# -*- coding: utf-8 -*-
u"""截 PCB 指定区域：python .claude/shot_pcb_region.py <out.png> <x0mm> <y0mm> <x1mm> <y1mm> [pcbUuid]
⚠️ zoomToRegion 的参数顺序是 (left, right, top, bottom)，不是 (x0,y0,x1,y1)；传错不报错只是不缩放。"""
import base64, io, os, sys
sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
from eda import run

MIL = 39.3701
out = sys.argv[1]
x0, y0, x1, y1 = [float(v) * MIL for v in sys.argv[2:6]]
uuid = sys.argv[6] if len(sys.argv) > 6 else '7e9415a16a909c51'
JS = u"""
const sleep=ms=>new Promise(r=>setTimeout(r,ms));
await eda.dmt_EditorControl.openDocument('%s');
await sleep(1800);
await eda.dmt_EditorControl.zoomToRegion(%f, %f, %f, %f);
await sleep(1800);
const img = await eda.dmt_EditorControl.getCurrentRenderedAreaImage();
const bytes = new Uint8Array(await new Response(img).arrayBuffer());
let s=''; for (let i=0;i<bytes.length;i++) s += String.fromCharCode(bytes[i]);
return {n: bytes.length, b64: btoa(s)};
""" % (uuid, x0, x1, y1, y0)    # left, right, top, bottom
r = run(JS, timeout=300)
assert r.get('success'), str(r)[:400]
data = base64.b64decode(r['result']['b64'])
io.open(out, 'wb').write(data)
print(out, len(data), 'bytes')