"""
Prompt Refactor Plus — вкладка для A1111 (Stable Diffusion WebUI).

Почему раньше таб не показывался:
- Нельзя вызывать gradio.launch() внутри скрипта расширения.
- Скрипт должен регистрировать вкладку через script_callbacks.on_ui_tabs.
- В A1111 падает dataclasses со строковыми аннотациями, поэтому НЕ используем
  `from __future__ import annotations`.

Что сделано:
- Перенос в on_ui_tabs() + регистрация callback.
- Безопасная загрузка внешнего парсера из PROMPT_PARSER_PATH. Ошибка не ломает UI.
- Базовые параметры в явном виде. Остальные спрятаны в «Advanced».
- Анализ промпта, QuickFix, Wrap Wizard, Timeline Wizard, Token Counter.
- Дополнения: Curve Editor, Prob-Alternate Wizard, Test Generator — в Advanced.
- Кнопка Reload parser для горячей подгрузки парсера после правки файла.

Совместимость:
- Python 3.10.x (как в A1111).
- Gradio 3.x, поставляемый с WebUI.
- Внешние пакеты (transformers/open_clip) опциональны: есть «approx» fallback.

Файл предназначен для пути: extensions/<your-ext>/scripts/prompt-refactor.py
"""

import os
import re
import csv
import json
import math
import importlib
import importlib.util
import importlib.machinery
from dataclasses import dataclass
from typing import List, Tuple, Optional, Any, Dict

# A1111 hooks
try:
    from modules import script_callbacks
except Exception as _e:
    script_callbacks = None  # позволит локально запускать как обычный модуль

# ---------------------------------------------------------
# Конфиг: путь до внешнего парсера
# ---------------------------------------------------------
PROMPT_PARSER_PATH = os.environ.get("PROMPT_PARSER_PATH", "/content/A1111/modules/prompt_parser.py")
PP_MOD_NAME = "pp_prompt_parser"
_pp = None
_pp_error = ""

def import_from_path(mod_name: str, path: str):
    loader = importlib.machinery.SourceFileLoader(mod_name, path)
    spec = importlib.util.spec_from_loader(loader.name, loader)
    mod = importlib.util.module_from_spec(spec)
    loader.exec_module(mod)
    return mod

def load_parser_safely() -> Tuple[Optional[Any], str]:
    """Возвращает (модуль_парсера|None, сообщение_ошибки|'' )."""
    if not os.path.isfile(PROMPT_PARSER_PATH):
        return None, f"Parser file not found: {PROMPT_PARSER_PATH}"
    try:
        # удалить из sys.modules, чтобы форсировать перезагрузку
        import sys as _sys
        if PP_MOD_NAME in _sys.modules:
            del _sys.modules[PP_MOD_NAME]
        mod = import_from_path(PP_MOD_NAME, PROMPT_PARSER_PATH)
        # быстрая проверка API
        _ = getattr(mod, "schedule_parser")
        _ = getattr(mod, "resolve_tree")
        return mod, ""
    except Exception as e:
        return None, f"{type(e).__name__}: {e}"

# загрузим один раз при импорте, но не падаем при ошибке
_pp, _pp_error = load_parser_safely()

# ---------------------------------------------------------
# ENV и горячая перезагрузка
# ---------------------------------------------------------
class EnvState:
    def __init__(self):
        self.allow_empty_alt = os.environ.get("ALLOW_EMPTY_ALTERNATE", "0")
        self.expand_alt_per_step = os.environ.get("EXPAND_ALTERNATE_PER_STEP", "1")
        self.group_combo_limit = os.environ.get("GROUP_COMBO_LIMIT", "100")
        self.suppress_standalone_colon = os.environ.get("SUPPRESS_STANDALONE_COLON", "1")

    def apply(self, allow_empty_alt: bool, expand_alt: bool, combo_limit: int, suppress_colon: bool) -> bool:
        changed = False
        new_allow = "1" if allow_empty_alt else "0"
        new_expand = "1" if expand_alt else "0"
        new_limit = str(int(combo_limit))
        new_suppress = "1" if suppress_colon else "0"

        if new_allow != self.allow_empty_alt:
            os.environ["ALLOW_EMPTY_ALTERNATE"] = new_allow
            self.allow_empty_alt = new_allow
            changed = True
        if new_expand != self.expand_alt_per_step:
            os.environ["EXPAND_ALTERNATE_PER_STEP"] = new_expand
            self.expand_alt_per_step = new_expand
            changed = True
        if new_limit != self.group_combo_limit:
            os.environ["GROUP_COMBO_LIMIT"] = new_limit
            self.group_combo_limit = new_limit
            changed = True
        if new_suppress != self.suppress_standalone_colon:
            os.environ["SUPPRESS_STANDALONE_COLON"] = new_suppress
            self.suppress_standalone_colon = new_suppress
            changed = True
        return changed

ENV_STATE = EnvState()

def reload_parser_after_env(allow_empty_alt: bool, expand_alt: bool, combo_limit: int, suppress_colon: bool):
    """Применяет ENV и перезагружает парсер при изменении."""
    global _pp, _pp_error
    if ENV_STATE.apply(allow_empty_alt, expand_alt, combo_limit, suppress_colon):
        _pp, _pp_error = load_parser_safely()

def reload_parser_manual() -> str:
    """Ручная перезагрузка парсера кнопкой."""
    global _pp, _pp_error
    _pp, _pp_error = load_parser_safely()
    return _pp_error or "OK"

# ---------------------------------------------------------
# Препроцессор: repeat и prob-alternates
# ---------------------------------------------------------
def _scan_balanced_parens(s: str, start_idx: int) -> Optional[Tuple[int, str]]:
    if start_idx >= len(s) or s[start_idx] != '(':
        return None
    depth = 0
    i = start_idx
    buf: List[str] = []
    while i < len(s):
        ch = s[i]
        if ch == '(':
            depth += 1
            if depth > 1: buf.append(ch)
        elif ch == ')':
            depth -= 1
            if depth == 0: return i + 1, "".join(buf)
            else: buf.append(ch)
        else:
            buf.append(ch)
        i += 1
    return None

def _pp_repeat_macro(src: str) -> Tuple[str, List[str]]:
    changes: List[str] = []
    i = 0
    out: List[str] = []
    rx = re.compile(r"\brepeat\s+(\d+)\s*\(", re.IGNORECASE)
    while i < len(src):
        m = rx.search(src, i)
        if not m:
            out.append(src[i:]); break
        out.append(src[i:m.start()])
        n = max(1, int(m.group(1)))
        open_idx = m.end() - 1
        scanned = _scan_balanced_parens(src, open_idx)
        if not scanned:
            out.append(src[m.start():m.end()]); i = m.end(); continue
        end_idx, inner = scanned
        body = inner.strip()
        out.append(", ".join([body] * n))
        changes.append(f"repeat {n} (...) → {n} повторов")
        i = end_idx
    return "".join(out), changes

def _split_top_level_bar(block: str) -> List[str]:
    parts: List[str] = []; buf: List[str] = []
    d_round = d_square = d_curly = 0; i = 0
    while i < len(block):
        ch = block[i]
        if ch == '\\':
            if i + 1 < len(block): buf.append(block[i:i+2]); i += 2; continue
        if ch == '(': d_round += 1
        elif ch == ')': d_round = max(0, d_round - 1)
        elif ch == '[': d_square += 1
        elif ch == ']': d_square = max(0, d_square - 1)
        elif ch == '{': d_curly += 1
        elif ch == '}': d_curly = max(0, d_curly - 1)
        elif ch == '|' and d_round == d_square == d_curly == 0:
            parts.append("".join(buf)); buf = []; i += 1; continue
        buf.append(ch); i += 1
    parts.append("".join(buf))
    return [p.strip() for p in parts]

def _pp_prob_alt(src: str, total_steps: int) -> Tuple[str, List[str]]:
    changes: List[str] = []
    token_rx = re.compile(r"((?:[^\n\[\]]+?\{\s*\d*\.?\d+\s*\}\s*\|\s*)+[^\n\[\]]+?\{\s*\d*\.?\d+\s*\})")
    def convert_block(block: str) -> str:
        parts = _split_top_level_bar(block)
        items: List[Tuple[str, float]] = []; total = 0.0
        for p in parts:
            m = re.search(r"\{\s*([+\-]?\d*\.?\d+(?:[eE][+\-]?\d+)?)\s*\}\s*$", p)
            if not m: return block
            w = float(m.group(1))
            text = re.sub(r"\{\s*[+\-]?\d*\.?\d+(?:[eE][+\-]?\d+)?\s*\}\s*$", "", p).strip()
            items.append((text, w)); total += w
        if total <= 0: return block
        boundaries: List[str] = []; acc = 0.0
        for i in range(len(items) - 1):
            acc += items[i][1] / total
            b = int(round(acc * total_steps))
            if 0 < b < total_steps: boundaries.append(str(b))
        core = " : ".join([t for t, _ in items])
        extra = f" : {', '.join(boundaries)}" if boundaries else ""
        return f"[ {core} ]{extra}"
    def repl(m):
        orig = m.group(1)
        out = convert_block(orig)
        if out != orig: changes.append("prob a{p}|b{q} → scheduled")
        return out
    return token_rx.sub(repl, src), changes

def preprocess(text: str, total_steps: int = 20) -> Tuple[str, List[str]]:
    out1, ch1 = _pp_repeat_macro(text)
    out2, ch2 = _pp_prob_alt(out1, total_steps)
    return out2, ch1 + ch2

# ---------------------------------------------------------
# Аналитика
# ---------------------------------------------------------
@dataclass
class AnalysisResult:
    ok: bool
    error: Optional[str]
    parse_tree: Optional[Any]
    resolved_text: Optional[str]
    schedule: Optional[List[Tuple[int, str]]]
    timeline: Optional[List[Tuple[int, str]]]
    changes: List[str]

def analyze_prompt(
    text: str,
    steps: int = 20,
    use_preprocessor: bool = True,
    visitor_mode: bool = True,
    seed: Optional[int] = None,
    allow_empty_alt: bool = False,
    expand_alt_per_step: bool = True,
    group_combo_limit: int = 100,
    suppress_standalone_colon: bool = True,
) -> AnalysisResult:
    if _pp is None:
        return AnalysisResult(False, f"Parser not loaded: {_pp_error}", None, None, None, None, [])
    reload_parser_after_env(allow_empty_alt, expand_alt_per_step, group_combo_limit, suppress_standalone_colon)

    changes: List[str] = []
    src = text
    if use_preprocessor:
        src, ch = preprocess(src, steps)
        changes.extend(ch)

    try:
        tree = _pp.schedule_parser.parse(src)
    except Exception as e:
        return AnalysisResult(False, f"{e}", None, None, None, None, changes)

    try:
        resolved = _pp.resolve_tree(tree, keep_spacing=True)
    except Exception as e:
        return AnalysisResult(False, f"Resolve error: {e}", tree, None, None, None, changes)

    try:
        if visitor_mode:
            collector = _pp.CollectSteps(steps, prefix="", suffix="", depth=0, use_scheduling=True, seed=seed)
            schedules = collector.visit(tree) or []
        else:
            schedules = []
            for step in range(1, steps + 1):
                transformer = _pp.ScheduleTransformer(total_steps=steps, current_step=step, seed=seed)
                txt = transformer.transform(tree)
                schedules.append((step, txt))
            schedules = [[b, t] for (b, t) in schedules]
    except Exception as e:
        return AnalysisResult(False, f"Schedule error: {e}", tree, resolved, None, None, changes)

    try:
        norm: List[Tuple[int, str]] = []
        for item in schedules:
            if isinstance(item, (list, tuple)) and len(item) == 2:
                b, t = int(item[0]), str(item[1]); norm.append((b, t))
        norm.sort(key=lambda x: x[0])
        timeline: List[Tuple[int, str]] = []
        idx = 0; cur = norm[0][1] if norm else ""
        for step in range(1, steps + 1):
            while idx < len(norm) and step > norm[idx][0]:
                cur = norm[idx][1]; idx += 1
            timeline.append((step, cur))
    except Exception as e:
        return AnalysisResult(False, f"Timeline error: {e}", tree, resolved, [(int(b), str(t)) for b, t in schedules], None, changes)

    return AnalysisResult(True, None, tree, resolved, [(int(b), str(t)) for b, t in schedules], timeline, changes)

def schedule_to_csv(schedule: List[Tuple[int, str]]) -> str:
    from io import StringIO
    buf = StringIO(); w = csv.writer(buf)
    w.writerow(["boundary", "text"])
    for b, t in schedule: w.writerow([b, t])
    return buf.getvalue()

def timeline_to_csv(timeline: List[Tuple[int, str]]) -> str:
    from io import StringIO
    buf = StringIO(); w = csv.writer(buf)
    w.writerow(["step", "text"])
    for s, t in timeline: w.writerow([s, t])
    return buf.getvalue()

# ---------------------------------------------------------
# QuickFix
# ---------------------------------------------------------
def _close_unbalanced_brackets(src: str) -> str:
    opens = {'(': 0, '[': 0, '{': 0}
    for ch in src:
        if ch in opens: opens[ch] += 1
        elif ch == ')': opens['('] = max(0, opens['('] - 1)
        elif ch == ']': opens['['] = max(0, opens['['] - 1)
        elif ch == '}': opens['{'] = max(0, opens['{'] - 1)
    return src + (')' * opens['(']) + (']' * opens['[']) + ('}' * opens['{'])

def _escape_bars_inside_parens(src: str) -> str:
    out: List[str] = []; depth = 0; i = 0
    while i < len(src):
        ch = src[i]
        if ch == '\\' and i + 1 < len(src):
            out.append(src[i:i+2]); i += 2; continue
        if ch == '(':
            depth += 1; out.append(ch)
        elif ch == ')':
            depth = max(0, depth - 1); out.append(ch)
        elif ch == '|' and depth > 0:
            out.append(r'\|')
        else:
            out.append(ch)
        i += 1
    return "".join(out)

def _replace_single_colon_labels_outside_schedules(src: str) -> str:
    segments: List[Tuple[bool, str]] = []; inside = 0; buf: List[str] = []
    for ch in src:
        if ch == '[':
            if buf: segments.append((False, "".join(buf))); buf = []
            inside += 1; segments.append((True, ch))
        elif ch == ']':
            segments.append((True, ch)); inside = max(0, inside - 1)
        else:
            if inside: segments.append((True, ch))
            else: buf.append(ch)
    if buf: segments.append((False, "".join(buf)))

    def repl(text: str) -> str:
        pattern = re.compile(r'(?<!:)\b([A-Za-z0-9_]+)\s*:\s*(?!:)\b([A-Za-z0-9_]+)\b')
        return pattern.sub(r'\1::\2', text)

    out: List[str] = []
    for inside_sq, chunk in segments:
        out.append(chunk if inside_sq else repl(chunk))
    return "".join(out)

def quickfix_suggestions(src: str) -> List[Dict[str, str]]:
    sgs: List[Dict[str, str]] = []
    if any(src.count(o) > src.count(c) for o, c in [('(', ')'), ('[', ']'), ('{', '}')]):
        sgs.append({"id": "close_brackets", "title": "Закрыть незакрытые скобки"})
    if '|' in src:
        sgs.append({"id": "escape_bars_in_parens", "title": "Экранировать | внутри (...)"})
    if os.environ.get("SUPPRESS_STANDALONE_COLON", "1") == "1":
        sgs.append({"id": "labels_double_colon", "title": "word:word → word::word вне [..]"})
    sgs.append({"id": "normalize_ws", "title": "Нормализовать пробелы"})
    return sgs

def apply_quickfix(src: str, fix_id: str) -> str:
    if fix_id == "close_brackets": return _close_unbalanced_brackets(src)
    if fix_id == "escape_bars_in_parens": return _escape_bars_inside_parens(src)
    if fix_id == "labels_double_colon": return _replace_single_colon_labels_outside_schedules(src)
    if fix_id == "normalize_ws":
        s = src.replace('\r\n', '\n').replace('\r', '\n')
        s = re.sub(r'[ \t]+', ' ', s); s = re.sub(r' *\n *', ' ', s); s = re.sub(r' {2,}', ' ', s)
        return s.strip()
    return src

# ---------------------------------------------------------
# Wraps / Builders
# ---------------------------------------------------------
PALETTE_TEMPLATES: Dict[str, str] = {
    "Emphasis (1.2)": "(text:1.2)",
    "Emphasis range": "(text:start:end)",
    "Square schedule": "[ a : b ] : 20",
    "Triple schedule": "[ a : b : c ] : 20, 40",
    "Alternate": "a | b",
    "Prob alternate": "a{0.5} | b{0.5}",
    "Group label": "owner::label::description",
    "AND": "AND( term1, term2 )",
    "BREAK": "BREAK",
}

def palette_insert(cur_prompt: str, key: str) -> str:
    tpl = PALETTE_TEMPLATES.get(key, "")
    sep = "" if (not cur_prompt or cur_prompt.endswith((" ", "\n", ","))) else ", "
    return (cur_prompt or "") + (sep + tpl)

def _split_top_level_comma(block: str) -> List[str]:
    parts: List[str] = []; buf: List[str] = []
    d_round = d_square = d_curly = 0; i = 0
    while i < len(block):
        ch = block[i]
        if ch == '\\' and i + 1 < len(block):
            buf.append(block[i:i+2]); i += 2; continue
        if ch == '(': d_round += 1
        elif ch == ')': d_round = max(0, d_round - 1)
        elif ch == '[': d_square += 1
        elif ch == ']': d_square = max(0, d_square - 1)
        elif ch == '{': d_curly += 1
        elif ch == '}': d_curly = max(0, d_curly - 1)
        elif ch == ',' and d_round == d_square == d_curly == 0:
            parts.append("".join(buf)); buf = []; i += 1; continue
        buf.append(ch); i += 1
    parts.append("".join(buf))
    return [p.strip() for p in parts if p.strip()]

def segments_from_text(src: str, mode: str = "auto") -> List[str]:
    s = (src or "").strip()
    if not s: return []
    if mode == "lines" or ('\n' in s and mode == "auto"):
        return [ln.strip() for ln in s.splitlines() if ln.strip()]
    if mode == "comma":
        return _split_top_level_comma(s)
    return _split_top_level_comma(s)

def wrap_sequence(src: str, seg_mode: str = "auto") -> str:
    return ", ".join(segments_from_text(src, seg_mode))

def wrap_top_level2(src: str, steps: int = 20, boundary: Optional[int] = None, seg_mode: str = "auto") -> str:
    segs = segments_from_text(src, seg_mode)
    if len(segs) < 2: segs = segs + segs
    core = " : ".join(segs[:2])
    b = boundary if boundary is not None else max(1, min(steps - 1, round(steps / 2)))
    return f"[ {core} ] : {b}"

def wrap_top_level3(src: str, steps: int = 30, boundaries: Optional[Tuple[int, int]] = None, seg_mode: str = "auto") -> str:
    segs = segments_from_text(src, seg_mode)
    if len(segs) < 3:
        segs = segs + ([""] * (3 - len(segs)))
        segs = [s or f"seg{i+1}" for i, s in enumerate(segs)]
    core = " : ".join(segs[:3])
    if boundaries is None:
        b1 = max(1, round(steps / 3)); b2 = max(b1 + 1, round(2 * steps / 3))
    else:
        b1, b2 = int(boundaries[0]), int(boundaries[1])
    return f"[ {core} ] : {b1}, {b2}"

def wrap_alternate(src: str, seg_mode: str = "auto") -> str:
    return " | ".join(segments_from_text(src, seg_mode))

def wrap_prob_equal(src: str, weight: float = 1.0, seg_mode: str = "auto") -> str:
    segs = segments_from_text(src, seg_mode)
    if not segs: return ""
    w = f"{float(weight):g}"
    return " | ".join([f"{s}{{{w}}}" for s in segs])

# ---------------------------------------------------------
# Curve Editor / Boundaries
# ---------------------------------------------------------
def _ease_in(t: float, p: float) -> float: return t ** max(1.0, p)
def _ease_out(t: float, p: float) -> float: return 1.0 - (1.0 - t) ** max(1.0, p)
def _ease_in_out(t: float) -> float: return 0.5 * (1 - math.cos(math.pi * t))
def _cosine(t: float) -> float: return (1 - math.cos(math.pi * t)) / 2.0
def _cubic_bezier_y(t: float, x1: float, y1: float, x2: float, y2: float) -> float:
    mt = 1 - t
    return 3 * mt * mt * t * y1 + 3 * mt * t * t * y2 + t**3

def _curve_f(t: float, kind: str, p: float = 2.0, bezier: Optional[Tuple[float,float,float,float]] = None) -> float:
    t = max(0.0, min(1.0, float(t)))
    if kind == "linear": return t
    if kind == "ease-in": return _ease_in(t, p)
    if kind == "ease-out": return _ease_out(t, p)
    if kind == "ease-in-out": return _ease_in_out(t)
    if kind == "cosine": return _cosine(t)
    if kind == "bezier" and bezier:
        x1,y1,x2,y2 = bezier
        return _cubic_bezier_y(t, x1, y1, x2, y2)
    return t

def _inv_curve(u: float, kind: str, steps: int = 60, p: float = 2.0, bezier: Optional[Tuple[float,float,float,float]] = None) -> float:
    lo, hi = 0.0, 1.0
    for _ in range(steps):
        mid = 0.5 * (lo + hi)
        v = _curve_f(mid, kind, p=p, bezier=bezier)
        if v < u: lo = mid
        else: hi = mid
    return 0.5 * (lo + hi)

def curve_boundaries(num_segments: int, total_steps: int, kind: str, p: float = 2.0, bezier: Optional[Tuple[float,float,float,float]] = None) -> List[int]:
    num_segments = max(2, int(num_segments))
    total_steps = max(2, int(total_steps))
    targets = [i / num_segments for i in range(1, num_segments)]
    bounds: List[int] = []
    for u in targets:
        t = _inv_curve(u, kind=kind, p=p, bezier=bezier)
        b = int(round(t * total_steps))
        b = max(1, min(total_steps - 1, b))
        if bounds and b <= bounds[-1]: b = min(total_steps - 1, bounds[-1] + 1)
        bounds.append(b)
    return bounds

def build_curve_schedule(segments_text: str, num_segments: int, total_steps: int, kind: str,
                         p: float = 2.0, bezier: Optional[Tuple[float,float,float,float]] = None) -> Tuple[str, str]:
    segs = [s.strip() for s in (segments_text or "").splitlines() if s.strip()]
    if not segs:
        segs = [f"seg{i+1}" for i in range(num_segments)]
    else:
        if len(segs) < num_segments:
            segs.extend([f"seg{i+1}" for i in range(len(segs), num_segments)])
        elif len(segs) > num_segments:
            segs = segs[:num_segments]
    bounds = curve_boundaries(num_segments, total_steps, kind=kind, p=p, bezier=bezier)
    core = " : ".join(segs)
    csv_bounds = ", ".join(str(b) for b in bounds)
    block = f"[ {core} ]" + (f" : {csv_bounds}" if csv_bounds else "")
    return block, csv_bounds

# ---------------------------------------------------------
# Token Counter (CLIP) — с fallback'ом
# ---------------------------------------------------------
class TokenCountResult:
    def __init__(self, backend: str, total: int, payload: int, limit: int, overflow: int, trimmed_text: str):
        self.backend = backend
        self.total = total
        self.payload = payload
        self.limit = limit
        self.overflow = overflow
        self.trimmed_text = trimmed_text

def _tokenize_transformers(text: str):
    from transformers import AutoTokenizer  # type: ignore
    tok = AutoTokenizer.from_pretrained("openai/clip-vit-large-patch14", use_fast=True)
    enc = tok(text, add_special_tokens=True, return_offsets_mapping=True)
    ids = enc["input_ids"]
    offsets = [(int(a), int(b)) for (a, b) in enc["offset_mapping"]]
    return ids, offsets, "transformers"

def _tokenize_open_clip(text: str):
    import open_clip  # type: ignore
    tokenizer = open_clip.get_tokenizer("ViT-L-14")
    ids = tokenizer(text)
    offs = [(m.start(), m.end()) for m in re.finditer(r"\S+", text)]
    if hasattr(ids, "squeeze"):
        ids = ids.squeeze(0).tolist()
    return list(map(int, ids)), offs, "open_clip"

def _tokenize_approx(text: str):
    toks = []; offs = []
    for m in re.finditer(r"\w+|[^\s\w]", text, flags=re.UNICODE):
        toks.append(m.group(0)); offs.append((m.start(), m.end()))
    return toks, offs, "approx"

def count_clip_tokens(text: str, limit_payload: int = 77, backend: str = "auto") -> TokenCountResult:
    try:
        if backend in ("auto", "transformers"):
            ids, offsets, used = _tokenize_transformers(text)
            total = len(ids); payload = max(0, total - 2) if total >= 2 else total
            keep_payload = min(payload, limit_payload)
            keep_ids = keep_payload + (2 if total >= 2 else 0)
            cut_char = None
            if keep_payload < payload and offsets:
                cut_index = keep_ids - 1
                if 0 <= cut_index < len(offsets): cut_char = offsets[cut_index][1]
            trimmed = text[:cut_char] if cut_char is not None else text
            overflow = max(0, payload - limit_payload)
            return TokenCountResult(used, total, payload, limit_payload, overflow, trimmed)
    except Exception:
        pass
    try:
        if backend in ("auto", "open_clip"):
            ids, offsets, used = _tokenize_open_clip(text)
            total = len(ids); payload = max(0, total - 2) if total >= 2 else total
            keep_payload = min(payload, limit_payload)
            keep_ids = keep_payload + (2 if total >= 2 else 0)
            cut_index = min(keep_ids - 1, len(offsets) - 1)
            cut_char = offsets[cut_index][1] if keep_payload < payload and cut_index >= 0 else None
            trimmed = text[:cut_char] if cut_char is not None else text
            overflow = max(0, payload - limit_payload)
            return TokenCountResult(used, total, payload, limit_payload, overflow, trimmed)
    except Exception:
        pass
    toks, offsets, used = _tokenize_approx(text)
    total = len(toks); payload = total
    keep_payload = min(payload, limit_payload)
    cut_index = keep_payload - 1
    cut_char = offsets[cut_index][1] if keep_payload < payload and 0 <= cut_index < len(offsets) else None
    trimmed = text[:cut_char] if cut_char is not None else text
    overflow = max(0, payload - limit_payload)
    return TokenCountResult(used, total, payload, limit_payload, overflow, trimmed)

# ---------------------------------------------------------
# Gradio UI для A1111
# ---------------------------------------------------------
def on_ui_tabs():
    import gradio as gr

    with gr.Blocks(analytics_enabled=False) as demo:
        gr.Markdown("## Prompt Refactor Plus")

        # --------- PARSER STATUS / CONTROL ----------
        with gr.Row():
            parser_status = gr.Textbox(label="Parser status", value=_pp_error or "OK", interactive=False)
            reload_btn = gr.Button("Reload parser")
        def _reload():
            return reload_parser_manual()
        reload_btn.click(_reload, outputs=[parser_status])

        # --------- EDITOR ----------
        with gr.Tab("Editor"):
            prompt_tb = gr.Textbox(label="Prompt", lines=8, placeholder="Введите промпт...")
            with gr.Row():
                palette_dd = gr.Dropdown(choices=list(PALETTE_TEMPLATES.keys()), value="Emphasis (1.2)", label="Шаблон")
                insert_btn = gr.Button("Вставить шаблон")
            insert_btn.click(palette_insert, inputs=[prompt_tb, palette_dd], outputs=[prompt_tb])

        # --------- ANALYSIS ----------
        with gr.Tab("Analysis"):
            with gr.Row():
                steps = gr.Slider(1, 200, value=20, step=1, label="Steps")
                use_pre = gr.Checkbox(value=True, label="Use Preprocessor")
                suppress_colon = gr.Checkbox(value=True, label="SUPPRESS_STANDALONE_COLON")
                analyze_btn = gr.Button("Analyze")
            with gr.Accordion("Advanced", open=False):
                with gr.Row():
                    visitor = gr.Checkbox(value=True, label="Visitor mode")
                    seed = gr.Number(value=None, label="Seed", precision=0)
                with gr.Row():
                    allow_empty_alt = gr.Checkbox(value=False, label="ALLOW_EMPTY_ALTERNATE")
                    expand_alt = gr.Checkbox(value=True, label="EXPAND_ALTERNATE_PER_STEP")
                    group_limit = gr.Number(value=100, label="GROUP_COMBO_LIMIT", precision=0)

            with gr.Tabs():
                with gr.Tab("Resolved"):
                    parse_out = gr.Textbox(label="", lines=4)
                    changes_out = gr.Textbox(label="Preprocessor Changes", lines=3)
                with gr.Tab("Schedule CSV"):
                    schedule_out = gr.Textbox(label="", lines=8)
                with gr.Tab("Timeline CSV"):
                    timeline_out = gr.Textbox(label="", lines=8)

            # QuickFix
            gr.Markdown("### QuickFix")
            fixes_state = gr.State(value=[])
            with gr.Row():
                fixes_dd = gr.Dropdown(choices=[], label="Выберите исправление")
                apply_fix_btn = gr.Button("Применить")
                auto_fix_btn = gr.Button("Auto QuickFix")

            def _analyze(prompt, steps, use_pre, visitor, seed, allow_empty_alt, expand_alt, group_limit, suppress_colon):
                res = analyze_prompt(
                    text=prompt or "",
                    steps=int(steps),
                    use_preprocessor=bool(use_pre),
                    visitor_mode=bool(visitor),
                    seed=None if seed in (None, "") else int(seed),
                    allow_empty_alt=bool(allow_empty_alt),
                    expand_alt_per_step=bool(expand_alt),
                    group_combo_limit=int(group_limit),
                    suppress_standalone_colon=bool(suppress_colon),
                )
                sgs = quickfix_suggestions(prompt or "")
                return (
                    res.resolved_text or "",
                    "\n".join(res.changes),
                    schedule_to_csv(res.schedule) if res.schedule else "",
                    timeline_to_csv(res.timeline) if res.timeline else "",
                    sgs,
                    gr.update(choices=[s["title"] for s in sgs]),
                    _pp_error or "OK"
                )

            analyze_btn.click(
                _analyze,
                inputs=[prompt_tb, steps, use_pre, visitor, seed, allow_empty_alt, expand_alt, group_limit, suppress_colon],
                outputs=[parse_out, changes_out, schedule_out, timeline_out, fixes_state, fixes_dd, parser_status]
            )

            def _apply_fix_cur(prompt: str, fixes: List[Dict[str, str]], title: str):
                m = {f["title"]: f["id"] for f in fixes}
                fid = m.get(title)
                return apply_quickfix(prompt or "", fid) if fid else prompt
            apply_fix_btn.click(_apply_fix_cur, inputs=[prompt_tb, fixes_state, fixes_dd], outputs=[prompt_tb])

            def _auto_fix(prompt: str):
                sgs = quickfix_suggestions(prompt or "")
                if not sgs: return prompt
                return apply_quickfix(prompt or "", sgs[0]["id"])
            auto_fix_btn.click(_auto_fix, inputs=[prompt_tb], outputs=[prompt_tb])

        # --------- WRAP ----------
        with gr.Tab("Wrap Wizard"):
            src_tb = gr.Textbox(label="Исходный текст", lines=6, placeholder="Один сегмент на строку или через верхнеуровневые запятые")
            seg_mode_dd = gr.Radio(choices=["auto", "lines", "comma"], value="auto", label="Разделение")
            with gr.Row():
                ww_steps = gr.Slider(2, 200, value=20, step=1, label="Steps (для top-level)")
                ww_boundary = gr.Number(value=None, label="Boundary (Top-Level 2)", precision=0)
                ww_b1 = gr.Number(value=None, label="b1 (Top-Level 3)", precision=0)
                ww_b2 = gr.Number(value=None, label="b2 (Top-Level 3)", precision=0)
            with gr.Row():
                seq_btn = gr.Button("Sequence")
                tl2_btn = gr.Button("Top-Level (2)")
                tl3_btn = gr.Button("Top-Level (3)")
            with gr.Row():
                alt_btn = gr.Button("Alternate")
                prob_btn = gr.Button("Prob-Equal")
            wrap_preview = gr.Textbox(label="Предпросмотр", lines=3)
            insert_wrap_btn = gr.Button("Вставить в Prompt")

            def on_wrap_seq(src, seg_mode): return wrap_sequence(src or "", seg_mode)
            def on_wrap_tl2(src, steps, boundary, seg_mode):
                b = None
                try:
                    if boundary not in (None, ""): b = int(boundary)
                except Exception: b = None
                return wrap_top_level2(src or "", steps=int(steps), boundary=b, seg_mode=seg_mode)
            def on_wrap_tl3(src, steps, b1, b2, seg_mode):
                bb = None
                try:
                    if b1 not in (None, "") and b2 not in (None, ""): bb = (int(b1), int(b2))
                except Exception: bb = None
                return wrap_top_level3(src or "", steps=int(steps), boundaries=bb, seg_mode=seg_mode)
            def on_wrap_alt(src, seg_mode): return wrap_alternate(src or "", seg_mode)
            def on_wrap_prob(src, seg_mode): return wrap_prob_equal(src or "", 1.0, seg_mode)

            seq_btn.click(on_wrap_seq, inputs=[src_tb, seg_mode_dd], outputs=[wrap_preview])
            tl2_btn.click(on_wrap_tl2, inputs=[src_tb, ww_steps, ww_boundary, seg_mode_dd], outputs=[wrap_preview])
            tl3_btn.click(on_wrap_tl3, inputs=[src_tb, ww_steps, ww_b1, ww_b2, seg_mode_dd], outputs=[wrap_preview])
            alt_btn.click(on_wrap_alt, inputs=[src_tb, seg_mode_dd], outputs=[wrap_preview])
            prob_btn.click(on_wrap_prob, inputs=[src_tb, seg_mode_dd], outputs=[wrap_preview])

            def _insert_block(cur_prompt: str, block: str) -> str:
                if not block or not block.strip(): return cur_prompt
                sep = "" if (not cur_prompt or cur_prompt.endswith((" ", "\n", ","))) else ", "
                return (cur_prompt or "") + sep + block
            insert_wrap_btn.click(_insert_block, inputs=[prompt_tb, wrap_preview], outputs=[prompt_tb])

        # --------- TIMELINE ----------
        with gr.Tab("Timeline Wizard"):
            seg_tb = gr.Textbox(label="Сегменты (по одному на строку)", lines=4, value="a\nb")
            boundaries_tb = gr.Textbox(label="Границы (CSV)", value="20")
            build_tl_btn = gr.Button("Построить")
            tl_preview = gr.Textbox(label="Предпросмотр", lines=2)
            insert_tl_btn = gr.Button("Вставить в Prompt")

            def build_schedule_block(segments_text: str, boundaries_csv: str) -> str:
                segs = [s.strip() for s in (segments_text or "").splitlines() if s.strip()]
                if not segs: return ""
                core = " : ".join(segs)
                bounds = [b.strip() for b in (boundaries_csv or "").split(",") if b.strip()]
                extra = f" : {', '.join(bounds)}" if bounds else ""
                return f"[ {core} ]{extra}"

            build_tl_btn.click(build_schedule_block, inputs=[seg_tb, boundaries_tb], outputs=[tl_preview])
            insert_tl_btn.click(_insert_block, inputs=[prompt_tb, tl_preview], outputs=[prompt_tb])

        # --------- TOKEN COUNTER ----------
        with gr.Tab("Token Counter"):
            payload_limit = gr.Slider(10, 200, value=77, step=1, label="Payload limit")
            backend_dd = gr.Dropdown(choices=["auto", "transformers", "open_clip", "approx"], value="auto", label="Backend (Advanced)")
            count_btn = gr.Button("Count")
            with gr.Row():
                backend_used = gr.Textbox(label="Used backend", interactive=False)
                total_out = gr.Number(label="Total tokens", interactive=False)
                payload_out = gr.Number(label="Payload tokens", interactive=False)
                overflow_out = gr.Number(label="Overflow", interactive=False)
            trimmed_tb = gr.Textbox(label="Trimmed text", lines=6)

            def on_count(prompt, limit_payload, backend):
                res = count_clip_tokens(prompt or "", limit_payload=int(limit_payload), backend=backend)
                return res.backend, res.total, res.payload, res.overflow, res.trimmed_text
            count_btn.click(on_count, inputs=[prompt_tb, payload_limit, backend_dd],
                            outputs=[backend_used, total_out, payload_out, overflow_out, trimmed_tb])

        # --------- ADVANCED (Curve/Prob/Test) ----------
        with gr.Tab("Advanced"):
            with gr.Accordion("Curve Editor", open=False):
                curve_segments_tb = gr.Textbox(label="Сегменты (пусто = seg1..N)", lines=6, value="")
                with gr.Row():
                    curve_num = gr.Slider(2, 8, value=3, step=1, label="N")
                    curve_steps = gr.Slider(2, 300, value=60, step=1, label="Steps")
                curve_kind = gr.Dropdown(choices=["linear", "ease-in", "ease-out", "ease-in-out", "cosine", "bezier"], value="ease-in-out", label="Кривая")
                curve_power = gr.Slider(1, 6, value=2, step=0.5, label="Показатель (ease-in/out)")
                with gr.Row():
                    bez_x1 = gr.Slider(0, 1, value=0.3, step=0.05, label="Bezier x1")
                    bez_y1 = gr.Slider(0, 1, value=0.0, step=0.05, label="Bezier y1")
                    bez_x2 = gr.Slider(0, 1, value=0.7, step=0.05, label="Bezier x2")
                    bez_y2 = gr.Slider(0, 1, value=1.0, step=0.05, label="Bezier y2")
                build_curve_btn = gr.Button("Build")
                curve_bounds_out = gr.Textbox(label="Границы", lines=1)
                curve_preview = gr.Textbox(label="Предпросмотр", lines=2)
                insert_curve_btn = gr.Button("Вставить в Prompt")

                def on_build_curve(segs_text, n, steps, kind, power, x1, y1, x2, y2):
                    bez = (float(x1), float(y1), float(x2), float(y2)) if kind == "bezier" else None
                    block, csvb = build_curve_schedule(segs_text or "", int(n), int(steps), str(kind), float(power), bez)
                    return csvb, block
                build_curve_btn.click(on_build_curve,
                                      inputs=[curve_segments_tb, curve_num, curve_steps, curve_kind, curve_power, bez_x1, bez_y1, bez_x2, bez_y2],
                                      outputs=[curve_bounds_out, curve_preview])
                insert_curve_btn.click(_insert_block, inputs=[prompt_tb, curve_preview], outputs=[prompt_tb])

            with gr.Accordion("Prob-Alternate Wizard", open=False):
                steps_pa = gr.Slider(1, 200, value=20, step=1, label="Steps")
                table = gr.Dataframe(headers=["Текст", "Вес"], datatype=["str", "number"],
                                     row_count=3, col_count=(2, "fixed"),
                                     value=[["a", 0.5], ["b", 0.5], ["", ""]], label="Варианты")
                build_pa_btn = gr.Button("Build")
                pa_preview = gr.Textbox(label="Предпросмотр", lines=2)
                def build_schedule_from_prob_table(rows, total_steps: int) -> str:
                    items: List[Tuple[str, float]] = []; total = 0.0
                    for r in rows or []:
                        if not r or len(r) < 2: continue
                        text = (r[0] or "").strip()
                        if not text: continue
                        try: w = float(str(r[1]).strip())
                        except Exception: w = 0.0
                        items.append((text, w)); total += w
                    if not items or total <= 0: return ""
                    boundaries: List[str] = []; acc = 0.0
                    for i in range(len(items) - 1):
                        acc += items[i][1] / total
                        b = int(round(acc * int(total_steps)))
                        if 0 < b < int(total_steps): boundaries.append(str(b))
                    core = " : ".join([t for t, _ in items])
                    extra = f" : {', '.join(boundaries)}" if boundaries else ""
                    return f"[ {core} ]{extra}"
                build_pa_btn.click(build_schedule_from_prob_table, inputs=[table, steps_pa], outputs=[pa_preview])
                insert_pa_btn = gr.Button("Вставить в Prompt")
                insert_pa_btn.click(_insert_block, inputs=[prompt_tb, pa_preview], outputs=[prompt_tb])

            with gr.Accordion("Test Generator (unit tests)", open=False):
                tg_steps = gr.Slider(1, 200, value=20, step=1, label="Steps")
                tg_seed = gr.Number(value=None, label="Seed", precision=0)
                with gr.Row():
                    tg_allow_empty = gr.Checkbox(value=False, label="ALLOW_EMPTY_ALTERNATE")
                    tg_expand_alt = gr.Checkbox(value=True, label="EXPAND_ALTERNATE_PER_STEP")
                    tg_group_limit = gr.Number(value=100, label="GROUP_COMBO_LIMIT", precision=0)
                    tg_suppr_colon = gr.Checkbox(value=True, label="SUPPRESS_STANDALONE_COLON")
                gen_btn = gr.Button("Generate")
                test_code_tb = gr.Textbox(label="test_prompt_parser_generated.py", lines=18)
                test_file = gr.File(label="Скачать", interactive=False)

                def generate_unittests_code(prompt_src: str, steps: int, env: Dict[str, str], seed: Optional[int], analysis: AnalysisResult) -> str:
                    resolved = analysis.resolved_text or ""
                    schedule = analysis.schedule or []
                    def slice_pairs(pairs: List[Tuple[int,str]], n_head: int = 3, n_tail: int = 3):
                        if len(pairs) <= n_head + n_tail: return pairs
                        return pairs[:n_head] + pairs[-n_tail:]
                    sched_sample = slice_pairs(schedule)
                    ENV_LINES = "\n".join([f"    os.environ[{repr(k)}] = {repr(v)}" for k, v in env.items()])
                    code = f'''\
import os, sys, unittest, importlib.machinery, importlib.util
PROMPT_PARSER_PATH = os.environ.get("PROMPT_PARSER_PATH", {repr(PROMPT_PARSER_PATH)})
def import_from_path(mod_name, path):
    if mod_name in sys.modules: del sys.modules[mod_name]
    loader = importlib.machinery.SourceFileLoader(mod_name, path)
    spec = importlib.util.spec_from_loader(loader.name, loader)
    mod = importlib.util.module_from_spec(spec); loader.exec_module(mod); return mod
class TestPromptParserGenerated(unittest.TestCase):
    @classmethod
    def setUpClass(cls):
{ENV_LINES and ENV_LINES or "        pass"}
        cls.pp = import_from_path("pp", PROMPT_PARSER_PATH)
    def test_parse_and_resolve(self):
        pp = self.pp; src = {repr(prompt_src)}
        tree = pp.schedule_parser.parse(src)
        resolved = pp.resolve_tree(tree, keep_spacing=True)
        self.assertEqual(resolved, {repr(resolved)})
    def test_schedule_sample(self):
        pp = self.pp; src = {repr(prompt_src)}; steps = {int(steps)}
        collector = pp.CollectSteps(steps, prefix="", suffix="", depth=0, use_scheduling=True, seed={repr(seed)})
        schedules = collector.visit(tree := pp.schedule_parser.parse(src)) or []
        got = [(int(b), str(t)) for b, t in schedules]
        sample_got = (got[:3] + got[-3:]) if len(got) > 6 else got
        self.assertEqual(sample_got, {repr(sched_sample)})
if __name__ == "__main__": unittest.main()
'''
                    return code

                def on_gen(prompt, steps, seed, ae, ex, gl, sc):
                    reload_parser_after_env(bool(ae), bool(ex), int(gl), bool(sc))
                    res = analyze_prompt(
                        text=prompt or "", steps=int(steps), use_preprocessor=True, visitor_mode=True,
                        seed=None if seed in (None, "") else int(seed),
                        allow_empty_alt=bool(ae), expand_alt_per_step=bool(ex),
                        group_combo_limit=int(gl), suppress_standalone_colon=bool(sc)
                    )
                    env = {
                        "ALLOW_EMPTY_ALTERNATE": "1" if ae else "0",
                        "EXPAND_ALTERNATE_PER_STEP": "1" if ex else "0",
                        "GROUP_COMBO_LIMIT": str(int(gl)),
                        "SUPPRESS_STANDALONE_COLON": "1" if sc else "0",
                    }
                    code = generate_unittests_code(prompt or "", int(steps), env, None if seed in (None, "") else int(seed), res)
                    path = "/mnt/data/test_prompt_parser_generated.py"
                    try:
                        with open(path, "w", encoding="utf-8") as f: f.write(code)
                        return code, path
                    except Exception:
                        return code, None

                gen_btn.click(on_gen,
                              inputs=[prompt_tb, tg_steps, tg_seed, tg_allow_empty, tg_expand_alt, tg_group_limit, tg_suppr_colon],
                              outputs=[test_code_tb, test_file])

    # Вернуть как вкладку WebUI
    return [(demo, "Prompt Refactor", "prompt_refactor_tab")]

# Зарегистрировать вкладку при работе внутри A1111
if script_callbacks is not None:
    script_callbacks.on_ui_tabs(on_ui_tabs)