# -*- coding: utf-8 -*-
# v3 短机版：外形 x −24.8~115.9，四角过孔跟顶盖角柱到 x −11 / 108.5
u"""**一整块底盖** BottomPlate_v3（2026-09-13 两件式外壳）。

= 175.0 × 110.8 × 2.4 平板（与顶盖外形齐平）+ 底板 PCB 的 4 根 Ø8 × 10 立柱（柱顶 Ø4.2 螺母孔）
  + 四角 4 个 Ø3.4 过孔（M3 从下往上拧进顶盖角柱底部的热熔螺母）。

零件本地坐标 = 装配坐标平移 z +10：板占本地 z −2.4~0，立柱 0~10；装配时 dz = −10
⇒ 板 z −12.4~−10（顶盖墙底落在 z=−10）、柱顶 z=0 = 底板 PCB 底面。

与 Tray_v9 相比：外形放大到整机尺寸；取消端板锁孔（端板已并进顶盖）；
取消南边两个 USB-C 缺口 —— 那是板面还在 z −2.4~0 时代的遗留，现在板面在 −10，
离 Type-C 插入通道底 −3.25 还有 6.75，缺口已无意义。

两种孔都画进拉伸草图一次成形（本机最可靠的路）：
  · 四角过孔画进 [1] 平板草图 ⇒ 通孔
  · 螺母孔画进 [2] 立柱草图 ⇒ 只穿立柱那 10 mm，底下平板没有孔 ⇒ 盲孔深 10
"""
import io
import os
import sys

sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8', write_through=True)
import pythoncom
import win32com.client as wc

DST = u'D:\\DCDC\\新建文件夹\\5blades\\BottomPlate_v3.SLDPRT'
EMPTY = wc.VARIANT(pythoncom.VT_DISPATCH, None)

X0, X1, Y0, Y1 = -24.8, 115.9, -4.055, 106.745
T = 2.4
CORNER_HOLES = [(-11.0, 3.345), (-11.0, 99.345), (108.5, 3.345), (108.5, 99.345)]   # = 顶盖角柱中心
R_THRU = 1.7
PCB_POSTS = [(4.0, 4.0), (94.0, 4.0), (4.0, 94.0), (94.0, 94.0)]
POST_R, POST_H, R_INS = 4.0, 10.0, 2.1


def prop(o, n):
    v = getattr(o, n)
    return v() if type(v).__name__ in ('method', 'function', 'builtin_function_or_method') else v


def D(x):
    return x if hasattr(x, '_oleobj_') else wc.Dispatch(x)


def P(*a):
    print(*a)


def M(v):
    return v / 1000.0


app = wc.GetActiveObject('SldWorks.Application')
for d in list(app.GetDocuments or []):
    try:
        t = prop(d, 'GetTitle') or ''
        if 'BOTTOMPLATE_V3' in t.upper():
            app.CloseDoc(t)
    except Exception:
        pass
tmpl = app.GetUserPreferenceStringValue(8)
app.NewDocument(tmpl, 0, 0.0, 0.0)
part = app.ActiveDoc
P(u'新建零件 %s' % prop(part, 'GetTitle'))
sm, fm = part.SketchManager, part.FeatureManager


def last_sketch():
    nm, f = None, prop(part, 'FirstFeature')
    while f:
        if prop(f, 'GetTypeName2') == 'ProfileFeature':
            nm = prop(f, 'Name')
        f = prop(f, 'GetNextFeature')
    return nm


def pick(name, typ):
    part.ClearSelection2(True)
    part.Extension.SelectByID2(name, typ, 0, 0, 0, False, 0, EMPTY, 0)
    return part.SelectionManager.GetSelectedObjectCount2(-1)


def boss(depth, rev):
    if pick(last_sketch(), 'SKETCH') != 1:
        raise RuntimeError(u'草图没选中')
    return fm.FeatureExtrusion3(True, False, rev, 0, 0, M(depth), 0.0,
                                False, False, False, False, 0.0, 0.0,
                                False, False, False, False, True, True, True, 0, 0.0, False)


def bbox():
    b = part.GetBodies2(0, True) or []
    if not b:
        return None
    xs = [[round(v * 1000, 3) for v in prop(D(x), 'GetBodyBox')] for x in b]
    return [min(v[0] for v in xs), min(v[1] for v in xs), min(v[2] for v in xs),
            max(v[3] for v in xs), max(v[4] for v in xs), max(v[5] for v in xs)]


def cyls():
    out = []
    b = part.GetBodies2(0, True) or []
    for f in prop(D(b[0]), 'GetFaces') if b else []:
        fc = D(f)
        s = prop(fc, 'GetSurface')
        if prop(s, 'IsCylinder'):
            fb = [v * 1000 for v in prop(fc, 'GetBox')]
            out.append((round(list(prop(s, 'CylinderParams'))[6] * 1000, 2), fb))
    return out


P(u'\n[1] 平板 %.1f × %.1f × %.1f + 四角 Ø%.1f 过孔' % (X1 - X0, Y1 - Y0, T, 2 * R_THRU))
pick(u'前视基准面', 'PLANE')
sm.InsertSketch(True)
sm.AddToDB = True
sm.CreateCornerRectangle(M(X0), M(Y0), 0.0, M(X1), M(Y1), 0.0)
for hx, hy in CORNER_HOLES:
    sm.CreateCircleByRadius(M(hx), M(hy), 0.0, M(R_THRU))
sm.AddToDB = False
sm.InsertSketch(True)
boss(T, True)
b = bbox()
P(u'  box %s' % b)
if b is None or abs(b[2] + T) > 0.02 or abs(b[5]) > 0.02:
    P(u'⛔ 停手'); sys.exit(2)

P(u'\n[2] 4 根 PCB 立柱 Ø%.0f × %.0f + 柱顶 Ø%.1f 螺母孔（盲孔）' % (2 * POST_R, POST_H, 2 * R_INS))
pick(u'前视基准面', 'PLANE')
sm.InsertSketch(True)
sm.AddToDB = True
for hx, hy in PCB_POSTS:
    sm.CreateCircleByRadius(M(hx), M(hy), 0.0, M(POST_R))
    sm.CreateCircleByRadius(M(hx), M(hy), 0.0, M(R_INS))
sm.AddToDB = False
sm.InsertSketch(True)
boss(POST_H, False)
b = bbox()
P(u'  box %s（期望 z −2.4~10）' % b)

cs = cyls()
h = {}
for r, _ in cs:
    h[r] = h.get(r, 0) + 1
P(u'  圆柱面直方图 %s（期望 {1.7: 4, 2.1: 4, 4.0: 4}）' % dict(sorted(h.items())))
ins = [fb for r, fb in cs if abs(r - R_INS) < 0.01]
thru = [fb for r, fb in cs if abs(r - R_THRU) < 0.01]
ok_ins = len(ins) == 4 and all(abs(fb[2]) < 0.05 and abs(fb[5] - POST_H) < 0.05 for fb in ins)
ok_thru = len(thru) == 4 and all(abs(fb[2] + T) < 0.05 and abs(fb[5]) < 0.05 for fb in thru)
P(u'  螺母孔 z 0~10（盲，底下平板无孔）%s；四角过孔 z −2.4~0（通）%s'
  % (u'✅' if ok_ins else u'⛔', u'✅' if ok_thru else u'⛔'))
if not (ok_ins and ok_thru and b and abs(b[5] - POST_H) < 0.02):
    P(u'⛔ 不存盘'); sys.exit(3)

e1 = wc.VARIANT(pythoncom.VT_BYREF | pythoncom.VT_I4, 0)
w1 = wc.VARIANT(pythoncom.VT_BYREF | pythoncom.VT_I4, 0)
part.Extension.SaveAs3(DST, 0, 1, EMPTY, EMPTY, e1, w1)
P(u'\n另存 err=%s 存在=%s %.0f KB'
  % (e1.value, os.path.exists(DST), os.path.getsize(DST) / 1024.0 if os.path.exists(DST) else 0))