import {z} from 'zod'

export type GetApiImplementationArgs = {sort?: (Array<'arch' | '-arch' | 'asciiArmor' | '-asciiArmor' | 'downloadUrl' | '-downloadUrl' | 'filename' | '-filename' | 'keyId' | '-keyId' | 'os' | '-os' | 'shasum' | '-shasum' | 'shasumsSignatureUrl' | '-shasumsSignatureUrl' | 'shasumsUrl' | '-shasumsUrl' | 'source' | '-source' | 'sourceUrl' | '-sourceUrl' | 'trustSignature' | '-trustSignature' | 'id' | '-id'>) | undefined, 'fields[implementation]'?: (Array<'arch' | 'asciiArmor' | 'downloadUrl' | 'filename' | 'keyId' | 'os' | 'shasum' | 'shasumsSignatureUrl' | 'shasumsUrl' | 'source' | 'sourceUrl' | 'trustSignature' | 'version'>) | undefined, include?: Array<'version'> | undefined, 'filter[implementation]'?: string | undefined, filter?: string | undefined, 'page[number]'?: number | undefined, 'page[size]'?: number | undefined, 'page[offset]'?: number | undefined, 'page[limit]'?: number | undefined, 'page[totals]'?: string | undefined};

export type GetApiImplementationOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const implementation = z.object({type: z.string().optional(), id: z.string().optional(), attributes: z.object({arch: z.string().optional(), asciiArmor: z.string().optional(), downloadUrl: z.string().optional(), filename: z.string().optional(), keyId: z.string().optional(), os: z.string().optional(), shasum: z.string().optional(), shasumsSignatureUrl: z.string().optional(), shasumsUrl: z.string().optional(), source: z.string().optional(), sourceUrl: z.string().optional(), trustSignature: z.string().optional()}).optional(), relationships: z.object({version: z.object({id: z.string().optional(), type: z.literal("version").optional()}).optional()}).optional()});

export const getApiImplementationResponse = z.object({data: z.array(implementation).optional(), included: z.array(z.object({attributes: z.object({}).optional(), id: z.string().optional(), relationships: z.object({}).optional(), type: z.string().optional()})).optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Returns the collection of type implementation
 * 
 * GET /implementation
 */
export const getApiImplementation = async (args: GetApiImplementationArgs, options: GetApiImplementationOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/vnd.api+json")

for (const item of args.sort ?? []) query.append("sort", String(item))
for (const item of args['fields[implementation]'] ?? []) query.append("fields[implementation]", String(item))
for (const item of args.include ?? []) query.append("include", String(item))
if (args['filter[implementation]'] != null) query.append("filter[implementation]", String(args['filter[implementation]']))
if (args.filter != null) query.append("filter", String(args.filter))
if (args['page[number]'] != null) query.append("page[number]", String(args['page[number]']))
if (args['page[size]'] != null) query.append("page[size]", String(args['page[size]']))
if (args['page[offset]'] != null) query.append("page[offset]", String(args['page[offset]']))
if (args['page[limit]'] != null) query.append("page[limit]", String(args['page[limit]']))
if (args['page[totals]'] != null) query.append("page[totals]", String(args['page[totals]']))

const url = `${baseUrl.replace(/\/+$/, '')}/implementation${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(getApiImplementationResponse, await res.json())
};