{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://schemas.edu-industry.cn/job-signal/3.0.0/schema.json",
  "title": "JOB-SIGNAL V3.0 外部招聘岗位信号",
  "description": "商业招聘平台、公共就业平台与招聘活动平台统一岗位信号契约。",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "record_id",
    "source_platform",
    "source_record_id",
    "source_url",
    "collector_task_id",
    "collector_version",
    "raw_snapshot_id",
    "collected_at",
    "first_seen_at",
    "last_seen_at",
    "status",
    "job_title_raw",
    "job_description",
    "enterprise_name",
    "region_code",
    "employment_type",
    "source_payload_hash",
    "content_hash",
    "data_version"
  ],
  "properties": {
    "record_id": {
      "type": "string",
      "format": "uuid",
      "description": "平台生成的全局唯一记录标识。"
    },
    "source_platform": {
      "type": "string",
      "pattern": "^[A-Z][A-Z0-9_]{1,31}$",
      "description": "来源平台代码，例如 BOSS、ZHAOPIN、BRZP、NCSS、MOHRSS。"
    },
    "source_record_id": {
      "type": "string",
      "minLength": 1,
      "maxLength": 256,
      "description": "来源平台内的记录标识，与 source_platform 组成幂等键。"
    },
    "source_url": {
      "type": "string",
      "format": "uri",
      "maxLength": 2048,
      "description": "可回溯的来源页面或接口定位。"
    },
    "collector_task_id": {
      "type": "string",
      "pattern": "^JOB-[A-Za-z0-9-]{8,64}$",
      "description": "生产采集任务追踪编号。"
    },
    "collector_version": {
      "type": "string",
      "minLength": 1,
      "maxLength": 128,
      "description": "采集器名称、语义版本与代码提交摘要。"
    },
    "raw_snapshot_id": {
      "type": "string",
      "pattern": "^RAW-[A-Za-z0-9-]{8,96}$",
      "description": "原始响应或页面快照编号。"
    },
    "collected_at": {
      "type": "string",
      "format": "date-time",
      "description": "平台实际采集时间，必须包含时区。"
    },
    "first_seen_at": {
      "type": "string",
      "format": "date-time",
      "description": "平台首次发现该岗位的时间。"
    },
    "last_seen_at": {
      "type": "string",
      "format": "date-time",
      "description": "平台最近一次确认该岗位仍存在的时间。"
    },
    "published_at": {
      "type": ["string", "null"],
      "format": "date-time",
      "description": "来源平台显示的岗位发布时间。"
    },
    "status": {
      "type": "string",
      "enum": ["active", "inactive", "expired", "unknown"],
      "description": "岗位在当前数据版本中的状态。"
    },
    "job_title_raw": {
      "type": "string",
      "minLength": 1,
      "maxLength": 200,
      "description": "来源岗位名称原文。"
    },
    "job_title_normalized": {
      "type": ["string", "null"],
      "maxLength": 200,
      "description": "映射到统一岗位词典后的标准名称。"
    },
    "job_code": {
      "type": ["string", "null"],
      "pattern": "^[A-Z0-9.-]{2,32}$",
      "description": "统一岗位分类代码。"
    },
    "job_description": {
      "type": "string",
      "minLength": 1,
      "maxLength": 30000,
      "description": "去除展示标记与联系方式后的岗位职责和要求文本。"
    },
    "enterprise_name": {
      "type": "string",
      "minLength": 1,
      "maxLength": 300,
      "description": "来源企业名称原文。"
    },
    "enterprise_id": {
      "type": ["string", "null"],
      "maxLength": 128,
      "description": "平台企业归一标识。"
    },
    "enterprise_credit_code": {
      "type": ["string", "null"],
      "pattern": "^[0-9A-Z]{18}$",
      "description": "可公开确认时使用的统一社会信用代码。"
    },
    "enterprise_industry_code": {
      "type": ["string", "null"],
      "maxLength": 32,
      "description": "企业所属行业代码。"
    },
    "enterprise_scale": {
      "type": ["string", "null"],
      "enum": ["micro", "small", "medium", "large", "unknown", null],
      "description": "统一企业规模分组。"
    },
    "region_code": {
      "type": "string",
      "pattern": "^[0-9]{6}$",
      "description": "GB/T 2260 六位行政区划代码。"
    },
    "workplace": {
      "type": ["string", "null"],
      "maxLength": 500,
      "description": "来源工作地点文本。"
    },
    "employment_type": {
      "type": "string",
      "enum": ["full_time", "internship", "part_time", "contract", "campus", "other"],
      "description": "统一用工或招聘类型。"
    },
    "recruitment_count": {
      "type": ["integer", "null"],
      "minimum": 0,
      "maximum": 1000000,
      "description": "明确披露时记录计划招聘人数。"
    },
    "education_level": {
      "type": ["string", "null"],
      "enum": ["none", "secondary", "vocational", "associate", "bachelor", "master", "doctor", "unknown", null],
      "description": "最低学历要求。"
    },
    "experience_min_years": {
      "type": ["number", "null"],
      "minimum": 0,
      "maximum": 60,
      "description": "最低工作经验年限。"
    },
    "salary_min": {
      "type": ["number", "null"],
      "minimum": 0,
      "maximum": 10000000,
      "description": "统一折算后的税前月薪下限，单位为 salary_currency。"
    },
    "salary_max": {
      "type": ["number", "null"],
      "minimum": 0,
      "maximum": 10000000,
      "description": "统一折算后的税前月薪上限。"
    },
    "salary_currency": {
      "type": ["string", "null"],
      "pattern": "^[A-Z]{3}$",
      "description": "ISO 4217 币种代码，境内岗位通常为 CNY。"
    },
    "salary_period": {
      "type": ["string", "null"],
      "enum": ["month", "year", "day", "hour", "negotiable", "unknown", null],
      "description": "来源薪资周期，统一月薪字段与原始周期同时保留。"
    },
    "benefits": {
      "type": "array",
      "maxItems": 100,
      "items": {
        "type": "string",
        "maxLength": 100
      },
      "uniqueItems": true,
      "description": "福利标签。"
    },
    "skills": {
      "type": "array",
      "maxItems": 200,
      "items": {
        "type": "string",
        "maxLength": 100
      },
      "uniqueItems": true,
      "description": "使用技能词典提取并统一名称的技能标签。"
    },
    "keywords": {
      "type": "array",
      "maxItems": 200,
      "items": {
        "type": "string",
        "maxLength": 100
      },
      "uniqueItems": true,
      "description": "用于检索的业务关键词。"
    },
    "source_payload_hash": {
      "type": "string",
      "pattern": "^[a-f0-9]{64}$",
      "description": "原始响应载荷 SHA-256。"
    },
    "content_hash": {
      "type": "string",
      "pattern": "^[a-f0-9]{64}$",
      "description": "规范化业务内容 SHA-256，用于内容去重。"
    },
    "parsing_version": {
      "type": ["string", "null"],
      "maxLength": 128,
      "description": "解析规则版本。"
    },
    "normalized_at": {
      "type": ["string", "null"],
      "format": "date-time",
      "description": "岗位和技能归一完成时间。"
    },
    "data_version": {
      "type": "string",
      "pattern": "^V[0-9]{4}\\.[0-9]{2}\\.[0-9]{2}(?:\\.[0-9]+)?$",
      "description": "进入分析层的数据版本。"
    }
  },
  "allOf": [
    {
      "if": {
        "required": ["salary_min", "salary_max"]
      },
      "then": {
        "properties": {
          "salary_max": {
            "type": "number",
            "minimum": 0
          }
        }
      }
    }
  ]
}