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<!DOCTYPE html>
<html>
<head>
    <title>Ticker Checker</title>
    <style>
        body { font-family: Arial; margin: 40px; }
        input { padding: 8px; width: 200px; }
        button { padding: 8px 12px; }
        #result { margin-top: 20px; font-size: 18px; }
    </style>
</head>
<body>

<h2>Check if a Ticker Exists</h2>

<input id="tickerInput" type="text" placeholder="Enter ticker (e.g., AAPL)">
<button onclick="checkTicker()">Check</button>

<div id="result"></div>

<script>
async function checkTicker() {
    const ticker = document.getElementById("tickerInput").value.trim().toUpperCase();
    const resultDiv = document.getElementById("result");

    resultDiv.innerHTML = ""; // clear previous result

    if (!ticker) {
        resultDiv.innerHTML = `<span style="color: red;">Please enter a ticker.</span>`;
        return;
    }

    try {
        const response = await fetch(`/check/${ticker}`);
        const data = await response.json();

        if (data.exists) {
            resultDiv.innerHTML = `<span style="color: green;">✔ ${data.message}</span>`;
        } else {
            resultDiv.innerHTML = `<span style="color: red;">✘ ${data.message}</span>`;
        }

    } catch (err) {
        resultDiv.innerHTML = `<span style="color: red;">Error connecting to server.</span>`;
        console.error("Network error:", err);
    }
}
</script>

</body>
</html>