@allmaps/annotation/dist/schemas/annotation/annotation.1.js

Functions for generating and parsing IIIF georeference annotations

import { z } from 'zod';
import { PointSchema, ImageServiceSchema, PartOfSchema, PointGeometrySchema, TransformationSchema, ProjectionSchema, ContextSchema } from '../shared.js';
const polygonRegex = /<polygon\s+points="\s*(-?\d+(\.\d+)?,-?\d+(\.\d+)?\s+){2,}-?\d+(\.\d+)?,-?\d+(\.\d+)?\s*"\s*\/>/;
const svgWidthHeightRegex = new RegExp(`^<svg\\s+width="\\d+"\\s+height="\\d+"\\s*>\\s*${polygonRegex.source}\\s*</svg>$`);
const svgHeightWidthRegex = new RegExp(`^<svg\\s+height="\\d+"\\s+width="\\d+"\\s*>\\s*${polygonRegex.source}\\s*</svg>$`);
const svgRegex = new RegExp(`^<svg\\s*>\\s*${polygonRegex.source}\\s*</svg>$`);
const SvgRegexSchema = z.string().regex(svgRegex);
const SvgWidthHeightRegexSchema = z.string().regex(svgWidthHeightRegex);
const SvgHeightWidthRegexSchema = z.string().regex(svgHeightWidthRegex);
export const SvgSelectorSchema = z.object({
    type: z.literal('SvgSelector'),
    value: z.union([
        SvgRegexSchema,
        SvgWidthHeightRegexSchema,
        SvgHeightWidthRegexSchema
    ])
});
// const regionRegex = /^\d+,\d+,\d+,\d+$/
// const sizeRegex = /^\d+,\d+$/
// export const ImageApiSelectorSchema = z.object({
//   type: z.literal('ImageApiSelector'),
//   region: z.string().regex(regionRegex),
//   size: z.string().regex(sizeRegex)
// })
export const Source1Schema = z.object({
    '@id': z.string().url(),
    type: ImageServiceSchema,
    height: z.number().positive(),
    width: z.number().positive(),
    partOf: PartOfSchema.optional()
});
export const Source2Schema = z.object({
    id: z.string().url(),
    type: ImageServiceSchema,
    height: z.number().positive().optional(),
    width: z.number().positive().optional(),
    partOf: PartOfSchema.optional()
});
export const Canvas3Schema = z.object({
    id: z.string().url(),
    type: z.literal('Canvas'),
    height: z.number().positive().optional(),
    width: z.number().positive().optional(),
    partOf: PartOfSchema.optional()
});
export const SourceSchema = z.union([
    Source1Schema,
    Source2Schema,
    Canvas3Schema
]);
export const TargetSchema = z.object({
    type: z.literal('SpecificResource'),
    source: SourceSchema,
    // selector: z.union([SvgSelectorSchema, ImageApiSelectorSchema])
    selector: SvgSelectorSchema
});
export const FeaturePropertiesSchema = z.object({
    resourceCoords: PointSchema
});
export const BodySchema = z.object({
    type: z.literal('FeatureCollection'),
    transformation: TransformationSchema.optional(),
    resourceCrs: ProjectionSchema.optional(),
    features: z.array(z.object({
        type: z.literal('Feature'),
        properties: FeaturePropertiesSchema,
        geometry: PointGeometrySchema
    }))
});
export const AnnotationSchema = z.object({
    id: z.string().optional(),
    type: z.literal('Annotation'),
    '@context': ContextSchema.optional(),
    motivation: z.string().default('georeferencing').optional(),
    created: z.string().datetime().optional(),
    modified: z.string().datetime().optional(),
    target: TargetSchema,
    body: BodySchema
});
export const AnnotationPageSchema = z.object({
    id: z.string().optional(),
    type: z.literal('AnnotationPage'),
    '@context': ContextSchema.optional(),
    items: z.array(AnnotationSchema)
});