"""EST 테스트 앱 찾기 창: 다음찾기 순서·호표 위치·산출근거 문구."""

import json
import subprocess
from pathlib import Path

ROOT = Path(__file__).resolve().parents[2]
FILES = [
    "native-math.js",
    "native-formula.js",
    "native-machine.js",
    "native-rows.js",
    "native-text.js",
    "native-quantity.cjs",
    "native-wonga.js",
    "native-engine.js",
    "native-find.js",
]


def run_js(code: str):
    runner = f"""
    const fs = require('fs'), vm = require('vm');
    const ctx = vm.createContext({{ structuredClone, console }});
    for (const f of {json.dumps(FILES)})
      vm.runInContext(fs.readFileSync('tools/est-test/' + f, 'utf8'), ctx, {{ filename: f }});
    ctx.project = JSON.parse(fs.readFileSync('tools/est-test/sample.json', 'utf8'));
    process.stdout.write(JSON.stringify(vm.runInContext({json.dumps(code)}, ctx)));
    """
    out = subprocess.check_output(["node", "-e", runner], cwd=ROOT)
    return json.loads(out.decode("utf-8"))


def test_next_walks_matches_in_order_and_stops_at_end():
    result = run_js("""(() => {
      const rows = [{Name:'터파기'},{Name:'되메우기'},{Name:'잔토 터파기',Size:'백호'},{Name:'포장'}];
      const first = EstFind.next(rows, '터파기', 0);
      const second = EstFind.next(rows, '터파기', first + 1);
      const end = EstFind.next(rows, '터파기', second + 1);
      const spec = EstFind.next(rows, '백호', 0);
      const loose = EstFind.next(rows, '  잔토  ', 0);
      let empty = '';
      try { EstFind.next(rows, '  ', 0); } catch (e) { empty = e.message; }
      return {first, second, end, spec, loose, empty};
    })()""")
    assert result == {
        "first": 0,
        "second": 2,
        "end": -1,
        "spec": 2,
        "loose": 2,
        "empty": "검색어를 입력하세요.",
    }


def test_search_reads_cost_line_text_and_skips_previous_values():
    result = run_js("""(() => {
      const rows = [
        {LineData:'\\x0e콘크리트\\x0e \\x13타설\\x13', Name_:'옛이름'},
        {Name:'다른 행'}
      ];
      return {
        line: EstFind.next(rows, '타설', 0),
        old: EstFind.next(rows, '옛이름', 0)
      };
    })()""")
    assert result == {"line": 0, "old": -1}


def test_group_position_for_head_rows():
    result = run_js("""(() => {
      const rows = project.tables.HeadMainDat;
      const titles = rows.map((r, i) => [i, r]).filter(([, r]) => Number(r.Index) > 0);
      const [start, title] = titles[1];
      const hit = EstFind.groupOf(rows, start + 1);
      return {code: hit.code === title.Code, position: hit.position};
    })()""")
    assert result == {"code": True, "position": 1}