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<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
    <title>{{ pdf_title }}</title>
    <style>
        body {
            background-color: #2b3035;
            color: #fff;
            margin: 0;
            font-family: sans-serif;
        }
        .viewer-container {
            display: flex;
            flex-direction: column;
            height: 100vh;
        }
        .viewer-header {
            padding: 10px;
            background-color: #212529;
            text-align: center;
        }
        .viewer-main {
            flex-grow: 1;
            display: flex;
            justify-content: center;
            align-items: center;
            overflow: hidden;
        }
        .viewer-main img {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
        }
        .viewer-footer {
            padding: 10px;
            background-color: #212529;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .viewer-footer button {
            background-color: #0d6efd;
            color: #fff;
            border: none;
            padding: 10px 20px;
            margin: 0 10px;
            cursor: pointer;
            border-radius: 5px;
        }
        .viewer-footer button:disabled {
            background-color: #6c757d;
            cursor: not-allowed;
        }
    </style>
</head>
<body>
    <div class="viewer-container">
        <div class="viewer-header">
            <h1>{{ pdf_title }}</h1>
        </div>
        <div class="viewer-main">
            <img id="main-image" src="" alt="PDF Page">
        </div>
        <div class="viewer-footer">
            <button id="prev-btn">Previous</button>
            <span id="page-counter"></span>
            <button id="next-btn">Next</button>
        </div>
    </div>

    <script>
        const imageUrls = {{ image_urls|tojson }};
        let currentIndex = 0;

        const mainImage = document.getElementById('main-image');
        const prevBtn = document.getElementById('prev-btn');
        const nextBtn = document.getElementById('next-btn');
        const pageCounter = document.getElementById('page-counter');

        function showImage(index) {
            if (index >= 0 && index < imageUrls.length) {
                mainImage.src = imageUrls[index];
                currentIndex = index;
                pageCounter.textContent = `${index + 1} / ${imageUrls.length}`;
                prevBtn.disabled = index === 0;
                nextBtn.disabled = index === imageUrls.length - 1;
            }
        }

        prevBtn.addEventListener('click', () => {
            showImage(currentIndex - 1);
        });

        nextBtn.addEventListener('click', () => {
            showImage(currentIndex + 1);
        });

        document.addEventListener('keydown', (e) => {
            if (e.key === 'ArrowLeft') {
                prevBtn.click();
            } else if (e.key === 'ArrowRight') {
                nextBtn.click();
            }
        });

        // Initial load
        showImage(0);
    </script>
</body>
</html>