import {z} from 'zod'

export type RequestMetadata = {paging?: boolean | undefined};

export type GetApiCollectionsArgs = {'ME-Pub-API-Metadata'?: RequestMetadata | undefined, offset?: number | undefined, limit?: number | undefined};

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

export const listedNftType = z.enum(["M2", "MMM", "TENSOR_LISTING", "TENSOR_CNFT_LISTING", "TENSOR_MARKETPLACE_LISTING", "TENSOR_AMM", "TENSOR_AMM_V2", "HADESWAP_AMM", "M3"]);

export const iFloorPriceInfo = z.object({floorPrice: z.number(), floorListedNftType: listedNftType});

export const iCollectionV2 = z.object({symbol: z.string(), name: z.string(), description: z.string(), image: z.string(), twitter: z.string().optional(), discord: z.string().optional(), website: z.string().optional(), isFlagged: z.boolean().optional(), flagMessage: z.string().optional(), categories: z.array(z.string().nullable()).optional(), floorPrice: z.number().optional(), listedCount: z.number().optional(), avgPrice24hr: z.number().optional(), volumeAll: z.number().optional(), isBadged: z.boolean().optional(), hasCNFTs: z.boolean().optional(), isOcp: z.boolean().optional(), splTokens: z.array(z.string()).optional(), floorPriceWithFee: iFloorPriceInfo.optional()});

export const getApiCollectionsResponse = z.array(iCollectionV2);

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
};

/**
 * Get collections
 * 
 * GET /collections
 */
export const getApiCollections = async (args: GetApiCollectionsArgs, options?: GetApiCollectionsOptions) => {
const {baseUrl = "https://api-mainnet.magiceden.dev/v2", fetch: fetchFn = fetch} = options ?? {}

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

if (args['ME-Pub-API-Metadata'] != null) headers.set("ME-Pub-API-Metadata", JSON.stringify(args['ME-Pub-API-Metadata']))
if (args.offset != null) query.append("offset", String(args.offset))
if (args.limit != null) query.append("limit", String(args.limit))

const url = `${baseUrl.replace(/\/+$/, '')}/collections${query.size > 0 ? `?${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(getApiCollectionsResponse, await res.json())
};