import gradio as gr
import numpy as np
import random
import torch
import spaces
from typing import Iterable
from PIL import Image, ImageDraw
from diffusers import FlowMatchEulerDiscreteScheduler
from qwenimage.pipeline_qwenimage_edit_plus import QwenImageEditPlusPipeline
from qwenimage.transformer_qwenimage import QwenImageTransformer2DModel
from qwenimage.qwen_fa3_processor import QwenDoubleStreamAttnProcessorFA3

from gradio.themes import Soft
from gradio.themes.utils import colors, fonts, sizes

colors.purple = colors.Color(
    name="purple",
    c50="#FAF5FF",
    c100="#F3E8FF",
    c200="#E9D5FF",
    c300="#DAB2FF",
    c400="#C084FC",
    c500="#A855F7",
    c600="#9333EA",
    c700="#7E22CE",
    c800="#6B21A8",
    c900="#581C87",
    c950="#3B0764",
)


class PurpleTheme(Soft):
    def __init__(
        self,
        *,
        primary_hue: colors.Color | str = colors.gray,
        secondary_hue: colors.Color | str = colors.purple,
        neutral_hue: colors.Color | str = colors.slate,
        text_size: sizes.Size | str = sizes.text_lg,
        font: fonts.Font | str | Iterable[fonts.Font | str] = (
            fonts.GoogleFont("Outfit"), "Arial", "sans-serif",
        ),
        font_mono: fonts.Font | str | Iterable[fonts.Font | str] = (
            fonts.GoogleFont("IBM Plex Mono"), "ui-monospace", "monospace",
        ),
    ):
        super().__init__(
            primary_hue=primary_hue,
            secondary_hue=secondary_hue,
            neutral_hue=neutral_hue,
            text_size=text_size,
            font=font,
            font_mono=font_mono,
        )
        super().set(
            background_fill_primary="*primary_50",
            background_fill_primary_dark="*primary_900",
            body_background_fill="linear-gradient(135deg, *primary_200, *primary_100)",
            body_background_fill_dark="linear-gradient(135deg, *primary_900, *primary_800)",
            button_primary_text_color="white",
            button_primary_text_color_hover="white",
            button_primary_background_fill="linear-gradient(90deg, *secondary_500, *secondary_600)",
            button_primary_background_fill_hover="linear-gradient(90deg, *secondary_600, *secondary_700)",
            button_primary_background_fill_dark="linear-gradient(90deg, *secondary_600, *secondary_700)",
            button_primary_background_fill_hover_dark="linear-gradient(90deg, *secondary_500, *secondary_600)",
            button_secondary_text_color="black",
            button_secondary_text_color_hover="white",
            button_secondary_background_fill="linear-gradient(90deg, *primary_300, *primary_300)",
            button_secondary_background_fill_hover="linear-gradient(90deg, *primary_400, *primary_400)",
            button_secondary_background_fill_dark="linear-gradient(90deg, *primary_500, *primary_600)",
            button_secondary_background_fill_hover_dark="linear-gradient(90deg, *primary_500, *primary_500)",
            slider_color="*secondary_500",
            slider_color_dark="*secondary_600",
            block_title_text_weight="600",
            block_border_width="3px",
            block_shadow="*shadow_drop_lg",
            button_primary_shadow="*shadow_drop_lg",
            button_large_padding="11px",
            color_accent_soft="*primary_100",
            block_label_background_fill="*primary_200",
        )


purple_theme = PurpleTheme()

MAX_SEED = np.iinfo(np.int32).max

dtype = torch.bfloat16
device = "cuda" if torch.cuda.is_available() else "cpu"
pipe = QwenImageEditPlusPipeline.from_pretrained(
    "Qwen/Qwen-Image-Edit-2509",
    transformer=QwenImageTransformer2DModel.from_pretrained(
        "prithivMLmods/Qwen-Image-Edit-Rapid-AIO-V4",
        torch_dtype=dtype,
        device_map="cuda",
    ),
    torch_dtype=dtype,
).to(device)
try:
    pipe.transformer.set_attn_processor(QwenDoubleStreamAttnProcessorFA3())
    print("Flash Attention 3 Processor set successfully.")
except Exception as e:
    print(f"Warning: Could not set FA3 processor: {e}")

ADAPTER_SPECS = {
    "Object-Remover": {
        "repo": "prithivMLmods/QIE-2511-Object-Remover-v2",
        "weights": "Qwen-Image-Edit-2511-Object-Remover-v2-9200.safetensors",
        "adapter_name": "object-remover",
    },
}
loaded = False

DEFAULT_PROMPT = "Remove the red highlighted object from the scene"


def burn_boxes_onto_image(pil_image: Image.Image, boxes_json_str: str) -> Image.Image:
    import json
    if not pil_image:
        return pil_image
    try:
        boxes = json.loads(boxes_json_str) if boxes_json_str and boxes_json_str.strip() else []
    except Exception:
        boxes = []
    if not boxes:
        return pil_image

    img = pil_image.copy().convert("RGBA")
    w, h = img.size
    overlay = Image.new("RGBA", img.size, (0, 0, 0, 0))
    draw = ImageDraw.Draw(overlay)
    bw = max(3, w // 250)

    for b in boxes:
        x1 = int(b["x1"] * w)
        y1 = int(b["y1"] * h)
        x2 = int(b["x2"] * w)
        y2 = int(b["y2"] * h)
        lx, rx = min(x1, x2), max(x1, x2)
        ty, by_ = min(y1, y2), max(y1, y2)
        draw.rectangle([lx, ty, rx, by_], fill=(255, 0, 0, 90))
        draw.rectangle([lx, ty, rx, by_], outline=(255, 0, 0, 255), width=bw)

    return Image.alpha_composite(img, overlay).convert("RGB")


@spaces.GPU
def infer_object_removal(
    source_image: Image.Image,
    boxes_json: str,
    prompt: str,
    seed: int = 0,
    randomize_seed: bool = True,
    guidance_scale: float = 1.0,
    num_inference_steps: int = 4,
    height: int = 1024,
    width: int = 1024,
):
    global loaded
    progress = gr.Progress(track_tqdm=True)

    if not loaded:
        pipe.load_lora_weights(
            ADAPTER_SPECS["Object-Remover"]["repo"],
            weight_name=ADAPTER_SPECS["Object-Remover"]["weights"],
            adapter_name=ADAPTER_SPECS["Object-Remover"]["adapter_name"],
        )
        pipe.set_adapters(
            [ADAPTER_SPECS["Object-Remover"]["adapter_name"]], adapter_weights=[1.0]
        )
        loaded = True

    if not prompt or prompt.strip() == "":
        prompt = DEFAULT_PROMPT
    print(f"Prompt: {prompt}")
    print(f"Boxes JSON received: '{boxes_json}'")

    if source_image is None:
        raise gr.Error("Please upload an image first.")

    import json
    try:
        boxes = json.loads(boxes_json) if boxes_json and boxes_json.strip() else []
    except Exception as e:
        print(f"JSON parse error: {e}")
        boxes = []

    if not boxes:
        raise gr.Error("Please draw at least one bounding box on the image.")

    progress(0.3, desc="Burning red boxes onto image...")
    marked = burn_boxes_onto_image(source_image, boxes_json)

    progress(0.5, desc="Running object removal inference...")

    if randomize_seed:
        seed = random.randint(0, MAX_SEED)
    generator = torch.Generator(device=device).manual_seed(seed)

    result = pipe(
        image=[marked],
        prompt=prompt,
        height=height if height != 0 else None,
        width=width if width != 0 else None,
        num_inference_steps=num_inference_steps,
        generator=generator,
        guidance_scale=guidance_scale,
        num_images_per_prompt=1,
    ).images[0]

    return result, seed, marked


def update_dimensions_on_upload(image):
    if image is None:
        return 1024, 1024
    original_width, original_height = image.size
    if original_width > original_height:
        new_width = 1024
        aspect_ratio = original_height / original_width
        new_height = int(new_width * aspect_ratio)
    else:
        new_height = 1024
        aspect_ratio = original_width / original_height
        new_width = int(new_height * aspect_ratio)
    new_width = (new_width // 8) * 8
    new_height = (new_height // 8) * 8
    return new_width, new_height


css = r"""
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');
body,.gradio-container{background-color:#FAF5FF!important;background-image:linear-gradient(#E9D5FF 1px,transparent 1px),linear-gradient(90deg,#E9D5FF 1px,transparent 1px)!important;background-size:40px 40px!important;font-family:'Outfit',sans-serif!important}
.dark body,.dark .gradio-container{background-color:#1a1a1a!important;background-image:linear-gradient(rgba(168,85,247,.1) 1px,transparent 1px),linear-gradient(90deg,rgba(168,85,247,.1) 1px,transparent 1px)!important;background-size:40px 40px!important}
#col-container{margin:0 auto;max-width:1200px}
#main-title{text-align:center!important;padding:1rem 0 .5rem 0}
#main-title h1{font-size:2.4em!important;font-weight:700!important;background:linear-gradient(135deg,#A855F7 0%,#C084FC 50%,#9333EA 100%);background-size:200% 200%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:gradient-shift 4s ease infinite;letter-spacing:-.02em}
@keyframes gradient-shift{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
#subtitle{text-align:center!important;margin-bottom:1.5rem}
#subtitle p{margin:0 auto;color:#666;font-size:1rem;text-align:center!important}
#subtitle a{color:#A855F7!important;text-decoration:none;font-weight:500}
#subtitle a:hover{text-decoration:underline}
.gradio-group{background:rgba(255,255,255,.9)!important;border:2px solid #E9D5FF!important;border-radius:12px!important;box-shadow:0 4px 24px rgba(168,85,247,.08)!important;backdrop-filter:blur(10px);transition:all .3s ease}
.gradio-group:hover{box-shadow:0 8px 32px rgba(168,85,247,.12)!important;border-color:#C084FC!important}
.dark .gradio-group{background:rgba(30,30,30,.9)!important;border-color:rgba(168,85,247,.3)!important}
.primary{border-radius:8px!important;font-weight:600!important;letter-spacing:.02em!important;transition:all .3s ease!important}
.primary:hover{transform:translateY(-2px)!important}
.gradio-textbox textarea{font-family:'IBM Plex Mono',monospace!important;font-size:.95rem!important;line-height:1.7!important;background:rgba(255,255,255,.95)!important;border:1px solid #E9D5FF!important;border-radius:8px!important}
.gradio-accordion{border-radius:10px!important;border:1px solid #E9D5FF!important}
.gradio-accordion>.label-wrap{background:rgba(168,85,247,.03)!important;border-radius:10px!important}
footer{display:none!important}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.gradio-row{animation:fadeIn .4s ease-out}
label{font-weight:600!important;color:#333!important}
.dark label{color:#eee!important}
.gradio-slider input[type="range"]{accent-color:#A855F7!important}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:rgba(168,85,247,.05);border-radius:4px}
::-webkit-scrollbar-thumb{background:linear-gradient(135deg,#A855F7,#C084FC);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:linear-gradient(135deg,#9333EA,#A855F7)}

#bbox-draw-wrap{position:relative;border:2px solid #C084FC;border-radius:12px;overflow:hidden;background:#1a1a1a;min-height:420px}
#bbox-draw-wrap:hover{border-color:#A855F7}
#bbox-draw-canvas{cursor:crosshair;display:block;margin:0 auto}
.bbox-hint{background:rgba(168,85,247,.08);border:1px solid #E9D5FF;border-radius:8px;padding:10px 16px;margin:8px 0;font-size:.9rem;color:#6B21A8}
.dark .bbox-hint{background:rgba(168,85,247,.15);border-color:rgba(168,85,247,.3);color:#C084FC}

.bbox-toolbar-section{
    display:flex;
    gap:8px;
    flex-wrap:wrap;
    justify-content:center;
    align-items:center;
    padding:12px 16px;
    margin-top:10px;
    background:rgba(255,255,255,.92);
    border:2px solid #E9D5FF;
    border-radius:10px;
    box-shadow:0 2px 12px rgba(168,85,247,.08);
}
.dark .bbox-toolbar-section{
    background:rgba(30,30,30,.9);
    border-color:rgba(168,85,247,.3);
}
.bbox-toolbar-section .toolbar-label{
    font-family:'Outfit',sans-serif;
    font-weight:600;
    font-size:13px;
    color:#6B21A8;
    margin-right:6px;
    user-select:none;
}
.dark .bbox-toolbar-section .toolbar-label{color:#C084FC}
.bbox-toolbar-section .toolbar-divider{
    width:1px;
    height:28px;
    background:#E9D5FF;
    margin:0 4px;
}
.dark .bbox-toolbar-section .toolbar-divider{background:rgba(168,85,247,.3)}
.bbox-toolbar-section button{
    color:#fff;
    border:none;
    padding:7px 15px;
    border-radius:7px;
    cursor:pointer;
    font-family:'Outfit',sans-serif;
    font-weight:600;
    font-size:13px;
    box-shadow:0 2px 5px rgba(0,0,0,.15);
    transition:background .2s,transform .15s,box-shadow .2s;
}
.bbox-toolbar-section button:hover{transform:translateY(-1px);box-shadow:0 4px 10px rgba(0,0,0,.2)}
.bbox-toolbar-section button:active{transform:translateY(0)}
.bbox-tb-draw{background:#9333EA}
.bbox-tb-draw:hover{background:#A855F7}
.bbox-tb-draw.active{background:#22c55e;box-shadow:0 0 8px rgba(34,197,94,.5)}
.bbox-tb-select{background:#6366f1}
.bbox-tb-select:hover{background:#818cf8}
.bbox-tb-select.active{background:#22c55e;box-shadow:0 0 8px rgba(34,197,94,.5)}
.bbox-tb-del{background:#dc2626}
.bbox-tb-del:hover{background:#ef4444}
.bbox-tb-undo{background:#7E22CE}
.bbox-tb-undo:hover{background:#9333EA}
.bbox-tb-clear{background:#be123c}
.bbox-tb-clear:hover{background:#e11d48}

#bbox-status{position:absolute;top:10px;left:10px;background:rgba(0,0,0,.75);color:#00ff88;padding:5px 10px;border-radius:6px;font-family:'IBM Plex Mono',monospace;font-size:11px;z-index:10;display:none;pointer-events:none}
#bbox-count{position:absolute;top:10px;right:10px;background:rgba(147,51,234,.85);color:#fff;padding:4px 10px;border-radius:6px;font-family:'IBM Plex Mono',monospace;font-size:11px;z-index:10;display:none}

#bbox-debug-count{
    text-align:center;
    padding:6px 12px;
    margin-top:6px;
    font-family:'IBM Plex Mono',monospace;
    font-size:12px;
    color:#6B21A8;
    background:rgba(168,85,247,.06);
    border:1px dashed #C084FC;
    border-radius:6px;
}
.dark #bbox-debug-count{color:#C084FC;background:rgba(168,85,247,.12)}

/* ===== FIX: hide the sync textbox visually but keep it in the DOM ===== */
#boxes-json-input{
    max-height:0!important;
    overflow:hidden!important;
    margin:0!important;
    padding:0!important;
    opacity:0!important;
    pointer-events:none!important;
    position:absolute!important;
    z-index:-1!important;
}
"""

bbox_drawer_js = r"""
() => {
    function initCanvasBbox() {
        if (window.__bboxInitDone) return;

        const canvas     = document.getElementById('bbox-draw-canvas');
        const wrap       = document.getElementById('bbox-draw-wrap');
        const status     = document.getElementById('bbox-status');
        const badge      = document.getElementById('bbox-count');
        const debugCount = document.getElementById('bbox-debug-count');

        const btnDraw   = document.getElementById('tb-draw');
        const btnSelect = document.getElementById('tb-select');
        const btnDel    = document.getElementById('tb-del');
        const btnUndo   = document.getElementById('tb-undo');
        const btnClear  = document.getElementById('tb-clear');

        if (!canvas || !wrap || !debugCount || !btnDraw) {
            console.log('[BBox] waiting for DOM …');
            setTimeout(initCanvasBbox, 250);
            return;
        }

        window.__bboxInitDone = true;
        console.log('[BBox] canvas init OK');
        const ctx = canvas.getContext('2d');

        let boxes = [];
        window.__bboxBoxes = boxes;

        let baseImg = null;
        let dispW = 512, dispH = 400;
        let selectedIdx = -1;
        let mode = 'draw';

        let dragging  = false;
        let dragType  = null;
        let dragStart = {x:0, y:0};
        let dragOrig  = null;
        const HANDLE  = 7;

        /* ── helpers ── */
        function n2px(b) {
            return {x1:b.x1*dispW, y1:b.y1*dispH, x2:b.x2*dispW, y2:b.y2*dispH};
        }
        function px2n(x1,y1,x2,y2) {
            return {
                x1: Math.min(x1,x2)/dispW, y1: Math.min(y1,y2)/dispH,
                x2: Math.max(x1,x2)/dispW, y2: Math.max(y1,y2)/dispH
            };
        }
        function clamp01(v){return Math.max(0,Math.min(1,v));}
        function fitSize(nw, nh) {
            const mw = wrap.clientWidth || 512, mh = 500;
            const r = Math.min(mw/nw, mh/nh, 1);
            dispW = Math.round(nw*r); dispH = Math.round(nh*r);
            canvas.width  = dispW; canvas.height = dispH;
            canvas.style.width  = dispW+'px';
            canvas.style.height = dispH+'px';
        }
        function canvasXY(e) {
            const r  = canvas.getBoundingClientRect();
            const cx = e.touches ? e.touches[0].clientX : e.clientX;
            const cy = e.touches ? e.touches[0].clientY : e.clientY;
            return {x: Math.max(0,Math.min(dispW, cx-r.left)),
                    y: Math.max(0,Math.min(dispH, cy-r.top))};
        }

        /* ── FIX: always update debug + badge, then try textbox ── */
        function syncToGradio() {
            window.__bboxBoxes = boxes;
            const jsonStr = JSON.stringify(boxes);

            /* 1) update on-screen debug no matter what */
            if (debugCount) {
                debugCount.textContent = boxes.length > 0
                    ? '\u2705 ' + boxes.length + ' box' + (boxes.length > 1 ? 'es' : '') +
                      ' ready  |  JSON: ' + jsonStr.substring(0,80) +
                      (jsonStr.length > 80 ? '\u2026' : '')
                    : '\u2B1C No boxes drawn yet';
            }

            /* 2) try to push into the Gradio Textbox (best-effort) */
            const container = document.getElementById('boxes-json-input');
            if (!container) {
                console.warn('[BBox] #boxes-json-input not in DOM (hidden?)');
                return;
            }
            const targets = [
                ...container.querySelectorAll('textarea'),
                ...container.querySelectorAll('input[type="text"]'),
                ...container.querySelectorAll('input:not([type])')
            ];
            targets.forEach(el => {
                const proto = el.tagName === 'TEXTAREA'
                    ? HTMLTextAreaElement.prototype
                    : HTMLInputElement.prototype;
                const ns = Object.getOwnPropertyDescriptor(proto, 'value');
                if (ns && ns.set) {
                    ns.set.call(el, jsonStr);
                    el.dispatchEvent(new Event('input',  {bubbles:true, composed:true}));
                    el.dispatchEvent(new Event('change', {bubbles:true, composed:true}));
                    el.dispatchEvent(new Event('blur',   {bubbles:true, composed:true}));
                }
            });
        }

        /* ── draw ── */
        function placeholder() {
            ctx.fillStyle='#2a2a2a'; ctx.fillRect(0,0,dispW,dispH);
            ctx.strokeStyle='#444'; ctx.lineWidth=2; ctx.setLineDash([8,4]);
            ctx.strokeRect(20,20,dispW-40,dispH-40); ctx.setLineDash([]);
            ctx.fillStyle='#888'; ctx.font='16px Outfit,sans-serif';
            ctx.textAlign='center'; ctx.textBaseline='middle';
            ctx.fillText('Upload an image above first',dispW/2,dispH/2-10);
            ctx.font='13px Outfit'; ctx.fillStyle='#666';
            ctx.fillText('Then draw red boxes on objects to remove',dispW/2,dispH/2+14);
        }

        function redraw(tempRect) {
            ctx.clearRect(0,0,dispW,dispH);
            if (!baseImg) { placeholder(); updateBadge(); return; }
            ctx.drawImage(baseImg, 0, 0, dispW, dispH);

            boxes.forEach((b,i) => {
                const p = n2px(b);
                const lx=p.x1, ty=p.y1, w=p.x2-p.x1, h=p.y2-p.y1;

                ctx.fillStyle = 'rgba(255,0,0,0.25)';
                ctx.fillRect(lx,ty,w,h);

                if (i === selectedIdx) {
                    ctx.strokeStyle = 'rgba(0,120,255,0.95)';
                    ctx.lineWidth = 2.5; ctx.setLineDash([6,3]);
                } else {
                    ctx.strokeStyle = 'rgba(255,0,0,0.9)';
                    ctx.lineWidth = 2.5; ctx.setLineDash([]);
                }
                ctx.strokeRect(lx,ty,w,h);
                ctx.setLineDash([]);

                ctx.fillStyle = i===selectedIdx ? 'rgba(0,120,255,0.85)' : 'rgba(255,0,0,0.85)';
                ctx.font = 'bold 11px IBM Plex Mono,monospace';
                ctx.textAlign = 'left'; ctx.textBaseline = 'top';
                const label = '#'+(i+1);
                const tw = ctx.measureText(label).width;
                ctx.fillRect(lx, ty-16, tw+6, 16);
                ctx.fillStyle = '#fff';
                ctx.fillText(label, lx+3, ty-14);

                if (i === selectedIdx) drawHandles(p);
            });

            if (tempRect) {
                const rx = Math.min(tempRect.x1,tempRect.x2);
                const ry = Math.min(tempRect.y1,tempRect.y2);
                const rw = Math.abs(tempRect.x2-tempRect.x1);
                const rh = Math.abs(tempRect.y2-tempRect.y1);
                ctx.fillStyle='rgba(255,0,0,0.12)';
                ctx.fillRect(rx,ry,rw,rh);
                ctx.strokeStyle='rgba(255,0,0,0.7)';
                ctx.lineWidth=2; ctx.setLineDash([6,3]);
                ctx.strokeRect(rx,ry,rw,rh); ctx.setLineDash([]);
            }
            updateBadge();
        }

        function drawHandles(p) {
            const pts = handlePoints(p);
            ctx.fillStyle = 'rgba(0,120,255,0.9)';
            ctx.strokeStyle = '#fff'; ctx.lineWidth = 1.5;
            for (const k in pts) {
                const h = pts[k];
                ctx.fillRect(h.x-HANDLE, h.y-HANDLE, HANDLE*2, HANDLE*2);
                ctx.strokeRect(h.x-HANDLE, h.y-HANDLE, HANDLE*2, HANDLE*2);
            }
        }

        function handlePoints(p) {
            const mx = (p.x1+p.x2)/2, my = (p.y1+p.y2)/2;
            return {
                tl:{x:p.x1,y:p.y1}, tc:{x:mx,y:p.y1}, tr:{x:p.x2,y:p.y1},
                ml:{x:p.x1,y:my},                       mr:{x:p.x2,y:my},
                bl:{x:p.x1,y:p.y2}, bc:{x:mx,y:p.y2}, br:{x:p.x2,y:p.y2}
            };
        }

        function hitHandle(px, py, boxIdx) {
            if (boxIdx < 0) return null;
            const p = n2px(boxes[boxIdx]);
            const pts = handlePoints(p);
            for (const k in pts) {
                if (Math.abs(px-pts[k].x) <= HANDLE+2 && Math.abs(py-pts[k].y) <= HANDLE+2) return k;
            }
            return null;
        }

        function hitBox(px, py) {
            for (let i = boxes.length-1; i >= 0; i--) {
                const p = n2px(boxes[i]);
                if (px >= p.x1 && px <= p.x2 && py >= p.y1 && py <= p.y2) return i;
            }
            return -1;
        }

        function updateBadge() {
            if (boxes.length > 0) {
                badge.style.display = 'block';
                badge.textContent = boxes.length + ' box' + (boxes.length>1?'es':'');
            } else {
                badge.style.display = 'none';
            }
        }

        function setMode(m) {
            mode = m;
            btnDraw.classList.toggle('active', m==='draw');
            btnSelect.classList.toggle('active', m==='select');
            canvas.style.cursor = m==='draw' ? 'crosshair' : 'default';
            if (m==='draw') selectedIdx = -1;
            redraw();
        }

        function showStatus(txt) {
            status.textContent = txt; status.style.display = 'block';
        }
        function hideStatus() { status.style.display = 'none'; }

        /* ── pointer events ── */
        function onDown(e) {
            if (!baseImg) return;
            e.preventDefault();
            const {x, y} = canvasXY(e);

            if (mode === 'draw') {
                dragging = true; dragType = 'new';
                dragStart = {x, y};
                selectedIdx = -1;
            } else {
                if (selectedIdx >= 0) {
                    const h = hitHandle(x, y, selectedIdx);
                    if (h) {
                        dragging = true; dragType = h;
                        dragStart = {x, y};
                        dragOrig = {...boxes[selectedIdx]};
                        showStatus('Resizing box #'+(selectedIdx+1));
                        return;
                    }
                }
                const hi = hitBox(x, y);
                if (hi >= 0) {
                    selectedIdx = hi;
                    const h2 = hitHandle(x, y, selectedIdx);
                    if (h2) {
                        dragging = true; dragType = h2;
                        dragStart = {x, y};
                        dragOrig = {...boxes[selectedIdx]};
                        showStatus('Resizing box #'+(selectedIdx+1));
                        redraw(); return;
                    }
                    dragging = true; dragType = 'move';
                    dragStart = {x, y};
                    dragOrig = {...boxes[selectedIdx]};
                    showStatus('Moving box #'+(selectedIdx+1));
                } else {
                    selectedIdx = -1;
                    hideStatus();
                }
                redraw();
            }
        }

        function onMove(e) {
            if (!baseImg) return;
            e.preventDefault();
            const {x, y} = canvasXY(e);

            if (!dragging) {
                if (mode === 'select') {
                    if (selectedIdx >= 0 && hitHandle(x,y,selectedIdx)) {
                        const h = hitHandle(x,y,selectedIdx);
                        const curs = {tl:'nwse-resize',tr:'nesw-resize',bl:'nesw-resize',br:'nwse-resize',
                                      tc:'ns-resize',bc:'ns-resize',ml:'ew-resize',mr:'ew-resize'};
                        canvas.style.cursor = curs[h] || 'move';
                    } else if (hitBox(x,y) >= 0) {
                        canvas.style.cursor = 'move';
                    } else {
                        canvas.style.cursor = 'default';
                    }
                }
                return;
            }

            if (dragType === 'new') {
                redraw({x1:dragStart.x, y1:dragStart.y, x2:x, y2:y});
                showStatus(Math.abs(x-dragStart.x).toFixed(0)+'\u00d7'+Math.abs(y-dragStart.y).toFixed(0)+' px');
                return;
            }

            const dx = (x - dragStart.x) / dispW;
            const dy = (y - dragStart.y) / dispH;
            const b  = boxes[selectedIdx];
            const o  = dragOrig;

            if (dragType === 'move') {
                const bw = o.x2-o.x1, bh = o.y2-o.y1;
                let nx1 = o.x1+dx, ny1 = o.y1+dy;
                nx1 = clamp01(nx1); ny1 = clamp01(ny1);
                if (nx1+bw > 1) nx1 = 1-bw;
                if (ny1+bh > 1) ny1 = 1-bh;
                b.x1=nx1; b.y1=ny1; b.x2=nx1+bw; b.y2=ny1+bh;
            } else {
                const t = dragType;
                if (t.includes('l')) b.x1 = clamp01(o.x1 + dx);
                if (t.includes('r')) b.x2 = clamp01(o.x2 + dx);
                if (t.includes('t')) b.y1 = clamp01(o.y1 + dy);
                if (t.includes('b')) b.y2 = clamp01(o.y2 + dy);
                if (Math.abs(b.x2-b.x1) < 0.01) { b.x1=o.x1; b.x2=o.x2; }
                if (Math.abs(b.y2-b.y1) < 0.01) { b.y1=o.y1; b.y2=o.y2; }
                if (b.x1 > b.x2) { const t2=b.x1; b.x1=b.x2; b.x2=t2; }
                if (b.y1 > b.y2) { const t2=b.y1; b.y1=b.y2; b.y2=t2; }
            }
            redraw();
        }

        function onUp(e) {
            if (!dragging) return;
            if (e) e.preventDefault();
            dragging = false;

            if (dragType === 'new') {
                const pt = e ? canvasXY(e) : {x:dragStart.x, y:dragStart.y};
                if (Math.abs(pt.x-dragStart.x) > 4 && Math.abs(pt.y-dragStart.y) > 4) {
                    const nb = px2n(dragStart.x, dragStart.y, pt.x, pt.y);
                    boxes.push(nb);
                    window.__bboxBoxes = boxes;
                    selectedIdx = boxes.length - 1;
                    console.log('[BBox] created box #'+boxes.length, nb);
                    showStatus('Box #'+boxes.length+' created');
                } else { hideStatus(); }
            } else {
                showStatus('Box #'+(selectedIdx+1)+' updated');
            }
            dragType = null; dragOrig = null;
            syncToGradio();
            redraw();
        }

        canvas.addEventListener('mousedown',  onDown);
        canvas.addEventListener('mousemove',  onMove);
        canvas.addEventListener('mouseup',    onUp);
        canvas.addEventListener('mouseleave', (e)=>{if(dragging)onUp(e);});
        canvas.addEventListener('touchstart', onDown, {passive:false});
        canvas.addEventListener('touchmove',  onMove, {passive:false});
        canvas.addEventListener('touchend',   onUp,   {passive:false});
        canvas.addEventListener('touchcancel',(e)=>{e.preventDefault();dragging=false;redraw();},{passive:false});

        /* ── toolbar ── */
        btnDraw.addEventListener('click',   ()=>setMode('draw'));
        btnSelect.addEventListener('click', ()=>setMode('select'));

        btnDel.addEventListener('click', () => {
            if (selectedIdx >= 0 && selectedIdx < boxes.length) {
                const removed = selectedIdx + 1;
                boxes.splice(selectedIdx, 1);
                window.__bboxBoxes = boxes;
                selectedIdx = -1;
                syncToGradio(); redraw();
                showStatus('Box #'+removed+' deleted');
            } else {
                showStatus('No box selected');
            }
        });

        btnUndo.addEventListener('click', () => {
            if (boxes.length > 0) {
                boxes.pop();
                window.__bboxBoxes = boxes;
                selectedIdx = -1;
                syncToGradio(); redraw();
                showStatus('Last box removed');
            }
        });

        btnClear.addEventListener('click', () => {
            boxes.length = 0;            /* clear in-place */
            window.__bboxBoxes = boxes;
            selectedIdx = -1;
            syncToGradio(); redraw(); hideStatus();
        });

        /* ── FIX: robust image polling with multiple selectors ── */
        let lastSrc = null;
        setInterval(() => {
            /* try several selectors Gradio might use */
            const imgs = document.querySelectorAll('#source-image-component img');
            let el = null;
            for (const img of imgs) {
                if (img.src && img.src.length > 30 &&
                    (img.src.startsWith('data:') ||
                     img.src.startsWith('blob:') ||
                     img.src.includes('/file=') ||
                     img.src.includes('/upload') ||
                     img.src.includes('localhost') ||
                     img.src.includes('127.0.0.1') ||
                     img.src.startsWith('http'))) {
                    el = img;
                    break;
                }
            }

            if (el && el.src && el.src !== lastSrc) {
                lastSrc = el.src;
                const img = new window.Image();
                img.crossOrigin = 'anonymous';
                img.onload = () => {
                    baseImg = img;
                    boxes.length = 0;
                    window.__bboxBoxes = boxes;
                    selectedIdx = -1;
                    fitSize(img.naturalWidth, img.naturalHeight);
                    syncToGradio(); redraw(); hideStatus();
                    console.log('[BBox] loaded image', img.naturalWidth, 'x', img.naturalHeight);
                };
                img.onerror = () => {
                    console.warn('[BBox] image load failed for', el.src.substring(0,60));
                };
                img.src = el.src;
            } else if (!el || !el.src) {
                if (baseImg) {
                    baseImg = null;
                    boxes.length = 0;
                    window.__bboxBoxes = boxes;
                    selectedIdx = -1;
                    fitSize(512,400); syncToGradio(); redraw(); hideStatus();
                }
                lastSrc = null;
            }
        }, 300);

        /* periodic re-sync every 500 ms */
        setInterval(() => { syncToGradio(); }, 500);

        new ResizeObserver(() => {
            if (baseImg) { fitSize(baseImg.naturalWidth, baseImg.naturalHeight); redraw(); }
        }).observe(wrap);

        setMode('draw');
        fitSize(512,400); redraw();
        syncToGradio();
    }

    initCanvasBbox();
}
"""


with gr.Blocks() as demo:
    gr.Markdown("# **QIE-Object-Remover-Bbox**", elem_id="main-title")
    gr.Markdown(
        "Perform diverse image edits using a specialized [LoRA](https://huggingface.co/prithivMLmods/QIE-2511-Object-Remover-v2). Upload an image, draw red bounding boxes over the objects you want to remove, and click Remove Object."
        "Multiple boxes supported. Select, move, resize or delete individual boxes.",
        elem_id="subtitle",
    )

    with gr.Row():
        with gr.Column(scale=1):
            source_image = gr.Image(
                label="Upload Image",
                type="pil",
                height=350,
                elem_id="source-image-component",
            )

            gr.Markdown("# **Bbox Edit Controller**")
            gr.HTML(
                '<div class="bbox-hint">'
                "<b>Draw mode:</b> Click & drag to create red rectangles. "
                "<b>Select mode:</b> Click a box to select it → drag to <b>move</b>, "
                "drag handles to <b>resize</b>. Use <b>Delete Selected</b> to remove one box."
                "</div>"
            )

            gr.HTML(
                """
                <div id="bbox-draw-wrap">
                    <canvas id="bbox-draw-canvas" width="512" height="400"></canvas>
                    <div id="bbox-status"></div>
                    <div id="bbox-count"></div>
                </div>
                """
            )

            gr.HTML(
                """
                <div class="bbox-toolbar-section">
                    <span class="toolbar-label">🛠 Tools:</span>
                    <button id="tb-draw"   class="bbox-tb-draw active"  title="Draw new boxes">✏️ Draw</button>
                    <button id="tb-select" class="bbox-tb-select"       title="Select / move / resize">🔲 Select</button>
                    <div class="toolbar-divider"></div>
                    <span class="toolbar-label">Actions:</span>
                    <button id="tb-del"    class="bbox-tb-del"          title="Delete selected box">✕ Delete Selected</button>
                    <button id="tb-undo"   class="bbox-tb-undo"         title="Remove last box">↩ Undo</button>
                    <button id="tb-clear"  class="bbox-tb-clear"        title="Remove all boxes">🗑 Clear All</button>
                </div>
                """
            )

            gr.HTML('<div id="bbox-debug-count">⬜ No boxes drawn yet</div>')

            boxes_json = gr.Textbox(
                value="[]",
                visible=True,
                interactive=True,
                elem_id="boxes-json-input",
                label="boxes-json",
            )

            prompt = gr.Textbox(
                label="Prompt",
                value=DEFAULT_PROMPT,
                lines=2,
                info="Edit the prompt if needed",
            )

            run_btn = gr.Button("🗑️ Remove Object", variant="primary", size="lg")

        with gr.Column(scale=1):
            result = gr.Image(label="Output Image", height=449)
            preview = gr.Image(label="Input Sent to Model (with red boxes)", height=393)

            with gr.Accordion("Advanced Settings", open=True):
                seed = gr.Slider(label="Seed", minimum=0, maximum=MAX_SEED, step=1, value=0)
                randomize_seed = gr.Checkbox(label="Randomize Seed", value=True)
                with gr.Row():
                    guidance_scale = gr.Slider(label="Guidance Scale", minimum=1.0, maximum=10.0, step=0.1, value=1.0)
                    num_inference_steps = gr.Slider(label="Inference Steps", minimum=1, maximum=20, step=1, value=4)
                with gr.Row():
                    height_slider = gr.Slider(label="Height", minimum=256, maximum=2048, step=8, value=1024)
                    width_slider = gr.Slider(label="Width", minimum=256, maximum=2048, step=8, value=1024)

            with gr.Accordion("About", open=False):
                gr.Markdown(
                    "*QIE-Object-Remover-Bbox* by "
                    "[prithivMLmods](https://huggingface.co/prithivMLmods). "
                    "Adapter: [QIE-2511-Object-Remover-v2]"
                    "(https://huggingface.co/prithivMLmods/QIE-2511-Object-Remover-v2). "
                    "More adapters → [Qwen-Image-Edit-LoRAs]"
                    "(https://huggingface.co/models?other=base_model:adapter:Qwen/Qwen-Image-Edit-2509)."
                )

    demo.load(fn=None, js=bbox_drawer_js)

    run_btn.click(
        fn=infer_object_removal,
        inputs=[source_image, boxes_json, prompt, seed, randomize_seed,
                guidance_scale, num_inference_steps, height_slider, width_slider],
        outputs=[result, seed, preview],
        js="""(src, bj, p, s, rs, gs, nis, h, w) => {
            const boxes = window.__bboxBoxes || [];
            const json  = JSON.stringify(boxes);
            console.log('[BBox] submitting', boxes.length, 'boxes:', json);
            return [src, json, p, s, rs, gs, nis, h, w];
        }""",
    )

    source_image.upload(
        fn=update_dimensions_on_upload,
        inputs=[source_image],
        outputs=[width_slider, height_slider],
    )


if __name__ == "__main__":
    demo.launch(
        css=css, theme=purple_theme,
        mcp_server=True, ssr_mode=False, show_error=True
    )