if s.type == "bookmark"]
    assert len(bookmarks) == 1
    assert bookmarks[0].name == "template_start"


def test_rule_doc_sample_markdown_and_category():
    p = _d("rules_entry_ja.docx")
    if not p.exists():
        pytest.skip("样本缺失")
    result = RuleDocParser().parse(p, category="write")
    assert result.category == "write"
    assert result.file_type == "word"
    assert "# 1. 機能一覧の書き方" in result.markdown_content
    assert "- 機能ID は F001 から連番で付与する。" in result.markdown_content


def test_write_instruction_sample_category_write():
    p = _d("rules_design_ja.docx")
    if not p.exists():
        pytest.skip("样本缺失")
    result = RuleDocParser().parse(p, category="write")
    assert result.category == "write"
    assert "# 2. 機能一覧" in result.markdown_content


def test_source_parser_full_sample_assembly():
    xlsx = _x("requirements_newdev.xlsx")
    template = _d("template_design_ja.docx")
    rule = _d("rules_entry_ja.docx")
    instr = _d("rules_design_ja.docx")
    if not all(p.exists() for p in [xlsx, template, rule, instr]):
        pytest.skip("样本缺失")
    result = SourceParser().parse(
        requirement_paths=[xlsx],
        template_path=template,
        write_instruction_paths=[instr],
        rule_paths=[rule],
    )
    assert result.tables
    assert result.template is not None
    assert len(result.rule_docs) == 2
    assert all(r.category == "write" for r in result.rule_docs)