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import { responseToObjects } from './responseToObjects.ts'import { Prefixes, Meta } from './types.ts'import { Context } from './Context.ts'
export const createModel = <Type>(endpoint: string, { prefixes, meta, query }: { prefixes: Prefixes, meta: Meta, query: string }) => {
  const objectCache: Map<string, Type> = new Map()  const context = new Context(prefixes)
  function get (iris: Array<string>): Promise<Array<Type>>  function get (iri: string): Promise<Type>  async function get (input: Array<string> | string) {    const iris = typeof input === 'string' ? [input] : input    const compactedIris = iris.map(iri => context.compactIri(iri))
    const uncachedIris = compactedIris.filter(iri => !objectCache.has(iri))    const cachedIris = compactedIris.filter(iri => objectCache.has(iri))
    const cachedObjects = cachedIris.map(iri => objectCache.get(iri))
    const values = uncachedIris.map(iri => iri.includes('://') ? `<${iri}>` : iri)
    let newObjects = []
    if (uncachedIris.length) {      const preparedQuery = query.replace('VALUES ?s { }', `VALUES ?s { ${values.join(' ')} }`)
      const body = new FormData()      body.set('query', preparedQuery)        const response = await fetch(endpoint, {        method: 'POST',        headers: { accept: 'application/rdf+json' },        body      })  
      const results = await response.json()      newObjects = responseToObjects(results, context, meta)      for (const object of newObjects) {        Object.freeze(object)        objectCache.set(object.id, object)      }    }        const output = [      ...newObjects,      ...cachedObjects    ]
    return typeof input === 'string' ? output.pop() : output    }
  return { get }}