# These codes are copied from modelscope revision c58451baead80d83281f063d12fb377fad415257 
# Copyright (c) 2022 Zhipu.AI

from typing import Any, Dict, Union

from modelscope.metainfo import Pipelines
from modelscope.models.nlp import CodeGeeXForCodeGeneration
from modelscope.pipelines.base import Pipeline
from modelscope.pipelines.builder import PIPELINES
from modelscope.preprocessors import Preprocessor
from modelscope.utils.constant import Tasks


@PIPELINES.register_module(
    group_key=Tasks.code_generation,
    module_name=Pipelines.codegeex_code_generation)
class CodeGeeXCodeGenerationPipeline(Pipeline):

    def __init__(self,
                 model: Union[CodeGeeXForCodeGeneration, str],
                 preprocessor: [Preprocessor] = None,
                 *args,
                 **kwargs):
        model = CodeGeeXForCodeGeneration(model) if isinstance(model,
                                                               str) else model
        self.model = model
        self.model.eval()
        self.model.half()
        self.model.cuda()

        super().__init__(model=model, **kwargs)

    def preprocess(self, inputs, **preprocess_params) -> Dict[str, Any]:
        return inputs

    # define the forward pass
    def forward(self, inputs: Union[Dict], **forward_params) -> Dict[str, Any]:
        # check input format
        for para in ['prompt', 'language']:
            if para not in inputs:
                raise Exception('Please check your input format.')
        if inputs['language'] not in [
                'C++', 'C', 'C#', 'Cuda', 'Objective-C', 'Objective-C++',
                'Python', 'Java', 'Scala', 'TeX', 'HTML', 'PHP', 'JavaScript',
                'TypeScript', 'Go', 'Shell', 'Rust', 'CSS', 'SQL', 'Kotlin',
                'Pascal', 'R', 'Fortran', 'Lean'
        ]:  # noqa
            raise Exception(
                'Make sure the language is in ["C++","C","C#","Cuda","Objective-C","Objective-C++","Python","Java","Scala","TeX","HTML","PHP","JavaScript","TypeScript","Go","Shell","Rust","CSS","SQL","Kotlin","Pascal","R","Fortran","Lean"]'  # noqa
            )  # noqa

        return self.model(inputs)

    # format the outputs from pipeline
    def postprocess(self, input, **kwargs) -> Dict[str, Any]:
        return input