import sys
import re
import json
import os
import subprocess
import pathlib
import time
from xml.dom import minidom

# an affront to god
def combine(base_path, dark_path, medium_path, light_path, bright_path, tmp_output_path, output_path):
    base = open(base_path, "r", encoding="utf-8").read()
    dark = open(dark_path, "r", encoding="utf-8").read()
    medium = open(medium_path, "r", encoding="utf-8").read()
    light = open(light_path, "r", encoding="utf-8").read()
    bright = open(bright_path, "r", encoding="utf-8").read()
    
    base_data = re.search("<g.*", base, flags=re.DOTALL)[0][:-7]
    dark_data = re.search("<g.*", dark, flags=re.DOTALL)[0][:-7]
    medium_data = re.search("<g.*", medium, flags=re.DOTALL)[0][:-7]
    light_data = re.search("<g.*", light, flags=re.DOTALL)[0][:-7]
    bright_data = bright.replace("</metadata>", "</metadata>" + base_data + "\n"   + dark_data + "\n" + medium_data + "\n" + light_data)

    with open(tmp_output_path, "w", encoding="utf-8") as f:
        f.write(bright_data)

    return subprocess.Popen([INKSCAPE, "--without-gui", "--export-plain-svg", "--export-area-drawing", "--export-filename=" + output_path, tmp_output_path], shell=False)

configdir = pathlib.Path(__file__).parent
configpath = configdir.joinpath("config.json")
config = json.load(open(configpath, encoding="utf-8"))

workdir = pathlib.Path(config["work-directory"])

print(sys.argv)
sourcedir = workdir.joinpath(sys.argv[1])
macrodir = pathlib.Path(config["macrovision-directory"])

print(sourcedir, macrodir) 
side_strings = []

POTRACE = config["potrace"]
INKSCAPE = config["inkscape"]

output = {}

with open(sourcedir.joinpath("data.json"), "r", encoding="utf-8") as file:
    all_data = json.load(file)

group_name = all_data["name"]
category = all_data["kind"]

outputdir = macrodir.joinpath("media").joinpath(category).joinpath(group_name)
os.makedirs(outputdir, exist_ok=True)

for data in all_data["forms"]:
    name = data["name"]
    for view in data["views"]:
        view_name = view["name"]
        input = sourcedir.joinpath(name + "-" + view_name + ".png").__str__()
        input_noline_raw = sourcedir.joinpath(name + "-" + view_name + "-" + "noline.png").__str__()
        result = outputdir.joinpath(name + "-" + view_name + ".svg").__str__()
        print(result)
        if os.path.exists(result):
            if os.path.getmtime(input) < os.path.getmtime(result):
                print("Skipping ", input)
                continue
            else:
                os.unlink(result)
    
        input_base = sourcedir.joinpath(name + "-" + view_name + "-base.bmp").__str__()
        input_dark = sourcedir.joinpath(name + "-" + view_name + "-dark.bmp").__str__()
        input_medium = sourcedir.joinpath(name + "-" + view_name + "-medium.bmp").__str__()
        input_light = sourcedir.joinpath(name + "-" + view_name + "-light.bmp").__str__()
        input_bright = sourcedir.joinpath(name + "-" + view_name + "-bright.bmp").__str__()
        input_noline = sourcedir.joinpath(name + "-" + view_name + "-noline.bmp").__str__()

        procs = []

        procs.append(subprocess.Popen(["magick", "convert", input, "-channel", "RGB", "-evaluate", "set", "0", "-channel", "RGB", "-modulate", "200,0", "-background", "#FFFFFF", "-flatten", input_base], shell=False))
        procs.append(subprocess.Popen(["magick", "convert", input, "-channel", "GB", "-evaluate", "set", "0", "-channel", "RGB", "-modulate", "200,0", "-background", "#FFFFFF", "-negate", "-flatten", input_dark], shell=False))
        procs.append(subprocess.Popen(["magick", "convert", input, "-channel", "RB", "-evaluate", "set", "0", "-channel", "RGB", "-modulate", "200,0", "-background", "#FFFFFF", "-negate", "-flatten", input_medium], shell=False))
        procs.append(subprocess.Popen(["magick", "convert", input, "-channel", "RG", "-evaluate", "set", "0", "-channel", "RGB", "-modulate", "200,0", "-background", "#FFFFFF", "-negate", "-flatten", input_light], shell=False))
        procs.append(subprocess.Popen(["magick", "convert", input, "-fill", "black", "-fuzz", "10%", "+opaque", "#FFFFFF", "-channel", "RGB", "-modulate", "200,0", "-background", "#FFFFFF", "-negate", "-flatten", input_bright], shell=False))

        # to correct for extra height from lines
        procs.append(subprocess.Popen(["magick", "convert", input_noline_raw, "-channel", "RGB", "-evaluate", "set", "0", "-background", "#FFFFFF", "-flatten", input_noline], shell=False))
        
        [proc.wait() for proc in procs]

        output_base = sourcedir.joinpath(name + "-" + view_name + "-base.svg").__str__()
        output_dark = sourcedir.joinpath(name + "-" + view_name + "-dark.svg").__str__()
        output_medium = sourcedir.joinpath(name + "-" + view_name + "-medium.svg").__str__()
        output_light = sourcedir.joinpath(name + "-" + view_name + "-light.svg").__str__()
        output_bright = sourcedir.joinpath(name + "-" + view_name + "-bright.svg").__str__()
        output_noline = sourcedir.joinpath(name + "-" + view_name + "-noline.svg").__str__()

        procs = []

        alpha = str(all_data["trace_alpha"])
        procs.append(subprocess.Popen([POTRACE, input_base, "-b", "svg", "-a", alpha, "-o", output_base], shell=False))
        procs.append(subprocess.Popen([POTRACE, input_dark, "-b", "svg", "-a", alpha, "-C", "#1a1a1a", "-o", output_dark], shell=False))
        procs.append(subprocess.Popen([POTRACE, input_medium, "-b", "svg", "-a", alpha, "-C", "#333333", "-o", output_medium], shell=False))
        procs.append(subprocess.Popen([POTRACE, input_light, "-b", "svg", "-a", alpha, "-C", "#4d4d4d", "-o", output_light], shell=False))
        procs.append(subprocess.Popen([POTRACE, input_bright, "-b", "svg", "-a", alpha, "-C", "#666666", "-o", output_bright], shell=False))
        procs.append(subprocess.Popen([POTRACE, input_noline, "-b", "svg", "-a", alpha, "-C", "#333333", "-o", output_noline], shell=False))

        [proc.wait() for proc in procs]

        procs = []

        noline_result = sourcedir.joinpath(name + "-" + view_name + "-noline_processed.svg").__str__()

        result_tmp = outputdir.joinpath(name + "-" + view_name + "-tmp.svg").__str__()
        noline_result_tmp = sourcedir.joinpath(name + "-" + view_name + "-noline_processed-tmp.svg").__str__()
        procs.append(combine(output_base, output_dark, output_medium, output_light, output_bright, result_tmp, result))
        procs.append(combine(output_noline, output_noline, output_noline, output_noline, output_noline, noline_result_tmp, noline_result))

        [proc.wait() for proc in procs]

        # we now learn how much height was added by the lineart!

        # for some reason, the files aren't appearing for a moment after Inkscape quits

        while True:
            if os.path.exists(result) and os.path.exists(noline_result):
                break
            time.sleep(0.1)

        os.unlink(result_tmp)
        os.unlink(noline_result_tmp)

        original_xml = minidom.parse(open(result))
        noline_xml = minidom.parse(open(noline_result))


        original_height = float(original_xml.childNodes[0].attributes["height"].value[:-2])
        noline_height = float(noline_xml.childNodes[0].attributes["height"].value[:-2])

        delta = original_height - noline_height

        height = original_height
        bottom = height - (height - delta / 2)
        top = height - delta / 2

        view["extra"] = (height - bottom) / (top - bottom)
        view["bottom"] = bottom / height

        os.unlink(noline_result)


# now we add the data

file_path = macrodir.joinpath("presets").joinpath(category + ".js")

with open(file_path, "r", encoding="utf-8") as file:
    lines = file.readlines()

found = False
with open(file_path, "w", encoding="utf-8") as file:
    for line in lines:
        if f"/* ***{group_name}*** */" in line:
            found = True
            file.write(f"    /* ***{group_name}*** */ results.push(makeModel({json.dumps(all_data)}));\n")
        elif "/* ***INSERT HERE*** */" in line and not found:
            file.write(f"    /* ***{group_name}*** */ results.push(makeModel({json.dumps(all_data)}));\n")
            file.write(line)
        else:
            file.write(line)