import {z} from 'zod'

export type GetApiEarnOpportunitiesArgs = {pageCursor?: string | undefined, pageSize?: number | undefined, sortBy?: string | undefined, order?: ('ASC' | 'DESC') | undefined};

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

export const earnAsset = z.object({address: z.string().optional(), symbol: z.string().optional(), decimals: z.number().int().optional(), assetId: z.string().optional()});

export const apy = z.object({native: z.number().optional(), gross: z.number().optional(), net: z.number().optional(), supplyIncentiveApy: z.number().optional()});

export const exposure = z.object({address: z.string(), amount: z.string(), symbol: z.string().optional(), decimals: z.number().int().optional(), assetId: z.string().optional(), amountUsd: z.string().optional()});

export const earnCurator = z.object({name: z.string().optional(), iconUrl: z.string().optional()});

export const earnMetadata = z.object({name: z.string().optional(), iconUrl: z.string().optional()});

export const opportunity = z.object({id: z.string().optional(), providerId: z.enum(["MORPHO", "AAVE"]).optional(), type: z.enum(["VAULT", "MARKET"]).optional(), chainId: z.string().optional(), address: z.string().optional(), name: z.string().optional(), symbol: z.string().optional(), principalAsset: earnAsset.optional(), positionAsset: earnAsset.optional(), totalAssets: z.string().optional(), totalAssetsUsd: z.string().optional(), liquidity: z.string().optional(), liquidityUsd: z.string().optional(), apy: apy.optional(), performanceFee: z.string().optional(), managementFee: z.string().optional(), exposureType: z.enum(["UNSPECIFIED", "VAULT_ALLOCATION", "MARKET_COLLATERAL"]).optional(), exposure: z.array(exposure).optional(), curator: earnCurator.optional(), metadata: earnMetadata.optional()});

export const getOpportunitiesResponse = z.object({data: z.array(opportunity), next: z.string().optional(), prev: z.string().optional(), total: z.number().int()});

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 list of earn opportunities
 * 
 * GET /earn/opportunities
 */
export const getApiEarnOpportunities = async (args: GetApiEarnOpportunitiesArgs, options?: GetApiEarnOpportunitiesOptions) => {
const {baseUrl = "https://api.fireblocks.io/v1", fetch: fetchFn = fetch} = options ?? {}

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

if (args.pageCursor != null) query.append("pageCursor", String(args.pageCursor))
if (args.pageSize != null) query.append("pageSize", String(args.pageSize))
if (args.sortBy != null) query.append("sortBy", String(args.sortBy))
if (args.order != null) query.append("order", String(args.order))

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