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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>GeoSafe Construct | Professional AI Safety Analyzer</title>
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/tailwind.min.css" rel="stylesheet">
<link rel="stylesheet" href="https://unpkg.com/[email protected]/dist/leaflet.css" integrity="sha256-p4NxAoJBhIIN+hmNHrzRCf9tD/miZyoHS5obTRR9BMY=" crossorigin=""/>
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap" rel="stylesheet">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/simple-line-icons/2.5.5/css/simple-line-icons.css">
<style>
:root {
--primary-blue: #0072ff;
--primary-blue-dark: #005fcc;
--secondary-blue: #00c6ff;
--text-dark: #1f2937;
--text-medium: #4b5563;
--text-light: #6b7280;
--card-bg: #ffffff;
--body-bg: #f8f9fa;
--border-color: #dee2e6;
--success-bg: #e6f7f0; --success-text: #0a6847; --success-border: #b3e0c8; /* Softer Greens */
--warning-bg: #fff8e1; --warning-text: #795502; --warning-border: #ffecb3; /* Softer Yellows */
--danger-bg: #fdecea; --danger-text: #8c1c13; --danger-border: #f9c1ba; /* Softer Reds */
--info-bg: #e0f7fa; --info-text: #006064; --info-border: #b2ebf2; /* Softer Cyans/Blues */
--neutral-bg: #f1f3f5; --neutral-text: #495057; --neutral-border: #ced4da; /* Softer Grays */
}
body { font-family: 'Inter', sans-serif; background-color: var(--body-bg); color: var(--text-dark); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
.app-header { background: linear-gradient(135deg, var(--secondary-blue) 0%, var(--primary-blue) 100%); color: white; padding: 2rem 0; margin-bottom: 2.5rem; box-shadow: 0 4px 12px rgba(0,114,255,0.2); }
.app-header h1 { text-shadow: 0 1px 2px rgba(0,0,0,0.15); font-weight: 800; }
.app-header p { opacity: 0.9; }
.map-container { border-radius: 0.625rem; border: 1px solid var(--border-color); box-shadow: 0 1px 3px rgba(0,0,0,0.05); overflow: hidden; /* Important for border radius on map */ }
#input-map { height: 280px; cursor: crosshair; }
#results-map { height: 400px; }
.leaflet-popup-content-wrapper { border-radius: 0.5rem; background: var(--card-bg); box-shadow: 0 4px 15px rgba(0,0,0,0.1); border: 1px solid var(--border-color); }
.leaflet-popup-content { margin: 15px !important; font-size: 0.875rem; color: var(--text-dark); }
.risk-badge { padding: 0.3rem 0.8rem; border-radius: 9999px; font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.75px; display: inline-block; border: 1px solid; line-height: 1; }
.risk-low, .risk-negligible, .risk-stable { background-color: var(--success-bg); color: var(--success-text); border-color: var(--success-border); }
.risk-medium, .risk-moderately_stable { background-color: var(--warning-bg); color: var(--warning-text); border-color: var(--warning-border); }
.risk-high, .risk-very_high, .risk-unstable { background-color: var(--danger-bg); color: var(--danger-text); border-color: var(--danger-border); }
.risk-not_assessed, .risk-requires_investigation, .risk-variable { background-color: var(--neutral-bg); color: var(--neutral-text); border-color: var(--neutral-border); }
.score-gauge-container { text-align: center; margin-bottom: 1.5rem; }
.score-gauge { position: relative; width: 200px; height: 100px; overflow: hidden; margin: 0 auto 0.75rem auto; }
.score-gauge-bg { width: 200px; height: 200px; border-radius: 50%; background: conic-gradient(from 180deg, #EF4444 0%, #EF4444 16.67%, #F59E0B 16.67%, #F59E0B 33.33%, #10B981 33.33%, #10B981 50%, var(--body-bg) 50.01%, var(--body-bg) 100%); position: absolute; top: 0; left: 0; }
.score-gauge-meter { width: 200px; height: 200px; border-radius: 50%; background: var(--card-bg); position: absolute; top: 0; left: 0; transform-origin: center center; transition: transform 1s cubic-bezier(0.68, -0.55, 0.27, 1.55); clip-path: polygon(0% 0%, 100% 0%, 100% 50%, 0% 50%); transform: rotate(0deg); }
.score-gauge-overlay { width: 160px; height: 80px; background: var(--card-bg); border-radius: 160px 160px 0 0 / 80px 80px 0 0; position: absolute; bottom: 0; left: 20px; }
.safety-score-value-display { font-size: 3.25rem; font-weight: 800; line-height: 1; margin-top: 0.25rem; transition: color 0.5s; }
.safety-score-label-display { font-size: 0.8rem; color: var(--text-medium); text-transform: uppercase; letter-spacing: 1px; font-weight: 500; }
.card { background-color: var(--card-bg); border-radius: 0.875rem; box-shadow: 0 5px 15px rgba(0,0,0,0.06); padding: 2rem; margin-bottom: 2.5rem; border: 1px solid var(--border-color); transition: all 0.3s ease-in-out; }
.card:hover { box-shadow: 0 8px 25px rgba(0,0,0,0.08); transform: translateY(-3px); }
.card h2 { font-size: 1.5rem; font-weight: 700; } .card h3 { font-size: 1.2rem; font-weight: 600; }
.card p, .card li, .card span { color: var(--text-medium); line-height: 1.65; }
.card strong { color: var(--text-dark); font-weight: 600; } .card .text-xs { color: var(--text-light); }
.btn { padding: 0.875rem 1.75rem; font-weight: 600; border-radius: 0.5rem; transition: all 0.25s ease-in-out; display: inline-flex; align-items: center; justify-content: center; border: 1px solid transparent; cursor: pointer; text-transform: uppercase; letter-spacing: 0.5px; font-size: 0.875rem; }
.btn-primary { background-color: var(--primary-blue); color: white; box-shadow: 0 2px 5px rgba(0,114,255,0.2); }
.btn-primary:hover { background-color: var(--primary-blue-dark); transform: translateY(-2px); box-shadow: 0 4px 10px rgba(0,114,255,0.3); }
.btn-primary:disabled { background-color: #a0cfff; box-shadow: none; transform: none; cursor: not-allowed; }
.btn-secondary { background-color: var(--card-bg); border-color: var(--border-color); color: var(--primary-blue); }
.btn-secondary:hover { background-color: #f0f6ff; border-color: var(--primary-blue); color: var(--primary-blue-dark); transform: translateY(-2px); box-shadow: 0 4px 10px rgba(0,0,0,0.05); }
.icon-style { width: 1.125rem; height: 1.125rem; margin-right: 0.75rem; vertical-align: middle; }
.btn-spinner { width: 1.25em; height: 1.25em; border: 3px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin 0.65s linear infinite; margin-left: 0.75em; }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
#analysis-overlay {
position: fixed; inset: 0;
background-color: rgba(0,0,0,0.35); /* Darker overlay */
backdrop-filter: blur(8px); /* Stronger blur */
display: flex; align-items: center; justify-content: center;
z-index: 10000; /* Higher z-index */
transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
visibility: hidden; opacity: 0;
}
#analysis-overlay.visible { visibility: visible; opacity: 1; }
input[type="number"], input[type="text"] { border: 1px solid var(--border-color); border-radius: 0.5rem; padding: 0.875rem 1.125rem; color: var(--text-dark); width: 100%; background-color: #fff; transition: border-color 0.2s, box-shadow 0.2s; font-size: 0.9375rem; }
input[type="number"]:focus, input[type="text"]:focus { border-color: var(--primary-blue); box-shadow: 0 0 0 3px rgba(0, 114, 255, 0.2); outline: none; }
label { color: var(--text-medium); font-weight: 500; margin-bottom: 0.5rem; display: block; font-size: 0.875rem; }
.input-group { position: relative; }
.input-group .btn { position: absolute; right: 0.375rem; top: 50%; transform: translateY(-50%); padding: 0.625rem 1rem; font-size: 0.8rem; }
.accordion-item { border-bottom: 1px solid var(--border-color); }
.accordion-item:last-child { border-bottom: none; }
.accordion-header { display: flex; justify-content: space-between; align-items: center; padding: 1.25rem 0.75rem; cursor: pointer; transition: background-color 0.25s, color 0.25s; border-radius: 0.375rem; margin: 0.25rem 0; }
.accordion-header:hover { background-color: #eef2ff; /* Light indigo for hover */ color: var(--primary-blue-dark); }
.accordion-header.open { background-color: #e0e7ff; /* Slightly darker for open */ color: var(--primary-blue-dark); }
.accordion-header h3 { margin-bottom: 0; transition: color 0.25s; }
.accordion-content { max-height: 0; overflow: hidden; transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1), padding 0.5s cubic-bezier(0.4, 0, 0.2, 1); padding: 0 0.75rem; }
/* .accordion-content.open is handled by JS by setting max-height to scrollHeight */
.accordion-arrow { transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1); font-size: 1.2rem; color: var(--primary-blue); }
.accordion-header.open .accordion-arrow { transform: rotate(90deg); }
.custom-list li { padding-left: 1.75em; position: relative; margin-bottom: 0.625em; }
.custom-list li::before { font-family: 'simple-line-icons'; position: absolute; left: 0; top: 2px; font-size: 1em; transition: color 0.2s; }
#mitigation-recommendations-list li::before { content: "\e080"; color: var(--success-text); } /* Check */
#key-risk-factors-summary li::before { content: "\e090"; color: var(--danger-text); } /* Exclamation */
#further-investigations-list li::before { content: "\e003"; color: var(--warning-text); } /* Magnifying glass */
/* Styling for risk detail items inside accordion */
.risk-detail-item { padding: 0.75rem 0; border-bottom: 1px dashed #e5e7eb; }
.risk-detail-item:last-child { border-bottom: none; }
.risk-detail-item strong { display: block; margin-bottom: 0.25rem; }
.risk-detail-item .text-xs { margin-top: 0.25rem; }
</style>
</head>
<body class="antialiased">
<header class="app-header">
<div class="container mx-auto px-4 text-center">
<div class="inline-flex items-center p-2 rounded-lg">
<i class="icon-shield text-4xl mr-3"></i>
<h1 class="text-4xl sm:text-5xl tracking-tight">GeoSafe Construct</h1>
</div>
<p class="mt-2 text-lg">Professional AI-Powered Construction Site Safety Analysis</p>
</div>
</header>
<div class="container mx-auto px-4 w-full max-w-3xl pb-16">
<section id="input-section" class="card !pt-8">
<h2 class="text-2xl font-bold mb-8 text-center text-gray-700">Define Site for Analysis</h2>
<div class="mb-6">
<label for="location-query">Search Location (e.g., "Eiffel Tower, Paris" or Address):</label>
<div class="input-group">
<input type="text" id="location-query" placeholder="Enter address or place name...">
<button id="search-location-button" class="btn btn-secondary !py-3">
<i class="icon-magnifier mr-1"></i> Search
</button>
</div>
</div>
<p class="text-center text-sm text-gray-500 my-4">OR ENTER COORDINATES / CLICK MAP</p>
<div class="grid grid-cols-1 md:grid-cols-2 gap-x-6 gap-y-5 mb-5">
<div>
<label for="latitude">Latitude:</label>
<input type="number" id="latitude" name="latitude" step="any" value="18.520962" placeholder="e.g., 18.520962">
</div>
<div>
<label for="longitude">Longitude:</label>
<input type="number" id="longitude" name="longitude" step="any" value="73.857672" placeholder="e.g., 73.857672">
</div>
</div>
<div class="mb-6">
<label>Select precise location by clicking on the map:</label>
<div class="map-container">
<div id="input-map"></div>
</div>
</div>
<div class="flex flex-col sm:flex-row justify-center items-center gap-4 mt-8">
<button id="analyze-button" class="btn btn-primary w-full sm:w-auto">
<span id="button-text">Analyze Location</span>
<i id="analyze-icon" class="icon-paper-plane ml-2"></i>
<div id="button-spinner" class="btn-spinner hidden"></div>
</button>
<button id="use-my-location" class="btn btn-secondary w-full sm:w-auto">
<i class="icon-location-pin mr-2"></i>
Use My Current Location
</button>
</div>
</section>
<div id="analysis-overlay" class="fixed inset-0 flex items-center justify-start px-10">
<div class="bg-white p-10 rounded-xl shadow-2xl text-left">
<div class="w-16 h-16 border-6 border-blue-500 border-t-transparent rounded-full animate-spin mb-6"></div>
<p class="text-2xl font-semibold text-gray-700">Analyzing Location Data...</p>
<p class="text-lg text-gray-500 mt-2">This may take a few moments.</p>
</div>
</div>
<div id="error-message-container" class="hidden my-6 p-5 border-l-4 rounded-md shadow-md"> {/* Base classes, specific colors in JS */}
<div class="flex">
<div class="flex-shrink-0">
<i class="icon-info text-2xl"></i> {/* Icon class will be set by JS */}
</div>
<div class="ml-4">
<h3 class="text-lg font-bold">Notice</h3> {/* Title will be set by JS */}
<div class="mt-2 text-md">
<p id="error-text"></p>
</div>
</div>
</div>
</div>
<section id="results-section" class="hidden">
<div class="card">
<div class="flex flex-col sm:flex-row justify-between items-start mb-4">
<div>
<h2 class="text-2xl font-bold" id="location-name-display">Site Assessment</h2>
<p class="text-md text-gray-500" id="current-coords-display">Lat: N/A, Lon: N/A</p>
</div>
<span id="suitability-badge" class="mt-2 sm:mt-0 px-4 py-2 text-md font-semibold rounded-full self-start sm:self-center">N/A</span>
</div>
<div class="score-gauge-container mt-4 mb-5">
<div class="score-gauge">
<div class="score-gauge-bg"></div>
<div id="score-gauge-meter-dynamic" class="score-gauge-meter"></div>
<div class="score-gauge-overlay"></div>
</div>
<div id="safety-score-value-display" class="safety-score-value-display">N/A</div>
<div class="safety-score-label-display">Overall Safety Score</div>
</div>
<div class="mt-6">
<h3 class="text-xl font-semibold mb-2">Assessment Summary:</h3>
<p id="summary-assessment" class="text-md leading-relaxed">Loading assessment...</p>
</div>
<div class="mt-4">
<h3 class="text-xl font-semibold mb-1">Suitability:</h3>
<p id="suitability-statement" class="text-md font-bold">N/A</p>
</div>
</div>
<div class="card">
<h2 class="text-2xl font-bold mb-6">Detailed Risk Analysis</h2>
<div class="accordion-item">
<div class="accordion-header">
<h3 class="text-xl flex items-center text-red-700"><i class="icon-layers mr-3"></i>Geological Risks</h3>
<i class="icon-arrow-right accordion-arrow"></i>
</div>
<div class="accordion-content">
<div class="space-y-5 p-3">
<div id="earthquake-risk-details" class="risk-detail-item"></div>
<div id="landslide-risk-details" class="risk-detail-item"></div>
<div id="soil-stability-details" class="risk-detail-item"></div>
</div>
</div>
</div>
<div class="accordion-item">
<div class="accordion-header">
<h3 class="text-xl flex items-center text-blue-700"><i class="icon-drop mr-3"></i>Hydrological Risks</h3>
<i class="icon-arrow-right accordion-arrow"></i>
</div>
<div class="accordion-content">
<div class="space-y-5 p-3">
<div id="flood-risk-details" class="risk-detail-item"></div>
<div id="tsunami-risk-details" class="hidden risk-detail-item"></div>
</div>
</div>
</div>
<div id="other-environmental-risks-accordion" class="accordion-item hidden">
<div class="accordion-header">
<h3 class="text-xl flex items-center text-purple-700"><i class="icon-globe-alt mr-3"></i>Other Environmental Risks</h3>
<i class="icon-arrow-right accordion-arrow"></i>
</div>
<div class="accordion-content">
<div id="other-environmental-risks-list" class="space-y-5 p-3"></div>
</div>
</div>
<hr class="my-8 border-gray-200">
<div>
<h3 class="text-xl font-semibold mb-3 flex items-center"><i class="icon-flag mr-3 text-red-600"></i>Key Risk Factors:</h3>
<ul id="key-risk-factors-summary" class="custom-list space-y-2 text-md"></ul>
</div>
</div>
<div class="card">
<h2 class="text-2xl font-bold mb-6">Recommendations & Further Actions</h2>
<div class="grid grid-cols-1 md:grid-cols-2 gap-x-10 gap-y-8">
<div>
<h3 class="text-xl font-semibold mb-4 flex items-center text-green-700">
<i class="icon-check mr-3"></i>Mitigation Recommendations
</h3>
<ul id="mitigation-recommendations-list" class="custom-list space-y-2 text-md"></ul>
</div>
<div>
<h3 class="text-xl font-semibold mb-4 flex items-center text-yellow-700">
<i class="icon-magnifier-add mr-3"></i>Further Investigations Needed
</h3>
<ul id="further-investigations-list" class="custom-list space-y-2 text-md"></ul>
</div>
</div>
</div>
<div class="card">
<h2 class="text-2xl font-bold mb-5">Site Map & Alternatives Overview</h2>
<div class="map-container">
<div id="results-map"></div>
</div>
</div>
<div id="alternative-locations-section" class="card hidden">
<h2 class="text-2xl font-bold mb-5 flex items-center">
<i class="icon-directions mr-3 text-blue-600"></i>Alternative Location Analysis
</h2>
<div id="alternative-locations-container" class="space-y-6">
<p class="text-md text-gray-500">No significantly better alternatives identified or loading...</p>
</div>
</div>
<div class="card text-md">
<p><strong>Data Confidence:</strong> <span id="data-confidence" class="font-semibold">N/A</span></p>
<p id="disclaimer-text" class="mt-3 text-sm text-gray-500 italic">Disclaimer will be loaded here.</p>
</div>
</section>
</div>
<script src="https://unpkg.com/[email protected]/dist/leaflet.js" integrity="sha256-20nQCchB9co0qIjJZRGuk2/Z9VM+kNiyxNV1lvTlZBo=" crossorigin=""></script>
<script>
// --- Leaflet Icons ---
const createIcon = (color) => L.icon({
iconUrl: `https://raw.githubusercontent.com/pointhi/leaflet-color-markers/master/img/marker-icon-2x-${color}.png`,
shadowUrl: 'https://cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.7/images/marker-shadow.png',
iconSize: [25, 41], iconAnchor: [12, 41], popupAnchor: [1, -34], shadowSize: [41, 41]
});
const primaryLocationIcon = createIcon('blue');
const saferAlternativeIcon = createIcon('green');
const otherAlternativeIcon = createIcon('orange');
const selectionIcon = createIcon('red');
// --- DOM Element References (ensure all are captured) ---
let inputMap, resultsMap, inputMarker, currentResultMarker;
const alternativeMarkers = [];
const latitudeInput = document.getElementById('latitude');
const longitudeInput = document.getElementById('longitude');
const locationQueryInput = document.getElementById('location-query');
const searchLocationButton = document.getElementById('search-location-button');
const analyzeButton = document.getElementById('analyze-button');
const buttonText = document.getElementById('button-text');
const buttonSpinner = document.getElementById('button-spinner');
const analyzeIcon = document.getElementById('analyze-icon');
const useMyLocationButton = document.getElementById('use-my-location');
const resultsSection = document.getElementById('results-section');
const analysisOverlay = document.getElementById('analysis-overlay');
const errorMessageContainer = document.getElementById('error-message-container');
const errorText = document.getElementById('error-text');
const locationNameDisplay = document.getElementById('location-name-display');
const currentCoordsDisplay = document.getElementById('current-coords-display');
const suitabilityBadge = document.getElementById('suitability-badge');
const scoreValueDisplay = document.getElementById('safety-score-value-display');
const summaryAssessmentP = document.getElementById('summary-assessment');
const suitabilityStatementP = document.getElementById('suitability-statement');
const earthquakeRiskDetailsDiv = document.getElementById('earthquake-risk-details');
const landslideRiskDetailsDiv = document.getElementById('landslide-risk-details');
const soilStabilityDetailsDiv = document.getElementById('soil-stability-details');
const floodRiskDetailsDiv = document.getElementById('flood-risk-details');
const tsunamiRiskDetailsDiv = document.getElementById('tsunami-risk-details');
const otherEnvRisksAccordion = document.getElementById('other-environmental-risks-accordion');
const otherEnvRisksList = document.getElementById('other-environmental-risks-list');
const keyRiskFactorsUl = document.getElementById('key-risk-factors-summary');
const mitigationRecommendationsUl = document.getElementById('mitigation-recommendations-list');
const furtherInvestigationsUl = document.getElementById('further-investigations-list');
const altLocationsSection = document.getElementById('alternative-locations-section');
const altLocationsContainer = document.getElementById('alternative-locations-container');
const dataConfidenceSpan = document.getElementById('data-confidence');
const disclaimerP = document.getElementById('disclaimer-text');
// --- Initialization ---
document.addEventListener('DOMContentLoaded', () => {
analysisOverlay.classList.remove('visible');
inputMap = L.map('input-map', { scrollWheelZoom: true, attributionControl: false }).setView([18.520962, 73.857672], 12); // Default to Pune
L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', { maxZoom: 18, opacity: 0.9 }).addTo(inputMap);
L.control.attribution({prefix: false}).addTo(inputMap);
updateInputMarker(18.520962, 73.857672);
inputMap.on('click', function(e) {
const lat = e.latlng.lat;
const lon = e.latlng.lng;
latitudeInput.value = lat.toFixed(6);
longitudeInput.value = lon.toFixed(6);
updateInputMarker(lat, lon);
locationQueryInput.value = '';
});
resultsMap = L.map('results-map', { scrollWheelZoom: false, attributionControl: false }).setView([20.5937, 78.9629], 5); // Default to India view
L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', { maxZoom: 18, opacity: 0.9 }).addTo(resultsMap);
L.control.attribution({prefix: false}).addTo(resultsMap);
searchLocationButton.addEventListener('click', handleLocationSearch);
locationQueryInput.addEventListener('keypress', e => { if (e.key === 'Enter') handleLocationSearch(); });
analyzeButton.addEventListener('click', handleAnalysis);
useMyLocationButton.addEventListener('click', getUserLocationAndAnalyze);
document.querySelectorAll('.accordion-header').forEach(header => {
header.addEventListener('click', () => {
const content = header.nextElementSibling;
header.classList.toggle('open');
// content.classList.toggle('open'); // Replaced with direct style manipulation
if (content.style.maxHeight && content.style.maxHeight !== "0px") {
content.style.maxHeight = "0px";
content.style.paddingTop = "0px";
content.style.paddingBottom = "0px";
} else {
content.style.maxHeight = content.scrollHeight + "px";
content.style.paddingTop = "1rem"; // Or your desired padding
content.style.paddingBottom = "1rem";
}
});
});
});
// --- Core Functions ---
function updateInputMarker(lat, lon, zoomLevel = 13) {
if (inputMarker) inputMap.removeLayer(inputMarker);
inputMarker = L.marker([lat, lon], {icon: selectionIcon}).addTo(inputMap);
inputMap.setView([lat, lon], zoomLevel, {animate: true});
}
async function handleLocationSearch() {
const query = locationQueryInput.value.trim();
if (!query) { displayError("Please enter a location to search."); return; }
searchLocationButton.disabled = true;
const originalSearchHTML = searchLocationButton.innerHTML;
searchLocationButton.innerHTML = `<div class="btn-spinner !ml-0 !mr-0 !w-4 !h-4"></div>`;
try {
const response = await fetch('/api/geocode', {
method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ query })
});
const data = await response.json();
if (!response.ok || data.error) throw new Error(data.error || "Location not found.");
latitudeInput.value = parseFloat(data.latitude).toFixed(6);
longitudeInput.value = parseFloat(data.longitude).toFixed(6);
updateInputMarker(data.latitude, data.longitude, 15);
locationQueryInput.value = data.display_name;
hideError();
} catch (error) {
console.error("Geocoding error:", error);
displayError(error.message);
} finally {
searchLocationButton.disabled = false;
searchLocationButton.innerHTML = originalSearchHTML;
}
}
function showLoadingState(isLoading) {
if (isLoading) {
analysisOverlay.classList.add('visible');
buttonText.textContent = 'Analyzing...';
analyzeIcon.classList.add('hidden');
buttonSpinner.classList.remove('hidden');
analyzeButton.disabled = true;
} else {
analysisOverlay.classList.remove('visible');
buttonText.textContent = 'Analyze Location';
analyzeIcon.classList.remove('hidden');
buttonSpinner.classList.add('hidden');
analyzeButton.disabled = false;
}
}
function displayError(message, isWarning = false) {
errorText.innerHTML = message;
errorMessageContainer.classList.remove('hidden');
const errorIconEl = errorMessageContainer.querySelector('i');
const errorTitleEl = errorMessageContainer.querySelector('h3');
if (isWarning) {
errorMessageContainer.className = 'my-6 p-5 bg-yellow-50 border-l-4 border-yellow-500 text-yellow-700 rounded-md shadow-md flex';
if(errorIconEl) errorIconEl.className = 'icon-info text-2xl text-yellow-500';
if(errorTitleEl) errorTitleEl.textContent = "Notice";
} else {
errorMessageContainer.className = 'my-6 p-5 bg-red-50 border-l-4 border-red-500 text-red-700 rounded-md shadow-md flex';
if(errorIconEl) errorIconEl.className = 'icon-close text-2xl text-red-500';
if(errorTitleEl) errorTitleEl.textContent = "Analysis Error";
}
resultsSection.classList.add('hidden');
}
function hideError() { errorMessageContainer.classList.add('hidden'); }
async function handleAnalysis() {
const latitude = parseFloat(latitudeInput.value);
const longitude = parseFloat(longitudeInput.value);
if (isNaN(latitude) || isNaN(longitude) || latitude < -90 || latitude > 90 || longitude < -180 || longitude > 180) {
displayError("Valid latitude (-90 to 90) & longitude (-180 to 180) required."); return;
}
hideError(); showLoadingState(true); resultsSection.classList.add('hidden');
try {
const response = await fetch('/api/analyze_location', {
method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ latitude, longitude })
});
const data = await response.json();
if (!response.ok) throw new Error(data.error_message || data.error || `Analysis failed: ${response.status}`);
if (data.error_message && response.ok && !data.safety_score) { // Check if it's a fallback error from backend
displayError(`<strong>Analysis Incomplete:</strong> ${data.error_message}<br>Some information may be missing or generalized. Please try a different location or refine your query.`, true);
}
resultsSection.classList.remove('hidden');
if (resultsMap) resultsMap.invalidateSize();
displayDetailedResults(data, latitude, longitude);
updateResultsMap(data, latitude, longitude);
setTimeout(() => {
const firstResultCard = resultsSection.querySelector('.card');
if (firstResultCard) {
firstResultCard.scrollIntoView({ behavior: 'smooth', block: 'start' });
}
}, 300);
} catch (error) {
console.error('Analysis error:', error);
displayError(error.message || "Unexpected error during analysis.");
} finally {
showLoadingState(false);
}
}
function getUserLocationAndAnalyze() {
if (!navigator.geolocation) { displayError("Geolocation not supported by this browser."); return; }
const originalButtonHTML = useMyLocationButton.innerHTML;
useMyLocationButton.innerHTML = `<div class="btn-spinner !ml-0 !mr-2"></div> Locating...`;
useMyLocationButton.disabled = true;
navigator.geolocation.getCurrentPosition(
position => {
const { latitude: lat, longitude: lon } = position.coords;
latitudeInput.value = lat.toFixed(6);
longitudeInput.value = lon.toFixed(6);
updateInputMarker(lat, lon);
locationQueryInput.value = '';
useMyLocationButton.innerHTML = originalButtonHTML;
useMyLocationButton.disabled = false;
handleAnalysis();
},
error => {
console.error("Geolocation error:", error);
displayError("Could not get current location. Check browser permissions.");
useMyLocationButton.innerHTML = originalButtonHTML;
useMyLocationButton.disabled = false;
},
{ timeout: 10000, enableHighAccuracy: true }
);
}
function getRiskBadgeClasses(riskLevel) {
riskLevel = riskLevel ? String(riskLevel).toLowerCase().replace(/[\s-]+/g, "_") : 'not_assessed';
const classMap = { 'low': 'risk-low', 'negligible': 'risk-low', 'stable': 'risk-low', 'medium': 'risk-medium', 'moderately_stable': 'risk-medium', 'high': 'risk-high', 'very_high': 'risk-high', 'unstable': 'risk-high', 'not_assessed': 'risk-not_assessed', 'requires_investigation': 'risk-not_assessed', 'variable': 'risk-not_assessed' };
return classMap[riskLevel] || 'risk-not_assessed';
}
function formatRiskDetail(container, title, riskData) {
container.innerHTML = '';
if (!riskData || (riskData.level === undefined && riskData.type === undefined)) {
container.innerHTML = `<p class="text-sm text-gray-500">${title}: Data unavailable or not applicable.</p>`; return;
}
const level = riskData.level || riskData.type;
let detailsHTML = `<p class="text-sm text-gray-600 leading-relaxed">${riskData.details || 'No specific details provided.'}</p>`;
if (riskData.concerns && riskData.concerns.length > 0) {
detailsHTML += `<ul class="list-disc list-inside text-xs text-gray-500 mt-2 pl-3 space-y-1">`;
riskData.concerns.forEach(concern => detailsHTML += `<li>${concern}</li>`);
detailsHTML += `</ul>`;
}
container.innerHTML = `
<div class="flex justify-between items-center mb-1.5">
<strong class="text-md font-medium text-gray-700">${title}</strong>
<span class="risk-badge ${getRiskBadgeClasses(level)}">${String(level).replace(/_/g, ' ')}</span>
</div>
${detailsHTML}
`;
}
function updateSafetyGauge(score) {
const meter = document.getElementById('score-gauge-meter-dynamic');
score = Math.max(0, Math.min(100, parseInt(score) || 0));
scoreValueDisplay.textContent = score;
const rotation = (score / 100) * 180;
meter.style.transform = `rotate(${rotation}deg)`;
if (score >= 70) scoreValueDisplay.style.color = '#047857';
else if (score >= 40) scoreValueDisplay.style.color = '#CA8A04';
else scoreValueDisplay.style.color = '#B91C1C';
}
function displayDetailedResults(data, lat, lon) {
locationNameDisplay.textContent = data.location_name || "Site Assessment";
currentCoordsDisplay.textContent = `Lat: ${lat.toFixed(4)}, Lon: ${lon.toFixed(4)}`;
updateSafetyGauge(data.safety_score || 0);
summaryAssessmentP.innerHTML = data.summary_assessment ? data.summary_assessment.replace(/\n/g, '<br>') : 'No summary provided.'; // Allow line breaks
suitabilityStatementP.textContent = data.suitability_statement || 'Suitability not determined.';
const suitability = String(data.suitability_statement || "").toLowerCase();
let badgeClass = "px-4 py-2 text-md font-semibold rounded-full self-start sm:self-center transition-all duration-300 ";
if (suitability.includes("suitable") || suitability.includes("recommended")) badgeClass += "bg-green-100 text-green-700 border border-green-300";
else if (suitability.includes("caution") || suitability.includes("concerns") || suitability.includes("mitigation")) badgeClass += "bg-yellow-100 text-yellow-700 border border-yellow-300";
else if (suitability.includes("not recommended") || suitability.includes("unsuitable") || suitability.includes("incomplete") || suitability.includes("major intervention")) badgeClass += "bg-red-100 text-red-700 border border-red-300";
else badgeClass += "bg-gray-100 text-gray-700 border border-gray-300";
suitabilityBadge.className = badgeClass;
suitabilityBadge.textContent = data.suitability_statement ? (data.suitability_statement.split(' ')[0] + (data.suitability_statement.split(' ')[1] ? ' ' + data.suitability_statement.split(' ')[1] : '')) : "Pending";
formatRiskDetail(earthquakeRiskDetailsDiv, 'Earthquake', data.geological_risks?.earthquake_risk);
formatRiskDetail(landslideRiskDetailsDiv, 'Landslide', data.geological_risks?.landslide_risk);
formatRiskDetail(soilStabilityDetailsDiv, 'Soil Stability', data.geological_risks?.soil_stability);
formatRiskDetail(floodRiskDetailsDiv, 'Flood', data.hydrological_risks?.flood_risk);
if (data.hydrological_risks?.tsunami_risk && data.hydrological_risks.tsunami_risk.level && data.hydrological_risks.tsunami_risk.level.toLowerCase() !== 'negligible') {
formatRiskDetail(tsunamiRiskDetailsDiv, 'Tsunami', data.hydrological_risks.tsunami_risk);
tsunamiRiskDetailsDiv.classList.remove('hidden');
} else { tsunamiRiskDetailsDiv.classList.add('hidden'); }
otherEnvRisksList.innerHTML = '';
if (data.other_environmental_risks && data.other_environmental_risks.length > 0) {
data.other_environmental_risks.forEach(risk => {
const riskDiv = document.createElement('div');
riskDiv.className = 'risk-detail-item';
formatRiskDetail(riskDiv, risk.type, risk);
otherEnvRisksList.appendChild(riskDiv);
});
otherEnvRisksAccordion.classList.remove('hidden');
} else { otherEnvRisksAccordion.classList.add('hidden'); }
updateList(keyRiskFactorsUl, data.key_risk_factors_summary, 'No specific key risk factors highlighted.');
updateList(mitigationRecommendationsUl, data.mitigation_recommendations, 'No specific mitigation strategies provided.');
updateList(furtherInvestigationsUl, data.further_investigations_needed, 'No specific further investigations suggested.');
altLocationsContainer.innerHTML = '';
if (data.alternative_locations_analysis && data.alternative_locations_analysis.length > 0) {
data.alternative_locations_analysis.forEach(alt => {
const card = document.createElement('div');
card.className = 'p-5 rounded-lg border border-gray-200 hover:shadow-xl transform hover:-translate-y-1 transition-all duration-300 cursor-pointer bg-white hover:border-blue-400';
let prosConsHTML = '';
if ((alt.potential_pros && alt.potential_pros.length > 0) || (alt.potential_cons && alt.potential_cons.length > 0)) {
prosConsHTML += '<div class="text-xs mt-3 pt-3 border-t border-gray-200 space-y-1.5">';
if (alt.potential_pros && alt.potential_pros.length) prosConsHTML += `<div><strong class="text-green-600">Pros:</strong> ${alt.potential_pros.join('; ')}</div>`;
if (alt.potential_cons && alt.potential_cons.length) prosConsHTML += `<div><strong class="text-red-600">Cons:</strong> ${alt.potential_cons.join('; ')}</div>`;
prosConsHTML += '</div>';
}
card.innerHTML = `
<div class="flex justify-between items-start mb-2">
<div>
<h4 class="font-semibold text-blue-600 text-lg">${alt.name_suggestion || 'Alternative Site'}</h4>
<p class="text-xs text-gray-500">${alt.actual_name || `Lat: ${parseFloat(alt.latitude).toFixed(3)}, Lon: ${parseFloat(alt.longitude).toFixed(3)}`}</p>
</div>
<span class="text-sm text-gray-500 whitespace-nowrap font-medium">${alt.estimated_distance_km} km</span>
</div>
<div class="text-md mb-2">Est. Safety Score: <strong class="${(alt.comparative_safety_score_estimate || 0) >= 70 ? 'text-green-700' : (alt.comparative_safety_score_estimate || 0) >= 40 ? 'text-yellow-700' : 'text-red-700'}">${alt.comparative_safety_score_estimate !== undefined ? alt.comparative_safety_score_estimate : 'N/A'}</strong></div>
<p class="text-sm text-gray-600 mb-2">${alt.brief_justification || 'General alternative suggestion.'}</p>
${prosConsHTML}
`;
card.addEventListener('click', () => {
resultsMap.setView([parseFloat(alt.latitude), parseFloat(alt.longitude)], 14, {animate: true});
alternativeMarkers.forEach(m => {
const markerLatLng = m.getLatLng();
if (markerLatLng.lat.toFixed(4) === parseFloat(alt.latitude).toFixed(4) && markerLatLng.lng.toFixed(4) === parseFloat(alt.longitude).toFixed(4)) {
m.openPopup();
}
});
});
altLocationsContainer.appendChild(card);
});
altLocationsSection.classList.remove('hidden');
} else {
altLocationsContainer.innerHTML = '<p class="text-md text-gray-500">No significantly better alternative locations were identified based on the current analysis.</p>';
altLocationsSection.classList.remove('hidden');
}
dataConfidenceSpan.textContent = data.data_confidence_level || 'N/A';
disclaimerP.textContent = data.disclaimer || 'Standard disclaimers apply. Consult professionals.';
}
function updateList(listElement, items, emptyMessage) {
listElement.innerHTML = '';
if (items && items.length > 0) {
items.forEach(item => {
const li = document.createElement('li');
li.textContent = item;
listElement.appendChild(li);
});
} else {
const li = document.createElement('li');
li.textContent = emptyMessage;
li.className = "text-gray-500 italic";
listElement.appendChild(li);
}
}
function updateResultsMap(data, currentLat, currentLng) {
if (currentResultMarker) resultsMap.removeLayer(currentResultMarker);
alternativeMarkers.forEach(marker => resultsMap.removeLayer(marker));
alternativeMarkers.length = 0;
currentResultMarker = L.marker([currentLat, currentLng], { icon: primaryLocationIcon, zIndexOffset: 1000 })
.addTo(resultsMap)
.bindPopup(`<b>${data.location_name || 'Analyzed Location'}</b><br>Score: ${data.safety_score || 'N/A'}<br>${data.suitability_statement || ''}`)
.openPopup();
const bounds = L.latLngBounds([[currentLat, currentLng]]);
if (data.alternative_locations_analysis && data.alternative_locations_analysis.length > 0) {
data.alternative_locations_analysis.forEach(alt => {
try {
const altLat = parseFloat(alt.latitude); const altLng = parseFloat(alt.longitude);
if (isNaN(altLat) || isNaN(altLng)) { console.warn("Invalid alt coords:", alt); return; }
const icon = (alt.comparative_safety_score_estimate || 0) > (data.safety_score || 0) + 5 ? saferAlternativeIcon : otherAlternativeIcon;
const altMarker = L.marker([altLat, altLng], { icon: icon })
.addTo(resultsMap)
.bindPopup(`<b>${alt.name_suggestion || 'Alternative'}</b> (${alt.actual_name || ''})<br>Est. Score: ${alt.comparative_safety_score_estimate || 'N/A'}<br>${alt.estimated_distance_km} km away`);
alternativeMarkers.push(altMarker); bounds.extend([altLat, altLng]);
} catch (e) { console.error("Error creating alt marker:", alt, e); }
});
}
if (bounds.isValid() && !bounds.getSouthWest().equals(bounds.getNorthEast())) {
resultsMap.fitBounds(bounds, { padding: [60, 60], maxZoom: 14, animate: true });
} else { resultsMap.setView([currentLat, currentLng], 13, {animate: true}); }
}
</script>
</body>
</html>