import json,numpy as np
from geom import D1,D2
R=json.load(open('results.json')); L=R['L_mm']; W=270.0; off=30.0
bolts=[(15,15),(135,15),(255,15),(15,135),(255,135),(15,255),(135,255),(255,255)]
def tomm(P): return [(off+x*L, W-(off+y*L)) for x,y in P]   # y flipped for SVG/DXF consistency (y down)
def svg(polys,circles,name,label):
    s=[f'<svg xmlns="http://www.w3.org/2000/svg" width="{W}mm" height="{W}mm" viewBox="0 0 {W} {W}">',
       f'<!-- {label}. Units mm. Cut lines red 0.1mm hairline. -->',
       f'<rect x="0" y="0" width="{W}" height="{W}" fill="none" stroke="red" stroke-width="0.1"/>']
    for P in polys: s.append('<polygon points="'+' '.join(f'{x:.3f},{y:.3f}' for x,y in P)+'" fill="none" stroke="red" stroke-width="0.1"/>')
    for (x,y,r) in circles: s.append(f'<circle cx="{x:.3f}" cy="{y:.3f}" r="{r}" fill="none" stroke="red" stroke-width="0.1"/>')
    s.append('</svg>'); open(f'out/cut/{name}.svg','w').write('\n'.join(s))
    d=['0','SECTION','2','ENTITIES']
    def line(a,b): d.extend(['0','LINE','8','CUT','10',f'{a[0]:.4f}','20',f'{W-a[1]:.4f}','11',f'{b[0]:.4f}','21',f'{W-b[1]:.4f}'])
    box=[(0,0),(W,0),(W,W),(0,W)]
    for P in [box]+polys:
        for i in range(len(P)): line(P[i],P[(i+1)%len(P)])
    for (x,y,r) in circles: d.extend(['0','CIRCLE','8','CUT','10',f'{x:.4f}','20',f'{W-y:.4f}','40',str(r)])
    d.extend(['0','ENDSEC','0','EOF']); open(f'out/cut/{name}.dxf','w').write('\n'.join(d)+'\n')
B=[(x,y,2.75) for x,y in bolts]
for dn,P in (('D1',D1),('D2',D2)):
    poly=tomm(P)
    svg([poly],B,f'{dn}_frame',f'{dn} frame: cut 2 for the membrane sandwich, or 2 in 3mm acrylic as the cavity spacer')
    pr=R['ports'][dn]; ports=[(off+pr[k][0]*L, W-(off+pr[k][1]*L), 2.0) for k in ('speaker','mic')]
    svg([],B+ports,f'{dn}_lid',f'{dn} cavity lid: 4mm speaker port then mic port, at drum coords {pr["speaker"]} and {pr["mic"]}')
svg([],B,'base','cavity base, cut 2 (one per drum)')
print(open('out/cut/D1_frame.svg').read()[:600])