import {z} from 'zod'

export type GetApiScop3pApiV1ProteinsBrowseArgs = {page?: number | undefined, page_size?: number | undefined, project_id?: (string | null) | undefined, gene?: (string | null) | undefined, keyword?: (string | null) | undefined};

export type GetApiScop3pApiV1ProteinsBrowseOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const proteinBrowse = z.object({accession: z.string().nullable(), uniprot_id: z.string().nullable(), protein_name: z.string().nullable(), length: z.number().int().nullable().optional(), genes: z.string().nullable().optional(), modification_count: z.number().int().optional(), project_count: z.number().int().optional()});

export const proteinBrowseResponse = z.object({items: z.array(proteinBrowse), total: z.number().int()});

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
};

/**
 * Browse proteins with filtering and pagination
 * 
 * GET /scop3p/api/v1/proteins/browse
 */
export const getApiScop3pApiV1ProteinsBrowse = async (args: GetApiScop3pApiV1ProteinsBrowseArgs, options: GetApiScop3pApiV1ProteinsBrowseOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.page != null) query.append("page", String(args.page))
if (args.page_size != null) query.append("page_size", String(args.page_size))
if (args.project_id != null) query.append("project_id", String(args.project_id))
if (args.gene != null) query.append("gene", String(args.gene))
if (args.keyword != null) query.append("keyword", String(args.keyword))

const url = `${baseUrl.replace(/\/+$/, '')}/scop3p/api/v1/proteins/browse${query.size > 0 ? `?${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(proteinBrowseResponse, await res.json())
};