{% extends 'base.html' %}
{% load static %}

{% block title %}Appointment Calendar{% endblock %}

{% block css %}
<link href="{% static 'plugins/@fullcalendar/main.min.css' %}" rel="stylesheet" />
{% endblock %}

{% block content %}
<div id="content" class="app-content">
    <div class="container">
        <div class="row justify-content-center">
            <div class="col-xl-12">
                <ul class="breadcrumb">
                    <li class="breadcrumb-item"><a href="{% url 'core:dashboard' %}">Dashboard</a></li>
                    <li class="breadcrumb-item"><a href="{% url 'appointments:appointment_list' %}">Appointments</a></li>
                    <li class="breadcrumb-item active">Calendar</li>
                </ul>
                
                <div class="d-flex align-items-center justify-content-between mb-3">
                    <h1 class="page-header mb-0">Appointment Calendar</h1>
                    <div>
                        <a href="{% url 'appointments:appointment_create' %}" class="btn btn-success">
                            <i class="fa fa-plus me-2"></i>New Appointment
                        </a>
                    </div>
                </div>
                
                <div class="row">
                    <div class="col-xl-9">
                        <div class="card">
                            <div class="card-body">
                                <div id="calendar"></div>
                            </div>
                        </div>
                    </div>
                    
                    <div class="col-xl-3">
                        <!-- Filters -->
                        <div class="card mb-4">
                            <div class="card-header">
                                <h4 class="card-title">Filters</h4>
                            </div>
                            <div class="card-body">
                                <form id="filterForm">
                                    <div class="mb-3">
                                        <label class="form-label">Provider</label>
                                        <select name="provider" class="form-select" id="providerFilter">
                                            <option value="">All Providers</option>
                                            {% for provider in providers %}
                                                <option value="{{ provider.id }}">{{ provider.first_name }} {{ provider.last_name }}</option>
                                            {% endfor %}
                                        </select>
                                    </div>
                                    <div class="mb-3">
                                        <label class="form-label">Department</label>
                                        <select name="department" class="form-select" id="departmentFilter">
                                            <option value="">All Departments</option>
                                            {% for dept in departments %}
                                                <option value="{{ dept.id }}">{{ dept.name }}</option>
                                            {% endfor %}
                                        </select>
                                    </div>
                                    <div class="mb-3">
                                        <label class="form-label">Status</label>
                                        <select name="status" class="form-select" id="statusFilter">
                                            <option value="">All Statuses</option>
                                            <option value="scheduled">Scheduled</option>
                                            <option value="confirmed">Confirmed</option>
                                            <option value="checked_in">Checked In</option>
                                            <option value="in_progress">In Progress</option>
                                            <option value="completed">Completed</option>
                                            <option value="cancelled">Cancelled</option>
                                            <option value="no_show">No Show</option>
                                        </select>
                                    </div>
                                    <button type="button" class="btn btn-primary" onclick="applyFilters()">
                                        <i class="fa fa-filter me-2"></i>Apply Filters
                                    </button>
                                </form>
                            </div>
                        </div>
                        
                        <!-- Legend -->
                        <div class="card mb-4">
                            <div class="card-header">
                                <h4 class="card-title">Status Legend</h4>
                            </div>
                            <div class="card-body">
                                <div class="d-flex align-items-center mb-2">
                                    <div class="w-20px h-20px bg-info rounded me-2"></div>
                                    <span>Scheduled</span>
                                </div>
                                <div class="d-flex align-items-center mb-2">
                                    <div class="w-20px h-20px bg-success rounded me-2"></div>
                                    <span>Confirmed</span>
                                </div>
                                <div class="d-flex align-items-center mb-2">
                                    <div class="w-20px h-20px bg-primary rounded me-2"></div>
                                    <span>Checked In</span>
                                </div>
                                <div class="d-flex align-items-center mb-2">
                                    <div class="w-20px h-20px bg-warning rounded me-2"></div>
                                    <span>In Progress</span>
                                </div>
                                <div class="d-flex align-items-center mb-2">
                                    <div class="w-20px h-20px bg-dark rounded me-2"></div>
                                    <span>Completed</span>
                                </div>
                                <div class="d-flex align-items-center mb-2">
                                    <div class="w-20px h-20px bg-danger rounded me-2"></div>
                                    <span>Cancelled</span>
                                </div>
                                <div class="d-flex align-items-center">
                                    <div class="w-20px h-20px bg-secondary rounded me-2"></div>
                                    <span>No Show</span>
                                </div>
                            </div>
                        </div>
                        
                        <!-- Today's Appointments -->
                        <div class="card">
                            <div class="card-header">
                                <h4 class="card-title">Today's Appointments</h4>
                            </div>
                            <div class="card-body">
                                {% for appointment in todays_appointments %}
                                <div class="d-flex align-items-center mb-3 p-2 border rounded">
                                    <div class="flex-grow-1">
                                        <div class="fw-bold">{{ appointment.appointment_time|time:"g:i A" }}</div>
                                        <div class="small">{{ appointment.patient.first_name }} {{ appointment.patient.last_name }}</div>
                                        <div class="small text-muted">{{ appointment.provider.first_name }} {{ appointment.provider.last_name }}</div>
                                    </div>
                                    <div>
                                        {% if appointment.status == 'scheduled' %}
                                            <span class="badge bg-info">Scheduled</span>
                                        {% elif appointment.status == 'confirmed' %}
                                            <span class="badge bg-success">Confirmed</span>
                                        {% elif appointment.status == 'checked_in' %}
                                            <span class="badge bg-primary">Checked In</span>
                                        {% elif appointment.status == 'in_progress' %}
                                            <span class="badge bg-warning">In Progress</span>
                                        {% elif appointment.status == 'completed' %}
                                            <span class="badge bg-dark">Completed</span>
                                        {% elif appointment.status == 'cancelled' %}
                                            <span class="badge bg-danger">Cancelled</span>
                                        {% elif appointment.status == 'no_show' %}
                                            <span class="badge bg-secondary">No Show</span>
                                        {% endif %}
                                    </div>
                                </div>
                                {% empty %}
                                <p class="text-muted text-center">No appointments today</p>
                                {% endfor %}
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Appointment Detail Modal -->
<div class="modal fade" id="appointmentModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">Appointment Details</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body" id="appointmentModalBody">
                <!-- Content will be loaded dynamically -->
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
                <a href="#" class="btn btn-primary" id="editAppointmentBtn">Edit</a>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block js %}
    <script src="{% static 'plugins/@fullcalendar/core/index.global.js' %}"></script>
    <script src="{% static 'plugins/@fullcalendar/bootstrap/index.global.js' %}"></script>
    <script src="{% static 'plugins/@fullcalendar/daygrid/index.global.js' %}"></script>
    <script src="{% static 'plugins/@fullcalendar/timegrid/index.global.js' %}"></script>
    <script src="{% static 'plugins/@fullcalendar/interaction/index.global.js' %}"></script>
    <script src="{% static 'plugins/@fullcalendar/list/index.global.js' %}"></script>
<script>
document.addEventListener('DOMContentLoaded', function() {
    var calendarEl = document.getElementById('calendar');
    var calendar = new FullCalendar.Calendar(calendarEl, {
        initialView: 'dayGridMonth',
        headerToolbar: {
            left: 'prev,next today',
            center: 'title',
            right: 'dayGridMonth,timeGridWeek,timeGridDay'
        },
        events: function(fetchInfo, successCallback, failureCallback) {
            // Get filter values
            var provider = document.getElementById('providerFilter').value;
            var department = document.getElementById('departmentFilter').value;
            var status = document.getElementById('statusFilter').value;
            
            // Build URL with filters
            var url = '{% url "appointments:calendar_appointments" %}?format=json';
            if (provider) url += '&provider=' + provider;
            if (department) url += '&department=' + department;
            if (status) url += '&status=' + status;
            url += '&start=' + fetchInfo.startStr + '&end=' + fetchInfo.endStr;
            
            fetch(url)
                .then(response => response.json())
                .then(data => {
                    var events = data.map(function(appointment) {
                        var color = getStatusColor(appointment.status);
                        return {
                            id: appointment.id,
                            title: appointment.patient_name + ' - ' + appointment.provider_name,
                            start: appointment.appointment_datetime,
                            backgroundColor: color,
                            borderColor: color,
                            extendedProps: appointment
                        };
                    });
                    successCallback(events);
                })
                .catch(error => {
                    console.error('Error loading appointments:', error);
                    failureCallback(error);
                });
        },
        eventClick: function(info) {
            showAppointmentDetails(info.event.extendedProps);
        }
    });
    
    calendar.render();
    
    // Store calendar reference for filter updates
    window.appointmentCalendar = calendar;
});

function getStatusColor(status) {
    var colors = {
        'scheduled': '#17a2b8',
        'confirmed': '#28a745',
        'checked_in': '#007bff',
        'in_progress': '#ffc107',
        'completed': '#343a40',
        'cancelled': '#dc3545',
        'no_show': '#6c757d'
    };
    return colors[status] || '#17a2b8';
}

function applyFilters() {
    if (window.appointmentCalendar) {
        window.appointmentCalendar.refetchEvents();
    }
}

function showAppointmentDetails(appointment) {
    var modalBody = document.getElementById('appointmentModalBody');
    var editBtn = document.getElementById('editAppointmentBtn');
    
    modalBody.innerHTML = `
        <div class="row mb-2">
            <div class="col-4"><strong>Patient:</strong></div>
            <div class="col-8">${appointment.patient_name}</div>
        </div>
        <div class="row mb-2">
            <div class="col-4"><strong>Provider:</strong></div>
            <div class="col-8">${appointment.provider_name}</div>
        </div>
        <div class="row mb-2">
            <div class="col-4"><strong>Department:</strong></div>
            <div class="col-8">${appointment.department_name}</div>
        </div>
        <div class="row mb-2">
            <div class="col-4"><strong>Date/Time:</strong></div>
            <div class="col-8">${new Date(appointment.appointment_datetime).toLocaleString()}</div>
        </div>
        <div class="row mb-2">
            <div class="col-4"><strong>Type:</strong></div>
            <div class="col-8">${appointment.appointment_type}</div>
        </div>
        <div class="row mb-2">
            <div class="col-4"><strong>Status:</strong></div>
            <div class="col-8"><span class="badge bg-${getStatusBadgeClass(appointment.status)}">${appointment.status}</span></div>
        </div>
        ${appointment.notes ? `
        <div class="row">
            <div class="col-4"><strong>Notes:</strong></div>
            <div class="col-8">${appointment.notes}</div>
        </div>
        ` : ''}
    `;
    
    editBtn.href = `/appointments/${appointment.id}/update/`;
    
    var modal = new bootstrap.Modal(document.getElementById('appointmentModal'));
    modal.show();
}

function getStatusBadgeClass(status) {
    var classes = {
        'scheduled': 'info',
        'confirmed': 'success',
        'checked_in': 'primary',
        'in_progress': 'warning',
        'completed': 'dark',
        'cancelled': 'danger',
        'no_show': 'secondary'
    };
    return classes[status] || 'info';
}
</script>
{% endblock %}