"""DUS/品种保护 —— Pydantic 校验/序列化模型（描述符模板 / 测试记录 / 观测）。"""
from datetime import date, datetime

from pydantic import BaseModel, ConfigDict, Field

from app.core.base_schema import CommonSchema


# ---------- 描述符模板 ----------
class DusDescriptorBaseSchema(BaseModel):
    model_config = ConfigDict(from_attributes=True)

    descriptor_no: str = Field(..., description="描述符编号(UPOV TG/53 特性号)")
    trait_id: int | None = Field(default=None, description="关联性状字典 id")
    trait_code: str | None = Field(default=None, description="性状编码(快照)")
    descriptor_name: str = Field(..., description="特性中文名")
    expression_type: str = Field(default="QN", description="表达类型(QN/PQ/QL)")
    method: str | None = Field(default=None, description="测试方法")
    example_varieties: str | None = Field(default=None, description="标准/示例品种")
    test_stage: str | None = Field(default=None, description="测试生育期")
    required: str = Field(default="1", description="是否必测(1/0)")
    remark: str | None = Field(default=None, description="备注")


class DusDescriptorCreateSchema(DusDescriptorBaseSchema):
    pass


class DusDescriptorUpdateSchema(DusDescriptorBaseSchema):
    descriptor_no: str | None = Field(default=None, description="描述符编号")
    descriptor_name: str | None = Field(default=None, description="特性中文名")
    expression_type: str | None = Field(default=None, description="表达类型(QN/PQ/QL)")
    required: str | None = Field(default=None, description="是否必测(1/0)")


class DusDescriptorOutSchema(DusDescriptorBaseSchema):
    id: int
    uuid: str
    trait_name: str | None = None
    created_time: datetime | None = None
    updated_time: datetime | None = None
    created_by: CommonSchema | None = None
    updated_by: CommonSchema | None = None


class DusDescriptorQueryParam(BaseModel):
    descriptor_no: str | None = Field(default=None, description="描述符编号", json_schema_extra={"q": "like"})
    descriptor_name: str | None = Field(default=None, description="特性中文名", json_schema_extra={"q": "like"})
    trait_code: str | None = Field(default=None, description="关联性状编码", json_schema_extra={"q": "like"})
    expression_type: str | None = Field(default=None, description="表达类型")
    test_stage: str | None = Field(default=None, description="测试生育期")


# ---------- 测试记录 ----------
class DusTestBaseSchema(BaseModel):
    model_config = ConfigDict(from_attributes=True)

    test_name: str = Field(..., description="测试名称")
    germplasm_id: int | None = Field(default=None, description="申请/候选品种")
    trial_study_id: int | None = Field(default=None, description="测试点")
    tester: str | None = Field(default=None, description="测试人")
    test_date: date | None = Field(default=None, description="测试日期")
    status: str = Field(default="planning", description="状态(planning/testing/completed/report)")
    conclusion: str = Field(default="pending", description="结论(pending/distinct/not_distinct)")
    report_path: str | None = Field(default=None, description="报告附件路径")
    remark: str | None = Field(default=None, description="备注")


class DusTestCreateSchema(DusTestBaseSchema):
    pass


class DusTestUpdateSchema(DusTestBaseSchema):
    test_name: str | None = Field(default=None, description="测试名称")
    status: str | None = Field(default=None, description="状态")
    conclusion: str | None = Field(default=None, description="结论")


class DusTestOutSchema(DusTestBaseSchema):
    id: int
    uuid: str
    germplasm_name: str | None = None
    trial_study_name: str | None = None
    analysis_json: dict | None = None
    created_time: datetime | None = None
    updated_time: datetime | None = None
    created_by: CommonSchema | None = None
    updated_by: CommonSchema | None = None


class DusDistinctnessIn(BaseModel):
    """特异性统计判定入参（§8.18）。"""
    reference_test_ids: list[int] | None = Field(
        default=None, description="显式参照测试 id 列表；为空则自动取同测试点其他非软删测试"
    )
    alpha: float = Field(
        default=0.01, gt=0.0, lt=0.5,
        description="显著性水平（默认 1% 双侧，UPOV LSD 惯例）",
    )


class DusTestQueryParam(BaseModel):
    test_name: str | None = Field(default=None, description="测试名称", json_schema_extra={"q": "like"})
    tester: str | None = Field(default=None, description="测试人", json_schema_extra={"q": "like"})
    germplasm_id: int | None = Field(default=None, description="申请/候选品种")
    trial_study_id: int | None = Field(default=None, description="测试点")
    status: str | None = Field(default=None, description="状态")
    conclusion: str | None = Field(default=None, description="结论")


# ---------- 观测 ----------
class DusObservationBaseSchema(BaseModel):
    model_config = ConfigDict(from_attributes=True)

    dus_test_id: int = Field(..., description="DUS 测试")
    dus_descriptor_id: int = Field(..., description="描述符")
    value_numeric: float | None = Field(default=None, description="数值表达值")
    value_text: str | None = Field(default=None, description="文本表达值")
    expression_note: str | None = Field(default=None, description="表达说明")
    remark: str | None = Field(default=None, description="备注")


class DusObservationCreateSchema(DusObservationBaseSchema):
    pass


class DusObservationUpdateSchema(DusObservationBaseSchema):
    dus_test_id: int | None = Field(default=None, description="DUS 测试")
    dus_descriptor_id: int | None = Field(default=None, description="描述符")


class DusObservationOutSchema(DusObservationBaseSchema):
    id: int
    uuid: str
    descriptor_no: str | None = None
    descriptor_name: str | None = None
    created_time: datetime | None = None
    updated_time: datetime | None = None
    created_by: CommonSchema | None = None
    updated_by: CommonSchema | None = None


class DusObservationQueryParam(BaseModel):
    dus_test_id: int | None = Field(default=None, description="DUS 测试")
    dus_descriptor_id: int | None = Field(default=None, description="描述符")