import subprocess
import json
from pathlib import Path

class Pandoc:
    def __init__(self, path=None):
        if path:
            self.pandoc = path + "/pandoc"
        else:
            self.pandoc = "pandoc"

    def Command(self, From, To, Input):
        return subprocess.run(
                [self.pandoc, "-f", From, "-t", To],
                input=Input,
                text=True,
                capture_output=True)

    def Convert(self, text):
        command = self.Command("gfm", "html", text)
        return command.stdout

    def ConvertToJson(self, text):
        command = self.Command("gfm", "json", text)
        return json.loads(command.stdout)

    def ConvertFromJson(self, text):
        command = self.Command("json", "html", json.dumps(text));
        return command.stdout

class Attr:
    def __init__(self, id, classes=None, keyvalue=None):
        self.id = id

        if classes is None:
            self.classes = []
        else:
            self.classes = classes
        
        if keyvalue is None:
            self.keyvalue = []
        else:
            self.keyvalue = keyvalue

    def toJson(self):
        return [
                self.id,
                self.classes,
                self.keyvalue
                ]

class Div:
    def __init__(self, attr, content):
        self.attr = attr
        self.content = content

    def toJson(self):
        return {
                't' : 'Div',
                'c' : [
                    self.attr.toJson(),
                    self.content
                    ]
                }

class Span:
    def __init__(self, attr, content):
        self.attr = attr
        self.content = content

    def toJson(self):
        return {
                't' : 'Span',
                'c' : [
                    self.attr.toJson(),
                    self.content
                    ]
                }

class Header:
    def __init__(self, attr, num, content):
        self.attr = attr
        self.num = num
        self.content = content

    def toJson(self):
        return {
                't' : 'Header',
                'c' : [
                    self.num,
                    self.attr.toJson(),
                    self.content
                    ]
                }

class Plain:
    def __init__(self, content):
        self.content = content

    def toJson(self):
        return {
                't' : 'Plain',
                'c' : [
                    self.content
                ]
            }

class Inline:
    def __init__(self, t, content):
        self.t = t
        self.content = content

    def toJson(self):
        return {
                't' : self.t,
                'c' : self.content
                }

class PString:
    def __init__(self, content):
        self.content = content

    def toJson(self):
        return {
                't' : 'Str',
                'c' : self.content
                }