import json
import struct
import subprocess
import zipfile

import pytest

from test_est_native_export import ROOT, fixture


def inspect(path):
    script = """const fs=require('fs'),m=require('./tools/est-test/inspect-accom.cjs');
      try { process.stdout.write(JSON.stringify(m.inspectAccom(fs.readFileSync(process.argv[1])))); }
      catch(e) { process.stdout.write(JSON.stringify({error:e.message})); }"""
    return json.loads(subprocess.check_output(["node", "-e", script, str(path)], cwd=ROOT))


def test_accom_reads_synthetic_table_and_rejects_missing_or_bad_signature(tmp_path):
    base = tmp_path / "base.estx"
    fixture(base)
    with zipfile.ZipFile(base) as archive:
        data = bytearray(archive.read("EstMainDat.dat"))
    # Fixture GU is a double field; rename it to the observed Accom quantity field.
    offset = 512 + 768 * 4
    data[offset + 2] = len("TotalGN")
    data[offset + 3 : offset + 3 + len("TotalGN")] = b"TotalGN"
    path = tmp_path / "accom.estx"
    with zipfile.ZipFile(path, "w") as archive:
        archive.writestr("AccomMainTable.Dat", data)
    result = inspect(path)
    assert result["rows"][0]["Code"] == "A"
    assert result["rows"][0]["TotalGN"] == 100
    assert "TotalGN" in result["fields"]
    script = """const fs=require('fs'),{server}=require('./tools/est-test/server.cjs');
      server.listen(0,'127.0.0.1',async()=>{try{
        const r=await fetch(`http://127.0.0.1:${server.address().port}/api/inspect-accom`,
          {method:'POST',body:fs.readFileSync(process.argv[1])});
        const p=await r.json();process.stdout.write(JSON.stringify({status:r.status,rows:p.rows}));
      }finally{server.close()}});"""
    api = json.loads(subprocess.check_output(["node", "-e", script, str(path)], cwd=ROOT))
    assert api["status"] == 200
    assert api["rows"][0]["TotalGN"] == 100
    assert "없습니다" in inspect(base)["error"]
    data[24] ^= 1
    with zipfile.ZipFile(path, "w") as archive:
        archive.writestr("AccomMainTable.Dat", data)
    assert "서명" in inspect(path)["error"]


def test_accom_view_reads_file_without_changing_project(tmp_path):
    playwright = pytest.importorskip("playwright.sync_api")
    base = tmp_path / "base.estx"
    fixture(base)
    with zipfile.ZipFile(base) as archive:
        data = bytearray(archive.read("EstMainDat.dat"))
    offset = 512 + 768 * 4
    data[offset + 2] = len("TotalGN")
    data[offset + 3 : offset + 3 + len("TotalGN")] = b"TotalGN"
    stride = struct.unpack_from("<H", data, 45)[0]
    data.extend(data[-stride:] * 200)
    struct.pack_into("<I", data, 41, 201)
    path = tmp_path / "accom.estx"
    with zipfile.ZipFile(path, "w") as archive:
        archive.writestr("AccomMainTable.Dat", data)
    with playwright.sync_playwright() as p:
        browser = p.chromium.launch(channel="msedge", headless=True)
        page = browser.new_page()
        try:
            page.goto("http://100.65.141.15:5175", timeout=5000)
        except Exception:
            browser.close()
            pytest.skip("EST test server unavailable")
        page.wait_for_function("() => Boolean(EstApp.state.project)")
        page.evaluate("EstApp.state.view='progress'; EstApp.render()")
        before = page.evaluate("JSON.stringify(EstApp.state.project)")
        page.locator("[data-accom-inspect]").set_input_files(str(path))
        page.locator("#dialog-content").get_by_text("TotalGN").wait_for(timeout=5000)
        assert page.locator("#dialog-content").get_by_text("100", exact=True).count() == 200
        page.locator('[data-accom-page="1"]').click()
        assert page.locator("#dialog-content").get_by_text("100", exact=True).count() == 1
        assert page.evaluate("JSON.stringify(EstApp.state.project)") == before
        page.evaluate("""() => {
          document.getElementById('dialog').close();
          const original=window.fetch;
          window.fetch=(url,options)=>url==='/api/inspect-accom'
            ? new Promise(resolve=>window.releaseAccom=()=>resolve(original(url,options)))
            : original(url,options);
        }""")
        page.locator("[data-accom-inspect]").set_input_files(str(path))
        page.wait_for_function("() => typeof window.releaseAccom === 'function'")
        page.evaluate("EstApp.showDialog('편집 중', '<input id=keep-value value=보존>')")
        with page.expect_event("dialog") as dialog_event:
            page.evaluate("window.releaseAccom()")
        dialog_event.value.accept()
        assert page.locator("#dialog-title").inner_text() == "편집 중"
        assert page.locator("#keep-value").input_value() == "보존"
        browser.close()