from flask import Blueprint, redirect, render_template, request, url_for
from datetime import datetime
import json
import os

bp = Blueprint('module', __name__, url_prefix="/")


@bp.route('/', methods=['GET', 'POST'])
def module():
    if request.method == 'POST':
        preset = {}
        for key in request.form.keys():
            preset[key] = request.form.get(key)
        name = preset.get('name', 'preset')
        date = datetime.now().strftime('%Y%m%d%H%M%S')
        filename = f"{name}~{date}.json"

        with open(os.path.join(os.environ.get('MODULES'), filename), 'w') as f:
            f.write(json.dumps(preset))

        return redirect(url_for('module.module'))

    modules = [os.path.splitext(filename)[0]
               for filename in os.listdir(os.environ.get('MODULES'))]

    return render_template('module.html', modules=modules)


@bp.route('/cables')
def cables():
    return render_template('cables.html')