from flask import Flask, jsonify, request, redirect, url_for
from flask_cors import CORS, cross_origin
import datetime
import frontmatter
from glob import glob

import os
from dotenv import load_dotenv
from pathlib import Path

dotenv_path = Path("/var/www/.mw-credentials")
load_dotenv(dotenv_path=dotenv_path)


# prefix to add /SOUPBOAT/ATLAS-API to all the routes
# and to leave the @app.route() decorator more clean


class PrefixMiddleware(object):
    def __init__(self, app, prefix=""):
        self.app = app
        self.prefix = prefix

    def __call__(self, environ, start_response):

        if environ["PATH_INFO"].startswith(self.prefix):
            environ["PATH_INFO"] = environ["PATH_INFO"][len(self.prefix) :]
            environ["SCRIPT_NAME"] = self.prefix
            return self.app(environ, start_response)
        else:
            start_response("404", [("Content-Type", "text/plain")])
            return ["This url does not belong to the app.".encode()]


base_url = "/soupboat/cookbook"

# create flask application
app = Flask(__name__)
CORS(app)

# register the middleware to prefix all the requests with our base_url
app.wsgi_app = PrefixMiddleware(app.wsgi_app, prefix=base_url)


# save the incoming data into a markdown file
# data is a dictionary with at least a 'title' key
def create_recipe(data):
    # create filename from the title
    # TODO: ensure safe filename
    slug = data["title"].replace(" ", "-").lower()
    today = datetime.datetime.now().strftime("%d-%m-%Y_%H-%M-%S")

    # create the list of properties from the incoming data, add the date
    recipe = {**data, "date": datetime.datetime.now()}
    post = frontmatter.Post("", **recipe)

    # save the data in a markdown file
    # TODO: print directly yml file instead of md?
    # since we are not really using the body of the md but just the yml frontmatter
    with open(f"recipes/{slug}_{today}.md", "w") as f:
        documentation = frontmatter.dumps(post)
        f.write(documentation)
        print(f"{data['title']} - saved in the archive")


# read the files from the recipes folder and return them in a list
def get_recipes():
    recipes = []
    paths = glob("recipes/*.md")
    for path in paths:
        with open(path, "r") as f:
            meta, content = frontmatter.parse(f.read())
            recipes.append(meta)
    return recipes

# post the recipe in the wiki
def update_wiki(recipe):
    import mwclient

    site = mwclient.Site('pzwiki.wdka.nl', path='/mw-mediadesign/')
    site.login(
    username=os.environ.get('MW_BOT'),
    password=os.environ.get('MW_KEY')
    )
    page = site.pages['Week Six: Diffractive reading methods']
    
    text = page.text()
    steps = '\n'.join([f"# {log}" for log in recipe["logs"]])

    # PROV TEMPLATE 
    content = f"""
    === {recipe['title']} ===
    ''{recipe['description']}'' 
    <br>
    '''Nature of the input'''
    <br>
    {recipe['nature']}
    <br>
    ''' Process Log'''
    <br>
    {steps}
    '''Who'''
    <br>
    {recipe['who']}
    """

    # delete multiline indentation
    text += '\n'.join([line.strip() for line in content.splitlines()])
    page.edit(text, f'Added a new recipe! {recipe["title"]}')



# TODO: get data from client
@app.route("/", methods=["GET", "POST"])
def home():
    if request.method == "POST":
        create_recipe(request.json)
        update_wiki(request.json)
        redirect(url_for("home"))

    return redirect("https://issue.xpub.nl/18/")


# return the list of recipes in JSON format
@app.route("/get")
def get():
    recipes = get_recipes()
    return jsonify(recipes)


# TODO: set another port and setup nginx
app.run(port=3145)