#!/usr/bin/env python3
"""Does the whole suite hold together at 390px? — C2, T9.6.

Nothing in the original proposal touched mobile, and it is where the worst
rendering was found. This drives all seven pages at 390px (mobile emulation,
so the media queries under test actually fire) and asserts:

  - no page scrolls sideways
  - no visible control is clipped past the viewport or collapsed to nothing
  - every control meets the 24px WCAG floor; on the gloved-hands surfaces
    (Field View, and the creator's rail / status / save controls) the bar is
    44px, which is what the shared coarse-pointer sizing in wp-chrome.css
    delivers

The after-screenshots live in docs/reference/baseline/after-wave9 (captured by
baseline_shots.py) beside the wave 0 set.

Exit 0 all passed, 1 a failure, 2 could not run.
"""
import json
import os
import re
import sys
import tempfile
import time

sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))

import cdp                                                           # noqa: E402
from browser_check import seed, start_server, chk, _PASS, _FAIL      # noqa: E402
from sections_check import set_sop                                   # noqa: E402
from stepper_check import dismiss_dialogs                            # noqa: E402

ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

PAGES = [
    ("login",    "/login.html"),
    ("launcher", "/index.html"),
    ("wizard",   "/work-package-suite.html?tab=sop&project=projA"),
    ("creator",  "/wp-creation-index.html?project=projA"),
    ("field",    "/field.html?project=projA"),
    ("admin",    "/admin.html"),
    ("users",    "/users.html"),
]

MEASURE = """(function(){
  var out = {sw: document.documentElement.scrollWidth, total:0, under24:[],
             clipped:[]};
  function skip(el){
    // An off-canvas drawer is PARKED outside the viewport by design, and a row
    // inside an overflow-x container is scrollable, not clipped - the same two
    // lessons frame_check's widest-box scan learned the hard way.
    for (var n = el; n; n = n.parentElement){
      var cs = getComputedStyle(n);
      if (cs.overflowX === 'auto' || cs.overflowX === 'scroll') return true;
      if (cs.position === 'fixed' && cs.transform && cs.transform !== 'none') return true;
      if (n.getAttribute && n.getAttribute('aria-hidden') === 'true') return true;
    }
    return false;
  }
  var els = document.querySelectorAll('button, a[href], input, select, textarea, [role=button]');
  for (var i=0;i<els.length;i++){
    var el=els[i]; var r=el.getBoundingClientRect();
    if (r.width===0 || r.height===0 || el.disabled || el.type==='hidden') continue;
    if (skip(el)) continue;
    out.total++;
    var inlineText = el.tagName==='A' && getComputedStyle(el).display==='inline';
    var m=Math.min(r.width,r.height);
    var id=el.tagName+'.'+String(el.className).slice(0,24)+' '+Math.round(r.width)+'x'+Math.round(r.height);
    if (m < 24 && !inlineText && out.under24.length < 6) out.under24.push(id);
    if ((r.left < -2 || r.right > 392) && out.clipped.length < 6) out.clipped.push(id);
  }
  return JSON.stringify(out);
})()"""

FIELD44 = """(function(){
  var out = {total:0, under:[]};
  function skip(el){
    for (var n = el; n; n = n.parentElement){
      var cs = getComputedStyle(n);
      if (cs.position === 'fixed' && cs.transform && cs.transform !== 'none') return true;
      if (n.getAttribute && n.getAttribute('aria-hidden') === 'true') return true;
    }
    return false;
  }
  var els = document.querySelectorAll(
    'button, a[href], input:not([type=checkbox]):not([type=radio]), select, textarea');
  for (var i=0;i<els.length;i++){
    var el=els[i]; var r=el.getBoundingClientRect();
    if (r.width===0 || r.height===0 || el.disabled) continue;
    if (skip(el)) continue;
    out.total++;
    if (Math.min(r.width, r.height) < 44 && out.under.length < 6)
      out.under.push(el.tagName+'.'+String(el.className).slice(0,24)+' '
                     +Math.round(r.width)+'x'+Math.round(r.height));
  }
  return JSON.stringify(out);
})()"""


def ascii_(v, n=280):
    return re.sub(r"\s+", " ", str(v)).encode("ascii", "replace").decode()[:n]


def main():
    exe = cdp.find_browser()
    if not exe:
        print("no headless-capable browser found; set WP_BROWSER.")
        return 2

    shots = os.path.join(ROOT, "docs", "reference", "baseline", "after-wave9")
    chk("the after-screenshots are committed beside the wave 0 baseline",
        os.path.isdir(shots) and len([f for f in os.listdir(shots)
                                      if f.endswith("-390.png")]) >= 7,
        shots)

    tmpdir = tempfile.mkdtemp(prefix="wpsuite-mobile-")
    db_path = os.path.join(tmpdir, "check.db")
    server = None
    browser = None
    try:
        tok = seed(db_path)
        set_sop(db_path, {})
        port = cdp.free_port()
        base = "http://127.0.0.1:%d" % port
        server = start_server(port, db_path)

        browser = cdp.Browser(exe)
        page = browser.page()
        page.clear_cookies()
        page.set_cookie("wp_session", tok["root"])
        page.viewport(390, 844, mobile=True)

        for name, path in PAGES:
            print("\n%s" % name)
            page.goto(base + path)
            dismiss_dialogs(page)
            time.sleep(2.4)
            m = json.loads(page.eval(MEASURE))
            chk("%s: no sideways scrolling" % name, m["sw"] <= 392, m["sw"])
            chk("%s: no control clipped past the viewport" % name,
                not m["clipped"], ascii_(m["clipped"]))
            chk("%s: every control meets the 24px floor" % name,
                not m["under24"], ascii_(m["under24"]))

        # the gloved-hands bar: Field View, everything 44px
        print("\nfield view, the 44px bar")
        page.goto(base + "/field.html?project=projA")
        dismiss_dialogs(page)
        time.sleep(2.4)
        f = json.loads(page.eval(FIELD44))
        chk("field view: every control is a 44px touch target",
            f["total"] > 0 and not f["under"], ascii_(f))

        js_errors = [e for e in page.js_errors() if "beforeunload" not in e]
        chk("no JavaScript errors across the whole sweep", not js_errors,
            ascii_(js_errors[:2]))

    finally:
        if browser is not None:
            try:
                browser.close()
            except Exception:
                pass
        if server is not None:
            try:
                server.terminate()
            except Exception:
                pass

    print("\n" + "-" * 54)
    print("%d/%d checks passed." % (len(_PASS), len(_PASS) + len(_FAIL)))
    for f in _FAIL:
        print("  - " + f)
    return 1 if _FAIL else 0


if __name__ == "__main__":
    sys.exit(main())