import {z} from 'zod'

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

export const portfolioRewardsChartEntryDto = z.object({timestamp: z.number(), userRewards: z.string(), totalRewards: z.string()});

export const epochRewardDataDto = z.object({epochId: z.number(), timestamp: z.string(), totalRewards: z.string(), userRewards: z.string(), earnedPercent: z.number()});

export const portfolioRewardsDto = z.object({todaysRewards: z.string(), totalUnpaidRewards: z.string(), totalUserRewardsLastEpoch: z.string(), rewardsChartData: z.array(portfolioRewardsChartEntryDto).optional(), rewardsByEpoch: z.array(epochRewardDataDto)});

export const ammPositionDto = z.object({collateralAmount: z.string().optional(), latestTrade: z.object({}).optional(), market: z.object({}), outcomeIndex: z.number(), outcomeTokenAmount: z.string().optional(), account: z.string().optional()});

export const market = z.object({address: z.string().min(42).max(42).nullable(), title: z.string().max(70), proxyTitle: z.string().max(70).nullable(), description: z.string(), question_id: z.object({}).nullable(), condition_id: z.object({}).nullable(), position_ids: z.array(z.array(z.unknown())).nullable(), outcome_slot_count: z.number().gte(2).lte(2), winning_index: z.number().gte(0).lte(1).nullable(), payout_numerators: z.array(z.string()).nullable(), status: z.string(), og_url: z.string().nullable(), image_url: z.string().nullable(), deadline: z.string(), startAt: z.string().nullable(), hidden: z.boolean(), txHash: z.string(), resolutionTxHash: z.string(), priority_index: z.number()});

export const positionDataDto = z.object({cost: z.string(), fillPrice: z.string(), realisedPnl: z.string(), unrealizedPnl: z.string(), marketValue: z.string()});

export const marketPositionDataDto = z.object({yes: positionDataDto, no: positionDataDto});

export const clobPositionDto = z.object({market: market, positions: marketPositionDataDto, latestTrade: z.object({}).optional(), tokensBalance: z.object({}), orders: z.object({}), rewards: z.object({}).optional()});

export const portfolioPositionsDto = z.object({rewards: portfolioRewardsDto, points: z.number(), accumulativePoints: z.number(), amm: z.array(ammPositionDto), clob: z.array(clobPositionDto), group: z.array(z.object({})).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 Positions
 * 
 * GET /portfolio/positions
 */
export const getApiPortfolioPositions = async (options?: GetApiPortfolioPositionsOptions) => {
const {baseUrl = "https://api.limitless.exchange", fetch: fetchFn = fetch, HmacAuth} = options ?? {}

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

if (HmacAuth !== undefined) headers.set("lmts-api-key", HmacAuth)

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