templates/emergency_map.html

{% extends "base.html" %}

{% block head %}
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" />
<style>
    .container-fluid {
        padding: 0;
        height: 100vh;
        display: flex;
    }
    
    #emergencyMap { 
        height: 100vh;
        width: 70%;
        position: relative;
    }
    
    .control-panel {
        width: 30%;
        height: 100vh;
        background: rgba(26, 26, 46, 0.95);
        padding: 20px;
        overflow-y: auto;
        display: flex;
        flex-direction: column;
        gap: 15px;
    }
    
    .control-section {
        background: rgba(255, 255, 255, 0.05);
        border-radius: var(--border-radius);
        padding: 15px;
        margin-bottom: 15px;
    }
    
    .section-title {
        color: var(--text-light);
        font-size: 1.1rem;
        margin-bottom: 10px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    
    .emergency-button {
        background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
        color: white;
        border: none;
        padding: 12px 20px;
        border-radius: var(--border-radius);
        font-size: 1rem;
        font-weight: bold;
        cursor: pointer;
        transition: var(--transition);
        width: 100%;
        margin-bottom: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
    }
    
    .emergency-button:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 8px rgba(255, 77, 109, 0.3);
    }
    
    .emergency-button.secondary {
        background: rgba(255, 255, 255, 0.1);
    }
    
    .emergency-description {
        width: 100%;
        padding: 10px;
        margin-top: 10px;
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: var(--border-radius);
        color: var(--text-color);
        resize: vertical;
        min-height: 60px;
    }
    
    .emergency-timer {
        color: var(--primary-color);
        font-size: 1.1rem;
        text-align: center;
        margin-top: 10px;
        font-weight: bold;
    }
    
    .medical-form {
        display: none;
        background: rgba(255, 255, 255, 0.05);
        padding: 15px;
        border-radius: var(--border-radius);
        margin-top: 10px;
    }
    
    .medical-form input,
    .medical-form textarea {
        width: 100%;
        padding: 8px;
        margin-bottom: 10px;
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: var(--border-radius);
        color: var(--text-color);
    }
    
    .emergency-contacts {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    
    .contact-item {
        display: flex;
        align-items: center;
        gap: 10px;
        background: rgba(255, 255, 255, 0.05);
        padding: 10px;
        border-radius: var(--border-radius);
    }
    
    .contact-item button {
        background: none;
        border: none;
        color: var(--text-light);
        cursor: pointer;
        padding: 5px;
    }
    
    .contact-item button:hover {
        color: var(--primary-color);
    }
    
    .hospital-list {
        max-height: 200px;
        overflow-y: auto;
    }
    
    .hospital-item {
        background: rgba(255, 255, 255, 0.05);
        padding: 10px;
        margin-bottom: 8px;
        border-radius: var(--border-radius);
        cursor: pointer;
        transition: var(--transition);
    }
    
    .hospital-item:hover {
        background: rgba(255, 255, 255, 0.1);
    }
    
    .location-request {
        position: absolute;
        top: 20px;
        left: 50%;
        transform: translateX(-50%);
        background: rgba(26, 26, 46, 0.95);
        padding: 15px 25px;
        border-radius: var(--border-radius);
        z-index: 1000;
        text-align: center;
    }
    
    .location-request button {
        background: var(--primary-color);
        color: white;
        border: none;
        padding: 8px 20px;
        border-radius: var(--border-radius);
        margin-top: 10px;
        cursor: pointer;
    }
    
    .medical-records-list {
        margin-top: 10px;
        max-height: 200px;
        overflow-y: auto;
    }
    
    .medical-record-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
        background: rgba(255, 255, 255, 0.05);
        padding: 10px;
        margin-bottom: 8px;
        border-radius: var(--border-radius);
    }
    
    .record-info {
        flex: 1;
    }
    
    .record-actions {
        display: flex;
        gap: 8px;
    }
    
    .record-actions button {
        background: none;
        border: none;
        color: var(--text-light);
        cursor: pointer;
        padding: 5px;
    }
    
    .record-actions button:hover {
        color: var(--primary-color);
    }
    
    .hospital-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 5px;
    }
    
    .hospital-details {
        font-size: 0.9em;
        color: var(--text-light);
        margin-bottom: 10px;
    }
    
    .hospital-details i {
        width: 20px;
        text-align: center;
        margin-right: 5px;
    }
    
    .select-hospital-btn {
        background: var(--primary-color);
        color: white;
        border: none;
        padding: 5px 10px;
        border-radius: var(--border-radius);
        cursor: pointer;
        font-size: 0.9em;
    }
    
    .hospital-item.selected {
        border: 2px solid var(--primary-color);
    }
    
    .directions-panel {
        max-height: 300px;
        overflow-y: auto;
    }
    
    .direction-step {
        display: flex;
        align-items: center;
        padding: 5px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .step-number {
        background: var(--primary-color);
        color: white;
        width: 24px;
        height: 24px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 10px;
    }
    
    .step-instruction {
        flex: 1;
    }
    
    .step-distance {
        color: var(--text-light);
        font-size: 0.9em;
    }

    .modal {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.7);
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 1000;
    }

    .modal-content {
        background: var(--bg-color);
        padding: 20px;
        border-radius: var(--border-radius);
        width: 90%;
        max-width: 500px;
    }

    .contact-form {
        display: flex;
        flex-direction: column;
        gap: 15px;
    }

    .contact-form input {
        width: 100%;
        padding: 10px;
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: var(--border-radius);
        background: rgba(255, 255, 255, 0.1);
        color: var(--text-color);
    }

    .contact-form-buttons {
        display: flex;
        gap: 10px;
        justify-content: flex-end;
    }

    .file-upload-container {
        position: relative;
        margin: 10px 0;
    }

    .file-upload-input {
        display: none;
    }

    .file-upload-label {
        display: block;
        padding: 10px;
        background: rgba(255, 255, 255, 0.1);
        border: 1px dashed rgba(255, 255, 255, 0.2);
        border-radius: var(--border-radius);
        text-align: center;
        cursor: pointer;
        transition: var(--transition);
    }

    .file-upload-label:hover {
        background: rgba(255, 255, 255, 0.15);
    }

    .file-info {
        margin-top: 5px;
        font-size: 0.9em;
        color: var(--text-light);
    }

    .ecg-analysis-section {
        margin-top: 15px;
    }

    .ecg-analysis-section h4 {
        margin-bottom: 10px;
        color: var(--text-light);
    }

    .analysis-result {
        margin-top: 15px;
        padding: 10px;
        background: rgba(255, 255, 255, 0.05);
        border-radius: var(--border-radius);
        display: none;
    }

    .analysis-result.show {
        display: block;
    }

    .analysis-result h5 {
        color: var(--text-light);
        margin-bottom: 10px;
    }

    .analysis-result pre {
        background: rgba(0, 0, 0, 0.2);
        padding: 10px;
        border-radius: var(--border-radius);
        overflow-x: auto;
        white-space: pre-wrap;
        word-wrap: break-word;
    }
</style>
{% endblock %}

{% block content %}
<div class="container-fluid">
    <div id="emergencyMap"></div>
    
    <div class="control-panel">
        <div class="control-section">
            <div class="section-title">
                <i class="fas fa-map-marker-alt"></i> Location
            </div>
            <div id="currentLocation">Requesting location...</div>
            <button id="startJourney" class="emergency-button secondary" disabled>
                <i class="fas fa-route"></i> Start Journey to Nearest Hospital
            </button>
        </div>
        
        <div class="control-section">
            <div class="section-title">
                <i class="fas fa-hospital"></i> Nearby Hospitals
            </div>
            <div class="hospital-list" id="hospitalList">
                Loading nearby hospitals...
            </div>
        </div>
        
        <div class="control-section">
            <div class="section-title">
                <i class="fas fa-phone-alt"></i> Emergency Contacts
            </div>
            <div class="emergency-contacts" id="emergencyContacts">
                <button class="emergency-button secondary" id="addContact">
                    <i class="fas fa-plus"></i> Add Emergency Contact
                </button>
            </div>
        </div>
        
        <div class="control-section">
            <div class="section-title">
                <i class="fas fa-file-medical"></i> Medical Records
            </div>
            <div class="file-upload-container">
                <label class="file-upload-label" for="medicalRecordUpload">
                    <i class="fas fa-upload"></i> Upload Medical Records
                    <div class="file-info">Supported formats: CSV, TXT, JSON</div>
                </label>
                <input type="file" id="medicalRecordUpload" class="file-upload-input" accept=".csv,.txt,.json">
            </div>
            <div class="medical-records-list" id="medicalRecordsList">
                <!-- Medical records will be displayed here -->
            </div>
            <button class="emergency-button secondary" id="editMedicalInfo">
                <i class="fas fa-edit"></i> View Medical Information
            </button>
            <div class="medical-form" id="medicalForm">
                <input type="text" placeholder="Current Medications" id="currentMedications">
                <textarea placeholder="Allergies" id="allergies"></textarea>
                <button class="emergency-button" id="saveMedicalInfo">Save Information</button>
            </div>
        </div>
    </div>
</div>

<div class="location-request" id="locationRequest">
    <div>This app needs your location to provide emergency services</div>
    <button id="allowLocation">Allow Location Access</button>
</div>

<script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/4.0.1/socket.io.js"></script>
<script>
    // Make functions globally available
    window.selectHospital = function(index) {
        selectedHospital = nearbyHospitals[index];
        if (selectedHospital) {
            // Update the start journey button
            const startJourneyBtn = document.getElementById('startJourney');
            startJourneyBtn.innerHTML = `<i class="fas fa-route"></i> Start Journey to ${selectedHospital.name}`;
            startJourneyBtn.disabled = false;
            
            // Highlight selected hospital
            document.querySelectorAll('.hospital-item').forEach((item, i) => {
                item.classList.toggle('selected', i === index);
            });
            
            // Center map on selected hospital
            map.setView([selectedHospital.lat, selectedHospital.lon], 15);
        }
    };

    window.startJourneyToHospital = function(index) {
        const hospital = nearbyHospitals[index];
        if (hospital && userLocation) {
            // Clear existing route
            if (currentRoute) {
                map.removeLayer(currentRoute);
            }
            
            // Get detailed route with turn-by-turn directions
            fetch(`https://router.project-osrm.org/route/v1/driving/${userLocation.lng},${userLocation.lat};${hospital.lon},${hospital.lat}?overview=full&geometries=geojson&steps=true`)
                .then(response => response.json())
                .then(data => {
                    if (data.routes && data.routes[0]) {
                        const route = data.routes[0];
                        currentRoute = L.geoJSON(route.geometry, {
                            style: {
                                color: '#4CAF50',
                                weight: 5,
                                opacity: 0.7
                            }
                        }).addTo(map);
                        
                        // Fit map to show the entire route
                        map.fitBounds(currentRoute.getBounds());
                        
                        // Show turn-by-turn directions
                        const steps = route.legs[0].steps;
                        let directions = `
                            <div class="directions-panel">
                                <h3>Directions to ${hospital.name}</h3>
                                <div class="directions-list">
                                    ${steps.map((step, index) => `
                                        <div class="direction-step">
                                            <span class="step-number">${index + 1}</span>
                                            <span class="step-instruction">${step.maneuver.instruction}</span>
                                            <span class="step-distance">${Math.round(step.distance)}m</span>
                                        </div>
                                    `).join('')}
                                </div>
                            </div>
                        `;
                        
                        // Create a popup with directions
                        L.popup({maxWidth: 300})
                            .setLatLng([hospital.lat, hospital.lon])
                            .setContent(directions)
                            .openOn(map);
                    }
                });
        }
    };
</script>
<script type="module">
    import { initializeApp } from "https://www.gstatic.com/firebasejs/11.6.0/firebase-app.js";
    import { getAuth, onAuthStateChanged, signInWithCustomToken } from "https://www.gstatic.com/firebasejs/11.6.0/firebase-auth.js";
    import { getDatabase, ref, onValue, set, update, remove, push, get } from "https://www.gstatic.com/firebasejs/11.6.0/firebase-database.js";

    // Initialize Firebase
    const firebaseConfig = {
        apiKey: "AIzaSyBDr1xcrLxfemIRTydmgjTcG6mHgx919Rs",
        authDomain: "help-6661c.firebaseapp.com",
        projectId: "help-6661c",
        storageBucket: "help-6661c.firebasestorage.app",
        messagingSenderId: "2944311795",
        appId: "1:2944311795:web:61d2b982c75a446df7f286",
        measurementId: "G-H8RJ7C4Z3K",
        databaseURL: "https://help-6661c-default-rtdb.firebaseio.com"
    };

    const app = initializeApp(firebaseConfig);
    const auth = getAuth();
    const database = getDatabase();

    // Check authentication status and load data
    onAuthStateChanged(auth, async (user) => {
        if (user) {
            console.log('User is signed in:', user.uid);
            loadUserData(user.uid);
        } else {
            console.log('No user is signed in');
            // Redirect to login if not authenticated
            window.location.href = '/login';
        }
    });

    async function loadUserData(userId) {
        try {
            // Load emergency contacts
            const contactsRef = ref(database, `users/${userId}/emergency_contacts`);
            onValue(contactsRef, (snapshot) => {
                const contacts = snapshot.val();
                const contactsDiv = document.getElementById('emergencyContacts');
                
                // Clear existing contacts except the add button
                const addButton = document.getElementById('addContact');
                contactsDiv.innerHTML = '';
                contactsDiv.appendChild(addButton);
                
                if (contacts) {
                    Object.entries(contacts).forEach(([id, contact]) => {
                        const contactElement = document.createElement('div');
                        contactElement.className = 'contact-item';
                        contactElement.dataset.contactId = id;
                        contactElement.innerHTML = `
                            <div class="contact-info">
                                <div class="contact-name">${contact.name}</div>
                                <div class="contact-phone">${contact.phone}</div>
                            </div>
                            <div class="contact-actions">
                                <button onclick="callContact('${contact.phone}')" title="Call"><i class="fas fa-phone"></i></button>
                                <button onclick="removeContact('${id}')" title="Remove"><i class="fas fa-trash"></i></button>
                            </div>
                        `;
                        contactsDiv.insertBefore(contactElement, addButton);
                    });
                }
            });

            // Load medical information
            const medicalInfoRef = ref(database, `users/${userId}/medical_info`);
            onValue(medicalInfoRef, (snapshot) => {
                const medicalInfo = snapshot.val();
                if (medicalInfo) {
                    document.getElementById('currentMedications').value = medicalInfo.medications || '';
                    document.getElementById('allergies').value = medicalInfo.allergies || '';
                }
            });

            // Load medical records
            const recordsRef = ref(database, `users/${userId}/medical_records`);
            onValue(recordsRef, (snapshot) => {
                const records = snapshot.val();
                const recordsList = document.getElementById('medicalRecordsList');
                recordsList.innerHTML = '';
                
                if (records) {
                    Object.entries(records).forEach(([id, record]) => {
                        const recordElement = document.createElement('div');
                        recordElement.className = 'record-item';
                        recordElement.dataset.recordId = id;
                        recordElement.innerHTML = `
                            <div class="record-info">
                                <div class="record-name">${record.name}</div>
                                <div class="record-date">${new Date(record.uploaded_at).toLocaleDateString()}</div>
                            </div>
                            <div class="record-actions">
                                <button onclick="viewRecord('${id}')" title="View"><i class="fas fa-eye"></i></button>
                                <button onclick="downloadRecord('${id}')" title="Download"><i class="fas fa-download"></i></button>
                                <button onclick="removeRecord('${id}')" title="Remove"><i class="fas fa-trash"></i></button>
                            </div>
                        `;
                        recordsList.appendChild(recordElement);
                    });
                }
            });
        } catch (error) {
            console.error('Error loading user data:', error);
        }
    }

    function addEmergencyContact(name, phone) {
        const user = auth.currentUser;
        if (!user) {
            alert('You must be logged in to add contacts');
            return;
        }

        // Save to Firebase
        const contactsRef = ref(database, `users/${user.uid}/emergency_contacts`);
        const newContactRef = push(contactsRef);
        
        set(newContactRef, {
            name: name,
            phone: phone,
            added_at: new Date().toISOString()
        })
        .then(() => {
            // Remove the modal
            document.querySelector('.modal').remove();
        })
        .catch(error => {
            console.error('Error saving contact:', error);
            alert('Error saving contact. Please try again.');
        });
    }

    function removeContact(contactId) {
        if (confirm('Are you sure you want to remove this contact?')) {
            const user = auth.currentUser;
            if (user) {
                const contactRef = ref(database, `users/${user.uid}/emergency_contacts/${contactId}`);
                remove(contactRef)
                    .then(() => {
                        // Remove from UI
                        const contactElement = document.querySelector(`.contact-item[data-contact-id="${contactId}"]`);
                        if (contactElement) {
                            contactElement.remove();
                        }
                    })
                    .catch(error => {
                        console.error('Error removing contact:', error);
                        alert('Error removing contact. Please try again.');
                    });
            }
        }
    }

    // Make functions globally available
    window.addEmergencyContact = addEmergencyContact;
    window.removeContact = removeContact;
    window.callContact = function(phone) {
        if (phone) {
            window.location.href = `tel:${phone}`;
        }
    };
    window.viewRecord = viewRecord;
    window.removeRecord = removeRecord;
    window.downloadRecord = downloadRecord;

    // Make showContactForm globally available
    window.showContactForm = function() {
        const modal = document.createElement('div');
        modal.className = 'modal';
        modal.innerHTML = `
            <div class="modal-content">
                <h3>Add Emergency Contact</h3>
                <div class="contact-form">
                    <input type="text" id="contactName" placeholder="Enter contact name" required>
                    <input type="tel" id="contactPhone" placeholder="Enter contact phone number" required>
                    <div class="contact-form-buttons">
                        <button class="emergency-button secondary" onclick="this.closest('.modal').remove()">Cancel</button>
                        <button class="emergency-button" id="saveContactBtn">Save Contact</button>
                    </div>
                </div>
            </div>
        `;
        document.body.appendChild(modal);
        
        // Add event listener to the save button
        document.getElementById('saveContactBtn').addEventListener('click', function() {
            const name = document.getElementById('contactName').value;
            const phone = document.getElementById('contactPhone').value;
            
            if (name && phone) {
                addEmergencyContact(name, phone);
                document.querySelector('.modal').remove();
            } else {
                alert('Please fill in all fields');
            }
        });
    };

    // Initialize contact form handling
    document.addEventListener('DOMContentLoaded', function() {
        const addContactBtn = document.getElementById('addContact');
        if (addContactBtn) {
            addContactBtn.addEventListener('click', window.showContactForm);
        }
    });

    // Initialize the map
    window.map = L.map('emergencyMap').setView([0, 0], 15);
    
    // Create the street map layer
    const streetLayer = L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
        attribution: '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
    });

    // Create the satellite layer
    const satelliteLayer = L.tileLayer('https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}', {
        attribution: '&copy; <a href="https://www.esri.com/">Esri</a>'
    });

    // Add the street layer by default
    streetLayer.addTo(window.map);

    // Add layer control to switch between street and satellite views
    const baseMaps = {
        "Street Map": streetLayer,
        "Satellite": satelliteLayer
    };
    L.control.layers(baseMaps).addTo(window.map);

    let isVolunteer = false;
    let emergencyTimeout = null;
    let currentEmergency = null;
    window.userLocation = null;
    window.nearbyHospitals = [];
    window.currentRoute = null;
    window.selectedHospital = null;

    // Socket.io connection
    const socket = io();

    socket.on('connect', () => {
        console.log('Connected to server');
    });

    socket.on('emergency_alert', (data) => {
        if (isVolunteer) {
            showEmergencyAlert(data);
        }
    });

    // Location handling
    document.getElementById('allowLocation').addEventListener('click', () => {
        if (navigator.geolocation) {
            navigator.geolocation.getCurrentPosition(
                (position) => {
                    window.userLocation = {
                        lat: position.coords.latitude,
                        lng: position.coords.longitude
                    };
                    window.map.setView([window.userLocation.lat, window.userLocation.lng], 15);
                    document.getElementById('locationRequest').style.display = 'none';
                    updateCurrentLocation();
                    findNearbyHospitals();
                },
                (error) => {
                    console.error('Error getting location:', error);
                    alert('Please enable location access to use emergency features');
                }
            );
        }
    });

    function updateCurrentLocation() {
        if (window.userLocation) {
            document.getElementById('currentLocation').textContent = 
                `Current Location: ${window.userLocation.lat.toFixed(4)}, ${window.userLocation.lng.toFixed(4)}`;
            document.getElementById('startJourney').disabled = false;
        }
    }

    async function findNearbyHospitals() {
        try {
            const response = await fetch(`/api/nearby_hospitals?lat=${window.userLocation.lat}&lon=${window.userLocation.lng}`);
            const data = await response.json();
            
            if (data.hospitals) {
                window.nearbyHospitals = data.hospitals;
                displayHospitals(data.hospitals);
                
                // Add markers for each hospital
                data.hospitals.forEach((hospital, index) => {
                    L.marker([hospital.lat, hospital.lon], {
                        icon: L.divIcon({
                            className: 'hospital-marker',
                            html: '<i class="fas fa-hospital" style="color: #4CAF50; font-size: 20px;"></i>'
                        })
                    })
                    .bindPopup(`<b>${hospital.name}</b><br>${hospital.address}<br>Distance: ${(hospital.distance).toFixed(0)}m`)
                    .addTo(window.map);
                });
            }
        } catch (error) {
            console.error('Error finding hospitals:', error);
        }
    }

    function displayHospitals(hospitals) {
        const hospitalList = document.getElementById('hospitalList');
        hospitalList.innerHTML = hospitals.map((hospital, index) => `
            <div class="hospital-item" onclick="selectHospital(${index})">
                <div class="hospital-header">
                    <strong>${hospital.name}</strong>
                    <span class="distance">${(hospital.distance).toFixed(0)}m</span>
                </div>
                <div class="hospital-details">
                    <div>${hospital.address}</div>
                    ${hospital.phone ? `<div><i class="fas fa-phone"></i> ${hospital.phone}</div>` : ''}
                    ${hospital.website ? `<div><i class="fas fa-globe"></i> <a href="${hospital.website}" target="_blank">Website</a></div>` : ''}
                </div>
                <button class="select-hospital-btn" onclick="event.stopPropagation(); startJourneyToHospital(${index})">
                    <i class="fas fa-route"></i> Start Journey
                </button>
            </div>
        `).join('');
    }

    // Update the start journey button click handler
    document.getElementById('startJourney').addEventListener('click', function() {
        if (window.nearbyHospitals.length > 0) {
            // If no specific hospital is selected, use the first (nearest) hospital
            const hospitalIndex = window.selectedHospital ? 
                window.nearbyHospitals.findIndex(h => h.name === window.selectedHospital.name) : 0;
            window.startJourneyToHospital(hospitalIndex);
        }
    });

    // Medical records handling
    document.getElementById('medicalRecordUpload').addEventListener('change', (e) => {
        const file = e.target.files[0];
        if (file) {
            if (file.type === 'text/csv' || file.type === 'text/plain' || file.type === 'application/json') {
                uploadMedicalRecord(file);
            } else {
                alert('Please upload a CSV, TXT, or JSON file');
            }
        }
    });

    document.getElementById('editMedicalInfo').addEventListener('click', () => {
        const form = document.getElementById('medicalForm');
        form.style.display = form.style.display === 'none' ? 'block' : 'none';
    });

    document.getElementById('saveMedicalInfo').addEventListener('click', () => {
        const medications = document.getElementById('currentMedications').value;
        const allergies = document.getElementById('allergies').value;
        saveMedicalInfo(medications, allergies);
    });

    async function saveMedicalInfo(medications, allergies) {
        try {
            const user = auth.currentUser;
            if (user) {
                const medicalInfoRef = ref(database, `users/${user.uid}/medical_info`);
                await set(medicalInfoRef, {
                    medications: medications,
                    allergies: allergies,
                    updated_at: new Date().toISOString()
                });
                alert('Medical information saved successfully');
                document.getElementById('medicalForm').style.display = 'none';
            } else {
                alert('You must be logged in to save medical information');
            }
        } catch (error) {
            console.error('Error saving medical info:', error);
            alert('Error saving medical information. Please try again.');
        }
    }

    async function uploadMedicalRecord(file) {
        try {
            const user = auth.currentUser;
            if (!user) {
                alert('You must be logged in to upload medical records');
                return;
            }

            const reader = new FileReader();
            reader.onload = async function(e) {
                const content = e.target.result;
                const recordsRef = ref(database, `users/${user.uid}/medical_records`);
                const newRecordRef = push(recordsRef);
                
                await set(newRecordRef, {
                    name: file.name,
                    content: content,
                    type: file.type,
                    uploaded_at: new Date().toISOString()
                });
                
                alert('Medical record uploaded successfully');
            };
            reader.readAsText(file);
        } catch (error) {
            console.error('Error uploading record:', error);
            alert('Error uploading medical record. Please try again.');
        }
    }

    async function viewRecord(recordId) {
        try {
            const user = auth.currentUser;
            if (user) {
                const recordRef = ref(database, `users/${user.uid}/medical_records/${recordId}`);
                const snapshot = await get(recordRef);
                const record = snapshot.val();
                
                if (record) {
                    const modal = document.createElement('div');
                    modal.className = 'modal';
                    modal.innerHTML = `
                        <div class="modal-content">
                            <h3>${record.name}</h3>
                            <div class="record-content">
                                <pre>${record.content}</pre>
                            </div>
                            <div class="modal-buttons">
                                <button class="emergency-button" onclick="this.closest('.modal').remove()">Close</button>
                            </div>
                        </div>
                    `;
                    document.body.appendChild(modal);
                }
            }
        } catch (error) {
            console.error('Error viewing record:', error);
            alert('Error viewing record. Please try again.');
        }
    }

    async function removeRecord(recordId) {
        if (confirm('Are you sure you want to remove this record?')) {
            try {
                const user = auth.currentUser;
                if (user) {
                    const recordRef = ref(database, `users/${user.uid}/medical_records/${recordId}`);
                    await remove(recordRef);
                    alert('Record removed successfully');
                }
            } catch (error) {
                console.error('Error removing record:', error);
                alert('Error removing record. Please try again.');
            }
        }
    }

    async function downloadRecord(recordId) {
        try {
            const user = auth.currentUser;
            if (user) {
                const recordRef = ref(database, `users/${user.uid}/medical_records/${recordId}`);
                const snapshot = await get(recordRef);
                const record = snapshot.val();
                
                if (record) {
                    // Create a blob from the content
                    const blob = new Blob([record.content], { type: record.type || 'text/plain' });
                    
                    // Create a download link
                    const url = URL.createObjectURL(blob);
                    const a = document.createElement('a');
                    a.href = url;
                    a.download = record.name;
                    
                    // Trigger the download
                    document.body.appendChild(a);
                    a.click();
                    
                    // Clean up
                    document.body.removeChild(a);
                    URL.revokeObjectURL(url);
                }
            }
        } catch (error) {
            console.error('Error downloading record:', error);
            alert('Error downloading record. Please try again.');
        }
    }

    // ECG data handling
    document.getElementById('ecgDataUpload').addEventListener('change', (e) => {
        const file = e.target.files[0];
        if (file) {
            if (file.type !== 'application/json' && !file.name.endsWith('.json')) {
                alert('Please upload a JSON file');
                e.target.value = '';
                return;
            }
            uploadECGData(file);
        }
    });

    async function uploadECGData(file) {
        try {
            const user = auth.currentUser;
            if (user) {
                const timestamp = new Date().toISOString();
                const recordRef = ref(database, `users/${user.uid}/ecg_data/${timestamp}`);
                
                const reader = new FileReader();
                reader.onload = async (e) => {
                    try {
                        // Validate JSON format
                        const content = e.target.result;
                        const jsonData = JSON.parse(content);
                        
                        // Store the data
                        await set(recordRef, {
                            filename: file.name,
                            type: 'application/json',
                            content: jsonData,
                            uploaded_at: timestamp
                        });

                        // Show analysis result
                        const resultDiv = document.getElementById('ecgAnalysisResult');
                        resultDiv.innerHTML = `
                            <h5>ECG Analysis Result</h5>
                            <pre>${JSON.stringify(analyzeECGData(jsonData), null, 2)}</pre>
                        `;
                        resultDiv.classList.add('show');
                        
                        alert('ECG data uploaded and analyzed successfully');
                    } catch (error) {
                        console.error('Error parsing JSON:', error);
                        alert('Invalid JSON format. Please upload a valid JSON file.');
                    }
                };
                reader.readAsText(file);
            }
        } catch (error) {
            console.error('Error uploading ECG data:', error);
            alert('Error uploading ECG data');
        }
    }

    function analyzeECGData(data) {
        // This is a placeholder for actual ECG analysis
        // You would implement your ECG analysis logic here
        return {
            status: 'success',
            timestamp: new Date().toISOString(),
            analysis: {
                heartRate: calculateHeartRate(data),
                anomalies: detectAnomalies(data),
                recommendations: generateRecommendations(data)
            }
        };
    }

    function calculateHeartRate(data) {
        // Placeholder for heart rate calculation
        return '60-100 BPM (Normal)';
    }

    function detectAnomalies(data) {
        // Placeholder for anomaly detection
        return ['No significant anomalies detected'];
    }

    function generateRecommendations(data) {
        // Placeholder for recommendations
        return ['Continue regular monitoring'];
    }

    // Emergency button functionality
    document.getElementById('triggerEmergency').addEventListener('click', async function() {
        if (!window.userLocation) {
            alert('Please enable location access first');
            return;
        }
        
        const description = document.getElementById('emergencyDescription').value;
        
        try {
            // Call all emergency contacts
            const contacts = document.querySelectorAll('.contact-item');
            contacts.forEach(contact => {
                const phone = contact.querySelector('.contact-phone').textContent;
                callContact(phone, description);
            });
            
            // Send emergency alert to server
            const response = await fetch('/api/emergency', {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json'
                },
                body: JSON.stringify({
                    lat: window.userLocation.lat,
                    lng: window.userLocation.lng,
                    description: description
                })
            });
            
            const result = await response.json();
            if (result.status === 'success') {
                currentEmergency = result.emergency_id;
                startEmergencyTimer();
                showEmergencyMarker(window.userLocation.lat, window.userLocation.lng);
            }
        } catch (error) {
            console.error('Error sending emergency alert:', error);
        }
    });

    function startEmergencyTimer() {
        let timeLeft = 300; // 5 minutes in seconds
        const timerElement = document.getElementById('emergencyTimer');
        
        if (emergencyTimeout) {
            clearInterval(emergencyTimeout);
        }
        
        emergencyTimeout = setInterval(() => {
            timeLeft--;
            const minutes = Math.floor(timeLeft / 60);
            const seconds = timeLeft % 60;
            timerElement.textContent = `Calling emergency services in: ${minutes}:${seconds.toString().padStart(2, '0')}`;
            
            if (timeLeft <= 0) {
                clearInterval(emergencyTimeout);
                callEmergencyServices();
            }
        }, 1000);
    }

    function callEmergencyServices() {
        alert('Emergency services have been notified!');
        document.getElementById('emergencyTimer').textContent = 'Emergency services notified';
    }

    function showEmergencyMarker(lat, lng) {
        // Clear existing markers
        window.map.eachLayer((layer) => {
            if (layer instanceof L.Marker) {
                window.map.removeLayer(layer);
            }
        });
        
        // Add emergency marker
        L.marker([lat, lng], {
            icon: L.divIcon({
                className: 'emergency-marker',
                html: '<i class="fas fa-exclamation-triangle" style="color: red; font-size: 24px;"></i>'
            })
        }).addTo(window.map);
    }
</script>
{% endblock %}