import base64
import json
import requests


def get_auth_header(token_id, token_secret):
    return {"Authorization": "Token {}:{}".format(token_id, token_secret)}


def get_page_export_html(page_id, wiki_url, token_id, token_secret):
    headers = {}
    headers.update(get_auth_header(token_id, token_secret))

    r = requests.get(wiki_url + "/api/pages/{}/export/html".format(page_id), headers=headers)

    return r.text


def get_attachments(wiki_url, token_id, token_secret):
    headers = {}
    headers.update(get_auth_header(token_id, token_secret))

    r = requests.get(wiki_url + "/api/attachments/", headers=headers)

    attachment_data = json.loads(r.text)['data']

    return attachment_data


def get_attachment_id(attachment_name, page_id, wiki_url, token_id, token_secret):
    attachment_data = get_attachments(wiki_url, token_id, token_secret)

    for attachment in attachment_data:
        if attachment['name'] == attachment_name and attachment['uploaded_to'] == page_id:
            return attachment['id']

    return None


def get_attachment_contents(attachment_id, wiki_url, token_id, token_secret):
    headers = {}
    headers.update(get_auth_header(token_id, token_secret))

    r = requests.get(wiki_url + "/api/attachments/{}".format(attachment_id), headers=headers)
    attachment_data_encoded = json.loads(r.text)['content']
    attachment_data_decoded = base64.b64decode(attachment_data_encoded)

    return attachment_data_decoded


def update_page(page_id, markdown, wiki_url, token_id, token_secret):
    headers = {}
    headers.update(get_auth_header(token_id, token_secret))

    data = {}
    data['markdown'] = markdown

    requests.put(wiki_url + "/api/pages/{}".format(page_id), data=data, headers=headers)