from fastapi import Query
from pydantic import BaseModel, ConfigDict, Field, field_validator

from app.common.enums import QueueEnum
from app.core.base_schema import BaseSchema
from app.core.validator import DateTimeStr


class ParamsCreateSchema(BaseModel):
    """配置创建模型"""

    config_name: str = Field(..., min_length=1, max_length=64, description="参数名称")
    config_key: str = Field(..., min_length=1, max_length=500, description="参数键名")
    config_value: str | None = Field(default=None, max_length=500, description="参数键值")
    config_type: bool = Field(default=False, description="是否系统内置")
    status: int = Field(default=0, ge=0, le=1, description="状态(0:正常 1:停用)")
    description: str | None = Field(default=None, max_length=500, description="描述")

    @field_validator("config_key")
    @classmethod
    def _validate_config_key(cls, v: str) -> str:
        v = v.strip().lower()
        import re
        if not re.match(r"^[a-z][a-z0-9_.-]*$", v):
            raise ValueError("参数键名必须以小写字母开头，仅允许小写字母、数字、_ . -")
        return v

    @field_validator("status")
    @classmethod
    def _validate_status(cls, v: int) -> int:
        if v not in {0, 1}:
            raise ValueError("状态仅支持 0(正常) 或 1(停用)")
        return v


class ParamsUpdateSchema(ParamsCreateSchema):
    """配置更新模型"""


class ParamsOutSchema(ParamsCreateSchema, BaseSchema):
    """配置响应模型"""

    model_config = ConfigDict(from_attributes=True)


class ParamsQueryParam:
    """配置管理查询参数"""

    def __init__(
        self,
        config_name: str | None = Query(None, description="配置名称"),
        config_key: str | None = Query(None, description="配置键名"),
        config_type: bool | None = Query(None, description="系统内置((True:是 False:否))"),
        description: str | None = Query(None, description="描述"),
        status: str | None = Query(None, description="是否启用"),
        created_time: list[DateTimeStr] | None = Query(
            None,
            description="创建时间范围",
            examples=["2025-01-01 00:00:00", "2025-12-31 23:59:59"],
        ),
        updated_time: list[DateTimeStr] | None = Query(
            None,
            description="更新时间范围",
            examples=["2025-01-01 00:00:00", "2025-12-31 23:59:59"],
        ),
    ) -> None:
        # 模糊查询字段
        self.config_name = (QueueEnum.like.value, config_name)
        self.config_key = (QueueEnum.like.value, config_key)
        # 精确查询字段
        self.config_type = (QueueEnum.eq.value, config_type)
        if description:
            self.description = (QueueEnum.like.value, description)

        # 精确查询字段
        if status:
            self.status = (QueueEnum.eq.value, status)

        # 时间范围查询
        if created_time and len(created_time) == 2:
            self.created_time = (QueueEnum.between.value, (created_time[0], created_time[1]))
        if updated_time and len(updated_time) == 2:
            self.updated_time = (QueueEnum.between.value, (updated_time[0], updated_time[1]))