{% extends 'layouts/base.html' %}
{% load i18n %}

{% block title %}{% trans "Complaints Registry" %} - PX360{% endblock %}

{% block extra_css %}
<style>
    .status-resolved { background-color: #dcfce7; color: #166534; }
    .status-pending { background-color: #fef9c3; color: #854d0e; }
    .status-investigation { background-color: #e0f2fe; color: #075985; }
    .status-escalated { background-color: #fee2e2; color: #991b1b; }
    .filter-btn.active { background-color: #005696; color: white; }
    .filter-btn:not(.active) { background-color: transparent; border: 1px solid #e2e8f0; color: #64748b; }
    .filter-btn:not(.active):hover { background-color: #f8fafc; }
</style>
{% endblock %}

{% block content %}
<!-- Header -->
<header class="mb-6">
    <div class="flex justify-between items-start">
        <div>
            <h1 class="text-2xl font-bold text-navy">{% trans "Complaints Registry" %}</h1>
            <p class="text-sm text-slate mt-1">{% trans "Manage and monitor patient feedback in real-time" %}</p>
        </div>
        <div class="flex items-center gap-3">
            <div class="relative group">
                <i data-lucide="search" class="w-4 h-4 absolute left-3 top-1/2 -translate-y-1/2 text-slate group-focus-within:text-navy"></i>
                <input type="text" id="searchInput" placeholder="{% trans 'Search ID, Name or Dept...' %}"
                       class="pl-10 pr-4 py-2.5 bg-slate-100 border-transparent border focus:border-navy/30 focus:bg-white rounded-xl text-sm outline-none w-64 transition-all">
            </div>
            {% if user.is_px_admin or user.is_hospital_admin %}
            <a href="{% url 'complaints:complaint_create' %}" class="bg-navy text-white px-5 py-2.5 rounded-xl text-sm font-bold shadow-lg shadow-navy/20 hover:bg-blue flex items-center gap-2 transition">
                <i data-lucide="plus" class="w-4 h-4"></i> {% trans "New Case" %}
            </a>
            <a href="{% url 'core:public_submit_landing' %}" class="bg-white text-navy border-2 border-navy/30 px-5 py-2.5 rounded-xl text-sm font-bold hover:bg-navy hover:text-white flex items-center gap-2 transition" target="_blank">
                <i data-lucide="external-link" class="w-4 h-4"></i> {% trans "Public Form" %}
            </a>
            {% endif %}
        </div>
    </div>
</header>

<!-- Statistics Cards -->
<div class="grid grid-cols-4 gap-6 mb-6">
    <div class="bg-white p-4 rounded-2xl border shadow-sm flex items-center gap-4">
        <div class="p-3 bg-blue/10 rounded-xl">
            <i data-lucide="layers" class="text-blue w-5 h-5"></i>
        </div>
        <div>
            <p class="text-[10px] font-bold text-slate uppercase tracking-wider">{% trans "Total Received" %}</p>
            <p class="text-xl font-black text-navy leading-tight">{{ stats.total }}</p>
        </div>
    </div>
    <div class="bg-white p-4 rounded-2xl border shadow-sm flex items-center gap-4">
        <div class="p-3 bg-green-50 rounded-xl">
            <i data-lucide="check-circle" class="text-green-600 w-5 h-5"></i>
        </div>
        <div>
            <p class="text-[10px] font-bold text-slate uppercase tracking-wider">{% trans "Resolved" %}</p>
            <p class="text-xl font-black text-navy leading-tight">{{ stats.resolved }} <span class="text-xs text-green-600">({{ stats.resolved_percentage|floatformat:1 }}%)</span></p>
        </div>
    </div>
    <div class="bg-white p-4 rounded-2xl border shadow-sm flex items-center gap-4">
        <div class="p-3 bg-yellow-50 rounded-xl">
            <i data-lucide="clock" class="text-yellow-600 w-5 h-5"></i>
        </div>
        <div>
            <p class="text-[10px] font-bold text-slate uppercase tracking-wider">{% trans "Pending" %}</p>
            <p class="text-xl font-black text-navy leading-tight">{{ stats.pending }}</p>
        </div>
    </div>
    <div class="bg-white p-4 rounded-2xl border shadow-sm flex items-center gap-4">
        <div class="p-3 bg-red-50 rounded-xl">
            <i data-lucide="alert-triangle" class="text-red-500 w-5 h-5"></i>
        </div>
        <div>
            <p class="text-[10px] font-bold text-slate uppercase tracking-wider">{% trans "TAT Alert" %}</p>
            <p class="text-xl font-black text-navy leading-tight">{{ stats.overdue }} <span class="text-[10px] font-normal text-slate">{% trans "Over 72h" %}</span></p>
        </div>
    </div>
</div>

<!-- Filter Tabs -->
<div class="bg-white px-6 py-4 rounded-t-2xl border-b flex items-center justify-between">
    <div class="flex items-center gap-3">
        <a href="?" class="filter-btn px-4 py-1.5 rounded-full text-xs font-semibold transition {% if not status_filter %}active{% endif %}">
            {% trans "All Cases" %}
        </a>
        <a href="?status=open" class="filter-btn px-4 py-1.5 rounded-full text-xs font-semibold transition {% if status_filter == 'open' %}active{% endif %}">
            {% trans "Pending" %}
        </a>
        <a href="?status=escalated" class="filter-btn px-4 py-1.5 rounded-full text-xs font-semibold transition {% if status_filter == 'escalated' %}active{% endif %}">
            {% trans "Escalated" %}
        </a>
        <a href="?status=resolved" class="filter-btn px-4 py-1.5 rounded-full text-xs font-semibold transition {% if status_filter == 'resolved' %}active{% endif %}">
            {% trans "Resolved" %}
        </a>
        <div class="h-4 w-[1px] bg-slate-200 mx-2"></div>
        <button onclick="toggleFilters()" class="flex items-center gap-2 text-xs font-bold text-blue uppercase tracking-tight hover:underline">
            <i data-lucide="filter" class="w-3 h-3"></i> {% trans "Advanced Filters" %}
        </button>
    </div>
    <p class="text-[10px] font-bold text-slate uppercase">
        {% trans "Showing:" %} <span class="text-navy">{{ complaints.start_index|default:0 }}-{{ complaints.end_index|default:0 }} {% trans "of" %} {{ complaints.paginator.count|default:0 }}</span>
    </p>
</div>

<!-- Advanced Filters (Hidden by default) -->
<div id="advancedFilters" class="hidden bg-slate-50 px-6 py-4 border-b">
    <form method="get" class="flex flex-wrap gap-4">
        {% if status_filter %}
        <input type="hidden" name="status" value="{{ status_filter }}">
        {% endif %}
        <div class="flex items-center gap-2">
            <label class="text-xs font-bold text-slate uppercase">{% trans "Priority" %}</label>
            <select name="priority" class="px-3 py-1.5 bg-white border rounded-lg text-xs">
                <option value="">{% trans "All" %}</option>
                <option value="low" {% if priority_filter == 'low' %}selected{% endif %}>{% trans "Low" %}</option>
                <option value="medium" {% if priority_filter == 'medium' %}selected{% endif %}>{% trans "Medium" %}</option>
                <option value="high" {% if priority_filter == 'high' %}selected{% endif %}>{% trans "High" %}</option>
                <option value="critical" {% if priority_filter == 'critical' %}selected{% endif %}>{% trans "Critical" %}</option>
            </select>
        </div>
        <div class="flex items-center gap-2">
            <label class="text-xs font-bold text-slate uppercase">{% trans "Department" %}</label>
            <select name="department" class="px-3 py-1.5 bg-white border rounded-lg text-xs">
                <option value="">{% trans "All" %}</option>
                {% for dept in departments %}
                <option value="{{ dept.id }}" {% if department_filter == dept.id|stringformat:'s' %}selected{% endif %}>{{ dept.name }}</option>
                {% endfor %}
            </select>
        </div>
        <button type="submit" class="px-4 py-1.5 bg-navy text-white rounded-lg text-xs font-bold">{% trans "Apply" %}</button>
        <a href="?" class="px-4 py-1.5 border rounded-lg text-xs font-semibold text-slate hover:bg-white">{% trans "Clear" %}</a>
    </form>
</div>

<!-- Complaints Table -->
<div class="bg-white rounded-b-2xl shadow-sm border overflow-hidden">
    <table class="w-full text-left border-collapse">
        <thead class="bg-slate-50 border-b uppercase text-[10px] font-bold text-slate tracking-wider">
            <tr>
                <th class="px-6 py-4">{% trans "Complaint ID" %}</th>
                <th class="px-6 py-4">{% trans "Patient Name" %}</th>
                <th class="px-6 py-4">{% trans "Description" %}</th>
                <th class="px-6 py-4">{% trans "Source" %}</th>
                <th class="px-6 py-4">{% trans "Department" %}</th>
                <th class="px-6 py-4">{% trans "Status" %}</th>
                <th class="px-6 py-4 text-center">{% trans "Priority" %}</th>
                <th class="px-6 py-4 text-right">{% trans "Actions" %}</th>
            </tr>
        </thead>
        <tbody class="text-sm divide-y divide-slate-100">
            {% for complaint in complaints.object_list %}
            <tr class="hover:bg-light/30 transition-colors cursor-pointer group" onclick="window.location.href='{% url 'complaints:complaint_detail' complaint.pk %}'">
                <td class="px-6 py-4 font-bold text-navy">{{ complaint.reference_number }}</td>
                <td class="px-6 py-4">
                    <div class="font-semibold text-slate-800">{{ complaint.patient.get_full_name|default:complaint.contact_name }}</div>
                    {% if complaint.patient %}
                    <div class="text-[10px] text-slate font-medium">{% trans "MRN:" %} {{ complaint.patient.mrn|default:"-" }}</div>
                    {% endif %}
                </td>
                <td class="px-6 py-4 max-w-xs" onclick="event.stopPropagation()">
                    <button onclick="showDescriptionModal('{{ complaint.reference_number|escapejs }}', `{{ complaint.description|escapejs }}`)" 
                            class="text-slate-600 text-xs truncate text-left hover:text-navy hover:underline cursor-pointer flex items-center gap-1">
                        {{ complaint.description|truncatewords:10 }}
                        <i data-lucide="expand" class="w-3 h-3 flex-shrink-0 opacity-50"></i>
                    </button>
                </td>
                <td class="px-6 py-4">
                    {% if complaint.source %}
                    <span class="bg-slate-100 px-2 py-0.5 rounded text-[10px] font-bold text-slate-600">{{ complaint.source.name_en }}</span>
                    {% else %}
                    <span class="bg-slate-100 px-2 py-0.5 rounded text-[10px] font-bold text-slate-600">{{ complaint.get_complaint_source_type_display }}</span>
                    {% endif %}
                </td>
                <td class="px-6 py-4 text-slate-600">{{ complaint.department.name|default:"-" }}</td>
                <td class="px-6 py-4">
                    {% if complaint.status == 'open' %}
                    <span class="status-pending px-2.5 py-1 rounded-full text-[10px] font-bold uppercase">{{ complaint.get_status_display }}</span>
                    {% elif complaint.status == 'in_progress' %}
                    <span class="status-investigation px-2.5 py-1 rounded-full text-[10px] font-bold uppercase">{% trans "Investigating" %}</span>
                    {% elif complaint.status == 'escalated' %}
                    <span class="status-escalated px-2.5 py-1 rounded-full text-[10px] font-bold uppercase">{{ complaint.get_status_display }}</span>
                    {% elif complaint.status == 'resolved' or complaint.status == 'closed' %}
                    <span class="status-resolved px-2.5 py-1 rounded-full text-[10px] font-bold uppercase">{{ complaint.get_status_display }}</span>
                    {% else %}
                    <span class="bg-slate-100 px-2.5 py-1 rounded-full text-[10px] font-bold uppercase text-slate-600">{{ complaint.get_status_display }}</span>
                    {% endif %}
                </td>
                <td class="px-6 py-4">
                    <div class="flex justify-center">
                        {% if complaint.priority == 'critical' %}
                        <span class="w-2 h-2 rounded-full bg-red-500 animate-pulse" title="{% trans 'Critical' %}"></span>
                        {% elif complaint.priority == 'high' %}
                        <span class="w-2 h-2 rounded-full bg-red-500" title="{% trans 'High' %}"></span>
                        {% elif complaint.priority == 'medium' %}
                        <span class="w-2 h-2 rounded-full bg-orange-500" title="{% trans 'Medium' %}"></span>
                        {% else %}
                        <span class="w-2 h-2 rounded-full bg-green-500" title="{% trans 'Low' %}"></span>
                        {% endif %}
                    </div>
                </td>
                <td class="px-6 py-4 text-right">
                    <div class="flex justify-end gap-2 opacity-0 group-hover:opacity-100 transition-opacity">
                        <a href="{% url 'complaints:complaint_detail' complaint.pk %}" class="p-1.5 text-navy hover:bg-white rounded border border-transparent hover:border-slate-200" title="{% trans 'View' %}">
                            <i data-lucide="eye" class="w-4 h-4"></i>
                        </a>
                        {% if can_edit %}
                        <a href="{% url 'complaints:complaint_assign' complaint.pk %}" class="p-1.5 text-blue hover:bg-white rounded border border-transparent hover:border-slate-200" title="{% trans 'Assign' %}">
                            <i data-lucide="user-plus" class="w-4 h-4"></i>
                        </a>
                        {% endif %}
                    </div>
                </td>
            </tr>
            {% empty %}
            <tr>
                <td colspan="8" class="px-6 py-12 text-center">
                    <i data-lucide="inbox" class="w-12 h-12 mx-auto text-slate-300 mb-3"></i>
                    <p class="text-slate">{% trans "No complaints found" %}</p>
                </td>
            </tr>
            {% endfor %}
        </tbody>
    </table>
    
    <!-- Pagination -->
    {% if complaints.has_other_pages %}
    <div class="bg-slate-50 px-8 py-4 flex items-center justify-between border-t">
        <div class="flex items-center gap-4">
            <span class="text-xs text-slate font-medium">
                {% trans "Showing" %} <span class="font-bold text-navy">{{ complaints.start_index }}-{{ complaints.end_index }}</span> {% trans "of" %} <span class="font-bold text-navy">{{ complaints.paginator.count }}</span> {% trans "entries" %}
            </span>
            <!-- Page Size Selector -->
            <form method="get" class="flex items-center gap-2" id="pageSizeForm">
                {% for key, value in request.GET.items %}
                    {% if key != 'page_size' and key != 'page' %}
                    <input type="hidden" name="{{ key }}" value="{{ value }}">
                    {% endif %}
                {% endfor %}
                <label class="text-xs text-slate">{% trans "Show" %}</label>
                <select name="page_size" onchange="document.getElementById('pageSizeForm').submit()" class="px-2 py-1 bg-white border border-slate-200 rounded-lg text-xs focus:outline-none focus:ring-2 focus:ring-navy">
                    <option value="10" {% if complaints.paginator.per_page == 10 %}selected{% endif %}>10</option>
                    <option value="25" {% if complaints.paginator.per_page == 25 %}selected{% endif %}>25</option>
                    <option value="50" {% if complaints.paginator.per_page == 50 %}selected{% endif %}>50</option>
                    <option value="100" {% if complaints.paginator.per_page == 100 %}selected{% endif %}>100</option>
                </select>
            </form>
        </div>
        <div class="flex gap-2">
            {% if complaints.has_previous %}
            <a href="?page={{ complaints.previous_page_number }}{% for key, value in request.GET.items %}{% if key != 'page' %}&{{ key }}={{ value }}{% endif %}{% endfor %}" 
               class="w-8 h-8 flex items-center justify-center rounded-lg border bg-white hover:bg-slate-50 transition">
                <i data-lucide="chevron-left" class="w-4 h-4 text-slate"></i>
            </a>
            {% else %}
            <span class="w-8 h-8 flex items-center justify-center rounded-lg border bg-slate-100 text-slate-300 cursor-not-allowed">
                <i data-lucide="chevron-left" class="w-4 h-4"></i>
            </span>
            {% endif %}
            
            {% for num in complaints.paginator.page_range %}
                {% if num == complaints.number %}
                <span class="w-8 h-8 flex items-center justify-center rounded-lg bg-navy text-white text-xs font-bold">{{ num }}</span>
                {% elif num > complaints.number|add:'-3' and num < complaints.number|add:'3' %}
                <a href="?page={{ num }}{% for key, value in request.GET.items %}{% if key != 'page' %}&{{ key }}={{ value }}{% endif %}{% endfor %}" 
                   class="w-8 h-8 flex items-center justify-center rounded-lg border bg-white hover:bg-slate-50 text-xs font-bold text-slate transition">
                    {{ num }}
                </a>
                {% elif num == 1 or num == complaints.paginator.num_pages %}
                <a href="?page={{ num }}{% for key, value in request.GET.items %}{% if key != 'page' %}&{{ key }}={{ value }}{% endif %}{% endfor %}" 
                   class="w-8 h-8 flex items-center justify-center rounded-lg border bg-white hover:bg-slate-50 text-xs font-bold text-slate transition">
                    {{ num }}
                </a>
                {% elif num == complaints.number|add:'-3' or num == complaints.number|add:'3' %}
                <span class="w-8 h-8 flex items-center justify-center text-xs text-slate">...</span>
                {% endif %}
            {% endfor %}
            
            {% if complaints.has_next %}
            <a href="?page={{ complaints.next_page_number }}{% for key, value in request.GET.items %}{% if key != 'page' %}&{{ key }}={{ value }}{% endif %}{% endfor %}" 
               class="w-8 h-8 flex items-center justify-center rounded-lg border bg-white hover:bg-slate-50 transition">
                <i data-lucide="chevron-right" class="w-4 h-4 text-slate"></i>
            </a>
            {% else %}
            <span class="w-8 h-8 flex items-center justify-center rounded-lg border bg-slate-100 text-slate-300 cursor-not-allowed">
                <i data-lucide="chevron-right" class="w-4 h-4"></i>
            </span>
            {% endif %}
        </div>
    </div>
    {% endif %}
</div>

<!-- Description Modal -->
<div id="descriptionModal" class="fixed inset-0 z-50 hidden items-center justify-center p-4" onclick="closeDescriptionModal(event)">
    <div class="absolute inset-0 bg-black/50 backdrop-blur-sm"></div>
    <div class="relative bg-white rounded-2xl shadow-2xl max-w-2xl w-full max-h-[80vh] overflow-hidden" onclick="event.stopPropagation()">
        <div class="flex items-center justify-between px-6 py-4 border-b bg-slate-50">
            <div class="flex items-center gap-3">
                <div class="p-2 bg-navy/10 rounded-lg">
                    <i data-lucide="file-text" class="w-5 h-5 text-navy"></i>
                </div>
                <div>
                    <h3 class="font-bold text-navy">{% trans "Complaint Description" %}</h3>
                    <p id="modalReferenceNumber" class="text-xs text-slate font-mono"></p>
                </div>
            </div>
            <button onclick="closeDescriptionModal()" class="p-2 hover:bg-slate-200 rounded-lg transition">
                <i data-lucide="x" class="w-5 h-5 text-slate-500"></i>
            </button>
        </div>
        <div class="p-6 overflow-y-auto max-h-[60vh]">
            <p id="modalDescription" class="text-slate-700 text-sm leading-relaxed whitespace-pre-wrap"></p>
        </div>
        <div class="px-6 py-4 border-t bg-slate-50 flex justify-end">
            <button onclick="closeDescriptionModal()" class="px-4 py-2 bg-navy text-white rounded-lg text-sm font-bold hover:bg-blue transition">
                {% trans "Close" %}
            </button>
        </div>
    </div>
</div>

<script>
function toggleFilters() {
    const filters = document.getElementById('advancedFilters');
    filters.classList.toggle('hidden');
}

// Description Modal Functions
function showDescriptionModal(referenceNumber, description) {
    const modal = document.getElementById('descriptionModal');
    const refNumber = document.getElementById('modalReferenceNumber');
    const descEl = document.getElementById('modalDescription');
    
    refNumber.textContent = referenceNumber;
    descEl.textContent = description || '{% trans "No description available" %}';
    
    modal.classList.remove('hidden');
    modal.classList.add('flex');
    document.body.style.overflow = 'hidden';
    
    // Re-initialize lucide icons for the modal
    if (typeof lucide !== 'undefined') {
        lucide.createIcons();
    }
}

function closeDescriptionModal(event) {
    if (event && event.target !== event.currentTarget) return;
    
    const modal = document.getElementById('descriptionModal');
    modal.classList.add('hidden');
    modal.classList.remove('flex');
    document.body.style.overflow = '';
}

// Close modal on Escape key
document.addEventListener('keydown', function(e) {
    if (e.key === 'Escape') {
        closeDescriptionModal();
    }
});

// Search functionality
document.getElementById('searchInput')?.addEventListener('keypress', function(e) {
    if (e.key === 'Enter') {
        const value = this.value;
        if (value) {
            window.location.href = '?search=' + encodeURIComponent(value);
        }
    }
});
</script>
{% endblock %}