import os

# Copyright (c) 2020, ARM Limited.
#
#    Licensed under the Apache License, Version 2.0 (the "License");
#    you may not use this file except in compliance with the License.
#    You may obtain a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS,
#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#    See the License for the specific language governing permissions and
#    limitations under the License.

import json
import shlex
import subprocess
from tosa_test_runner import TosaTestRunner, run_sh_command

class TosaRefRunner(TosaTestRunner):
    def __init__(self, args, runnerArgs, testDir):
        super().__init__(args, runnerArgs, testDir)

    def runModel(self):
        # Build up the TOSA reference command line
        # Uses arguments from the argParser args, not the runnerArgs
        args = self.args

        ref_cmd = [ args.ref_model_path,
                    '-Csubgraph_file={}'.format(self.testDesc['tosa_file']),
                    '-Csubgraph_dir={}'.format(self.testDir),
                    '-Cinput_dir={}'.format(self.testDir),
                    '-Coutput_dir={}'.format(self.testDir),
                    '-Coutput_tensor_prefix=ref-',  # Naming agreement with TosaSerializer
                    ]

        # Build up input tensor_name/filename list
        inputTensors = []
        for i in range(len(self.testDesc['ifm_placeholder'])):
            inputTensors.append('{}:{}'.format(self.testDesc['ifm_placeholder'][i], self.testDesc['ifm_file'][i]))

        ref_cmd.append('-Cinput_tensor={}'.format(','.join(inputTensors)))

        if args.ref_debug:
            ref_cmd.extend(['-dALL', '-l{}'.format(args.ref_debug)])

        if args.ref_intermediates:
            ref_cmd.extend(['-Ddump_intermediates=1'])

        expectedFailure = self.testDesc['expected_failure']

        try:
            run_sh_command(self.args, ref_cmd)
            if expectedFailure:
                result = TosaTestRunner.Result.UNEXPECTED_PASS
            else:
                result = TosaTestRunner.Result.EXPECTED_PASS
        except Exception as e:
            if expectedFailure:
                result = TosaTestRunner.Result.EXPECTED_FAILURE
            else:
                result = TosaTestRunner.Result.EXPECTED_PASS

        return result