{% extends 'cotisations/sidebar.html' %}
{% comment %}
Re2o est un logiciel d'administration développé initiallement au Rézo Metz. Il
se veut agnostique au réseau considéré, de manière à être installable en
quelques clics.

Copyright © 2017  Gabriel Détraz
Copyright © 2017  Lara Kermarec
Copyright © 2017  Augustin Lemesle

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
{% endcomment %}

{% load bootstrap3 %}
{% load staticfiles%}
{% load i18n %}

{% block title %}{% trans "Creation and editing of invoices" %}{% endblock %}

{% block content %}

{% if title %}
<h3>{{ title }}</h3>
{% else %}
<h3>{% trans "Buy" %}</h3>
{% endif %}
{% if max_balance %}
<h4>{% blocktrans %}Maximum allowed balance: {{ max_balance }} €{% endblocktrans %}</h4>
{% endif %}
{% if balance is not None %}
<p>
{% blocktrans %}Current balance: {{ balance }} €{% endblocktrans %}
</p>
{% endif %}
{% if discount_form %}
{% bootstrap_form_errors discount_form %}
{% endif %}

<form class="form" method="post">
    {% csrf_token %}
    {% bootstrap_form factureform %}
    {% if payment_method %}
    {% bootstrap_form payment_method %}
    <div id="paymentMethod"></div>
    {% endif %}
    {% if articlesformset %}
    <h3>{% trans "Articles" %}</h3>
    <div id="form_set" class="form-group">
        {{ articlesformset.management_form }}
        {% for articlesform in articlesformset.forms %}
        <div class='product_to_sell form-inline'>
            {% trans "Article" %} : &nbsp;
            {% bootstrap_form articlesform label_class='sr-only' %}
            &nbsp;
            <button class="btn btn-danger btn-sm" id="id_form-0-article-remove" type="button">
                <span class="fa fa-times"></span>
            </button>
        </div>
        {% endfor %}
    </div>
    <input class="btn btn-primary btn-block" role="button" value="{% trans "Add an extra article"%}" id="add_one">
    {% if discount_form %}
    <h3>{% trans "Discount" %}</h3>
    {% bootstrap_form discount_form %}
    {% endif %}
    <p>
    {% blocktrans %}Total price: <span id="total_price">0,00</span> €{% endblocktrans %}
    </p>
    {% endif %}
    {% bootstrap_button action_name button_type='submit' icon='ok' button_class='btn-success' %}
</form>

{% if articlesformset or payment_method%}
<script type="text/javascript">
{% if articlesformset %}
var prices = {};
{% for article in articlelist %}
prices[{{ article.id|escapejs }}] = "{{ article.prix }}";
{% endfor %}

var template = `Article : &nbsp;
{% bootstrap_form articlesformset.empty_form label_class='sr-only' %}
&nbsp;
<button class="btn btn-danger btn-sm"
id="id_form-__prefix__-article-remove" type="button">
<span class="fa fa-times"></span>
</button>`

function add_article(){
    // Index start at 0 => new_index = number of items
    var new_index =
        document.getElementsByClassName('product_to_sell').length;
    document.getElementById('id_form-TOTAL_FORMS').value ++;
    var new_article = document.createElement('div');
    new_article.className = 'product_to_sell form-inline';
    new_article.innerHTML = template.replace(/__prefix__/g, new_index);
    document.getElementById('form_set').appendChild(new_article);
    add_listenner_for_id(new_index);
}

function update_price(){
    var price = 0;
    var product_count =
        document.getElementsByClassName('product_to_sell').length;
    var article, article_price, quantity;
    for (i = 0; i < product_count; ++i){
        article = document.getElementById(
                'id_form-' + i.toString() + '-article').value;
        if (article == '') {
            continue;
        }
        article_price = parseFloat(prices[article].replace(',', '.'));
        quantity = document.getElementById(
                'id_form-' + i.toString() + '-quantity').value;
        price += article_price * quantity;
    }
    {% if discount_form %}
    var relative_discount = document.getElementById('id_is_relative').checked;
    var discount = document.getElementById('id_discount').value;
    if(relative_discount) {
        discount = discount/100 * price;
    }
    price -= discount;
    {% endif %}
    document.getElementById('total_price').innerHTML =
        price.toFixed(2).toString().replace('.', ',');
}

function add_listenner_for_id(i){
    document.getElementById('id_form-' + i.toString() + '-article')
        .addEventListener("change", update_price, true);
    document.getElementById('id_form-' + i.toString() + '-article')
        .addEventListener("onkeypress", update_price, true);
    document.getElementById('id_form-' + i.toString() + '-quantity')
        .addEventListener("change", update_price, true);
    document.getElementById('id_form-' + i.toString() + '-article-remove')
        .addEventListener("click", function(event) {
            var article = event.target.parentNode;
            article.parentNode.removeChild(article);
            document.getElementById('id_form-TOTAL_FORMS').value --;
            update_price();
        })
}

// Add events manager when DOM is fully loaded
document.addEventListener("DOMContentLoaded", function() {
    document.getElementById("add_one")
        .addEventListener("click", add_article, true);
    var product_count =
        document.getElementsByClassName('product_to_sell').length;
    for (i = 0; i < product_count; ++i){
        add_listenner_for_id(i);
    }
    document.getElementById('id_discount')
        .addEventListener('change', update_price, true);
    document.getElementById('id_is_relative')
        .addEventListener('click', update_price, true);
    update_price();
});
{% endif %}
{% if payment_method.templates %}
var TEMPLATES = [
    "",
{% for t in payment_method.templates %}
{% if t %}
`{% bootstrap_form t %}`,
{% else %}
"",
{% endif %}
{% endfor %}
];
function update_payment_method_form(){
    var method = document.getElementById('paymentMethodSelect').value;
    if(method==""){
        method=0;
    }
    else{
        method = Number(method);
        method += 1;
    }
    console.log(method);
    var html = TEMPLATES[method];

    document.getElementById('paymentMethod').innerHTML = html;
}
document.getElementById("paymentMethodSelect").addEventListener("change", update_payment_method_form);
{% endif %}
</script>
{% endif %}

{% endblock %}