import sys, os, string
print("If you run this code make sure that you are inside a test directory")
print("  with a folder called 'presets' and some sample '.milk' files.")
print("It will create a new file for each '.milk' file")
print("  with the new extension set to '.drop'")
print("REMOVE THE EXIT FROM THE PROGRAM TO CONFIRM THAT YOU KNOW WHAT YOU ARE DOING")
print("  Do NOT run this if you don't know anything about python.")
print("  The code only writes to the '.drop' extension, '.milk' is read only.")
print("  The program converts all of the subdirectories inside the 'presets' folder.")
# exit(0)  # <<< REMOVE THIS LINE OF CODE.
print("Processing presets folder and subdirectories...")

bStripExtraChars = True  # Strips "`" and ";" characters from each PROCESS line
sp = "    "   # four spaces for indent
proc = "PROCESS"
for dirname, dirnames, filenames in os.walk('presets'):
    for filename in filenames:
        if (filename.find(".milk") > 0):
            outfile = os.path.join(dirname, filename.replace(".milk",".drop"))
            fw = open(outfile, "w")
            fw.write("preset00:\n")
            ix = filename.find("-")
            fw.write(sp + "// Title:  " + filename[ix+1:].replace(".milk","").strip() + "\n")
            if (ix > 0):
                fw.write(sp + "// Author: " + filename[:ix].strip() + "\n")
                
            prevword0 = ""
            prevdigit = ""
            fr = open(os.path.join(dirname, filename))
            for line in fr:
                ix = line.find("=")
                bef = line[:ix].strip()
                aft = line[ix+1:].strip()
                
                if (bef.find("[preset") == 0 or bef == ""):    # Skip [preset00]
                    fw.write("\n")  # Blank line  
                else:
                    digit = ""
                    word0 = ""
                    word1 = ""
                    words = bef.split("_")
                    for word in words:
                        if (word.isdigit()):
                            digit = word
                        else:
                            if (digit == ""):
                                word0 += word + "_"
                            else:
                                word1 += word + "_"
                    
                    if (word1 != ""):            # Look for an exception.
                        ix = len(bef) - 1
                        ndigit = ""
                        while(bef[ix].isdigit() and ix > 0):
                            ndigit = bef[ix] + ndigit
                            ix -= 1
                        if (ndigit != ""):
                            nword0 = bef[:ix+1] + "_"
                            if (ndigit == "1" or nword0 + proc == prevword0):
                                digit = ndigit 
                                word0 = nword0
                                word1 = ""
                        
                    if (word1 != ""):
                        word0 = word0 + digit
                        aft = word1.strip("_") + "=" + aft
                    else:
                        word0 += proc  # PROCESS
                        if (digit != ""):
                            prevdigit = digit
                        
                        if (bStripExtraChars):       # Remove the two special characters.
                            aft = aft.strip("`").strip(";")

                    if (digit != ""):
                        if (prevword0 != word0 or prevdigit != digit):
                            prevword0 = word0
                            prevdigit = digit
                            fw.write(word0 + ":" + "\n")

                    ### Normal Output:
                    if (prevword0 == ""):
                        fw.write(sp + bef + "=" + aft + "\n") # prefix00: main section
                    else:
                        fw.write(sp + aft + "\n")             # all other sections
                        
                    ### Testing Output:
                    #if len(line) > 25:
                    #    line = line[:25].strip()
                    #if len(aft) > 25:
                    #    aft = aft[:25]
                    #if (prevword0 == ""):
                    #    fw.write("    " + bef + "=" + aft + "\t\t" + line.strip()) # prefix00: main section
                    #else:
                    #    fw.write("    " + aft + "\t\t" + line.strip()) # all other sections
                    
            fr.close()
            fw.close()
print("PROCSSING COMPLETE")