import {z} from 'zod'

export type MMMCurveKindString = 'linear' | 'exp' | 'xyk';

export type GetApiInstructionsMmmCreatePoolArgs = {spotPrice: number, curveType: MMMCurveKindString, curveDelta: number, reinvestBuy: boolean, reinvestSell: boolean, expiry?: number | undefined, lpFeeBp: number, buysideCreatorRoyaltyBp: number, paymentMint: string, collectionSymbol: string, owner: string, solDeposit?: number | undefined, priorityFee?: number | undefined, sharedEscrowCount?: number | undefined};

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

export const iBuffer = z.object({type: z.literal("Buffer"), data: z.array(z.number())});

export const transaction = z.object({tx: iBuffer, txSigned: iBuffer.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
};

/**
 * Get instruction to create a pool
 * 
 * GET /instructions/mmm/create-pool
 */
export const getApiInstructionsMmmCreatePool = async (args: GetApiInstructionsMmmCreatePoolArgs, options?: GetApiInstructionsMmmCreatePoolOptions) => {
const {baseUrl = "https://api-mainnet.magiceden.dev/v2", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.spotPrice != null) query.append("spotPrice", String(args.spotPrice))
if (args.curveType != null) query.append("curveType", String(args.curveType))
if (args.curveDelta != null) query.append("curveDelta", String(args.curveDelta))
if (args.reinvestBuy != null) query.append("reinvestBuy", String(args.reinvestBuy))
if (args.reinvestSell != null) query.append("reinvestSell", String(args.reinvestSell))
if (args.expiry != null) query.append("expiry", String(args.expiry))
if (args.lpFeeBp != null) query.append("lpFeeBp", String(args.lpFeeBp))
if (args.buysideCreatorRoyaltyBp != null) query.append("buysideCreatorRoyaltyBp", String(args.buysideCreatorRoyaltyBp))
if (args.paymentMint != null) query.append("paymentMint", String(args.paymentMint))
if (args.collectionSymbol != null) query.append("collectionSymbol", String(args.collectionSymbol))
if (args.owner != null) query.append("owner", String(args.owner))
if (args.solDeposit != null) query.append("solDeposit", String(args.solDeposit))
if (args.priorityFee != null) query.append("priorityFee", String(args.priorityFee))
if (args.sharedEscrowCount != null) query.append("sharedEscrowCount", String(args.sharedEscrowCount))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/instructions/mmm/create-pool${query.size > 0 ? `?${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(transaction, await res.json())
};