{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/entur/main/json-schema/entur-purchase-window-list-response-schema.json",
  "title": "PurchaseWindowListResponse",
  "description": "A page of purchase windows, each with the versions relevant today.",
  "x-generated": "2026-10-09",
  "x-method": "derived",
  "x-generator": "derive-json-schema.py",
  "x-source": "openapi/entur-product-parameters-api-openapi.yml#/components/schemas/PurchaseWindowListResponse",
  "allOf": [
    {
      "$ref": "#/$defs/PageInfo"
    },
    {
      "required": [
        "purchaseWindows"
      ],
      "type": "object",
      "properties": {
        "purchaseWindows": {
          "type": "array",
          "description": "The purchase windows on this page, ordered by id.",
          "items": {
            "$ref": "#/$defs/VersionedElementSummary"
          }
        }
      }
    }
  ],
  "$defs": {
    "LocalizedString": {
      "type": "array",
      "items": {
        "required": [
          "lang",
          "value"
        ],
        "type": "object",
        "properties": {
          "lang": {
            "pattern": "^[a-z]{2}-[A-Z]{2}$",
            "type": "string",
            "description": "BCP-47 language tag (e.g., 'nb-NO', 'en-GB')."
          },
          "value": {
            "type": "string",
            "description": "The localized string value for the specified lang."
          }
        }
      }
    },
    "PageInfo": {
      "required": [
        "page",
        "size",
        "totalCount"
      ],
      "type": "object",
      "properties": {
        "totalCount": {
          "type": "integer",
          "description": "Total number of elements matching the query."
        },
        "page": {
          "type": "integer",
          "description": "Current zero-based page number."
        },
        "size": {
          "type": "integer",
          "description": "Requested page size."
        }
      },
      "description": "Paging information shared by all paginated list responses."
    },
    "VersionStatus": {
      "type": "string",
      "enum": [
        "DRAFT",
        "PROPOSED",
        "VERSIONED",
        "DEPRECATED"
      ]
    },
    "VersionSummary": {
      "required": [
        "names",
        "startDate",
        "status",
        "versionId"
      ],
      "type": "object",
      "properties": {
        "versionId": {
          "pattern": "^([A-Z]{3}):Version:([0-9A-Za-z_\\-]*)$",
          "type": "string",
          "description": "NeTEx id of the version."
        },
        "versionNumber": {
          "type": "integer",
          "description": "Sequence number of the version, when assigned.",
          "format": "int64"
        },
        "names": {
          "$ref": "#/$defs/LocalizedString"
        },
        "startDate": {
          "type": "string",
          "description": "First day the version is valid.",
          "format": "date"
        },
        "endDate": {
          "type": "string",
          "description": "First day the version is no longer valid (optional).",
          "format": "date"
        },
        "status": {
          "$ref": "#/$defs/VersionStatus"
        }
      },
      "description": "A light summary of one version of a versioned element, as shown in lists. Shared by the list\nendpoints of all element types.\n"
    },
    "VersionedElementSummary": {
      "required": [
        "id",
        "ownerOrganisationId",
        "versions"
      ],
      "type": "object",
      "properties": {
        "id": {
          "pattern": "^([A-Z]{3}):([A-Za-z]+):([0-9A-Za-z_\\-]*)$",
          "type": "string",
          "description": "NeTEx id of the element."
        },
        "ownerOrganisationId": {
          "type": "integer",
          "description": "Internal organisation id owning the element.",
          "format": "int64"
        },
        "versions": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/VersionSummary"
          }
        }
      },
      "description": "A versioned element with the versions relevant today, as shown in lists. Shared by the list\nendpoints of all element types. The versions are:\n\n- VERSIONED versions valid today or in the future (no end date, or an end date after today)\n- DRAFT and PROPOSED versions, regardless of date\n- when deprecated versions are requested, the most recent DEPRECATED version (latest start date)\n\nordered by status (DRAFT, PROPOSED, VERSIONED, DEPRECATED) and then by start date, newest first.\n"
    }
  }
}