app.py

import time
import os
import logging
from io import StringIO

import gradio as gr
import pandas as pd
from pypinyin import lazy_pinyin
from gradio_i18n import gettext, Translate

from api import generate_api, get_audio
from utils import get_length

# 翻译文件位置
trans_file = os.path.join(os.path.dirname(__file__),"i18n", "translations.json")

# 关闭aiohttp的DEBUG日志
logging.getLogger('aiohttp').setLevel(logging.WARNING)
logging.getLogger("gradio").setLevel(logging.WARNING)

# 带有时间的log
logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')


header = "header"

terms = "terms"

def load_characters_csv(lang):
    name = os.path.join(os.path.dirname(__file__), "i18n", f"characters_{lang}.csv")
    return pd.read_csv(name)

def update_all_characters(lang, current_all_characters):
    new_characters = load_characters_csv(lang)
    initial_characters = get_characters(kind="原神", all_characters=new_characters)
    return new_characters, initial_characters, gr.Gallery(value=[[char['头像'], char['名称']] for char in initial_characters], 
                                 show_label=False, elem_id="character_gallery", columns=[11], 
                                 object_fit="contain", height="auto", interactive=False, 
                                 allow_preview=False, selected_index=None)

def get_characters(query=None, page=1, per_page=400, kind="原神", lang="zh", all_characters=None):
    # 使用传入的 all_characters 参数
    filtered_characters = all_characters[all_characters["类别"] == kind]
    
    if query:
        # 使用拼音和汉字进行搜索
        filtered_characters = filtered_characters[
            filtered_characters['名称'].str.contains(query, case=False)
        ]
        if filtered_characters.empty and lang == 'zh':
            filtered_characters = all_characters[all_characters["类别"] == kind]
            filtered_characters = filtered_characters[
                filtered_characters['名称'].apply(lambda x: ''.join(lazy_pinyin(x))).str.contains(query, case=False)
            ]
    
    # 按名称分组，并选择每组的第一个记录
    unique_characters = filtered_characters.groupby('名称').first().reset_index().sort_values(by='id')
    
    # 应用分页
    start_index = (page - 1) * per_page
    end_index = start_index + per_page
    
    return unique_characters.iloc[start_index:end_index].to_dict('records')
        
async def generate(selected_character = None, selected_characters = [], text = "", lang="zh"):
    # print("-------",selected_character)
    # print("-------",selected_characters)
    if selected_character:
        characters = [selected_character] + selected_characters
    else:
        characters = selected_characters
    if not selected_character and not selected_characters:
        if lang == "zh":
            raise gr.Error("请先选择一个角色")
        elif lang == "en":
            raise gr.Error("Please select a character first")
        elif lang == "ja":
            raise gr.Error("まず、キャラクターを選択してください")
        elif lang == "ko":
            raise gr.Error("먼저 캐릭터를 선택하세요")
    voice_ids = [char.get("voice_id") for char in characters if char.get("voice_id")]
    
    if not voice_ids:
        raise gr.Error("所选角色没有关联的 voice_id")
    
    start_time = time.time()
    # 假设我们只使用第一个选择的角色的名称
    if voice_ids == "1":
        if lang == "zh":
            raise gr.Error("该角色暂未创建语音")
        elif lang == "en":
            raise gr.Error("The character has not been created yet")
        elif lang == "ja":
            raise gr.Error("そのキャラクターの音声はまだ作成されていません")
        elif lang == "ko":
            raise gr.Error("해당 캐릭터의 음성이 아직 생성되지 않았습니다")
        
    if text == "":
        if lang == "zh":
            raise gr.Error("请输入需要合成的文本")
        elif lang == "en":
            raise gr.Error("Please enter the text to be synthesized")
        elif lang == "ja":
            raise gr.Error("合成するテキストを入力してください")
        elif lang == "ko":
            raise gr.Error("합성할 텍스트를 입력하세요")
    
    if get_length(text) > 1024:
        if lang == "zh":
            raise gr.Error("长度请控制在1024个字符以内")
        elif lang == "en":
            raise gr.Error("The text length exceeds 1024 words")
        elif lang == "ja":
            raise gr.Error("テキストの長さが1024文字を超えています")
        elif lang == "ko":
            raise gr.Error("텍스트 길이가 1024자를 초과합니다")
    
    audio = await generate_api(voice_ids, text)
    end_time = time.time()
    if lang == "zh":
        cost_time = f"合成共花费{end_time - start_time:.2f}秒"
    elif lang == "en":
        cost_time = f"Total time spent synthesizing: {end_time - start_time:.2f} seconds"
    elif lang == "ja":
        cost_time = f"合成にかかった時間: {end_time - start_time:.2f}秒"
    elif lang == "ko":
        cost_time = f"합성에 소요된 시간: {end_time - start_time:.2f}초"
    if isinstance(audio, str):
        print(audio)
        raise gr.Error(audio)
    else:
        return audio, cost_time

def get_character_emotions(character, all_characters):
    # 从all_characters中筛选出与当前角色名称相同的所有记录
    character_records = all_characters[all_characters['名称'] == character['名称']]
    
    # 按情绪去重并获取完整的角色信息
    character_infos = character_records.drop_duplicates(subset=['情绪']).to_dict('records')
    
    # 如果没有找到角色信息，返回一个包含默认值的字典
    return character_infos if character_infos else [{"名称": character['名称'], "情绪": "默认情绪"}]

def update_character_info(character_name, emotion, current_character, all_characters):
    character_info = None
    if character_name and emotion:
        character_info = all_characters[(all_characters['名称'] == character_name) & (all_characters['情绪'] == emotion)]
    if character_name == "":
        return None
    character_info = character_info.iloc[0].to_dict()
    return character_info, all_characters

def add_new_voice(current_character, selected_characters, kind, lang, all_characters):
    if not current_character:
        if lang == "zh":
            raise gr.Error("请先选择一个角色")
        elif lang == "en":
            raise gr.Error("Please select a character first")
        elif lang == "ja":
            raise gr.Error("まず、キャラクターを選択してください")
        elif lang == "ko":
            raise gr.Error("먼저 캐릭터를 선택하세요")
    
    if len(selected_characters) >= 5:
        raise gr.Error("已达到最大选择数（5个）")
    
    # 检查是否已存在相同角色
    existing_char = next((char for char in selected_characters if char['名称'] == current_character['名称']), None)
    if existing_char:
        # 如果情绪不同,更新情绪
        if existing_char['情绪'] != current_character['情绪']:
            existing_char['情绪'] = current_character['情绪']
    else:
        selected_characters.insert(0, current_character)
    
    updated_characters = get_characters(kind=kind, lang=lang, all_characters=all_characters)
    # ! 取消gallery选中状态,返回个新的gallery是必要的，否则会保留上一次的选中状态。这里sonnet很喜欢改成返回一个数组，但这不能清空gallery的选中状态
    updated_gallery = gr.Gallery(value=[[char['头像'], char['名称']] for char in updated_characters], 
                                 show_label=False, elem_id="character_gallery", columns=[11], 
                                 object_fit="contain", height="auto", interactive=False, 
                                 allow_preview=False, selected_index=None)
    
    return (None, gr.update(value=""), gr.update(choices=[]), selected_characters, 
            updated_characters, updated_gallery, gr.update(visible=True), all_characters)

def update_selected_chars_display(selected_characters):
    updates = []
    for i, (name, emotion, _, row) in enumerate(selected_chars_rows):
        if i < len(selected_characters):
            char = selected_characters[i]
            updates.extend([
                gr.update(value=char['名称'], visible=True),
                gr.update(value=char['情绪'], visible=True),
                gr.update(visible=True),
                gr.update(visible=True)
            ])
        else:
            updates.extend([
                gr.update(value="", visible=False),
                gr.update(value="", visible=False),
                gr.update(visible=False),
                gr.update(visible=False)
            ])
    return updates

def remove_character(index, selected_characters):
    if 0 <= index < len(selected_characters):
        del selected_characters[index]  
    return selected_characters, gr.update(visible=True)

def update_gallery(kind, query, all_characters):
    updated_characters = get_characters(kind=kind, query=query, lang=lang, all_characters=all_characters)
    return updated_characters, [[char['头像'], char['名称']] for char in updated_characters], all_characters

def on_select(evt: gr.SelectData, characters, selected_characters, all_characters):
    # 如果没有选择角色，换人的时候清空
    if len(selected_characters) == 0:
        selected_characters = []
    
    selected = characters[evt.index]
    emotions = get_character_emotions(selected, all_characters)
    normal_index = 0
    for index, emotion in enumerate(emotions):
        if emotion["情绪"] == "正常" or emotion["情绪"] == "보통" or emotion["情绪"] == "normal":
            normal_index = index
            break
    
    default_emotion = emotions[normal_index]["情绪"] if emotions else ""
    default_voice_id = emotions[normal_index]["voice_id"] if emotions else ""
    
    character_dict = selected.copy()
    character_dict['情绪'] = default_emotion
    character_dict['voice_id'] = default_voice_id
    return selected["名称"], gr.Dropdown(choices=[emotion["情绪"] for emotion in emotions], value=default_emotion), character_dict, selected_characters

async def update_prompt_audio(current_character):
    if current_character:
        return await get_audio(current_character.get("voice_id"))
    else:
        return None

head = """
<title>Free Online Text to Speech (TTS) | Convert Text to Audio</title>
<meta name="description" content="Text to Speech(TTS) for free! 5-second voice cloning, no sign-up required.">
<meta name="keywords" content="text to speech, TTS, free TTS, online TTS, speech synthesis, voice generator">
"""

with gr.Blocks(title="Online Free TTS", theme=gr.themes.Soft(), head=head) as demo:
    gr.Markdown(
        "Online Free TTS(Text-to-Speech). Ultra-low latency, 5-second voice cloning."
    )
    lang = gr.Radio(choices=[("中文", "zh"), ("English", "en"), ("日本語", "ja"), ("한국인", "ko")], label=gettext("Language"), value="en", scale=1)
    all_characters_state = gr.State(load_characters_csv("en"))
    
    with Translate(trans_file, lang, placeholder_langs=["en", "zh", "ja", "ko"]):
        gr.Markdown(
            value=gettext(header))
        with gr.Group():
            initial_characters = get_characters(kind="原神", lang="zh", all_characters=all_characters_state.value)
            characters = gr.State(initial_characters)
            selected_characters = gr.State([])
            current_character = gr.State(None)
            
            with gr.Blocks():
                with gr.Row():
                    # kind = gr.Dropdown(choices=["原神", "崩坏星穹铁道","鸣潮","明日方舟","其他"], value="原神", label="请选择角色类别")
                    choices = [(gettext("Genshin Impact"),"原神"), 
                               (gettext("Honkai: Star Rail"),"崩坏星穹铁道"), 
                               (gettext("ZenZenless Zone Zero"),"绝区零"),
                               (gettext("Wuthering Waves"),"鸣潮")]
                    kind = gr.Dropdown(choices=choices, value="原神", label=gettext("Select character category"))
                    query = gr.Textbox(label=gettext("Search character"), value="", lines=1, max_lines=1, interactive=True)
                with gr.Blocks():
                    gallery = gr.Gallery(
                        value=[[char['头像'], char['名称']] for char in characters.value],
                        show_label=False,
                        elem_id="character_gallery",
                        columns=[11],
                        object_fit="contain",
                        height="auto",
                        interactive=False,
                        allow_preview=False,
                        selected_index=None
                    )
                with gr.Row():
                    character_name = gr.Textbox(label=gettext("Currently selected character"), interactive=False, max_lines=1)
                    info_type = gr.Dropdown(choices=[], label=gettext("Select emotion"))
                with gr.Row():
                    add_voice_button = gr.Button(gettext("Add new voice"), variant="primary")
                
                selected_chars_container = gr.Column(elem_id="selected_chars_container", visible=False)
                
                with selected_chars_container:
                    gr.Markdown(gettext("### Selected characters"))
                    selected_chars_rows = []
                    for i in range(5):  # 假设最多选择5个角色
                        with gr.Row() as row:
                            name = gr.Textbox(label=gettext("Name"), interactive=False, max_lines=1)
                            emotion = gr.Textbox(label=gettext("Emotion"), interactive=False, max_lines=1)
                            delete_btn = gr.Button(gettext("Delete"), scale=0)
                        selected_chars_rows.append((name, emotion, delete_btn, row))

            with gr.Row():
                with gr.Column():
                    text = gr.Textbox(label=gettext("Text to synthesize"), value="", lines=10, max_lines=10)
                    inference_button = gr.Button(gettext("🎉 Synthesize Voice 🎉"), variant="primary", size='lg')
                with gr.Column():
                    prompt_audio = gr.Audio(label=gettext("Reference audio for synthesis"), interactive=False, type="numpy")
                    output = gr.Audio(label=gettext("Output audio"), interactive=False, type="numpy")
                    cost_time = gr.Textbox(label=gettext("Synthesis time"), interactive=False, show_label=False, max_lines=1)
            try:
                inference_button.click(
                    fn=generate,
                    inputs=[current_character, selected_characters, text, lang],
                    outputs=[output, cost_time],
                )
            except gr.Error as e:
                gr.Error(e)
            except Exception as e:
                pass

            # -------------- 绑定事件 --------------
            
            lang.change(
                fn=update_all_characters,
                inputs=[lang, all_characters_state],
                outputs=[all_characters_state, characters, gallery]
            )

            add_voice_button.click(
                fn=add_new_voice,
                inputs=[current_character, selected_characters, kind, lang, all_characters_state],
                outputs=[current_character, character_name, info_type, selected_characters, 
                        characters, gallery, selected_chars_container, all_characters_state]
            ).then(
                fn=update_selected_chars_display,
                inputs=[selected_characters],
                outputs=[item for row in selected_chars_rows for item in row]
            )


            gallery.select(
                fn=on_select,
                inputs=[characters, selected_characters, all_characters_state],
                outputs=[character_name, info_type, current_character, selected_characters]
            ).then(
                fn=update_prompt_audio,
                inputs=[current_character],
                outputs=[prompt_audio]
            )

            info_type.change(
                fn=update_character_info,
                inputs=[character_name, info_type, current_character, all_characters_state],
                outputs=[current_character, all_characters_state]
            ).then(
                fn=update_prompt_audio,
                inputs=[current_character],
                outputs=[prompt_audio]
            )

            for i, (_, _, delete_btn, _) in enumerate(selected_chars_rows):
                delete_btn.click(
                    fn=remove_character,
                    inputs=[gr.Number(value=i, visible=False), selected_characters],
                    outputs=[selected_characters, selected_chars_container]
                ).then(
                    fn=update_selected_chars_display,
                    inputs=[selected_characters],
                    outputs=[item for row in selected_chars_rows for item in row]
                )
            
            kind.change(
                fn=update_gallery,
                inputs=[kind, query, all_characters_state],
                outputs=[characters, gallery, all_characters_state]
            )
            
            query.change(
                fn=update_gallery,
                inputs=[kind, query, all_characters_state],
                outputs=[characters, gallery, all_characters_state]
            )
        gr.Markdown(gettext(terms))


if __name__ == '__main__':
    demo.queue(default_concurrency_limit=None).launch(
        # server_name="0.0.0.0",
        # server_port=80,
        show_api=False
    )