#
#  Copyright 2026 The InfiniFlow Authors. All Rights Reserved.
#
#  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.
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from api.utils import api_utils


def test_get_data_openai_stream_chunk_matches_openai_shape(monkeypatch):
    monkeypatch.setattr(api_utils.time, "time", lambda: 1234567890.9)

    data = api_utils.get_data_openai(id="chatcmpl-test", model="test-model", content="chunk", stream=True)

    assert data == {
        "id": "chatcmpl-test",
        "object": "chat.completion.chunk",
        "created": 1234567890,
        "model": "test-model",
        "system_fingerprint": "",
        "usage": None,
        "choices": [
            {
                "delta": {
                    "content": "chunk",
                    "role": "assistant",
                    "function_call": None,
                    "tool_calls": None,
                },
                "finish_reason": None,
                "index": 0,
                "logprobs": None,
            }
        ],
    }


def test_get_data_openai_stream_preserves_explicit_created_value():
    data = api_utils.get_data_openai(created=0, content="chunk", stream=True)

    assert data["created"] == 0


def test_get_data_openai_terminal_stream_chunk_includes_usage():
    data = api_utils.get_data_openai(prompt_tokens=3, completion_tokens=5, content=None, finish_reason="stop", stream=True)

    assert data["usage"] == {
        "prompt_tokens": 3,
        "completion_tokens": 5,
        "total_tokens": 8,
        "completion_tokens_details": {
            "reasoning_tokens": 0,
            "accepted_prediction_tokens": 0,
            "rejected_prediction_tokens": 0,
        },
    }
    assert data["choices"][0]["finish_reason"] == "stop"


def test_get_data_openai_stream_delta_allows_reference_payload():
    data = api_utils.get_data_openai(content="chunk", stream=True)

    data["choices"][0]["delta"]["reference"] = {"chunks": []}

    assert data["choices"][0]["delta"]["reference"] == {"chunks": []}