let hls = null;

function playUrlInPreviewer(url) {
    const previewVideo = document.getElementById('preview');
    if (!url || !previewVideo) return;

    if (hls) {
        hls.destroy();
    }

    if (url.endsWith('.m3u8')) {
        if (Hls.isSupported()) {
            hls = new Hls();
            hls.loadSource(url);
            hls.attachMedia(previewVideo);
            hls.on(Hls.Events.MANIFEST_PARSED, () => {
                previewVideo.play().catch(e => console.log("Autoplay foi bloqueado."));
            });
        } else if (previewVideo.canPlayType('application/vnd.apple.mpegurl')) {
            previewVideo.src = url;
            previewVideo.play().catch(e => console.log("Autoplay foi bloqueado."));
        }
    } else {
        previewVideo.src = url;
        previewVideo.play().catch(e => console.log("Autoplay foi bloqueado."));
    }
}

function playVideo(url) {
    const streamUrlInput = document.getElementById('stream-url');
    if(streamUrlInput) {
         streamUrlInput.value = url;
    }
    playUrlInPreviewer(url);
    
    const videoSection = document.querySelector('.video-section');
    if(videoSection){
        videoSection.scrollIntoView({ behavior: 'smooth' });
    }
}

async function updateConversionProgress() {
    const convertingRows = document.querySelectorAll('tr[data-status="converting"]');
    if (convertingRows.length === 0) return;

    for (const row of convertingRows) {
        const streamId = row.dataset.streamId;
        if (!streamId) continue;

        try {
            const response = await fetch(`api.php?action=get_conversion_progress&id=${streamId}`);
            if (!response.ok) continue;

            const result = await response.json();
            if (result.success && result.progress !== undefined) {
                const progressBar = row.querySelector('.progress-bar');
                if (progressBar) {
                    progressBar.style.width = `${result.progress}%`;
                }

                if (result.progress >= 100) {
                    setTimeout(() => location.reload(), 1000);
                }
            }
        } catch (err) {
            console.error('Erro ao atualizar progresso:', err);
        }
    }
}

async function sendToDropbox(id, button) {
    const tokenInput = document.getElementById('dropbox-token');
    const token = tokenInput ? tokenInput.value : '';
    if (!token) {
        showToast('Por favor, insira seu token de acesso do Dropbox na página do conversor.', 'error');
        return;
    }

    button.disabled = true;
    const originalHtml = button.innerHTML;
    button.innerHTML = '...';
    showToast('Enviando para o Dropbox...', 'info');

    try {
        const response = await fetch('api.php?action=send_to_dropbox', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({ id, token }),
        });
        const result = await response.json();
        if (!response.ok) throw new Error(result.error || 'Erro ao enviar para o Dropbox');

        showToast(result.message, 'success');
        button.innerHTML = '✅';

    } catch (err) {
        showToast(err.message, 'error');
        button.disabled = false;
        button.innerHTML = originalHtml;
    }
}

async function deleteVideo(id, button) {
    if (!confirm('Deseja deletar este vídeo?')) return;

    button.disabled = true;
    showToast('Apagando...', 'info');

    try {
        const response = await fetch('api.php?action=delete', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({ id }),
        });
        const result = await response.json();
        if (!response.ok) throw new Error(result.error || 'Erro ao apagar');

        showToast(result.message, 'success');
        button.closest('tr').remove();

    } catch (err) {
        showToast(err.message, 'error');
        button.disabled = false;
    }
}

function showToast(message, type = 'info') {
    const container = document.getElementById('toast-container');
    const toast = document.createElement('div');
    toast.className = `toast toast-${type}`;
    toast.textContent = message;
    container.appendChild(toast);

    setTimeout(() => toast.classList.add('show'), 10);
    
    setTimeout(() => {
        toast.classList.remove('show');
        setTimeout(() => toast.remove(), 400);
    }, 4000);
}

document.addEventListener('DOMContentLoaded', () => {
    const streamUrlInput = document.getElementById('stream-url');
    if (streamUrlInput && streamUrlInput.value) {
        playUrlInPreviewer(streamUrlInput.value);
    }
    
    if(streamUrlInput) {
        streamUrlInput.addEventListener('input', () => {
            playUrlInPreviewer(streamUrlInput.value);
        });
    }
    
    const saveBtn = document.getElementById('save-btn');
    if(saveBtn) {
         saveBtn.addEventListener('click', async () => {
             const url = document.getElementById('stream-url').value;
             const filename = document.getElementById('filename').value;
             const token = document.getElementById('dropbox-token').value;

             if (!url || !filename) {
                 showToast('Preencha a URL e o nome do arquivo.', 'error');
                 return;
             }
             
             saveBtn.disabled = true;
             saveBtn.innerHTML = 'Salvando...';

             try {
                 const saveResponse = await fetch('api.php', {
                     method: 'POST',
                     headers: { 'Content-Type': 'application/json' },
                     body: JSON.stringify({ action: 'save', url, filename, token }),
                 });
                 const saveResult = await saveResponse.json();
                 if (!saveResponse.ok) throw new Error(saveResult.error || 'Erro ao salvar o stream');
                 
                 showToast(saveResult.message, 'success');
                 setTimeout(() => location.href = '?page=converter', 1500);

             } catch (err) {
                 showToast(err.message, 'error');
                 saveBtn.disabled = false;
                 saveBtn.innerHTML = '💾 Salvar e Converter';
             }
        });
    }

    updateConversionProgress();
    setInterval(updateConversionProgress, 5000);
});