{% extends "base.html" %}
{% load i18n %}
{% load static %}
{% load mention_tags %}

{% block head %}
<style>
    .discussion-item {
        transition: all 0.15s ease-in-out;
        border-left: 4px solid transparent;
    }
    .discussion-item.has-unread {
        background-color: #f4f7ff;
        border-left-color: var(--brand-color, #2f3e8b);
    }
    .discussion-item:hover {
        background-color: #edf2fc;
        text-decoration: none;
    }
    .avatar-discussion {
        width: 44px;
        height: 44px;
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    }
    .avatar-group {
        display: inline-flex;
        align-items: center;
    }
    .avatar-group .avatar-circle {
        width: 26px;
        height: 26px;
        border-radius: 50%;
        font-size: 0.7rem;
        font-weight: 600;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border: 2px solid #ffffff;
        margin-left: -6px;
        transition: transform 0.15s ease, z-index 0.15s ease;
        box-shadow: 0 1px 2px rgba(0,0,0,0.08);
        cursor: default;
    }
    .avatar-group .avatar-circle:first-child {
        margin-left: 0;
    }
    .avatar-group .avatar-circle:hover {
        transform: translateY(-2px) scale(1.15);
        z-index: 5;
    }
    .avatar-group .avatar-more {
        background-color: #f1f5f9;
        color: #475569;
        font-size: 0.68rem;
        font-weight: 700;
    }
</style>
{% endblock %}

{% block content %}
<div class="container-fluid py-4">

    <div class="d-flex justify-content-between align-items-center mb-4">
        <h1 class="h3 mb-0">
            <i class="bi bi-chat-dots me-2 text-primary"></i>{% translate "Discussions" %}
        </h1>
        <div class="d-flex gap-2">
            <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#newDiscussionModal">
                <i class="bi bi-chat-plus-fill me-1.5"></i>{% translate "Nouvelle discussion" %}
            </button>
            <a href="{% url 'notifications:inbox' %}" class="btn btn-outline-secondary">
                <i class="bi bi-bell me-1"></i>{% translate "Notifications" %}
            </a>
            <a href="{% url 'notifications:settings' %}" class="btn btn-outline-secondary" title="{% translate 'Paramètres' %}">
                <i class="bi bi-gear me-1"></i>{% translate "Paramètres" %}
            </a>
        </div>
    </div>

    {% if not items %}
    <div class="card border-0 shadow-sm rounded-3">
        <div class="card-body text-center py-5 text-muted">
            <i class="bi bi-chat-square fs-1 d-block mb-3 text-primary opacity-50"></i>
            <p class="mb-0">{% translate "Vous n'avez encore aucune discussion." %}</p>
        </div>
    </div>
    {% else %}
    <div class="card border-0 shadow-sm rounded-3 overflow-hidden">
        <div class="list-group list-group-flush">
            {% for item in items %}
            <a href="{% url 'notifications:discussion_detail' item.discussion.pk %}"
               class="list-group-item list-group-item-action discussion-item px-3 px-md-4 py-3 {% if item.unread_count %}has-unread{% endif %}">
                <div class="d-flex align-items-start gap-3">
                    <!-- Icône typée -->
                    {% with type_info=item.discussion.type_info %}
                    <div class="avatar-discussion {{ type_info.bg_class }} {{ type_info.text_class }} border {{ type_info.border_class }}" title="{{ type_info.label }}">
                        <i class="bi {{ type_info.icon }} fs-5"></i>
                    </div>
                    {% endwith %}

                    <!-- Contenu -->
                    <div class="flex-grow-1 min-width-0">
                        <div class="d-flex justify-content-between align-items-start gap-2 mb-1">
                            <div class="d-flex align-items-center gap-2 flex-wrap min-width-0">
                                <span class="fw-semibold text-dark text-truncate" style="font-size: 0.975rem;">
                                    {{ item.discussion.title|default:item.discussion }}
                                </span>
                                {% if item.discussion.object_label and item.discussion.object_label != item.discussion.title %}
                                <span class="badge bg-light text-secondary border small rounded-pill px-2 py-0.5">
                                    <i class="bi bi-link-45deg me-0.5"></i>{{ item.discussion.object_label }}
                                </span>
                                {% endif %}
                                {% if item.discussion.is_closed %}
                                <span class="badge bg-secondary-subtle text-secondary small rounded-pill px-2 py-0.5">
                                    <i class="bi bi-lock-fill me-0.5"></i>{% translate "Clôturée" %}
                                </span>
                                {% endif %}
                            </div>
                            <span class="text-muted small ms-2 text-nowrap d-flex align-items-center gap-1">
                                <i class="bi bi-clock opacity-75"></i>
                                {{ item.discussion.updated_at|date:"d/m/Y H:i" }}
                            </span>
                        </div>

                        <!-- Aperçu du message nettoyé des tags @[Nom](u:id) -->
                        {% if item.last_message %}
                        <p class="mb-2 small text-muted text-truncate mt-0.5" style="max-width: 780px;">
                            <strong class="text-secondary">{{ item.last_message.author.get_full_name|default:item.last_message.author.username }}</strong> :
                            <span class="text-dark opacity-75">{{ item.last_message.content|clean_mentions_preview|truncatechars:140 }}</span>
                        </p>
                        {% else %}
                        <p class="mb-2 small text-muted mt-0.5 fst-italic">{% translate "Aucun message encore." %}</p>
                        {% endif %}

                        <!-- Pied de ligne : Participants en avatars empilés & compteur non lu -->
                        <div class="d-flex align-items-center justify-content-between flex-wrap gap-2 pt-1">
                            <div class="d-flex align-items-center gap-2">
                                <span class="text-muted small d-none d-sm-inline" style="font-size: 0.78rem;">
                                    <i class="bi bi-people me-1 opacity-75"></i>{% translate "Participants" %} :
                                </span>
                                <div class="avatar-group">
                                    {% for p in item.discussion.participants.all|slice:":6" %}
                                    <div class="avatar-circle"
                                         style="background-color: {{ p|avatar_bg_color }}; color: {{ p|avatar_text_color }};"
                                         data-bs-toggle="tooltip"
                                         data-bs-placement="top"
                                         title="{{ p.get_full_name|default:p.username }}">
                                        {{ p|user_initials }}
                                    </div>
                                    {% endfor %}
                                    {% if item.discussion.participants.count > 6 %}
                                    <div class="avatar-circle avatar-more"
                                         data-bs-toggle="tooltip"
                                         data-bs-placement="top"
                                         title="{{ item.discussion.participants.count }} {% translate 'participants au total' %}">
                                        +{{ item.discussion.participants.count|add:"-6" }}
                                    </div>
                                    {% endif %}
                                </div>
                            </div>

                            <!-- Badge non-lus -->
                            {% if item.unread_count %}
                            <span class="badge rounded-pill bg-primary px-2.5 py-1 small fw-semibold shadow-sm" style="background-color: var(--brand-color, #2f3e8b) !important;">
                                {{ item.unread_count }} {% translate "non lu(s)" %}
                            </span>
                            {% endif %}
                        </div>
                    </div>
                </div>
            </a>
            {% endfor %}
        </div>
    </div>
    {% endif %}

</div>
{% include "notifications/_new_discussion_modal.html" %}
{% endblock content %}

{% block script %}
<script>
document.addEventListener('DOMContentLoaded', () => {
    const tooltipTriggerList = document.querySelectorAll('[data-bs-toggle="tooltip"]');
    [...tooltipTriggerList].map(tooltipTriggerEl => new bootstrap.Tooltip(tooltipTriggerEl));
});
</script>
{% endblock script %}