import rhinoscriptsyntax as rs
import random as ran
import flipped_classroom_lib as fc
reload(fc)

rs.DeleteObjects(rs.AllObjects())

###############################################################
# Your Panel functions...
###############################################################
def my_panel(points,scale):
    #rs.AddSrfPt(points)
    (P0,P1,P2,P3)= points
    rs.AddLine(P0,P2)
    d_cen1 = rs.VectorDivide(rs.VectorAdd(P0,P2),2)
    rs.AddPoint(d_cen1)
    rs.AddLine(P1,P3)
    d_cen2 = rs.VectorDivide(rs.VectorAdd(P1,P3),2)
    rs.AddPoint(d_cen2)
    center_pt = rs.VectorDivide(rs.VectorAdd(d_cen1,d_cen2),2)
    rs.AddPoint(center_pt)
    if not(rs.PointCompare (d_cen1,d_cen2)):
        rs.AddLine(d_cen1,d_cen2)
    vec1 = rs.VectorSubtract(P0,center_pt)
    vec2 = rs.VectorSubtract(center_pt,P3)
    normal = rs.VectorCrossProduct(vec1,vec2)
    u_normal= rs.VectorUnitize(normal)
    su_normal= rs.VectorScale(u_normal, scale)
    normal_pt= rs.VectorAdd(center_pt,su_normal)
    rs.AddPoint(normal_pt)
    rs.AddLine(center_pt, normal_pt)
    rs.AddSrfPt([P0,normal_pt,P1])
    rs.AddSrfPt([P1,normal_pt,P2])
    rs.AddSrfPt([P2,normal_pt,P3])
    rs.AddSrfPt([P3,normal_pt,P0])


def my_panel_frame(points, scale, offset):
    (P0,P1,P2,P3) = points              # name points in quad list
    pline = rs.AddPolyline([P0,P1,P2,P3,P0]) # make closed pline
    d_cen1 = rs.VectorDivide(rs.VectorAdd(P0,P2),2) # calculate center of first diagonal
    d_cen2 = rs.VectorDivide(rs.VectorAdd(P1,P3),2) # calculate center of second diagonal
    center_pt = rs.VectorDivide(rs.VectorAdd(d_cen1,d_cen2),2) # calculate center between diagonal center points
    #prepare vectors for cross product to get normal
    vec1 = rs.VectorSubtract(P0, center_pt)
    vec2 = rs.VectorSubtract(center_pt, P3)
    normal = rs.VectorCrossProduct(vec1, vec2)  #calculate face normal at true center point
    u_normal = rs.VectorUnitize(normal) #unitize this normal vector (length 1)
    su_normal = rs.VectorScale(u_normal, scale) #scale unitized normal vector
    normal_pt = rs.VectorAdd(center_pt, su_normal) # find point at tip of normal vector
    rs.AddPoint(normal_pt)              # put point normal_pt
    rs.AddLine(center_pt, normal_pt)    # line to show centered normal vector
    
    #off_l = rs.OffsetCurve(pline, center_pt, offset, u_normal)
    off_l = rs.ScaleObject(pline, center_pt, [scale,scale,scale], copy=True) 
    s_points = rs.CurvePoints(off_l)
    #create front of frame
    rs.AddSrfPt([P0, s_points[0],s_points[1], P1])
    rs.AddSrfPt([P1, s_points[1],s_points[2], P2])
    rs.AddSrfPt([P2, s_points[2],s_points[3], P3])
    rs.AddSrfPt([P3, s_points[3],s_points[0], P0])
    off_l_s = rs.CopyObject(off_l, su_normal)
    ss_points = rs.CurvePoints(off_l_s)
    rs.AddSrfPt([ss_points[0], s_points[0],s_points[1], ss_points[1]])
    rs.AddSrfPt([ss_points[1], s_points[1],s_points[2], ss_points[2]])
    rs.AddSrfPt([ss_points[2], s_points[2],s_points[3], ss_points[3]])
    rs.AddSrfPt([ss_points[3], s_points[3],s_points[0], ss_points[0]])

def my_panel_grid(points, split):
    (P0,P1,P2,P3) = points              
    L_L = rs.AddLine(P0,P3)
    R_L = rs.AddLine(P1,P2)
    v_lines = [L_L, R_L]
    edge_pts =[]
    for e in v_lines:
        rs.RebuildCurve(e, 1, split)
        edge_pts.extend(rs.CurvePoints(e))
    grid_pts = []
    for i in range(split):
        hline = rs.AddLine(edge_pts[i], edge_pts[i+split])
        rs.RebuildCurve(hline, 1, split)
        grid_pts.extend(rs.CurvePoints(hline))
    for i,p in enumerate(grid_pts):
        rs.AddPoint(p)
        #cmd = "-Dot {} {} _Enter ".format(i,p)
        #rs.Command(cmd, False)


rs.EnableRedraw(False)

quad = [[0,0,0], [10,0,0], [10,0,12], [0,0,12]]
quad = [[0,0,0], [10,4,0], [10,4,12], [0,0,12]]
quad = [[0,0,0], [10,0,0], [10,2,12], [0,2,12]]
quad = [[0,0,0], [10,0,0], [8,2,12], [2,2,12]]
quad = [[0,0,0], [10,2,0], [10,-2,12], [0,2,10]]
     
result_list = fc.PEF_single_face(quad)
#result_list = fc.PEF_face(7, 10, 8.0, 5.0, 30)
#result_list = fc.PEF_face_w(7, 10, 8.0, 5.0, 30, 2.0)
result_list = fc.PEF_pantheon()

p_list = result_list[0]  # Pointlist, contains single points
e_list = result_list[1]  # Horizontal Edgelist, contains lists with two points
ve_list = result_list[2] # Vertical Edgelist, contains lists with two points
f_list = result_list[3]  # Facelist, contans lists with four points (quads)
zcol = result_list[4]    # number of levels of faces
xcol = result_list[5]    # number of faces in one level
print "there are " + str(len(p_list)) + " points and " + str(len(f_list)) + " faces on " + str(zcol) + " levels, "+str(xcol)+" per level!"


if 0:
    for i in range(zcol):
        for j in range(xcol):
            points = f_list[i*xcol+j]
            #scale = ran.uniform(0.5, 8.5)
            my_panel_grid(f_list[i*xcol+j],8) #0.9, 1.5)
            #rs.AddSrfPt(f_list[i*xcol+j])


#############################################################################
# DOTS to explain the lists
#############################################################################
if 0:  # put a dot on each point and create a Point
    for i,pt in enumerate(p_list):
        rs.AddPoint(pt)
        cmd = "-Dot {} {} _Enter ".format(i,pt)
        rs.Command(cmd, False)

if 0:  # put a dot on each horizontal edge and create a line
    for i,e in enumerate(e_list):
        rs.AddLine(e[0],e[1])
        cmd = "-Dot {} {} _Enter ".format(i,e[0])
        rs.Command(cmd, False)

if 0:  # put a dot on each vertical edge and create a line
    for i,ve in enumerate(ve_list):
        rs.AddLine(ve[0],ve[1])
        cmd = "-Dot {} {} _Enter ".format(i,ve[0])
        rs.Command(cmd, False)

if 0:  # put a dot on each face and create a surface
    for i, quad in enumerate(f_list):
        rs.AddSrfPt(quad)
        cmd = "-Dot {} {} _Enter ".format(i,quad[0])
        rs.Command(cmd, False)

#############################################################################
# Some experiments with the lists
#############################################################################
if 0:
    for i, quad in enumerate(f_list):
        if i%2:
            rs.AddSrfPt(quad)

if 0:
    for i in range(zcol):
        for j in range(xcol):
            if (i+j)%2:
                rs.AddSrfPt(f_list[i*xcol+j])

if 0: # last row in pantheon ceiling is flat
    for i in range(zcol):
        for j in range(xcol):
            if i != zcol-1:
                points = f_list[i*xcol+j]
                scale = ran.uniform(0.5,8.5)
                my_panel(f_list[i*xcol+j], scale)
            else:
                rs.AddSrfPt(f_list[i*xcol+j])

if 1:
    for i in range(zcol):
        for j in range(xcol):
            points = f_list[i*xcol+j]
            (P0,P1,P2,P3) = points
            cpoints=[P0,P1,P2,P3,P0]
            plinea = rs.AddCurve(cpoints,2)
            plineb = rs.AddCurve(cpoints,3)
            #loftsurf = rs.AddLoftSrf([plinea, plineb])
            rs.Command("-_Loft selid {} selid {} _Enter _Enter _Enter".format(plinea, plineb), False)
            loftsurf = rs.FirstObject()
            rs.OffsetSurface(loftsurf, .2, both_sides=True, create_solid=True) 


if 1:
    for line in e_list:
        mline = rs.AddLine(line[0], line[1])
        rs.AddPipe(mline, 0, 0.3, cap=2)
    for line in ve_list:
        mline = rs.AddLine(line[0], line[1])
        rs.AddPipe(mline, 0, 0.2, cap=2)
   
rs.EnableRedraw(True)