"""Tests for the SES indent writer and identifier quoting."""

from __future__ import annotations

from freeroute.ses.indent import Identifier, IndentWriter


def test_nested_scopes_indent_by_two_spaces():
    out = IndentWriter()
    out.start_scope(new_line=False)
    out.write("session x")
    out.start_scope()
    out.write("routes")
    out.end_scope()
    out.end_scope()
    assert out.getvalue() == "(session x\n  (routes\n  )\n)"


def test_new_line_uses_current_indent():
    out = IndentWriter()
    out.start_scope(new_line=False)
    out.write("a")
    out.new_line()
    out.write("(b)")
    out.end_scope()
    assert out.getvalue() == "(a\n  (b)\n)"


def test_plain_name_not_quoted():
    ident = Identifier()
    assert ident.format("Top") == "Top"
    assert ident.format("U1") == "U1"
    assert ident.format("F.Cu") == "F.Cu"  # '.' is not reserved


def test_reserved_chars_force_quotes():
    ident = Identifier()
    assert ident.format("NET_A") == '"NET_A"'  # underscore reserved
    assert ident.format("a-b") == '"a-b"'  # hyphen reserved
    assert ident.format("with space") == '"with space"'
    assert ident.format("Via[0-1]_600:300_um") == '"Via[0-1]_600:300_um"'


def test_leading_digit_forces_quotes():
    ident = Identifier()
    assert ident.format("2layer") == '"2layer"'
    assert ident.format("-3x") == '"-3x"'


def test_non_ascii_forces_quotes():
    ident = Identifier()
    assert ident.format("Паяльная") == '"Паяльная"'


def test_surrounding_quotes_stripped_before_reprocessing():
    ident = Identifier()
    # already-quoted plain name comes back unquoted
    assert ident.format('"Top"') == "Top"


def test_embedded_quote_removed():
    ident = Identifier()
    assert ident.format('a"b') == "ab"