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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>Hail Size Estimator</title>
    <script src="https://cdn.tailwindcss.com"></script>
    <script src="https://cdn.jsdelivr.net/npm/react@18.2.0/umd/react.production.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/react-dom@18.2.0/umd/react-dom.production.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/7.22.10/babel.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/axios@1.4.0/dist/axios.min.js"></script>
    <script src="https://unpkg.com/@duckdb/duckdb-wasm@1.28.0/dist/duckdb-browser.js"></script>
    <script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"></script>
    <link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" />
    <style>
        #map { height: 400px; }
        .sidebar { width: 300px; }
    </style>
</head>
<body class="bg-gray-100">
    <div id="root"></div>

    <script type="text/babel">
        const { useState, useEffect } = React;

        const App = () => {
            const [address, setAddress] = useState("Dallas, TX");
            const [date, setDate] = useState("2025-08-08");
            const [showData, setShowData] = useState("Show All");
            const [data, setData] = useState([]);
            const [lat, setLat] = useState(null);
            const [lon, setLon] = useState(null);
            const [map, setMap] = useState(null);
            const geocodeKey = process.env.GEOCODE_KEY || "YOUR_API_KEY";

            const convertToCSV = (data) => {
                const headers = ["Date_utc", "Within 1 Mile", "Within 3 Miles", "Within 5 Miles", "Within 10 Miles", "Address"];
                const csvRows = [headers.join(",")];
                data.forEach(row => {
                    const values = headers.map(header => {
                        return header === "Address" ? `"${address}"` : `"${row[header] || ""}"`;
                    });
                    csvRows.push(values.join(","));
                });
                return new Blob([csvRows.join("\n")], { type: "text/csv" });
            };

            const geocode = async (address) => {
                try {
                    const encodedAddress = encodeURIComponent(address);
                    const response = await axios.get(
                        `https://api.geocod.io/v1.7/geocode?q=${encodedAddress}&api_key=${geocodeKey}`,
                        { headers: { "Content-Type": "application/json" } }
                    );
                    const { lat, lng } = response.data.results[0].location;
                    setLat(lat);
                    setLon(lng);
                    return { lat, lng };
                } catch (error) {
                    alert("Address not found. Try correcting with City, State & Zip.");
                    return { lat: null, lng: null };
                }
            };

            const getData = async (lat, lon, dateStr) => {
                const db = await duckdb.createDB();
                await db.run("PRAGMA threads=2");
                await db.run("PRAGMA enable_object_cache");
                const query = `
                    SELECT "#ZTIME" AS Date_utc, LON, LAT, MAXSIZE 
                    FROM 'data/*.parquet'
                    WHERE LAT <= ${lat + 1} AND LAT >= ${lat - 1}
                    AND LON <= ${lon + 1} AND LON >= ${lon - 1}
                    AND "#ZTIME" <= '${dateStr}'
                `;
                const result = await db.query(query);
                return result.toArray();
            };

            const calculateDistance = (lat1, lon1, lat2, lon2) => {
                const toRad = (value) => (value * Math.PI) / 180;
                const R = 3958.8; // Earth's radius in miles
                const dLat = toRad(lat2 - lat1);
                const dLon = toRad(lon2 - lon1);
                const a = Math.sin(dLat / 2) * Math.sin(dLat / 2) +
                          Math.cos(toRad(lat1)) * Math.cos(toRad(lat2)) *
                          Math.sin(dLon / 2) * Math.sin(dLon / 2);
                const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
                return R * c;
            };

            useEffect(() => {
                const initializeMap = (lat, lon) => {
                    const mapInstance = L.map("map").setView([lat, lon], 9);
                    L.tileLayer("https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png", {
                        attribution: '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a>'
                    }).addTo(mapInstance);
                    L.marker([lat, lon]).addTo(mapInstance)
                        .bindTooltip(`Address: ${address}`);
                    setMap(mapInstance);
                };

                const fetchData = async () => {
                    const { lat, lng } = await geocode(address);
                    if (lat && lng) {
                        const dateStr = date.replace(/-/g, "");
                        let hailData = await getData(lat, lng, dateStr);
                        hailData = hailData.map(row => ({
                            ...row,
                            Lat_address: lat,
                            Lon_address: lng,
                            Miles_to_Hail: calculateDistance(row.LAT, row.LON, lat, lng).toFixed(2),
                            MAXSIZE: Number(row.MAXSIZE).toFixed(2),
                            Category: row.Miles_to_Hail < 1 ? "Within 1 Mile" :
                                     row.Miles_to_Hail < 3 ? "Within 3 Miles" :
                                     row.Miles_to_Hail < 5 ? "Within 5 Miles" :
                                     row.Miles_to_Hail < 10 ? "Within 10 Miles" : "Other"
                        }));

                        const pivotData = {};
                        hailData.forEach(row => {
                            if (!pivotData[row.Date_utc]) {
                                pivotData[row.Date_utc] = {};
                            }
                            pivotData[row.Date_utc][row.Category] = Math.max(
                                pivotData[row.Date_utc][row.Category] || 0,
                                row.MAXSIZE
                            );
                        });

                        const colsFocus = ["Within 1 Mile", "Within 3 Miles", "Within 5 Miles", "Within 10 Miles"];
                        let formattedData = Object.keys(pivotData).map(date => {
                            const row = { Date_utc: new Date(date).toISOString().split("T")[0] };
                            colsFocus.forEach(col => {
                                row[col] = pivotData[date][col] || null;
                            });
                            return row;
                        });

                        if (showData !== "Show All") {
                            formattedData = formattedData.filter(row => row[`Within ${showData}`]);
                        }

                        colsFocus.forEach((col, i) => {
                            if (i < colsFocus.length - 1) {
                                formattedData = formattedData.map(row => ({
                                    ...row,
                                    [colsFocus[i + 1]]: row[colsFocus[i + 1]] && row[colsFocus[i + 1]] > (row[colsFocus[i]] || 0)
                                        ? row[colsFocus[i + 1]]
                                        : row[colsFocus[i]]
                                }));
                            }
                        });

                        formattedData.sort((a, b) => new Date(b.Date_utc) - new Date(a.Date_utc));
                        setData(formattedData);
                        initializeMap(lat, lng);
                    }
                };

                fetchData();
            }, [address, date, showData]);

            return (
                <div className="flex h-screen">
                    <div className="sidebar bg-white p-6 shadow-md">
                        <h2 className="text-xl font-bold mb-4">Hail Size Estimator</h2>
                        <div className="mb-4">
                            <label className="block text-sm font-medium">Address</label>
                            <input
                                type="text"
                                value={address}
                                onChange={(e) => setAddress(e.target.value)}
                                className="mt-1 p-2 w-full border rounded"
                            />
                        </div>
                        <div className="mb-4">
                            <label className="block text-sm font-medium">Loss Date (Max)</label>
                            <input
                                type="date"
                                value={date}
                                max="2025-08-08"
                                onChange={(e) => setDate(e.target.value)}
                                className="mt-1 p-2 w-full border rounded"
                            />
                        </div>
                        <div className="mb-4">
                            <label className="block text-sm font-medium">Show Data Within</label>
                            <select
                                value={showData}
                                onChange={(e) => setShowData(e.target.value)}
                                className="mt-1 p-2 w-full border rounded"
                            >
                                <option>Show All</option>
                                <option>1 Mile</option>
                                <option>3 Miles</option>
                                <option>5 Miles</option>
                            </select>
                        </div>
                    </div>
                    <div className="flex-1 p-6">
                        <div className="flex gap-6">
                            <div className="w-3/5">
                                <h2 className="text-xl font-bold mb-4">Estimated Maximum Hail Size</h2>
                                <p className="text-sm mb-4">Data from 2010 to 2025-08-08</p>
                                <table className="w-full border-collapse">
                                    <thead>
                                        <tr className="bg-gray-200">
                                            <th className="border p-2">Date</th>
                                            <th className="border p-2">Within 1 Mile</th>
                                            <th className="border p-2">Within 3 Miles</th>
                                            <th className="border p-2">Within 5 Miles</th>
                                            <th className="border p-2">Within 10 Miles</th>
                                        </tr>
                                    </thead>
                                    <tbody>
                                        {data.map((row, index) => (
                                            <tr key={index} className="border">
                                                <td className="border p-2">{row.Date_utc}</td>
                                                <td className="border p-2">{row["Within 1 Mile"] || "-"}</td>
                                                <td className="border p-2">{row["Within 3 Miles"] || "-"}</td>
                                                <td className="border p-2">{row["Within 5 Miles"] || "-"}</td>
                                                <td className="border p-2">{row["Within 10 Miles"] || "-"}</td>
                                            </tr>
                                        ))}
                                    </tbody>
                                </table>
                                <a
                                    href={URL.createObjectURL(convertToCSV(data))}
                                    download={`${address}_${date.replace(/-/g, "")}.csv`}
                                    className="mt-4 inline-block bg-blue-500 text-white px-4 py-2 rounded"
                                >
                                    Download Data as CSV
                                </a>
                            </div>
                            <div className="w-2/5">
                                <h2 className="text-xl font-bold mb-4">Map</h2>
                                <div id="map" className="w-full"></div>
                            </div>
                        </div>
                    </div>
                </div>
            );
        };

        ReactDOM.render(<App />, document.getElementById("root"));
    </script>
</body>
</html>