import os
import ujson
import flask
import random
import secrets

from dotenv import load_dotenv
from json.decoder import JSONDecodeError

load_dotenv()

def register(app):
    @app.route('/api/tos-verification', methods=['POST'])
    def tos_verification_api():
        if not flask.request.headers.get('Authorization') == os.getenv('TOS_VERIFICATION_KEY'):
            return 'Unauthorized', 401

        code = secrets.token_urlsafe(6)
        emoji = random.choice(open('config/emojis.txt', encoding='utf8').read())

        if not os.path.exists('data/tos.json'):
            open('data/tos.json', 'w', encoding='utf8').write('{}')

        try:
            data = ujson.load(open('data/tos.json', encoding='utf8'))
        except JSONDecodeError:
            data = {}

        data[code] = emoji
        ujson.dump(data, open('data/tos.json', 'w', encoding='utf8'))

        return {
            'code': code,
            'emoji': emoji
        }

    @app.route('/api/tos-verification/<code>', methods=['DELETE'])
    def tos_verification_api_delete(code):
        if not flask.request.headers.get('Authorization') == os.getenv('TOS_VERIFICATION_KEY'):
            return 'Unauthorized', 401

        data = ujson.load(open('data/tos.json', encoding='utf8'))
        del data[code]
        ujson.dump(data, open('data/tos.json', 'w', encoding='utf8'))

        return 'Removed.', 204

    @app.route('/legal/<path:subpath>')
    def legal_site(subpath):
        emoji = None
        if subpath == 'terms':
            emoji = ujson.load(open('data/tos.json', encoding='utf8')).get(flask.request.args.get('verify'))
            if emoji:
                emoji = emoji.encode('utf8')

        return flask.render_template(f'legal/{subpath}.html', verify=emoji)