var baseUrl = getProtocol() + getUrl();
var currentModelPage = 1;
var vitsSpeakersCount = 0;
var w2v2SpeakersCount = 0;
var bertVits2SpeakersCount = 0;
var GPTSoVitsSpeakersCount = 0
var selectedFile = null;

function speakersInit() {
    $.ajax({
        url: '/voice/speakers',
        type: 'GET',
        dataType: 'json',
        success: function (data) {
            vitsSpeakersCount = data['VITS'].length;
            w2v2SpeakersCount = data['W2V2-VITS'].length;
            bertVits2SpeakersCount = data['BERT-VITS2'].length;
            GPTSoVitsSpeakersCount = data['GPT-SOVITS'].length;
            showModelContentBasedOnStatus();
        },
        error: function (xhr, status, error) {
            console.error('Request failed with status', status, 'and error', error);
        }
    });
}

$(function () {
    $('[data-toggle="tooltip"]').tooltip()
})

function getProtocol() {
    return 'https:' == location.protocol ? "https://" : "http://";
}

function getUrl() {
    let url = window.location.host;
    return url;
}


function setBaseUrl() {
    let text = document.getElementById("input_text" + currentModelPage).value;
    let id = document.getElementById("input_id" + currentModelPage).value;

    let vits_link = document.getElementById("vits_link");
    let speakers_link = document.getElementById("speakers_link");

    let vits_url = baseUrl + "/voice/vits?text=" + text + "&id=" + id;
    let speakers_url = baseUrl + "/voice/speakers";

    vits_link.href = vits_url;
    vits_link.textContent = vits_url;

    speakers_link.href = speakers_url;
    speakers_link.textContent = speakers_url;
}

function getLink() {
    let text = document.getElementById("input_text" + currentModelPage).value;
    let id = document.getElementById("input_id" + currentModelPage).value;
    let format = document.getElementById("input_format" + currentModelPage).value;
    let lang = document.getElementById("input_lang" + currentModelPage).value;
    let api_key = document.getElementById("apiKey").value;
    let segment_size = document.getElementById("input_segment_size" + currentModelPage).value;


    let url = baseUrl;
    let length = null;
    let noise = null;
    let noisew = null;
    let streaming = null;
    let sdp_ratio = null;
    let emotion = null;
    let text_prompt = "";
    let style_text = "";
    let style_weight = "";
    let prompt_text = null;
    let prompt_lang = null;
    let preset = null;
    let top_k = null;
    let top_p = null;
    let temperature = null;
    let batch_size = null;
    let speed = null;

    if (currentModelPage == 1 || currentModelPage == 2 || currentModelPage == 3) {
        length = document.getElementById("input_length" + currentModelPage).value;
        noise = document.getElementById("input_noise" + currentModelPage).value;
        noisew = document.getElementById("input_noisew" + currentModelPage).value;
    }

    if (currentModelPage == 1) {
        streaming = document.getElementById('streaming1');
        url += "/voice/vits?id=" + id;
    } else if (currentModelPage == 2) {
        emotion = document.getElementById('emotion').value;
        url += "/voice/w2v2-vits?id=" + id + "&emotion=" + emotion;
    } else if (currentModelPage == 3) {
        sdp_ratio = document.getElementById("input_sdp_ratio").value;
        streaming = document.getElementById('streaming3');
        emotion = document.getElementById('input_emotion3').value;
        text_prompt = document.getElementById('input_text_prompt3').value;
        style_text = document.getElementById('input_style_text3').value;
        style_weight = document.getElementById('input_style_weight3').value;
        url += "/voice/bert-vits2?id=" + id;
    } else if (currentModelPage == 4) {
        streaming = document.getElementById('streaming4');
        prompt_text = document.getElementById('input_prompt_text4').value;
        prompt_lang = document.getElementById('input_prompt_lang4').value;
        preset = document.getElementById('input_preset4').value;
        top_k = document.getElementById('input_top_k4').value;
        top_p = document.getElementById('input_top_p4').value;
        temperature = document.getElementById('input_temperature4').value;
        batch_size = document.getElementById('input_batch_size4').value;
        // speed = document.getElementById('input_speed4').value;
        url += "/voice/gpt-sovits?id=" + id;

    } else {
        console.error("Invalid model page: ", currentModelPage);
        return null;
    }
    if (format != "" && format != null) {
        url += "&format=" + format;
    }
    if (lang != "" && lang != null) {
        url += "&lang=" + lang;
    }
    if (length != "" && length != null) {
        url += "&length=" + length;
    }
    if (noise != "" && noise != null) {
        url += "&noise=" + noise;
    }
    if (noisew != "" && noisew != null) {
        url += "&noisew=" + noisew;
    }
    if (segment_size != "" && segment_size != null) {
        url += "&segment_size=" + segment_size;
    }

    if (currentModelPage == 1) {
        if (streaming.checked)
            url += '&streaming=true';
    } else if (currentModelPage == 3) {
        if (streaming.checked)
            url += '&streaming=true';
        if (sdp_ratio != "")
            url += "&sdp_ratio=" + sdp_ratio;
        // length_zh = document.getElementById("input_length_zh3").value;
        // if (length_zh != "")
        //     url += "&length_zh=" + length_zh;
        // length_ja = document.getElementById("input_length_ja3").value;
        // if (length_ja != "")
        //     url += "&length_ja=" + length_ja;
        // length_en = document.getElementById("input_length_en3").value;
        // if (length_en != "")
        //     url += "&length_en=" + length_en;
        if (emotion !== null && emotion !== "")
            url += "&emotion=" + emotion;
        if (text_prompt !== null && text_prompt !== "")
            url += "&text_prompt=" + text_prompt;
        if (style_text !== null && style_text !== "")
            url += "&style_text=" + style_text;
        if (style_weight !== null && style_weight !== "")
            url += "&style_weight=" + style_weight;
    } else if (currentModelPage == 4) {
        if (streaming.checked)
            url += '&streaming=true';
        if (prompt_lang !== null && prompt_lang !== "")
            url += "&prompt_lang=" + prompt_lang;
        if (prompt_text !== null && prompt_text !== "")
            url += "&prompt_text=" + prompt_text;
        if (preset !== null && preset !== "")
            url += "&preset=" + preset;
        if (top_k !== null && top_k !== "")
            url += "&top_k=" + top_k;
        if (top_p !== null && top_p !== "")
            url += "&top_p=" + top_p;
        if (temperature !== null && temperature !== "")
            url += "&temperature=" + temperature;
        if (batch_size !== null && batch_size !== "")
            url += "&batch_size=" + batch_size;
        if (speed !== null && speed !== "")
            url += "&speed=" + speed;
    }

    if (api_key != "") {
        url += "&api_key=" + api_key
    }

    url += "&text=" + text
    return url;
}

function updateLink() {
    let url = getLink();
    let link = document.getElementById("vits_link");
    link.href = url;
    link.textContent = url;
}

function setAudioSourceByGet() {
    if (currentModelPage == 1 && vitsSpeakersCount <= 0) {
        alert("未加载VITS模型");
        return;
    }
    if (currentModelPage == 2 && w2v2SpeakersCount <= 0) {
        alert("未加载W2V2-VITS模型");
        return;
    }
    if (currentModelPage == 3 && bertVits2SpeakersCount <= 0) {
        alert("未加载Bert-VITS2模型");
        return;
    }
    let url = getLink();

    // Add a timestamp parameter to prevent browser caching
    let timestamp = new Date().getTime();
    url += '&t=' + timestamp;

    let audioPlayer = document.getElementById("audioPlayer" + currentModelPage);
    audioPlayer.src = url;
    audioPlayer.play();
}

function setAudioSourceByPost() {
    if (currentModelPage == 1 && vitsSpeakersCount <= 0) {
        alert("未加载VITS模型");
        return;
    }
    if (currentModelPage == 2 && w2v2SpeakersCount <= 0) {
        alert("未加载W2V2-VITS模型");
        return;
    }
    if (currentModelPage == 3 && bertVits2SpeakersCount <= 0) {
        alert("未加载Bert-VITS2模型");
        return;
    }

    let text = $("#input_text" + currentModelPage).val();
    let id = $("#input_id" + currentModelPage).val();
    let format = $("#input_format" + currentModelPage).val();
    let lang = $("#input_lang" + currentModelPage).val();

    let segment_size = $("#input_segment_size" + currentModelPage).val();
    let api_key = $("#apiKey").val();

    let formData = new FormData();
    formData.append('text', text);
    formData.append('id', id);
    formData.append('format', format);
    formData.append('lang', lang);
    formData.append('segment_size', segment_size);

    let url = "";
    let length = null;
    let noise = null;
    let noisew = null;
    let streaming = null;
    let sdp_ratio = null;
    // let length_zh = 0;
    // let length_ja = 0;
    // let length_en = 0;
    let emotion = null;
    let text_prompt = "";
    let style_text = "";
    let style_weight = "";
    let prompt_text = null;
    let prompt_lang = null;
    let preset = null;
    let top_k = null;
    let top_p = null;
    let temperature = null;
    let batch_size = null;
    let speed = null;

    let headers = {};

    if (currentModelPage == 1 || currentModelPage == 2 || currentModelPage == 3) {
        length = $("#input_length" + currentModelPage).val();
        noise = $("#input_noise" + currentModelPage).val();
        noisew = $("#input_noisew" + currentModelPage).val();
        formData.append('length', length);
        formData.append('noise', noise);
        formData.append('noisew', noisew);
    }

    if (currentModelPage == 1) {
        url = baseUrl + "/voice/vits";
        streaming = $("#streaming1")[0];
    } else if (currentModelPage == 2) {
        emotion = $("#emotion").val();
        url = baseUrl + "/voice/w2v2-vits";
    } else if (currentModelPage == 3) {
        sdp_ratio = $("#input_sdp_ratio").val();
        url = baseUrl + "/voice/bert-vits2";
        streaming = $("#streaming3")[0];
        // length_zh = $("#input_length_zh3").val();
        // length_ja = $("#input_length_ja3").val();
        // length_en = $("#input_length_en3").val();
        emotion = $("#input_emotion3").val();
        text_prompt = $("#input_text_prompt3").val();
        style_text = $("#input_style_text3").val();
        style_weight = $("#input_style_weight3").val();
    } else if (currentModelPage == 4) {
        url = baseUrl + "/voice/gpt-sovits";
        streaming = $("#streaming4")[0];
        prompt_text = $("#input_prompt_text4").val();
        prompt_lang = $("#input_prompt_lang4").val();
        preset = $("#input_preset4").val();
        top_k = $("#input_top_k4").val();
        top_p = $("#input_top_p4").val();
        temperature = $("#input_temperature4").val();
        batch_size = $("#input_batch_size4").val();
        // speed = $("#input_speed4").val();
    }


    // 添加其他配置参数到 FormData
    if ((currentModelPage == 1 || currentModelPage == 3 || currentModelPage == 4) && streaming.checked) {
        formData.append('streaming', true);
    }
    if (currentModelPage == 3 && sdp_ratio != "") {
        formData.append('sdp_ratio', sdp_ratio);
    }
    // if (currentModelPage == 3 && length_zh != "") {
    //     formData.append('length_zh', length_zh);
    // }
    // if (currentModelPage == 3 && length_ja != "") {
    //     formData.append('length_ja', length_ja);
    // }
    // if (currentModelPage == 3 && length_en != "") {
    //     formData.append('length_en', length_en);
    // }
    if ((currentModelPage == 2 || currentModelPage == 3) && emotion != null && emotion != "") {
        formData.append('emotion', emotion);
    }
    if ((currentModelPage == 3 || currentModelPage == 4) && selectedFile) {
        formData.append('reference_audio', selectedFile);
    }
    if (currentModelPage == 3 && text_prompt) {
        formData.append('text_prompt', text_prompt);
    }
    if (currentModelPage == 3 && style_text) {
        formData.append('style_text', style_text);
    }
    if (currentModelPage == 3 && style_weight) {
        formData.append('style_weight', style_weight);
    }
    if (api_key !== "") {
        headers['X-API-KEY'] = api_key;
    }
    if (currentModelPage == 4 && prompt_text) {
        formData.append('prompt_text', prompt_text);
    }

    if (currentModelPage == 4 && prompt_lang) {
        formData.append('prompt_lang', prompt_lang);
    }
    if (currentModelPage == 4 && preset) {
        formData.append('preset', preset);
    }
    if (currentModelPage == 4 && top_k) {
        formData.append('top_k', top_k);
    }
    if (currentModelPage == 4 && top_p) {
        formData.append('top_p', top_p);
    }
    if (currentModelPage == 4 && temperature) {
        formData.append('temperature', temperature);
    }
    if (currentModelPage == 4 && batch_size) {
        formData.append('batch_size', batch_size);
    }
    if (currentModelPage == 4 && speed) {
        formData.append('speed', speed);
    }

    let downloadButton = document.getElementById("downloadButton" + currentModelPage);

    // 发送post请求
    $.ajax({
        url: url,
        method: 'POST',
        data: formData,
        processData: false,
        contentType: false,
        responseType: 'blob',
        xhrFields: {
            responseType: 'blob'
        },
        headers: headers,
        success: function (response, status, xhr) {
            let blob = new Blob([response], {type: 'audio/wav'});
            let audioPlayer = document.getElementById("audioPlayer" + currentModelPage);
            let audioFileName = getFileNameFromResponseHeader(xhr);
            audioPlayer.setAttribute('data-file-name', audioFileName);
            audioPlayer.src = URL.createObjectURL(blob);
            audioPlayer.load();
            audioPlayer.play();

            downloadButton.disabled = false;
        },
        error: function (error) {
            // console.error('Error:', error);
            let message = "无法获取音频数据，请查看日志！";
            console.log(message)
            alert(message);
            downloadButton.disabled = true;
        }
    });
}


function getFileNameFromResponseHeader(xhr) {
    var contentDispositionHeader = xhr.getResponseHeader('Content-Disposition');
    var matches = contentDispositionHeader.match(/filename=(.+)$/);
    return matches ? matches[1] : 'audio.wav';  // 如果无法从响应头获取文件名，则使用默认值
}

function downloadAudio() {
    let audioPlayer = document.getElementById("audioPlayer" + currentModelPage);
    let audioFileName = audioPlayer.getAttribute('data-file-name') || 'audio.wav';

    let downloadLink = document.createElement('a');
    downloadLink.href = audioPlayer.src;

    downloadLink.download = audioFileName;

    document.body.appendChild(downloadLink);
    downloadLink.click();
    document.body.removeChild(downloadLink);
}


function showContent(index) {
    const panes = document.querySelectorAll(".content-pane");
    const buttons = document.querySelectorAll(".tab-button");
    currentModelPage = index + 1;

    for (let i = 0; i < panes.length; i++) {
        if (i === index) {
            panes[i].classList.add("active");
            buttons[i].classList.add("active");

        } else {
            panes[i].classList.remove("active");
            buttons[i].classList.remove("active");
        }
    }
    updateLink();
}

function showModelContentBasedOnStatus() {
    if (vitsSpeakersCount > 0) {
        showContent(0);
    } else if (w2v2SpeakersCount > 0) {
        showContent(1);
    } else if (bertVits2SpeakersCount > 0) {
        showContent(2);
    } else if (GPTSoVitsSpeakersCount > 0) {
        showContent(3);
    } else {
        showContent(0);
    }
}

function updatePlaceholders(config, page) {
    for (let key in config) {
        if (key == "presets") {
            let data = config[key];
            let selectElement = $("#input_preset" + page);
            selectElement.empty(); // 清除现有的选项
            let isFirst = true;
            for (let name in data) {
                let preset_value = data[name];
                let preset = `[${name}] audio: ${preset_value["refer_wav_path"]}`;
                // 创建preset
                let option = $("<option>", {
                    value: name,
                    text: preset,
                    'data-prompt-lang': preset_value["prompt_lang"],
                    'data-prompt-text': preset_value["prompt_text"]
                });
                selectElement.append(option);
                // 自动填入第一个preset的参考文本
                if (isFirst) {
                    $("#input_prompt_lang" + page).val(preset_value["prompt_lang"]);
                    $("#input_prompt_text" + page).val(preset_value["prompt_text"]);
                    isFirst = false;
                }
            }
            // 当选择改变时更新输入预设的值
            selectElement.change(function () {
                let selectedOption = $(this).find(":selected");
                let promptLang = selectedOption.data("prompt-lang");
                let promptText = selectedOption.data("prompt-text");
                $("#input_prompt_lang" + page).val(promptLang);
                $("#input_prompt_text" + page).val(promptText);
            });
        } else {
            $("#input_" + key + page).attr("placeholder", config[key]);
        }
    }
}


function setDefaultParameter() {
    $.ajax({
        url: "/voice/default_parameter",
        method: 'POST',
        responseType: 'json',
        success: function (response) {
            default_parameter = response;
            updatePlaceholders(default_parameter.vits_config, 1);
            updatePlaceholders(default_parameter.w2v2_vits_config, 2);
            updatePlaceholders(default_parameter.bert_vits2_config, 3);
            updatePlaceholders(default_parameter.gpt_sovits_config, 4);
        },
        error: function (error) {
        }
    });
}

document.addEventListener('DOMContentLoaded', function () {
    var apiKeyIcon = document.getElementById('apiKeyIcon');
    var apiKeyInput = document.getElementById('apiKeyInput');
    var apiKeyField = document.getElementById('apiKey');

    // 检查 apiKey 是否已存储在 localStorage 中
    var storedApiKey = localStorage.getItem('apiKey');
    if (storedApiKey) {
        apiKeyField.value = storedApiKey;
    }

    // 点击图标时切换 apiKeyInput 的可见性
    apiKeyIcon.addEventListener('click', function (event) {
        apiKeyInput.style.display = apiKeyInput.style.display === 'flex' ? 'none' : 'flex';
        // 停止事件传播，防止文档点击事件立即隐藏输入框
        event.stopPropagation();
    });

    // 在点击其他地方时隐藏 apiKeyInput
    document.addEventListener('click', function () {
        apiKeyInput.style.display = 'none';
    });

    // 防止点击输入框时输入框被隐藏
    apiKeyInput.addEventListener('click', function (event) {
        event.stopPropagation();
    });
});

function saveApiKey() {
    var apiKeyField = document.getElementById('apiKey');
    var apiKey = apiKeyField.value;

    // 将 apiKey 保存到 localStorage 中
    localStorage.setItem('apiKey', apiKey);

    document.getElementById('apiKeyInput').style.display = 'none';
}


$(document).ready(function () {
    speakersInit();
    setDefaultParameter();
    setBaseUrl();

    $('.reference_audio').fileinput({
        language: 'zh',
        dropZoneEnabled: true,
        dropZoneTitle: "上传参考音频",
        uploadAsync: false,
        maxFileCount: 1,
        showPreview: false,
        showUpload: false
    }).on("fileloaded", function (event, file, previewId, index, reader) {
        selectedFile = file;
    }).on("filecleared", function (event) {
        selectedFile = null;
    });
});