import {z} from 'zod'

export type GetApiFundingV1RoundsInvestorsArgs = {limit?: number | undefined, page?: number | undefined, fundedEntityId?: Array<string> | undefined, investorId?: Array<string> | undefined, type?: (Array<'Accelerator' | 'Debt Financing' | 'Extended Pre Seed' | 'Extended Seed' | 'Extended Series A' | 'Extended Series B' | 'Extended Series C' | 'Extended Series D' | 'Grant' | 'ICO' | 'IPO' | 'Post IPO' | 'Post IPO Debt' | 'Pre Seed' | 'Pre Series A' | 'Pre Series B' | 'Private Token Sale' | 'Public Token Sale' | 'Seed' | 'Series A' | 'Series B' | 'Series C' | 'Series D' | 'Series E' | 'Series F' | 'Series G' | 'Series H' | 'Strategic' | 'Treasury Diversification' | 'Undisclosed'>) | undefined, stage?: (Array<'Seed' | 'Early Stage' | 'Late Stage' | 'Public Equity Offering' | 'Post Public Equity' | 'Miscellaneous'>) | undefined, raisedAmountMax?: number | undefined, raisedAmountMin?: number | undefined, isTokenFunded?: boolean | undefined, announcedBefore?: string | undefined, announcedAfter?: string | undefined};

export type GetApiFundingV1RoundsInvestorsOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const investorOrganization = z.record(z.string(), z.unknown());

export const investorPerson = z.record(z.string(), z.unknown());

export const investorProject = z.record(z.string(), z.unknown());

export const investors = z.object({fundingRoundId: z.string(), organizations: z.array(investorOrganization), persons: z.array(investorPerson), projects: z.array(investorProject)});

export const pagination = z.object({limit: z.number().int(), page: z.number().int(), totalPages: z.number().int(), totalRows: z.number().int()});

export const getApiFundingV1RoundsInvestorsResponse = z.object({data: z.array(investors), error: z.string().optional(), metadata: pagination.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
};

/**
 * GetRoundsInvestors
 * 
 * GET /funding/v1/rounds/investors
 */
export const getApiFundingV1RoundsInvestors = async (args: GetApiFundingV1RoundsInvestorsArgs, options?: GetApiFundingV1RoundsInvestorsOptions) => {
const {baseUrl = "https://api.messari.io", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.page != null) query.append("page", String(args.page))
for (const item of args.fundedEntityId ?? []) query.append("fundedEntityId", String(item))
for (const item of args.investorId ?? []) query.append("investorId", String(item))
for (const item of args.type ?? []) query.append("type", String(item))
for (const item of args.stage ?? []) query.append("stage", String(item))
if (args.raisedAmountMax != null) query.append("raisedAmountMax", String(args.raisedAmountMax))
if (args.raisedAmountMin != null) query.append("raisedAmountMin", String(args.raisedAmountMin))
if (args.isTokenFunded != null) query.append("isTokenFunded", String(args.isTokenFunded))
if (args.announcedBefore != null) query.append("announcedBefore", String(args.announcedBefore))
if (args.announcedAfter != null) query.append("announcedAfter", String(args.announcedAfter))
if (apiKey !== undefined) headers.set("X-Messari-API-Key", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/funding/v1/rounds/investors${query.size > 0 ? `?${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(getApiFundingV1RoundsInvestorsResponse, await res.json())
};