"""
Alexandre B A Villares
https://abav.lugaralgum.com/sketch-a-day

This script generates dbn_letterss.py

Converting some of Maeda's Design by Number
dbnletters.dbn code -> Processing
"""

def convert_dbn_source_letters(file_path):
    with open("dbn_letters.py", 'w') as out:
        out.write('"""\n')
        out.write("Alexandre B A Villares\n")
        out.write("https://abav.lugaralgum.com/sketch-a-day\n")
        out.write("This code was generated by dbn_generate_letters.py\n")
        out.write("Converting some of Maeda's Design by Number\n")
        out.write('dbnletters.dbn code -> Processing\n"""\n')
        out.write("dbn_letter = {}  # Dict of functions\n")
        out.write("\n")
    with open(file_path, "r") as f:
        dbn_source = f.readlines()
    inside_block = False
    command_name = ""
    command_block = []
    for ln in dbn_source:
        if ln.count("command"):
            command_name = ln[14:15]
        elif ln.count("{"):
            inside_block = True
        elif ln.count("}"):
            if command_name in "ABCDEFGHIJKLMNOPQRSTUVWXYZ":
                def_dbn_letter(command_block, command_name)
            command_block = []  # empty block
            inside_block = False
        elif inside_block:
            command_block.append(ln.lstrip())

def def_dbn_letter(dbn_block, key_):
    p_block = []
    for dbn_line in dbn_block:
        if dbn_line:
            # for debug
            p_block.append("    if debug_poly: stroke(random(256),200, 200)\n")
            p_block.append("    " + dbn_line
                           .replace("line ", "line(")
                           .replace(" ", ",")
                           .replace("//", "#")
                           .strip()
                           + ")\n")
    with open("dbn_letters.py", 'a') as out:
        out.write("# " + key_ + "\n")
        out.write("def dbn_letter" + key_ + "(h, v, debug_poly=False):\n")
        out.write("    pushMatrix()\n")
        out.write("    scale(1, -1)\n")
        for py_processing_line in p_block:
            out.write(py_processing_line)
        out.write("    popMatrix()\n")
        out.write("dbn_letter['" + key_ + "'] = dbn_letter" + key_ + "\n")
        out.write("dbn_letter[" + str(ord(key_) - 64)
                  + "] = dbn_letter" + key_ + "\n")