import json

from review_agent.regulatory_review.services.llm_review import review_condition_fields, review_workflow_payload


def test_review_condition_fields_selects_more_complete_llm_product_name():
    def completion(messages, temperature=0.0):
        return json.dumps(
            {
                "fields": {
                    "产品名称": "呼吸道合胞病毒、肺炎支原体核酸检测试剂盒 （荧光PCR法）",
                    "型号规格": "24人份/盒",
                }
            },
            ensure_ascii=False,
        )

    result = review_condition_fields(
        text="产品名称：呼吸道合胞病毒、肺炎支原体核酸检测试剂盒\n（荧光PCR法）\n型号规格：24人份/盒",
        rule_fields={"产品名称": "呼吸道合胞病毒、肺炎支原体核酸检测试剂盒", "型号规格": "24人份/盒"},
        file_context="申请表.txt",
        completion_func=completion,
    )

    assert result["selected_fields"]["产品名称"] == "呼吸道合胞病毒、肺炎支原体核酸检测试剂盒 （荧光PCR法）"
    assert result["selected_sources"]["产品名称"] == "llm"
    assert result["selected_sources"]["型号规格"] == "rule"


def test_review_condition_fields_falls_back_when_llm_returns_chapter_title():
    def completion(messages, temperature=0.0):
        return json.dumps({"fields": {"产品名称": "第1章 监管信息"}}, ensure_ascii=False)

    result = review_condition_fields(
        text="产品名称：甲胎蛋白检测试剂盒",
        rule_fields={"产品名称": "甲胎蛋白检测试剂盒"},
        file_context="申请表.txt",
        completion_func=completion,
    )

    assert result["selected_fields"]["产品名称"] == "甲胎蛋白检测试剂盒"
    assert result["selected_sources"]["产品名称"] == "rule"


def test_review_condition_fields_rejects_garbled_llm_product_name():
    def completion(messages, temperature=0.0):
        return json.dumps({"fields": {"产品名称": "呼吸道合胞病毒、 �肺炎支原体核酸检测试剂盒 (荧光PCR法)"}}, ensure_ascii=False)

    result = review_condition_fields(
        text="呼吸道合胞病毒、肺炎支原体核酸检测试剂盒（荧光PCR法）",
        rule_fields={"产品名称": "呼吸道合胞病毒、肺炎支原体核酸检测试剂盒（荧光PCR法）"},
        file_context="产品列表.txt",
        completion_func=completion,
    )

    assert result["selected_fields"]["产品名称"] == "呼吸道合胞病毒、肺炎支原体核酸检测试剂盒（荧光PCR法）"
    assert result["selected_sources"]["产品名称"] == "rule"


def test_review_workflow_payload_handles_timeout_without_raising():
    def completion(messages, temperature=0.0):
        raise TimeoutError("The read operation timed out")

    result = review_workflow_payload(
        stage="completeness_check",
        payload={"findings": []},
        completion_func=completion,
    )

    assert result["status"] == "failed"
    assert result["stage"] == "completeness_check"
    assert "timed out" in result["error_message"]


def test_review_workflow_payload_retries_timeout_before_success(settings):
    settings.REGULATORY_LLM_REVIEW_RETRY_DELAY_SECONDS = 0
    attempts = {"count": 0}

    def completion(messages, temperature=0.0):
        attempts["count"] += 1
        if attempts["count"] < 3:
            raise TimeoutError("The read operation timed out")
        return json.dumps({"reviewed": True})

    result = review_workflow_payload(
        stage="completeness_check",
        payload={"findings": []},
        completion_func=completion,
    )

    assert attempts["count"] == 3
    assert result["status"] == "success"
    assert result["result"]["reviewed"] is True


def test_review_workflow_payload_passes_configured_timeout(settings):
    settings.REGULATORY_LLM_REVIEW_RETRY_DELAY_SECONDS = 0
    settings.REGULATORY_LLM_REVIEW_TIMEOUT_SECONDS = 7
    observed = {}

    def completion(messages, temperature=0.0, timeout=None):
        observed["timeout"] = timeout
        return json.dumps({"reviewed": True})

    review_workflow_payload(
        stage="completeness_check",
        payload={"findings": []},
        completion_func=completion,
    )

    assert observed["timeout"] == 7