{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://compatair.fr/schemas/compatibility-receipt-1.0.0.json",
  "title": "CompatAir compatibility receipt",
  "$defs": {
    "ScopedVerdict": {
      "type": "object",
      "required": [
        "schema_version",
        "scope",
        "verdict",
        "limiting_factor",
        "limitations"
      ],
      "properties": {
        "schema_version": {
          "const": "2.0.0"
        },
        "scope": {
          "enum": [
            "air_supply",
            "complete_air_system"
          ]
        },
        "verdict": {
          "enum": [
            "information",
            "compatible",
            "compatible_with_limits",
            "incompatible",
            "insufficient_data"
          ]
        },
        "engine_verdict": {
          "enum": [
            "continuous",
            "intermittent",
            "incompatible",
            "insufficient_data"
          ]
        },
        "limiting_factor": {
          "type": [
            "string",
            "null"
          ]
        },
        "limitations": {
          "type": "array",
          "items": {
            "type": "string",
            "maxLength": 4000
          }
        },
        "metrics": {
          "type": "object",
          "properties": {
            "required_fad_lpm": {
              "type": [
                "number",
                "null"
              ]
            },
            "available_fad_lpm": {
              "type": [
                "number",
                "null"
              ]
            },
            "effective_average_capacity_lpm": {
              "type": [
                "number",
                "null"
              ]
            },
            "required_pressure_bar": {
              "type": [
                "number",
                "null"
              ]
            },
            "available_pressure_bar": {
              "type": [
                "number",
                "null"
              ]
            },
            "demand_flow_lpm": {
              "type": [
                "number",
                "null"
              ]
            },
            "recommended_fad_lpm": {
              "type": [
                "number",
                "null"
              ]
            },
            "margin_percent": {
              "type": [
                "number",
                "null"
              ]
            },
            "mode": {
              "type": [
                "string",
                "null"
              ]
            }
          },
          "additionalProperties": false
        }
      },
      "additionalProperties": false
    }
  },
  "type": "object",
  "required": [
    "schema_version",
    "receipt_id",
    "configuration_id",
    "overall_system_verdict",
    "air_supply_verdict",
    "method_version",
    "catalog_version",
    "observed_at",
    "canonical_url",
    "source_urls",
    "integrity",
    "verification_url"
  ],
  "properties": {
    "schema_version": {
      "const": "1.0.0"
    },
    "receipt_id": {
      "type": "string",
      "pattern": "^ca:receipt:[a-f0-9]{64}$"
    },
    "configuration_id": {
      "type": "string",
      "pattern": "^ca:configuration:[a-f0-9]{24}$"
    },
    "overall_system_verdict": {
      "$ref": "#/$defs/ScopedVerdict"
    },
    "air_supply_verdict": {
      "$ref": "#/$defs/ScopedVerdict"
    },
    "method_version": {
      "const": "2026.07"
    },
    "catalog_version": {
      "type": "string",
      "minLength": 1
    },
    "observed_at": {
      "type": "string",
      "format": "date"
    },
    "canonical_url": {
      "type": "string",
      "format": "uri",
      "pattern": "^https://compatair\\.fr/"
    },
    "source_urls": {
      "type": "array",
      "items": {
        "type": "string",
        "format": "uri",
        "pattern": "^https://"
      },
      "uniqueItems": true
    },
    "integrity": {
      "type": "object",
      "required": [
        "algorithm",
        "digest",
        "canonicalization"
      ],
      "properties": {
        "algorithm": {
          "const": "sha-256"
        },
        "digest": {
          "type": "string",
          "pattern": "^[a-f0-9]{64}$"
        },
        "canonicalization": {
          "const": "json-sort-keys-v1"
        }
      },
      "additionalProperties": false
    },
    "verification_url": {
      "type": "string",
      "format": "uri",
      "pattern": "^https://compatair\\.fr/recu-compatibilite/#"
    }
  },
  "additionalProperties": false
}