import {z} from 'zod'

export type PositionStatus = 'open' | 'closed' | 'all';

export type GetApiPositionsPoolAddressPnlArgs = {pool_address: string, user: string, status?: PositionStatus | undefined, page?: number | undefined, page_size?: number | undefined};

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

export const tokenAmount = z.object({amount: z.string(), amountSol: z.unknown(), usd: z.string()});

export const totalUsd = z.object({sol: z.unknown(), usd: z.string()});

export const tokenPairWithTotal = z.object({tokenX: tokenAmount, tokenY: tokenAmount, total: totalUsd});

export const unrealizedPnL = z.object({balanceTokenX: tokenAmount, balanceTokenY: tokenAmount, balances: z.number(), balancesSol: z.unknown(), unclaimedFeeTokenX: tokenAmount, unclaimedFeeTokenY: tokenAmount, unclaimedRewardTokenX: tokenAmount, unclaimedRewardTokenY: tokenAmount});

export const positionPnLData = z.object({allTimeDeposits: tokenPairWithTotal, allTimeFees: tokenPairWithTotal, allTimeWithdrawals: tokenPairWithTotal, closedAt: z.unknown(), createdAt: z.unknown(), feePerTvl24h: z.string(), isClosed: z.boolean(), isOutOfRange: z.unknown(), lowerBinId: z.number().int(), maxPrice: z.string(), minPrice: z.string(), pnlPctChange: z.string(), pnlSol: z.unknown(), pnlSolPctChange: z.unknown(), pnlUsd: z.string(), poolActiveBinId: z.unknown(), poolActivePrice: z.unknown(), positionAddress: z.string(), unrealizedPnl: unrealizedPnL.optional(), upperBinId: z.number().int()});

export const getPoolPositionPnLResponse = z.object({hasNext: z.boolean(), page: z.number().int().gte(0), pageSize: z.number().int().gte(0), positions: z.array(positionPnLData), rewardTokenX: z.unknown(), rewardTokenXPrice: z.string(), rewardTokenY: z.unknown(), rewardTokenYPrice: z.string(), solPrice: z.unknown(), tokenX: z.unknown(), tokenXPrice: z.string(), tokenY: z.unknown(), tokenYPrice: z.string(), totalCount: z.number().int().gte(0)});

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 position PnL data (open and closed positions with on-the-fly calculation)
 * 
 * GET /positions/{pool_address}/pnl
 */
export const getApiPositionsPoolAddressPnl = async (args: GetApiPositionsPoolAddressPnlArgs, options?: GetApiPositionsPoolAddressPnlOptions) => {
const {baseUrl = "https://damm-api.meteora.ag", fetch: fetchFn = fetch} = options ?? {}

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

if (args.user != null) query.append("user", String(args.user))
if (args.status != null) query.append("status", String(args.status))
if (args.page != null) query.append("page", String(args.page))
if (args.page_size != null) query.append("page_size", String(args.page_size))

const url = `${baseUrl.replace(/\/+$/, '')}/positions/${encodeURIComponent(String(args.pool_address))}/pnl${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(getPoolPositionPnLResponse, await res.json())
};