import os
import shutil
from typing import Union
from fastapi import APIRouter
from fastapi.encoders import jsonable_encoder
from fastapi.responses import JSONResponse
from fastapi import HTTPException, FastAPI, UploadFile, File, Form

from restapi.mods.FileUploader import upload_file, concat_file_chunks
from voice_changer.VoiceChangerManager import VoiceChangerManager

from const import MODEL_DIR, UPLOAD_DIR, ModelType
os.makedirs(UPLOAD_DIR, exist_ok=True)
os.makedirs(MODEL_DIR, exist_ok=True)


class MMVC_Rest_Fileuploader:
    def __init__(self, voiceChangerManager: VoiceChangerManager):
        self.voiceChangerManager = voiceChangerManager
        self.router = APIRouter()
        self.router.add_api_route("/info", self.get_info, methods=["GET"])
        self.router.add_api_route("/upload_file", self.post_upload_file, methods=["POST"])
        self.router.add_api_route("/concat_uploaded_file", self.post_concat_uploaded_file, methods=["POST"])
        self.router.add_api_route("/update_settings", self.post_update_settings, methods=["POST"])
        self.router.add_api_route("/load_model", self.post_load_model, methods=["POST"])
        self.router.add_api_route("/load_model_for_train", self.post_load_model_for_train, methods=["POST"])
        self.router.add_api_route("/extract_voices", self.post_extract_voices, methods=["POST"])
        self.router.add_api_route("/model_type", self.post_model_type, methods=["POST"])
        self.router.add_api_route("/model_type", self.get_model_type, methods=["GET"])
        self.router.add_api_route("/onnx", self.get_onnx, methods=["GET"])

    def post_upload_file(self, file: UploadFile = File(...), filename: str = Form(...)):
        res = upload_file(UPLOAD_DIR, file, filename)
        json_compatible_item_data = jsonable_encoder(res)
        return JSONResponse(content=json_compatible_item_data)

    def post_concat_uploaded_file(self, filename: str = Form(...), filenameChunkNum: int = Form(...)):
        slot = 0
        res = concat_file_chunks(slot, UPLOAD_DIR, filename, filenameChunkNum, UPLOAD_DIR)
        json_compatible_item_data = jsonable_encoder(res)
        return JSONResponse(content=json_compatible_item_data)

    def get_info(self):
        info = self.voiceChangerManager.get_info()
        json_compatible_item_data = jsonable_encoder(info)
        return JSONResponse(content=json_compatible_item_data)

    def post_update_settings(self, key: str = Form(...), val: Union[int, str, float] = Form(...)):
        print("post_update_settings", key, val)
        info = self.voiceChangerManager.update_settings(key, val)
        json_compatible_item_data = jsonable_encoder(info)
        return JSONResponse(content=json_compatible_item_data)

    def post_load_model(
        self,
        slot: int = Form(...),
        pyTorchModelFilename: str = Form(...),
        onnxModelFilename: str = Form(...),
        configFilename: str = Form(...),
        clusterTorchModelFilename: str = Form(...),
        featureFilename: str = Form(...),
        indexFilename: str = Form(...),
        isHalf: bool = Form(...),
    ):

        props = {
            "slot": slot,
            "isHalf": isHalf,
            "files": {
                "configFilename": configFilename,
                "pyTorchModelFilename": pyTorchModelFilename,
                "onnxModelFilename": onnxModelFilename,
                "clusterTorchModelFilename": clusterTorchModelFilename,
                "featureFilename": featureFilename,
                "indexFilename": indexFilename
            }
        }
        # Change Filepath
        for key, val in props["files"].items():
            if val != "-":
                uploadPath = os.path.join(UPLOAD_DIR, val)
                storeDir = os.path.join(UPLOAD_DIR, f"{slot}")
                os.makedirs(storeDir, exist_ok=True)
                storePath = os.path.join(storeDir, val)
                shutil.move(uploadPath, storePath)
                props["files"][key] = storePath
            else:
                props["files"][key] = None
        # print("---------------------------------------------------2>", props)

        info = self.voiceChangerManager.loadModel(props)
        json_compatible_item_data = jsonable_encoder(info)
        return JSONResponse(content=json_compatible_item_data)
        # return {"load": f"{configFilePath}, {pyTorchModelFilePath}, {onnxModelFilePath}"}

    def post_load_model_for_train(
        self,
        modelGFilename: str = Form(...),
        modelGFilenameChunkNum: int = Form(...),
        modelDFilename: str = Form(...),
        modelDFilenameChunkNum: int = Form(...),
    ):
        modelGFilePath = concat_file_chunks(
            UPLOAD_DIR, modelGFilename, modelGFilenameChunkNum, MODEL_DIR)
        modelDFilePath = concat_file_chunks(
            UPLOAD_DIR, modelDFilename, modelDFilenameChunkNum, MODEL_DIR)
        return {"File saved": f"{modelGFilePath}, {modelDFilePath}"}

    def post_extract_voices(
        self,
        zipFilename: str = Form(...),
        zipFileChunkNum: int = Form(...),
    ):
        zipFilePath = concat_file_chunks(
            UPLOAD_DIR, zipFilename, zipFileChunkNum, UPLOAD_DIR)
        shutil.unpack_archive(zipFilePath, "MMVC_Trainer/dataset/textful/")
        return {"Zip file unpacked": f"{zipFilePath}"}

    def post_model_type(
        self,
        modelType: ModelType = Form(...),
    ):
        info = self.voiceChangerManager.switchModelType(modelType)
        json_compatible_item_data = jsonable_encoder(info)
        return JSONResponse(content=json_compatible_item_data)

    def get_model_type(
        self,
    ):
        info = self.voiceChangerManager.getModelType()
        json_compatible_item_data = jsonable_encoder(info)
        return JSONResponse(content=json_compatible_item_data)

    def get_onnx(self):
        info = self.voiceChangerManager.export2onnx()
        json_compatible_item_data = jsonable_encoder(info)
        return JSONResponse(content=json_compatible_item_data)