"""结果接收平台的 JSON 契约；与取数网关及内部审计结构分开。"""
from datetime import datetime
from typing import Literal
from urllib.parse import urlsplit

from pydantic import BaseModel, ConfigDict, Field, field_validator

ResultCode = Literal["NORMAL", "WARNING", "ABNORMAL", "UNDETERMINED"]


class PlatformJudgment(BaseModel):
    model_config = ConfigDict(extra="forbid", strict=True)
    resultCode: ResultCode
    result: str = Field(min_length=1)
    reason: str = Field(min_length=1)
    evidenceLink: str = ""

    @field_validator("evidenceLink")
    @classmethod
    def evidence_url(cls, value):
        if value:
            parts = urlsplit(value)
            if parts.scheme not in {"http", "https"} or not parts.netloc or parts.username or parts.password:
                raise ValueError("evidenceLink 只能填写可访问的 HTTP(S) 证据页地址或空字符串")
        return value

    @field_validator("reason")
    @classmethod
    def report_text(cls, value):
        if "data:image/" in value or ";base64," in value:
            raise ValueError("报告正文不能包含图片编码")
        return value


class PlatformResultPayload(BaseModel):
    model_config = ConfigDict(extra="forbid", strict=True)
    agentCode: str = Field(min_length=1, max_length=64)
    agentName: str = Field(min_length=1)
    taskId: str = Field(pattern=r"^[0-9a-f]{32}$")
    checkedAt: str
    mineCode: str = Field(min_length=1)
    mineName: str = Field(min_length=1)
    objectDetail: str = Field(min_length=1)
    dataDetail: str
    judgment: PlatformJudgment

    @field_validator("checkedAt")
    @classmethod
    def completion_time(cls, value):
        parsed = datetime.strptime(value, "%Y-%m-%d %H:%M:%S")
        if parsed.strftime("%Y-%m-%d %H:%M:%S") != value:
            raise ValueError("checkedAt 必须使用 yyyy-MM-dd HH:mm:ss（Asia/Shanghai）")
        return value

    @field_validator("agentCode", "agentName", "mineCode", "mineName", "objectDetail")
    @classmethod
    def nonblank(cls, value):
        if not value.strip():
            raise ValueError("平台身份及研判对象不能为空白")
        return value