{
	"$id": "https://mapliberator.com/spec/1.0-draft/schemas/photo-sidecar.schema.json",
	"$schema": "https://json-schema.org/draft/2020-12/schema",
	"type": "object",
	"properties": {
		"id": {
			"type": "string",
			"pattern": "^photo\\/[0-9]{6,}$",
			"description": "Archive-local ID: \"photo/<sequence>\""
		},
		"file": {
			"type": "string",
			"minLength": 1,
			"maxLength": 255,
			"pattern": "^[A-Za-z0-9][A-Za-z0-9._-]*$",
			"description": "Name of a file in the same directory as this sidecar"
		},
		"contentType": {
			"type": "string"
		},
		"rendition": {
			"type": "string",
			"enum": [
				"original",
				"largest-available"
			]
		},
		"attachedTo": {
			"anyOf": [
				{
					"type": "string",
					"pattern": "^(track|route|waypoint|area|photo|collection)\\/[0-9]{6,}$",
					"description": "Archive-local ID: \"<type>/<sequence>\""
				},
				{
					"type": "null"
				}
			]
		},
		"name": {
			"type": [
				"string",
				"null"
			]
		},
		"caption": {
			"type": [
				"string",
				"null"
			]
		},
		"takenAt": {
			"anyOf": [
				{
					"type": "string",
					"pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}(\\.[0-9]+)?Z$",
					"description": "RFC 3339 timestamp, UTC"
				},
				{
					"type": "null"
				}
			]
		},
		"uploadedAt": {
			"anyOf": [
				{
					"type": "string",
					"pattern": "^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}(\\.[0-9]+)?Z$",
					"description": "RFC 3339 timestamp, UTC"
				},
				{
					"type": "null"
				}
			]
		},
		"coordinate": {
			"anyOf": [
				{
					"minItems": 2,
					"maxItems": 3,
					"type": "array",
					"items": {
						"type": "number"
					},
					"description": "[longitude, latitude, elevationMeters?] in WGS84 (RFC 7946 order)"
				},
				{
					"type": "null"
				}
			]
		},
		"source": {
			"type": "object",
			"properties": {
				"platform": {
					"type": "string",
					"minLength": 1
				},
				"id": {
					"type": "string"
				},
				"url": {
					"type": [
						"string",
						"null"
					]
				},
				"raw": {
					"description": "Scrubbed source representation; only when requested"
				}
			},
			"required": [
				"platform",
				"id"
			],
			"additionalProperties": {}
		},
		"sha256": {
			"description": "Reserved for a future 1.x; not written by 1.0",
			"type": "string"
		}
	},
	"required": [
		"id",
		"file",
		"contentType",
		"rendition",
		"attachedTo",
		"source"
	],
	"additionalProperties": {},
	"description": "Sidecar adjacent to a photo"
}