import json
from os.path import join

from wtforms import DateField, Form, StringField, TextAreaField

from yird.settings import Settings


class NewPostForm(Form):
    title = StringField('Title')
    slug = StringField('Slug')
    date = DateField('Date')
    content = TextAreaField('Content')


class Post:
    def __init__(self, id, title, slug, date, content='', changed=True):
        self.id = id
        self.title = title
        self.slug = slug
        self.date = date
        self.content = content
        self.changed = changed
        self.settings = Settings()

    def metadata(self):
        return {
            "id": self.id,
            "title": self.title,
            "slug": self.slug,
            "date": str(self.date),
            "changed": self.changed
        }

    def load_metadata(self):
        with open(join(self.settings.POSTS_PATH, self.id + '.json')) as f:
            return json.loads(f.read())

    def write(self):
        with open(join(self.settings.POSTS_PATH, self.id + '.md'), 'w') as f:
            f.write(self.content)
        with open(join(self.settings.POSTS_PATH, self.id + '.json'), 'w') as f:
            f.write(json.dumps(self.metadata()))