import {z} from 'zod'

export type GetApiV1TradesArgs = {maxAmount?: number | undefined, minAmount?: number | undefined, endDate?: string | undefined, startDate?: string | undefined, txnType?: ('BUY' | 'SELL') | undefined, userAddress?: string | undefined, tokenName?: string | undefined, cursor?: string | undefined, pageSize?: number | undefined, search?: string | undefined, sortBy?: string | undefined, sortOrder?: ('ASC' | 'DESC') | undefined};

export type GetApiV1TradesOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const tradePageInfoResponseDto = z.object({endCursor: z.string().nullable(), hasNextPage: z.boolean(), hasPreviousPage: z.boolean(), startCursor: z.string().nullable()});

export const tradeItemResponseDto = z.object({createdAt: z.string(), inputAmount: z.number(), outputAmount: z.number(), tokenImage: z.string().nullable(), tokenName: z.string(), tokenSymbol: z.string(), txnId: z.string(), txnType: z.enum(["BUY", "SELL"]), userAddress: z.string()});

export const tradeHistoryResponseDto = z.object({pageInfo: tradePageInfoResponseDto, trades: z.array(tradeItemResponseDto)});

export const getApiV1TradesResponse = z.object({error: z.literal(false), message: z.string(), status: z.number(), data: tradeHistoryResponseDto});

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
};

/**
 * Query trades
 * 
 * GET /v1/trades
 */
export const getApiV1Trades = async (args: GetApiV1TradesArgs, options?: GetApiV1TradesOptions) => {
const {baseUrl = "https://lpad-backend.stage.defi.ovh.gala.com", fetch: fetchFn = fetch} = options ?? {}

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

if (args.maxAmount != null) query.append("maxAmount", String(args.maxAmount))
if (args.minAmount != null) query.append("minAmount", String(args.minAmount))
if (args.endDate != null) query.append("endDate", String(args.endDate))
if (args.startDate != null) query.append("startDate", String(args.startDate))
if (args.txnType != null) query.append("txnType", String(args.txnType))
if (args.userAddress != null) query.append("userAddress", String(args.userAddress))
if (args.tokenName != null) query.append("tokenName", String(args.tokenName))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (args.pageSize != null) query.append("pageSize", String(args.pageSize))
if (args.search != null) query.append("search", String(args.search))
if (args.sortBy != null) query.append("sortBy", String(args.sortBy))
if (args.sortOrder != null) query.append("sortOrder", String(args.sortOrder))

const url = `${baseUrl.replace(/\/+$/, '')}/v1/trades${query.size > 0 ? `?${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(getApiV1TradesResponse, await res.json())
};