{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://panchangam.astrochaganti.com/docs/schemas/computations.schema.json",
  "title": "Telugu Calendar Utilities computation inventory",
  "type": "object",
  "required": [
    "schema_version",
    "registry_id",
    "vocabularies",
    "coverage",
    "computations"
  ],
  "properties": {
    "schema_version": { "const": 1 },
    "registry_id": { "const": "telugu-calendar-utilities.computations" },
    "vocabularies": {
      "type": "object",
      "additionalProperties": {
        "type": "array",
        "minItems": 1,
        "uniqueItems": true,
        "items": { "type": "string", "minLength": 1 }
      }
    },
    "coverage": {
      "type": "object",
      "required": ["roots", "exclusions"],
      "properties": {
        "roots": {
          "type": "array",
          "minItems": 1,
          "items": {
            "type": "object",
            "required": ["path", "extensions"],
            "properties": {
              "path": { "type": "string", "minLength": 1 },
              "extensions": {
                "type": "array",
                "minItems": 1,
                "items": { "type": "string", "pattern": "^\\." }
              }
            }
          }
        },
        "exclusions": {
          "type": "array",
          "items": {
            "type": "object",
            "required": ["path", "kind", "reason"],
            "properties": {
              "path": { "type": "string", "minLength": 1 },
              "kind": { "type": "string", "minLength": 1 },
              "reason": { "type": "string", "minLength": 1 }
            }
          }
        }
      }
    },
    "computations": {
      "type": "array",
      "minItems": 1,
      "items": { "$ref": "#/$defs/computation" }
    }
  },
  "$defs": {
    "implementation": {
      "type": "object",
      "required": ["path", "symbol", "role"],
      "properties": {
        "path": { "type": "string", "minLength": 1 },
        "symbol": { "type": "string", "minLength": 1 },
        "role": { "type": "string", "minLength": 1 }
      },
      "additionalProperties": false
    },
    "provenance": {
      "type": "object",
      "required": [
        "evidence_classes",
        "verification_states",
        "claim_ids",
        "note"
      ],
      "properties": {
        "evidence_classes": {
          "type": "array",
          "minItems": 1,
          "items": { "type": "string", "minLength": 1 }
        },
        "verification_states": {
          "type": "array",
          "minItems": 1,
          "items": { "type": "string", "minLength": 1 }
        },
        "claim_ids": {
          "type": "array",
          "items": { "type": "string", "minLength": 1 }
        },
        "note": { "type": "string", "minLength": 1 }
      },
      "additionalProperties": false
    },
    "formula": {
      "type": "object",
      "required": ["name", "expression", "variables"],
      "properties": {
        "name": { "type": "string", "minLength": 1 },
        "expression": { "type": "string", "minLength": 1 },
        "variables": {
          "type": "array",
          "minItems": 1,
          "items": { "type": "string", "minLength": 1 }
        }
      },
      "additionalProperties": false
    },
    "worked_example": {
      "type": "object",
      "required": ["label", "inputs", "calculation", "result"],
      "properties": {
        "label": { "type": "string", "minLength": 1 },
        "inputs": {
          "type": "array",
          "minItems": 1,
          "items": { "type": "string", "minLength": 1 }
        },
        "calculation": {
          "type": "array",
          "minItems": 1,
          "items": { "type": "string", "minLength": 1 }
        },
        "result": {
          "type": "array",
          "minItems": 1,
          "items": { "type": "string", "minLength": 1 }
        }
      },
      "additionalProperties": false
    },
    "method": {
      "type": "object",
      "required": ["kind", "summary", "steps", "worked_examples"],
      "properties": {
        "kind": { "type": "string", "minLength": 1 },
        "summary": { "type": "string", "minLength": 1 },
        "steps": {
          "type": "array",
          "minItems": 1,
          "items": { "type": "string", "minLength": 1 }
        },
        "formulae": {
          "type": "array",
          "minItems": 1,
          "items": { "$ref": "#/$defs/formula" }
        },
        "worked_examples": {
          "type": "array",
          "minItems": 1,
          "items": { "$ref": "#/$defs/worked_example" }
        },
        "notes": {
          "type": "array",
          "minItems": 1,
          "items": { "type": "string", "minLength": 1 }
        }
      },
      "additionalProperties": false
    },
    "computation": {
      "type": "object",
      "required": [
        "id",
        "title",
        "summary",
        "owning_layer",
        "claim_kind",
        "implementations",
        "inputs",
        "outputs",
        "time_basis",
        "method",
        "surfaces",
        "provenance",
        "tests",
        "limitations"
      ],
      "properties": {
        "id": {
          "type": "string",
          "pattern": "^[a-z][a-z0-9]*(?:[._-][a-z0-9]+)*$"
        },
        "title": { "type": "string", "minLength": 1 },
        "summary": { "type": "string", "minLength": 1 },
        "owning_layer": { "type": "string", "minLength": 1 },
        "claim_kind": { "type": "string", "minLength": 1 },
        "implementations": {
          "type": "array",
          "minItems": 1,
          "items": { "$ref": "#/$defs/implementation" }
        },
        "inputs": {
          "type": "array",
          "minItems": 1,
          "items": { "type": "string", "minLength": 1 }
        },
        "outputs": {
          "type": "array",
          "minItems": 1,
          "items": { "type": "string", "minLength": 1 }
        },
        "time_basis": { "type": "string", "minLength": 1 },
        "method": { "$ref": "#/$defs/method" },
        "surfaces": {
          "type": "array",
          "minItems": 1,
          "items": { "type": "string", "minLength": 1 }
        },
        "provenance": { "$ref": "#/$defs/provenance" },
        "tests": {
          "type": "array",
          "items": { "type": "string", "minLength": 1 }
        },
        "test_gap": { "type": "string", "minLength": 1 },
        "limitations": {
          "type": "array",
          "minItems": 1,
          "items": { "type": "string", "minLength": 1 }
        }
      },
      "additionalProperties": false
    }
  }
}