{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "stock-valuation-snapshot-v1.0.0",
  "title": "股票估值标准快照",
  "type": "object",
  "required": ["snapshot_id", "meta", "market", "financials", "balance_sheet", "valuation", "institutions", "sources"],
  "properties": {
    "snapshot_id": {"type": "string", "minLength": 1},
    "meta": {
      "type": "object",
      "required": ["company", "code", "market", "as_of_date", "currency", "report_period_end", "latest_operating_info_date"],
      "properties": {
        "company": {"type": "string"},
        "code": {"type": "string"},
        "market": {"type": "string"},
        "as_of_date": {"type": "string", "format": "date"},
        "currency": {"type": "string"},
        "report_period_end": {"type": "string", "format": "date"},
        "latest_operating_info_date": {"type": "string", "format": "date"}
      },
      "additionalProperties": true
    },
    "market": {
      "type": "object",
      "required": ["price", "price_type", "price_timestamp", "diluted_shares", "shares_date"],
      "properties": {
        "price": {"type": "number", "exclusiveMinimum": 0},
        "price_type": {"type": "string"},
        "price_timestamp": {"type": "string"},
        "diluted_shares": {"type": "number", "exclusiveMinimum": 0},
        "shares_date": {"type": "string", "format": "date"},
        "platform_market_cap": {"type": ["number", "null"]}
      }
    },
    "financials": {
      "type": "object",
      "required": ["annual", "current_cumulative", "prior_year_same_period"],
      "properties": {
        "annual": {"$ref": "#/$defs/financialPeriod"},
        "current_cumulative": {"$ref": "#/$defs/financialPeriod"},
        "prior_year_same_period": {"$ref": "#/$defs/financialPeriod"}
      }
    },
    "balance_sheet": {
      "type": "object",
      "required": ["period_end", "equity", "cash_available", "non_operating_financial_assets", "interest_bearing_debt", "minority_interest"],
      "properties": {
        "period_end": {"type": "string", "format": "date"},
        "equity": {"type": "number"},
        "cash_available": {"type": "number", "minimum": 0},
        "non_operating_financial_assets": {"type": "number", "minimum": 0},
        "interest_bearing_debt": {"type": "number", "minimum": 0},
        "minority_interest": {"type": "number", "minimum": 0}
      }
    },
    "normalization": {
      "type": "object",
      "properties": {
        "adjustments": {
          "type": "array",
          "items": {
            "type": "object",
            "required": ["description", "amount"],
            "properties": {
              "description": {"type": "string"},
              "amount": {"type": "number", "description": "对可持续利润的带符号影响；增加为正，减少为负"},
              "basis": {"type": "string"}
            }
          }
        }
      }
    },
    "valuation": {
      "type": "object",
      "required": ["scenarios", "reverse_pe_multiples", "holding_period"],
      "properties": {
        "scenarios": {"type": "array", "minItems": 1, "items": {"$ref": "#/$defs/scenario"}},
        "reverse_pe_multiples": {"type": "array", "minItems": 1, "items": {"type": "number", "exclusiveMinimum": 0}},
        "exit_pe_multiples": {"type": "array", "items": {"type": "number", "exclusiveMinimum": 0}},
        "holding_period": {
          "type": "object",
          "required": ["years", "required_return", "cumulative_dividend_per_share"],
          "properties": {
            "years": {"type": "integer", "minimum": 1},
            "required_return": {"type": "number", "exclusiveMinimum": -1},
            "cumulative_dividend_per_share": {"type": "number", "minimum": 0}
          }
        }
      }
    },
    "institutions": {
      "type": "object",
      "required": ["coverage_status", "forecasts"],
      "properties": {
        "coverage_status": {"enum": ["available", "no_usable_forecasts"]},
        "forecasts": {"type": "array", "items": {"$ref": "#/$defs/institutionForecast"}}
      }
    },
    "sources": {"type": "array", "minItems": 1, "items": {"$ref": "#/$defs/source"}},
    "analysis": {"type": "object"}
  },
  "$defs": {
    "financialPeriod": {
      "type": "object",
      "required": ["period_end", "revenue", "attributable_profit", "deduct_profit"],
      "properties": {
        "period_end": {"type": "string", "format": "date"},
        "basis": {"type": "string"},
        "revenue": {"type": "number"},
        "attributable_profit": {"type": "number"},
        "deduct_profit": {"type": "number"},
        "cfo": {"type": ["number", "null"]},
        "capex": {"type": ["number", "null"], "minimum": 0}
      }
    },
    "scenario": {
      "type": "object",
      "required": ["name", "role", "method", "multiple_low", "multiple_high"],
      "properties": {
        "name": {"type": "string"},
        "role": {"enum": ["pessimistic", "base", "optimistic", "custom"]},
        "method": {"enum": ["pe", "pb"]},
        "profit_low": {"type": "number"},
        "profit_high": {"type": "number"},
        "multiple_low": {"type": "number"},
        "multiple_high": {"type": "number"},
        "assumption": {"type": "string"}
      }
    },
    "institutionForecast": {
      "type": "object",
      "required": ["institution", "report_date", "estimates"],
      "properties": {
        "institution": {"type": "string"},
        "report_date": {"type": "string", "format": "date"},
        "include": {"type": "boolean"},
        "core_assumption": {"type": "string"},
        "source_id": {"type": "string"},
        "estimates": {
          "type": "object",
          "additionalProperties": {
            "type": "object",
            "required": ["profit", "eps"],
            "properties": {"profit": {"type": "number"}, "eps": {"type": "number"}}
          }
        }
      }
    },
    "source": {
      "type": "object",
      "required": ["id", "source_type", "title", "publish_date", "supports"],
      "properties": {
        "id": {"type": "string"},
        "source_type": {"type": "string"},
        "title": {"type": "string"},
        "publish_date": {"type": "string", "format": "date"},
        "period_end": {"type": ["string", "null"]},
        "url": {"type": ["string", "null"]},
        "supports": {"type": "array", "minItems": 1, "items": {"type": "string"}},
        "revision_status": {"enum": ["current", "superseded", "unknown"]},
        "superseded_by": {"type": ["string", "null"]}
      }
    }
  }
}