{
	"$schema": "https://json-schema.org/draft/2020-12/schema",
	"$id": "https://prodid.org/schemas/v1/org.prodid.item.json",
	"title": "org.prodid.item",
	"description": "One trade item as published by a source. The index derives variants and families from `group` and `variant`.",
	"type": "object",
	"required": ["$type", "key", "brand", "name", "identifiers"],
	"additionalProperties": false,
	"properties": {
		"$type": { "const": "org.prodid.item" },
		"key": {
			"description": "Stable record key, unique within the feed. Reusing a key updates the record.",
			"type": "string",
			"pattern": "^[A-Za-z0-9._:~-]{1,512}$"
		},
		"brand": { "type": "string", "minLength": 1, "maxLength": 256 },
		"name": { "type": "string", "minLength": 1, "maxLength": 1024 },
		"lang": {
			"description": "BCP 47 tag for the human-readable text in this record.",
			"type": "string",
			"pattern": "^[A-Za-z]{2,8}(-[A-Za-z0-9]{1,8})*$"
		},
		"group": {
			"description": "Publisher's own grouping key. Items sharing a group are variants of one family.",
			"type": "string",
			"minLength": 1,
			"maxLength": 512
		},
		"variant": {
			"description": "Axes that distinguish this item within its group, such as color or size.",
			"type": "object",
			"propertyNames": { "pattern": "^[a-z][A-Za-z0-9]*$" },
			"additionalProperties": { "type": "string", "minLength": 1, "maxLength": 256 }
		},
		"identifiers": {
			"type": "array",
			"minItems": 1,
			"uniqueItems": true,
			"items": { "$ref": "#/$defs/identifier" }
		},
		"category": {
			"description": "GS1 GPC brick code.",
			"type": "string",
			"pattern": "^gpc:[0-9]{8}$"
		},
		"markets": {
			"description": "ISO 3166-1 alpha-2 codes of the markets this item is sold in.",
			"type": "array",
			"uniqueItems": true,
			"items": { "type": "string", "pattern": "^[A-Z]{2}$" }
		},
		"properties": {
			"type": "object",
			"propertyNames": { "pattern": "^[a-z][A-Za-z0-9]*$" },
			"additionalProperties": { "$ref": "#/$defs/propertyValue" }
		},
		"media": {
			"type": "array",
			"items": { "$ref": "#/$defs/media" }
		}
	},
	"$defs": {
		"identifier": {
			"type": "object",
			"required": ["scheme", "value"],
			"additionalProperties": false,
			"properties": {
				"scheme": { "type": "string", "pattern": "^[a-z][a-z0-9-]{0,31}$" },
				"value": {
					"description": "No leading or trailing whitespace, and at least one character that is not whitespace: a value that normalizes to nothing identifies nothing.",
					"type": "string",
					"minLength": 1,
					"maxLength": 256,
					"pattern": "^\\S([\\s\\S]*\\S)?$"
				}
			},
			"if": { "properties": { "scheme": { "const": "gtin" } } },
			"then": { "properties": { "value": { "type": "string", "pattern": "^([0-9]{8}|[0-9]{12,14})$" } } }
		},
		"propertyValue": {
			"oneOf": [
				{ "type": "string", "maxLength": 4096 },
				{ "type": "number" },
				{ "type": "boolean" },
				{ "type": "array", "items": { "type": "string", "maxLength": 4096 } },
				{
					"type": "object",
					"required": ["value", "unit"],
					"additionalProperties": false,
					"properties": {
						"value": { "type": "number" },
						"unit": { "type": "string", "minLength": 1, "maxLength": 32 }
					}
				}
			]
		},
		"media": {
			"type": "object",
			"required": ["url", "license"],
			"additionalProperties": false,
			"properties": {
				"url": { "type": "string", "format": "uri", "pattern": "^https://" },
				"license": {
					"description": "SPDX license identifier. Media without a license is not ingested.",
					"type": "string",
					"minLength": 1,
					"maxLength": 64
				},
				"kind": { "enum": ["image", "document"] }
			}
		}
	}
}