"""
tests/test_emoji_markup_parser.py
EmojiMarkupParser 단위 테스트
"""

import pytest
from ctstruct import NodeType
from ctstruct.parsers import EmojiMarkupParser


SAMPLE = """\
✅예시 양식

🔹1번 항목
홍길동 홍길순 홍길영 홍길준
홍길호 홍길윤

🔹2번 항목
🔸2-1 항목
(건강) 홍길찬 홍길만

🔸2-2 항목
(직장) 홍길주
"""


@pytest.fixture
def tree():
    return EmojiMarkupParser().parse(SAMPLE)


# ── 문서 제목 ─────────────────────────────────────────────────────────────────

class TestTitle:
    def test_title_set(self, tree):
        assert tree.root.attr("title") == "예시 양식"


# ── 섹션 구조 ─────────────────────────────────────────────────────────────────

class TestSections:
    def test_two_top_sections(self, tree):
        secs = [n for n in tree.root.children if n.node_type == NodeType.SECTION]
        assert len(secs) == 2

    def test_section1_name(self, tree):
        sec = tree.root.children[0]
        assert sec.content == "1번 항목"
        assert sec.attr("level") == 1

    def test_section2_name(self, tree):
        sec = tree.root.children[1]
        assert sec.content == "2번 항목"
        assert sec.attr("level") == 1

    def test_subsections_under_section2(self, tree):
        sec2 = tree.root.children[1]
        subsecs = [n for n in sec2.children if n.node_type == NodeType.SECTION]
        assert len(subsecs) == 2
        assert subsecs[0].content == "2-1 항목"
        assert subsecs[1].content == "2-2 항목"

    def test_subsection_level(self, tree):
        sec2 = tree.root.children[1]
        for sub in sec2.children:
            assert sub.attr("level") == 2


# ── 명단 ─────────────────────────────────────────────────────────────────────

class TestNameLists:
    def test_section1_has_one_list(self, tree):
        sec1 = tree.root.children[0]
        lists = [n for n in sec1.children if n.node_type == NodeType.LIST]
        assert len(lists) == 1

    def test_section1_names_across_lines(self, tree):
        sec1 = tree.root.children[0]
        lst = next(n for n in sec1.children if n.node_type == NodeType.LIST)
        names = [item.content for item in lst.children]
        assert names == ["홍길동", "홍길순", "홍길영", "홍길준", "홍길호", "홍길윤"]

    def test_section1_no_category(self, tree):
        sec1 = tree.root.children[0]
        lst = next(n for n in sec1.children if n.node_type == NodeType.LIST)
        assert lst.attr("category") is None

    def test_subsec_21_category(self, tree):
        sub21 = tree.root.children[1].children[0]
        lst = next(n for n in sub21.children if n.node_type == NodeType.LIST)
        assert lst.attr("category") == "건강"

    def test_subsec_21_names(self, tree):
        sub21 = tree.root.children[1].children[0]
        lst = next(n for n in sub21.children if n.node_type == NodeType.LIST)
        names = [item.content for item in lst.children]
        assert names == ["홍길찬", "홍길만"]

    def test_subsec_22_category(self, tree):
        sub22 = tree.root.children[1].children[1]
        lst = next(n for n in sub22.children if n.node_type == NodeType.LIST)
        assert lst.attr("category") == "직장"

    def test_subsec_22_names(self, tree):
        sub22 = tree.root.children[1].children[1]
        lst = next(n for n in sub22.children if n.node_type == NodeType.LIST)
        names = [item.content for item in lst.children]
        assert names == ["홍길주"]

    def test_all_list_items_are_leaf(self, tree):
        for item in tree.find(NodeType.LIST_ITEM):
            assert item.is_leaf


# ── 전체 통계 ─────────────────────────────────────────────────────────────────

class TestStats:
    def test_total_names(self, tree):
        assert len(tree.find(NodeType.LIST_ITEM)) == 9

    def test_total_lists(self, tree):
        assert len(tree.find(NodeType.LIST)) == 3

    def test_total_sections(self, tree):
        secs = tree.find(NodeType.SECTION)
        assert len(secs) == 4  # 🔹2 + 🔸2


# ── 엣지 케이스 ───────────────────────────────────────────────────────────────

class TestEdgeCases:
    def test_empty_string(self):
        tree = EmojiMarkupParser().parse("")
        assert tree.root.attr("title") is None
        assert len(tree.root.children) == 0

    def test_title_only(self):
        tree = EmojiMarkupParser().parse("✅제목만")
        assert tree.root.attr("title") == "제목만"
        assert len(tree.root.children) == 0

    def test_multiple_categories_in_section(self):
        text = "🔹항목\n(A) 홍길동\n\n(B) 홍길순\n"
        tree = EmojiMarkupParser().parse(text)
        sec = tree.root.children[0]
        lists = [n for n in sec.children if n.node_type == NodeType.LIST]
        assert len(lists) == 2
        assert lists[0].attr("category") == "A"
        assert lists[1].attr("category") == "B"

    def test_names_without_section(self):
        tree = EmojiMarkupParser().parse("홍길동 홍길순\n홍길영\n")
        lst = tree.find(NodeType.LIST)
        assert len(lst) == 1
        assert len(lst[0].children) == 3

    def test_category_names_on_separate_line(self):
        # 카테고리 줄 다음에 이름이 없고 다음 줄에 이름이 있는 경우
        text = "🔹항목\n(건강)\n홍길동 홍길순\n"
        tree = EmojiMarkupParser().parse(text)
        sec = tree.root.children[0]
        lst = next(n for n in sec.children if n.node_type == NodeType.LIST)
        assert lst.attr("category") == "건강"
        assert len(lst.children) == 2