{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://github.com/luisreygarciafigueroa-creator/IOM/data/iom_spec.schema.json",
  "title": "IOM Specification Schema",
  "type": "object",
  "required": [
    "schema_version",
    "spec_version",
    "title",
    "source_date",
    "triad_index_range",
    "positions",
    "perspectives",
    "five_perspectives",
    "phases",
    "triads",
    "vectors",
    "creation_rules",
    "expanded_categories"
  ],
  "additionalProperties": false,
  "properties": {
    "schema_version": { "type": "string", "pattern": "^[0-9]+\\.[0-9]+\\.[0-9]+$" },
    "spec_version": { "type": "string", "pattern": "^[0-9]+\\.[0-9]+\\.[0-9]+$" },
    "title": { "type": "string", "minLength": 1 },
    "source_date": { "type": "string", "pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}$" },
    "source_note": { "type": "string" },
    "perspective_labels": {
      "type": "object",
      "additionalProperties": { "type": "string" }
    },
    "five_perspectives": {
      "type": "array",
      "minItems": 5,
      "maxItems": 5,
      "items": {
        "type": "object",
        "required": ["id", "label"],
        "properties": {
          "id": { "type": "string", "enum": ["Ind", "D", "Tot", "Evol", "Invol"] },
          "label": { "type": "string", "minLength": 1 },
          "index": { "type": "integer" },
          "kind": { "type": "string" },
          "description": { "type": "string" }
        },
        "additionalProperties": false
      }
    },
    "positions": {
      "type": "object",
      "required": ["indices", "adv_labels", "ret_labels", "perspectives", "note"],
      "properties": {
        "indices": { "type": "array", "const": [0, 1, 2] },
        "adv_labels": { "type": "array", "items": { "type": "string" }, "minItems": 3, "maxItems": 3 },
        "ret_labels": { "type": "array", "items": { "type": "string" }, "minItems": 3, "maxItems": 3 },
        "perspectives": { "type": "array", "items": { "type": "string" }, "minItems": 3, "maxItems": 3 },
        "note": { "type": "string" }
      },
      "additionalProperties": false
    },
    "perspectives": {
      "type": "array",
      "items": { "type": "string" },
      "minItems": 3,
      "maxItems": 3
    },
    "phases": {
      "type": "object",
      "required": ["adv", "ret"],
      "properties": {
        "adv": {
          "type": "object",
          "required": ["label", "direction"],
          "properties": {
            "label": { "type": "string" },
            "direction": { "type": "string", "enum": ["evol", "invol"] },
            "arrow": { "type": "string" }
          },
          "additionalProperties": false
        },
        "ret": {
          "type": "object",
          "required": ["label", "direction"],
          "properties": {
            "label": { "type": "string" },
            "direction": { "type": "string", "enum": ["evol", "invol"] },
            "arrow": { "type": "string" }
          },
          "additionalProperties": false
        }
      },
      "additionalProperties": false
    },
    "triads": {
      "type": "object",
      "required": ["index_base", "adv", "ret", "note"],
      "properties": {
        "adv": {
          "type": "array",
          "items": { "type": "array", "items": { "type": "string" }, "minItems": 3, "maxItems": 3 },
          "minItems": 13,
          "maxItems": 13
        },
        "ret": {
          "type": "array",
          "items": { "type": "array", "items": { "type": "string" }, "minItems": 3, "maxItems": 3 },
          "minItems": 13,
          "maxItems": 13
        },
        "index_base": { "type": "integer", "const": 1 },
        "note": { "type": "string" }
      },
      "additionalProperties": false
    },
    "vectors": {
      "type": "array",
      "minItems": 4,
      "maxItems": 4,
      "items": {
        "type": "object",
        "required": ["name", "phase", "labels", "axis_positions", "arrow"],
        "properties": {
          "name": { "type": "string" },
          "phase": { "type": "string", "enum": ["adv", "ret"] },
          "labels": { "type": "array", "items": { "type": "string" }, "minItems": 5, "maxItems": 5 },
          "axis_positions": {
            "type": "array",
            "items": { "type": "integer", "minimum": 0, "maximum": 4 },
            "minItems": 5,
            "maxItems": 5
          },
          "arrow": { "type": "string" }
        },
        "additionalProperties": false
      }
    },
    "creation_rules": {
      "type": "array",
      "minItems": 1,
      "items": {
        "type": "object",
        "required": ["source_phase", "source_positions", "target_phase", "target_positions"],
        "properties": {
          "source_phase": { "type": "string", "enum": ["adv", "ret"] },
          "source_positions": {
            "type": "array",
            "items": { "type": "integer", "minimum": 0, "maximum": 2 },
            "minItems": 1
          },
          "target_phase": { "type": "string", "enum": ["adv", "ret"] },
          "target_positions": {
            "type": "array",
            "items": { "type": "integer", "minimum": 0, "maximum": 2 },
            "minItems": 1
          }
        },
        "additionalProperties": false
      }
    },
    "expanded_categories": {
      "type": "object",
      "minProperties": 1,
      "additionalProperties": { "type": "array", "items": { "type": "string" } }
    },
    "migrations": {
      "type": "array",
      "items": {
        "type": "object",
        "required": ["from_version", "to_version", "description"],
        "properties": {
          "from_version": { "type": "string" },
          "to_version": { "type": "string" },
          "description": { "type": "string" },
          "date": { "type": "string" }
        },
        "additionalProperties": false
      }
    },
    "triad_index_range": {
      "type": "object",
      "required": ["min", "max"],
      "properties": {
        "min": { "const": 1 },
        "max": { "const": 13 }
      },
      "additionalProperties": false
    },
    "purpose": {
      "type": "object",
      "required": ["id", "label", "definition", "criterion"],
      "additionalProperties": false,
      "properties": {
        "id": { "type": "string", "minLength": 1 },
        "label": { "type": "string", "minLength": 1 },
        "definition": { "type": "string", "minLength": 1 },
        "criterion": { "type": "string", "minLength": 1 },
        "chain": {
          "type": "array",
          "items": { "type": "string" },
          "minItems": 1
        },
        "perspective_roles": {
          "type": "object",
          "additionalProperties": { "type": "string" }
        },
        "note": { "type": "string" }
      }
    }
  }
}