main.py

#https://thepythoncode.com/article/translate-text-in-python?utm_content=cmp-true
import asyncio
import uvicorn
from fastapi import FastAPI,UploadFile,Form,WebSocket,File
from fastapi.responses import FileResponse
from fastapi.middleware.cors import CORSMiddleware
from pydantic import BaseModel
from typing import Any, Dict, AnyStr, List, Union
import starlette
from CaesarMobileTranslate.caesarmobiletranslate import CaesarMobileTranslate
from CaesarFolderInterface.caesarfolderinterface import CaesarFolderInterface
from CaesarMobileTranscribe.caesartranscribe import CaesarMobileTranscribe
from CaesarMobileTTS.caesarmobiletts import CaesarMobileTTS

from pydub import AudioSegment
import os
app = FastAPI()
caesarfolders = CaesarFolderInterface()
caesarmobtrb = CaesarMobileTranscribe()


caesarmobtrb.create_all_dirs()

app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)
class CaesarMobileTranslateReq(BaseModel):
    text:str
    dest:str

JSONObject = Dict[AnyStr, Any]
JSONArray = List[Any]
JSONStructure = Union[JSONArray, JSONObject]
@app.get("/") # POST # allow all origins all methods.
async def home():
    return "Hello world to Caesar Mobile Translate."  
@app.post("/caesarmobiletranslate") # POST # allow all origins all methods.
async def caesarmobiletranslate(data : JSONStructure = None):  
    try:
        data = dict(data)#request.get_json()
        print(data)
        translation,dest,original,src = caesarmobtrb.caesartrans.translate(data["text"],data["dest"])

        return {"translation":translation,"dest":dest,"original":original,"src":src}
    except Exception as ex:
        return {"error":f"{type(ex)}-{ex}"}
@app.post("/caesarmobiletranslatestoreaudio")
async def caesarmobiletranslatestoreaudio(language:  str = Form(...),file: UploadFile = File(...)):
    # Increase Upload filesize: https://stackoverflow.com/questions/73442335/how-to-upload-a-large-file-%E2%89%A53gb-to-fastapi-backend
    filename = file.filename
    fileformat = filename.split(".")[1]
    suffix = f"_{language}"
    argfilename = filename.replace(".mp3","").replace(".wav","") + suffix
    contents = await file.read()

    caesarfolders.clean_all()
    if f"{argfilename}.wav" not in os.listdir(caesarmobtrb.audio_input_folder):
        store_res = caesarmobtrb.store_audio(argfilename,contents,fileformat)
        if store_res:
            return {"message":"audio stored in active directory."}
        else:
            return {"error":"Error storing."}
    else:
        return {"message":"translation already exists in db."}
def remove_unicode(original_text,final_translation):
    original_text = original_text.replace("\n","<new_line>",100000)
    original_text = original_text.encode('ascii',"ignore").decode()
    original_text = original_text.replace("<new_line>","\n",100000)
    
    final_translation = final_translation.replace("\n","<new_line>",100000)
    final_translation = final_translation.encode('ascii',"ignore").decode()
    final_translation = final_translation.replace("<new_line>","\n",100000)
@app.websocket("/caesarmobiletranslateaudiows")
async def caesarmobiletranslateaudio(websocket: WebSocket):
    try:
        await websocket.accept()
        while True:
            data = await websocket.receive_json()
            filename = data["filename"]
            language_src = data["src"]
            language_dest = data["dest"]
            fileformat = "wav"
            
            
            suffix = f"_{language_src}"
            argfilename = filename + suffix
            print(argfilename)

            ttsfilename = f"{caesarmobtrb.audio_output_folder}/{argfilename}.mp3"
            if f"{argfilename}.mp3" not in os.listdir(caesarmobtrb.audio_output_folder):
                contents = caesarmobtrb.load_audio(argfilename,fileformat,caesarmobtrb.audio_input_folder)
                if contents:
                    new_sound = AudioSegment.empty()
                    original_text = ""
                    final_translation = ""
                    send_interval = 3 
                    sliced_sections = caesarmobtrb .slice_sections(argfilename)
                    for i,new_sound,src,text,translation in caesarmobtrb.run_api(argfilename,language_src,language_dest,sliced_sections,new_sound):
                        original_text += f"{text}\n"
                        final_translation += f"{translation}\n"
                        new_sound.export(ttsfilename, format="mp3")
                        current_contents = caesarmobtrb.load_audio(argfilename,"mp3",caesarmobtrb.audio_output_folder)

                        await websocket.send_json({"progress":i,"total":len(sliced_sections),"send_audio_interval":send_interval})
                        if i % send_interval == 0:
                            await websocket.send_bytes(current_contents)
                    
                    new_sound.export(ttsfilename, format="mp3")
                    final_contents = caesarmobtrb.load_audio(argfilename,"mp3",caesarmobtrb.audio_output_folder)
                    await websocket.send_bytes(final_contents)
                    # .encode('ascii')

                    await websocket.send_json({"original_text":original_text})
                    await websocket.send_json({"final_translation":final_translation})
                    print({"message":"All translation audio was sent."})

                    await websocket.send_json({"message":"All translation audio was sent."})



                else:
                    await websocket.send_json({"error":"error loading file in active directory send request to caesarmobiletranslatestoreaudio."})
            else:
                try:
                    result = caesarmobtrb.load_audio(argfilename,"mp3",caesarmobtrb.audio_output_folder)
                    await websocket.send_bytes(result)
                except Exception as ex:
                    await websocket.send_json({"error":"error getting file from active directory."})
            
    except starlette.websockets.WebSocketDisconnect as wed:
        if str(wed) == "1000":
            caesarfolders.clean_all()
            print("connected close handled.")
        else:
            print(type(wed),wed)
    


async def main():
    config = uvicorn.Config("main:app", port=7860, log_level="info",host="0.0.0.0",reload=True) # Local
    server = uvicorn.Server(config)
    await server.serve()

if __name__ == "__main__":
    asyncio.run(main())