import os
import subprocess

import yaml
from dotenv import load_dotenv
from flask import (Flask, redirect, render_template, request,
                   send_from_directory, url_for)
from markdown import markdown
import yafg

from datetime import datetime
from prefix import PrefixMiddleware


load_dotenv()

PORT = os.environ.get("PORT", 3000)
DEBUG = os.environ.get("DEBUG", True)
PREFIX = os.environ.get("PREFIX", "")
REPO = os.environ.get("REPO", "https://git.xpub.nl/kamo/thesis.git")


def pull():
    print("Retrieving contents")
    subprocess.call(["sh", "update.sh", REPO])


def render():
    with open("index.yaml", "r") as i:
        index = yaml.safe_load(i)

    entries = []
    for entry in index:
        with open(os.path.join("contents", entry)) as e:
            html = markdown(
                e.read().replace("../img", "img"),
                extensions=[
                    "markdown.extensions.attr_list",
                    "markdown.extensions.codehilite",
                    "markdown.extensions.fenced_code",
                    "markdown.extensions.admonition",
                    "markdown.extensions.abbr",
                    yafg.YafgExtension(stripTitle=False)
                    ],
                # extension_configs={
                #     'markdown.extensions.codehilite': {
                #         'guess_lang': False,
                #     }
                # }
            )
            entries.append(html)
    
    last_update = datetime.now().strftime('%d-%m-%y %X')
    
    with open("index.html", "w") as r:
        r.write(render_template("render.html", contents=entries, last_update=last_update))

    return "rendered"


pull()
app = Flask(__name__)
app.wsgi_app = PrefixMiddleware(app.wsgi_app, prefix=PREFIX)


@app.route("/")
def home():
    return send_from_directory(app.root_path, "index.html")


@app.route("/img/<filename>")
def send_image(filename):
    return send_from_directory(os.path.join(app.root_path, "contents", "img"), filename)


@app.route("/update", methods=["GET", "POST"])
def update():
    if request.method == "POST":
        print("Rendering the homepage after weebhook request")
        pull()
        render()
    return "GET method not supported"


@app.route("/render")
def manual_render():
    print("Manual rendering the homepage")
    render()
    return redirect(url_for("home"))

@app.before_first_request
def prepare_page():
    print("Rendering the homepage")
    render()

app.run(port=PORT, debug=DEBUG)