import {z} from 'zod'

export type GetApiV2OrdBtcRunesQuoteArgs = {runeTicker: string, amount: unknown, side: 'buy' | 'sell', priceToleranceBp?: number | undefined, rbfPreventionListingOnly?: boolean | undefined};

export type GetApiV2OrdBtcRunesQuoteOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const getQuoteResponseSchema = z.object({amount: z.string(), averageUnitPrice: z.number(), bestUnitPrice: z.number(), maxUnitPrice: z.number(), minUnitPrice: z.number(), price: z.number(), orders: z.array(z.object({amount: z.string().optional(), id: z.string().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 available rune quotes with given parameters for the swap
 * 
 * GET /v2/ord/btc/runes/quote
 */
export const getApiV2OrdBtcRunesQuote = async (args: GetApiV2OrdBtcRunesQuoteArgs, options?: GetApiV2OrdBtcRunesQuoteOptions) => {
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.runeTicker != null) query.append("runeTicker", String(args.runeTicker))
if (args.amount != null) query.append("amount", String(args.amount))
if (args.side != null) query.append("side", String(args.side))
if (args.priceToleranceBp != null) query.append("priceToleranceBp", String(args.priceToleranceBp))
if (args.rbfPreventionListingOnly != null) query.append("rbfPreventionListingOnly", String(args.rbfPreventionListingOnly))

const url = `${baseUrl.replace(/\/+$/, '')}/v2/ord/btc/runes/quote${query.size > 0 ? `?${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(getQuoteResponseSchema, await res.json())
};