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document.addEventListener('DOMContentLoaded', () => {
    const convo = document.querySelector(".convo");
    const fileUpload = document.getElementById('file-upload');
    const imageUpload = document.getElementById('image-upload');
    const fileBtn = document.getElementById('file-btn');
    const imageBtn = document.getElementById('image-btn');
    const sendButtons = document.querySelectorAll('.sendingQA');
    const SummarizeInput = document.querySelector(".SummarizeInput");
    const CaptionInput = document.querySelector(".CaptionInput");
    const gotItButton = document.querySelector('.explainChoix button');
    const explainChoixDiv = document.querySelector('.explainChoix');

    let selectedFile = null;

    const summarizeRadio = document.getElementById('summarize-radio');
    if (summarizeRadio) summarizeRadio.checked = true;

    document.querySelectorAll('.select-options input[name="mode"]').forEach(radio => {
        radio.addEventListener('change', (e) => {
            if (e.target.checked) {
                const selectedValue = e.target.value;
                if (selectedValue === "Summarize") {
                    SummarizeInput.classList.add("active");
                    SummarizeInput.classList.remove("innactive");
                    CaptionInput.classList.remove("active");
                    CaptionInput.classList.add("innactive");
                } else {
                    SummarizeInput.classList.add("innactive");
                    SummarizeInput.classList.remove("active");
                    CaptionInput.classList.remove("innactive");
                    CaptionInput.classList.add("active");
                }
            }
        });
    });

    fileBtn.addEventListener('click', () => fileUpload.click());
    imageBtn.addEventListener('click', () => imageUpload.click());

    fileUpload.addEventListener('change', (e) => {
        if (e.target.files.length) {
            selectedFile = e.target.files[0];
            displayFilePreview(selectedFile);
        }
    });

    imageUpload.addEventListener('change', (e) => {
        if (e.target.files.length) {
            selectedFile = e.target.files[0];
            displayFilePreview(selectedFile);
        }
    });

    gotItButton.addEventListener('click', () => {
        explainChoixDiv.style.display = "none";
    });

    sendButtons.forEach(button => {
        button.addEventListener('click', handleSubmit);
    });

    function displayFilePreview(file) {
        const previewBubble = document.createElement("div");
        previewBubble.className = "file-preview-bubble bubble right";
        previewBubble.style.display = "flex";
        previewBubble.style.flexDirection = "column";
        previewBubble.style.maxWidth = "50%";

        if (file.type.startsWith('image/')) {
            const reader = new FileReader();
            reader.onload = (e) => {
                const img = document.createElement("img");
                img.src = e.target.result;
                img.style.width = "100%";
                img.style.height = "200px";
                img.style.objectFit = "cover";
                img.style.borderRadius = "10px";
                img.style.marginBottom = "8px";

                const text = document.createElement("span");
                text.textContent = `πŸ“Ž Selected image: ${file.name}`;
                text.style.fontSize = "13px";

                previewBubble.appendChild(img);
                previewBubble.appendChild(text);
                convo.appendChild(previewBubble);
                convo.scrollTop = convo.scrollHeight;
            };
            reader.readAsDataURL(file);
        } else {
            const text = document.createElement("span");
            text.textContent = `πŸ“Ž Selected document: ${file.name}`;
            text.style.fontSize = "13px";

            previewBubble.appendChild(text);
            convo.appendChild(previewBubble);
            convo.scrollTop = convo.scrollHeight;
        }
    }

    function createMessageBubble(text, sender = "You", audioSrc = null, fileName = null) {
        const bubble = document.createElement('div');
        bubble.className = `bubble ${sender === "You" ? "right" : "left"}`;
        bubble.style.maxWidth = "50%";
        bubble.style.wordWrap = "break-word";

        const label = document.createElement('div');
        label.className = "label";
        label.textContent = sender;

        const message = document.createElement('div');
        message.className = "text";
        message.style.whiteSpace = "pre-wrap";
        message.style.display = "flex";
        message.style.flexDirection = "column";

        const textSpan = document.createElement("span");
        textSpan.innerHTML = text;
        message.appendChild(textSpan);

        if (sender !== "You" && (audioSrc || fileName)) {
            const iconContainer = document.createElement('div');
            iconContainer.style.marginTop = "10px";
            iconContainer.style.display = "flex";
            iconContainer.style.justifyContent = "flex-end";
            iconContainer.style.gap = "15px";

            if (audioSrc) {
                const audio = new Audio(audioSrc);
              //  const audioIcon = document.createElement("i");
                audioIcon.className = "fa-solid fa-volume-high audio-toggle";
                audioIcon.title = "Play Audio";
                audioIcon.style.cursor = "pointer";
                audioIcon.style.fontSize = "18px";

                audioIcon.addEventListener("click", () => {
                    if (audio.paused) {
                        audio.play();
                        audioIcon.classList.remove("fa-volume-xmark");
                        audioIcon.classList.add("fa-volume-high");
                        audioIcon.title = "Mute Audio";
                    } else {
                        audio.pause();
                        audioIcon.classList.remove("fa-volume-high");
                        audioIcon.classList.add("fa-volume-xmark");
                        audioIcon.title = "Unmute Audio";
                    }
                });

                iconContainer.appendChild(audioIcon);
            }

            if (fileName) {
                const downloadLink = document.createElement('a');
                downloadLink.href = fileName;
                downloadLink.target = "_blank";
                downloadLink.download = "summary.pdf";
                const downloadIcon = document.createElement("i");
                downloadIcon.className = "fa-solid fa-file-arrow-down";
                downloadIcon.style.fontSize = "18px";
                downloadIcon.style.cursor = "pointer";
                downloadLink.appendChild(downloadIcon);
                iconContainer.appendChild(downloadLink);
            }

            message.appendChild(iconContainer);
        }

        bubble.appendChild(label);
        bubble.appendChild(message);
        convo.appendChild(bubble);
        convo.scrollTop = convo.scrollHeight;
        return bubble;
    }


 async function handleSubmit() {
    if (!selectedFile) {
        alert("Please upload a file first");
        return;
    }

    const isSummarizeMode = document.querySelector('input[name="mode"]:checked').value === 'Summarize';
    const endpoint = isSummarizeMode ? '/Summarization/summarize/' : '/Summarization/imagecaption/';
    const thinkingText = isSummarizeMode ? 'Processing document πŸ“„... <div class="loader"></div>' : "Generating caption πŸ–ΌοΈ ... <div class='loader'></div>";
    const senderName = "Aidan";

    const thinkingBubble = createMessageBubble(thinkingText, senderName);

    const formData = new FormData();
    formData.append('file', selectedFile);
    if (isSummarizeMode) formData.append('length', 'medium');

    try {
        const response = await fetch(endpoint, {
            method: 'POST',
            body: formData
        });

        if (!response.ok) {
            let errorMessage = 'Request failed';
            try {
                const error = await response.json();
                errorMessage = error.detail || error.error || errorMessage;
            } catch (e) {}
            throw new Error(errorMessage);
        }

        const result = await response.json();
        thinkingBubble.remove();

        if (isSummarizeMode) {
            createMessageBubble(
                result.summary || "No summary generated.",
                "Aidan",
                null,  // Removed audioUrl
                result.pdfUrl
            );
        } else {
            createMessageBubble(
                result.caption || result.answer || "No caption generated.",
                "Aidan",
                null,  // Removed audio
                null
            );
        }
    } catch (error) {
        thinkingBubble.remove();
        createMessageBubble(`⚠️ Error: ${error.message}`, "Aidan");
    } finally {
        selectedFile = null;
    }
}

    const style = document.createElement('style');
    style.textContent = `
        .loader {
            display: inline-block;
            border: 2px solid #f3f3f3;
            border-top: 2px solid #3b82f6;
            border-radius: 50%;
            width: 16px;
            height: 16px;
            animation: spin 1s linear infinite;
        }
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
    `;
    document.head.appendChild(style);

    var backarrow = document.querySelector(".fa-arrow-left");
    backarrow.addEventListener('click', function () {
        window.location.href = '/';
    });
});  
/*  document.addEventListener('DOMContentLoaded', () => {
    const convo = document.querySelector(".convo");
    const fileUpload = document.getElementById('file-upload');
    const imageUpload = document.getElementById('image-upload');
    const fileBtn = document.getElementById('file-btn');
    const imageBtn = document.getElementById('image-btn');
    const sendButtons = document.querySelectorAll('.sendingQA');
    const SummarizeInput = document.querySelector(".SummarizeInput");
    const CaptionInput = document.querySelector(".CaptionInput");
    const gotItButton = document.querySelector('.explainChoix button');
    const explainChoixDiv = document.querySelector('.explainChoix');

    let selectedFile = null;

    const summarizeRadio = document.getElementById('summarize-radio');
    if (summarizeRadio) summarizeRadio.checked = true;

    document.querySelectorAll('.select-options input[name="mode"]').forEach(radio => {
        radio.addEventListener('change', (e) => {
            if (e.target.checked) {
                const selectedValue = e.target.value;
                if (selectedValue === "Summarize") {
                    SummarizeInput.classList.add("active");
                    SummarizeInput.classList.remove("innactive");
                    CaptionInput.classList.remove("active");
                    CaptionInput.classList.add("innactive");
                } else {
                    SummarizeInput.classList.add("innactive");
                    SummarizeInput.classList.remove("active");
                    CaptionInput.classList.remove("innactive");
                    CaptionInput.classList.add("active");
                }
            }
        });
    });

    fileBtn.addEventListener('click', () => fileUpload.click());
    imageBtn.addEventListener('click', () => imageUpload.click());

    fileUpload.addEventListener('change', (e) => {
        if (e.target.files.length) {
            selectedFile = e.target.files[0];
            displayFilePreview(selectedFile);
        }
    });

    imageUpload.addEventListener('change', (e) => {
        if (e.target.files.length) {
            selectedFile = e.target.files[0];
            displayFilePreview(selectedFile);
        }
    });

    gotItButton.addEventListener('click', () => {
        explainChoixDiv.style.display = "none";
    });

    sendButtons.forEach(button => {
        button.addEventListener('click', handleSubmit);
    });

    function displayFilePreview(file) {
        const previewBubble = document.createElement("div");
        previewBubble.className = "file-preview-bubble bubble right";
        previewBubble.style.display = "flex";
        previewBubble.style.flexDirection = "column";
        previewBubble.style.maxWidth = "50%";

        if (file.type.startsWith('image/')) {
            const reader = new FileReader();
            reader.onload = (e) => {
                const img = document.createElement("img");
                img.src = e.target.result;
                img.style.width = "100%";
                img.style.height = "200px";
                img.style.objectFit = "cover";
                img.style.borderRadius = "10px";
                img.style.marginBottom = "8px";

                const text = document.createElement("span");
                text.textContent = `πŸ“Ž Selected image: ${file.name}`;
                text.style.fontSize = "13px";

                previewBubble.appendChild(img);
                previewBubble.appendChild(text);
                convo.appendChild(previewBubble);
                convo.scrollTop = convo.scrollHeight;
            };
            reader.readAsDataURL(file);
        } else {
            const text = document.createElement("span");
            text.textContent = `πŸ“Ž Selected document: ${file.name}`;
            text.style.fontSize = "13px";

            previewBubble.appendChild(text);
            convo.appendChild(previewBubble);
            convo.scrollTop = convo.scrollHeight;
        }
    }

    function createMessageBubble(text, sender = "You", fileName = null) {
        const bubble = document.createElement('div');
        bubble.className = `bubble ${sender === "You" ? "right" : "left"}`;
        bubble.style.maxWidth = "50%";
        bubble.style.wordWrap = "break-word";

        const label = document.createElement('div');
        label.className = "label";
        label.textContent = sender;

        const message = document.createElement('div');
        message.className = "text";
        message.style.whiteSpace = "pre-wrap";
        message.style.display = "flex";
        message.style.flexDirection = "column";

        const textSpan = document.createElement("span");
        textSpan.innerHTML = text;
        message.appendChild(textSpan);

        if (sender !== "You" && fileName) {
            const iconContainer = document.createElement('div');
            iconContainer.style.marginTop = "10px";
            iconContainer.style.display = "flex";
            iconContainer.style.justifyContent = "flex-end";
            iconContainer.style.gap = "15px";

            const downloadLink = document.createElement('a');
            downloadLink.href = fileName;
            downloadLink.target = "_blank";
            downloadLink.download = "summary.pdf";
            const downloadIcon = document.createElement("i");
            downloadIcon.className = "fa-solid fa-file-arrow-down";
            downloadIcon.style.fontSize = "18px";
            downloadIcon.style.cursor = "pointer";
            downloadLink.appendChild(downloadIcon);
            iconContainer.appendChild(downloadLink);

            message.appendChild(iconContainer);
        }

        bubble.appendChild(label);
        bubble.appendChild(message);
        convo.appendChild(bubble);
        convo.scrollTop = convo.scrollHeight;
        return bubble;
    }

    async function handleSubmit() {
        if (!selectedFile) {
            alert("Please upload a file first");
            return;
        }

        const isSummarizeMode = document.querySelector('input[name="mode"]:checked').value === 'Summarize';
        const endpoint = isSummarizeMode ? '/Summarization/summarize/' : '/Summarization/imagecaption/';
        const thinkingText = isSummarizeMode ? 'Processing document πŸ“„... <div class="loader"></div>' : "Generating caption πŸ–ΌοΈ ... <div class='loader'></div>";
        const senderName = "Aidan";

        const thinkingBubble = createMessageBubble(thinkingText, senderName);

        const formData = new FormData();
        formData.append('file', selectedFile);
        if (isSummarizeMode) formData.append('length', summarizeRadio.selectedItem);

        try {
            const response = await fetch(endpoint, {
                method: 'POST',
                body: formData
            });

            if (!response.ok) {
                let errorMessage = 'Request failed';
                try {
                    const error = await response.json();
                    errorMessage = error.detail || error.error || errorMessage;
                } catch (e) {}
                throw new Error(errorMessage);
            }

            const result = await response.json();
            thinkingBubble.remove();

            if (isSummarizeMode) {
                createMessageBubble(
                    result.summary || "No summary generated.",
                    "Aidan",
                    result.pdfUrl
                );
            } else {
                createMessageBubble(
                    result.caption || result.answer || "No caption generated.",
                    "Aidan",
                    null
                );
            }
        } catch (error) {
            thinkingBubble.remove();
            createMessageBubble(`⚠️ Error: ${error.message}`, "Aidan");
        } finally {
            selectedFile = null;
        }
    }

    const style = document.createElement('style');
    style.textContent = `
        .loader {
            display: inline-block;
            border: 2px solid #f3f3f3;
            border-top: 2px solid #3b82f6;
            border-radius: 50%;
            width: 16px;
            height: 16px;
            animation: spin 1s linear infinite;
        }
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
    `;
    document.head.appendChild(style);

    var backarrow = document.querySelector(".fa-arrow-left");
    backarrow.addEventListener('click', function () {
        window.location.href = '/';
    });
}); */