{% extends "base.html" %}
{% block title %}Historique de {{ meter.name }} — GMAO{% endblock %}

{% block content %}
<div class="container py-4">
    <div class="d-flex justify-content-between align-items-center mb-4">
        <h2><i class="bi bi-graph-up"></i> Historique : {{ meter.name }}</h2>
        <a href="{{ url_for('equipments.detail', id=meter.equipment_id) }}" class="btn btn-outline-secondary">
            <i class="bi bi-arrow-left"></i> Retour à l'équipement
        </a>
    </div>

    <div class="card shadow-sm">
        <div class="card-body">
            <div class="table-responsive">
                <table class="table table-sm table-hover align-middle">
                    <thead class="table-light">
                        <tr>
                            <th>Date</th>
                            <th>Valeur</th>
                            <th>Consommation</th>
                            <th>Commentaire</th>
                            <th>Utilisateur</th>
                        </tr>
                    </thead>
                    <tbody>
                        {% set prev_reading = None %}
                        {% for r in readings %}
                        <tr>
                            <td>{{ r.date|datetime_fmt }}</td>
                            <td><strong>{{ r.value }} {{ meter.unit }}</strong></td>
                            <td>
                                {% if prev_reading %}
                                    <span class="badge bg-info">{{ (r.value - prev_reading.value)|abs }} {{ meter.unit }}</span>
                                {% else %}
                                    <span class="text-muted small">Dernier relevé</span>
                                {% endif %}
                            </td>
                            <td>{{ r.comment or '—' }}</td>
                            <td>{{ r.user.full_name }}</td>
                        </tr>
                        {% set prev_reading = r %}
                        {% endfor %}
                    </tbody>
                </table>
            </div>
        </div>
    </div>
</div>
{% endblock %}