package model

import "fmt"

func GetTemplate1(streamerID int, donatHost, ttsHost string) string {
	style := `body {
        margin: 0;
        padding: 0;
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: flex-start;
        background-color: #000;
        font-family: Arial, sans-serif;
    }
    #content {
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 100%;
        max-width: 1920px;
        margin: 20px auto;
        gap: 20px;
    }
    #content img {
        width: 100%;
        height: auto;
        max-height: 90vh;
        object-fit: contain;
        border-radius: 15px;
    }
    .text-container, .donation-user {
        opacity: 0;
        animation: fadeIn 2s forwards;
    }
    .text-container {
        display: flex;
        align-items: center;
        gap: 20px;
        font-size: 40px;
        color: #fff;
        text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    }
    .donation-user {
        font-size: 35px;
        color: #FFD700;
        text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    }
    .donation-text {
        margin: 0;
    }
    .donation-amount {
        color: #4CAF50;
        font-weight: bold;
        padding: 5px 15px;
        background: rgba(0,0,0,0.7);
        border-radius: 8px;
    }
    @keyframes fadeIn {
        to { opacity: 1; }
    }`

	script := fmt.Sprintf(`
let widgetUrl = 'https://%s/api';
let ttsUrl = 'https://%s/api/tts';

function startHeartbeat(streamerID) {
    setInterval(async () => {
        try {
            await fetch(widgetUrl + '/widget/update-streamer-online/' + streamerID, {
                method: 'PUT',
                headers: {'Content-Type': 'application/json'}
            });
        } catch (error) {
            console.error('Heartbeat error:', error);
        }
    }, 10000);
}

function createTextWithAmount(text, amount) {
    const container = document.createElement('div');
    container.className = 'text-container';

    const textElem = document.createElement('p');
    textElem.className = 'donation-text';
    textElem.textContent = text;

    const amountElem = document.createElement('div');
    amountElem.className = 'donation-amount';
    amountElem.textContent = amount + '₽';

    container.appendChild(textElem);
    container.appendChild(amountElem);
    return container;
}

function createTextElement(text) {
    const container = document.createElement('div');
    container.className = 'text-container';
    const textElem = document.createElement('p');
    textElem.className = 'donation-text';
    textElem.textContent = text;
    container.appendChild(textElem);
    return container;
}

async function getDonatInfo(streamerID) {
    try {
        let response = await fetch(widgetUrl + '/widget/get-donat-for-playing/' + streamerID);
        return response.ok ? await response.json() : null;
    } catch (error) {
        console.error('Fetch error (getDonatInfo):', error);
        return null;
    }
}

function playAudio(url, volume, signal) {
    return new Promise((resolve, reject) => {
        if (signal?.aborted) return reject(new DOMException('Aborted', 'AbortError'));

        const audio = new Audio(url);
        audio.volume = volume;
        let resolved = false;

        const cleanup = () => {
            resolved = true;
            audio.pause();
            audio.src = "";
            audio.removeEventListener('ended', onEnded);
            audio.removeEventListener('error', onError);
        };

        const onAbort = () => {
            if (!resolved) cleanup();
            reject(new DOMException('Aborted', 'AbortError'));
        };

        const onEnded = () => {
            cleanup();
            resolve(audio);
        };

        const onError = (event) => {
            cleanup();
            reject(event.error || new Error('Audio playback failed'));
        };

        signal?.addEventListener('abort', onAbort, { once: true });
        audio.addEventListener('ended', onEnded, { once: true });
        audio.addEventListener('error', onError, { once: true });

        audio.play().catch(err => {
            cleanup();
            if (err.name === 'AbortError' && signal?.aborted) {
                reject(new DOMException('Aborted', 'AbortError'));
            } else {
                reject(err);
            }
        });
    });
}

async function playSpeech(text, voiceSettings, signal) {
    if (signal?.aborted) throw new DOMException('Aborted', 'AbortError');
    if (!voiceSettings.voice_enabled) return null;

    const requestBody = {
        text: text,
        speed: (voiceSettings.voice_speed || 'medium').toLowerCase(),
        scenery: voiceSettings.scenery || 'default',
        sound_percent: voiceSettings.voice_sound_percent || 100,
        min_price: voiceSettings.min_price || 0,
        languages: voiceSettings.languages || ['ru']
    };

    try {
        const response = await fetch(ttsUrl + '/generate', {
            method: 'POST',
            headers: {'Content-Type': 'application/json'},
            body: JSON.stringify(requestBody),
            signal: signal
        });
        
        if (!response.ok) throw new Error('TTS API error: ' + response.status);
        const blob = await response.blob();
        const objectUrl = URL.createObjectURL(blob);
        const audio = new Audio(objectUrl);
        audio.volume = (voiceSettings.voice_sound_percent || 100) / 100;

        return new Promise((resolve, reject) => {
            audio.addEventListener('ended', () => {
                URL.revokeObjectURL(objectUrl);
                resolve(audio);
            }, { once: true });

            audio.addEventListener('error', (err) => {
                URL.revokeObjectURL(objectUrl);
                reject(err);
            }, { once: true });

            audio.play().catch(reject);
        });
    } catch (error) {
        throw error;
    }
}

async function playMedia(donat, voiceSettings) {
    const controller = new AbortController();
    let timeoutId;

    try {
        const mediaOperation = (async () => {
            if (donat.play_content && donat.audio_link) {
                await playAudio(donat.audio_link, (voiceSettings.voice_sound_percent || 100) / 100, controller.signal);
                if (donat.text) await playSpeech(donat.text, voiceSettings, controller.signal);
            } else if (donat.text && donat.voice_enabled) {
                await playSpeech(donat.text, voiceSettings, controller.signal);
            }
        })();

        const timeoutPromise = new Promise((_, reject) => {
            timeoutId = setTimeout(() => {
                controller.abort();
                reject(new DOMException('Timeout', 'AbortError'));
            }, (donat.duration || 5) * 1000);
        });

        await Promise.race([mediaOperation, timeoutPromise]);
    } finally {
        clearTimeout(timeoutId);
        controller.abort();
    }
}

function clearContainer(container) {
    while (container.firstChild) {
        container.removeChild(container.firstChild);
    }
}

async function widgetView() {
    const streamerID = '%v';
    startHeartbeat(streamerID);
    const contentDiv = document.getElementById('content');

    while (true) {
        const iterationStart = Date.now();
        let currentDonat = null;

        try {
            currentDonat = await getDonatInfo(streamerID);
            if (!currentDonat || Object.keys(currentDonat).length === 0) {
                await new Promise(r => setTimeout(r, 5000));
                continue;
            }

            clearContainer(contentDiv);

            if (currentDonat.image_link) {
                const img = document.createElement('img');
                img.src = currentDonat.image_link;
                contentDiv.appendChild(img);
            }

            if (currentDonat.show_name && currentDonat.donat_user) {
                const userElem = document.createElement('div');
                userElem.className = 'donation-user';
                userElem.textContent = currentDonat.donat_user;
                contentDiv.appendChild(userElem);
            }

            if (currentDonat.show_text && currentDonat.text) {
                const textElem = currentDonat.amount ? 
                    createTextWithAmount(currentDonat.text, currentDonat.amount) : 
                    createTextElement(currentDonat.text);
                contentDiv.appendChild(textElem);
            }

            const voiceSettings = {
                voice_speed: currentDonat.voice_speed,
                scenery: currentDonat.scenery,
                voice_sound_percent: currentDonat.voice_sound_percent,
                min_price: currentDonat.min_price,
                languages: currentDonat.languages,
                voice_enabled: currentDonat.voice_enabled
            };
            
            await playMedia(currentDonat, voiceSettings);

            if (currentDonat.order_id) {
                await fetch(widgetUrl + '/widget/donat/viewed', {
                    method: 'POST',
                    headers: {'Content-Type': 'application/json'},
                    body: JSON.stringify({order_id: currentDonat.order_id}),
                });
            }
        } catch (error) {
            console.error('Ошибка обработки доната:', error);
        }

        // Очистка контента после отображения
        const elapsedMs = Date.now() - iterationStart;
        const remainingTimeMs = Math.max(0, (currentDonat?.duration || 5) * 1000 - elapsedMs);
        
        if (remainingTimeMs > 0) {
            await new Promise(r => setTimeout(r, remainingTimeMs));
        }
        clearContainer(contentDiv); // Ключевое изменение здесь
    }
}

document.addEventListener('DOMContentLoaded', widgetView);`, donatHost, ttsHost, streamerID)

	template := fmt.Sprintf(`<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <style>%s</style>
    </head>
    <body>
        <div id='content'></div>
        <script>%s</script>
    </body>
</html>`, style, script)

	return template
}