from app.utils.pinyin_abbr import (
    build_name_pinyin_abbr,
    normalize_name_pinyin_abbr,
    resolve_name_pinyin_abbr,
)


def test_empty_and_whitespace():
    assert build_name_pinyin_abbr("") == ""
    assert build_name_pinyin_abbr("   ") == ""
    assert normalize_name_pinyin_abbr(None) == ""
    assert normalize_name_pinyin_abbr("  AbC  ") == "abc"


def test_chinese_and_alnum():
    # pypinyin FIRST_LETTER: 工g业y硫l酸s（非设计稿中的 gylls）
    assert build_name_pinyin_abbr("55% 工业硫酸") == "55gyls"
    # pypinyin: 苯b骈p三s氮d唑z + BTA（非设计稿中的 bstnzbta）
    assert build_name_pinyin_abbr("苯骈三氮唑BTA") == "bpsdzbta"
    assert build_name_pinyin_abbr("PAC") == "pac"


def test_truncate_to_100():
    long_name = "测" * 120
    out = build_name_pinyin_abbr(long_name)
    assert len(out) == 100


def test_resolve_submitted_provided_nonempty():
    assert (
        resolve_name_pinyin_abbr(
            name="工业硫酸",
            submitted="  CustomAbbr  ",
            existing="old",
            submitted_provided=True,
        )
        == "customabbr"
    )


def test_resolve_submitted_provided_empty_generates():
    assert (
        resolve_name_pinyin_abbr(
            name="PAC",
            submitted="  ",
            existing="old",
            submitted_provided=True,
        )
        == "pac"
    )


def test_resolve_not_submitted_keeps_existing():
    assert (
        resolve_name_pinyin_abbr(
            name="工业硫酸",
            submitted=None,
            existing="  KeepMe  ",
            submitted_provided=False,
        )
        == "keepme"
    )


def test_resolve_not_submitted_empty_existing_generates():
    assert (
        resolve_name_pinyin_abbr(
            name="PAC",
            submitted=None,
            existing="",
            submitted_provided=False,
        )
        == "pac"
    )