import {z} from 'zod'

export type GetApiApiInstitutionTickerOwnershipArgs = {ticker: string, date?: string | undefined, limit?: number | undefined, order?: ('name' | 'short_name' | 'first_buy' | 'units' | 'units_change' | 'units_changed' | 'value' | 'avg_price' | 'perc_outstanding' | 'perc_units_changed' | 'activity' | 'perc_inst_value' | 'perc_share_value') | undefined, order_direction?: ('desc' | 'asc') | undefined, page?: number | undefined, tags?: Array<string> | undefined};

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

export const institutionOwnership = z.object({avg_price: z.string().optional(), filing_date: z.string().optional(), first_buy: z.string().optional(), historical_units: z.array(z.number().int()).optional(), inst_share_value: z.string().optional(), inst_value: z.string().optional(), name: z.string().optional(), people: z.array(z.string()).optional(), report_date: z.string().optional(), shares_outstanding: z.string().optional(), short_name: z.string().optional(), tags: z.array(z.string()).optional(), units: z.number().int().optional(), units_change: z.number().int().optional(), value: z.number().int().optional()});

export const institutionOwnershipResponse = z.object({data: z.array(institutionOwnership).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
};

/**
 * Retrieve Institutional Ownership
 * 
 * GET /api/institution/{ticker}/ownership
 */
export const getApiApiInstitutionTickerOwnership = async (args: GetApiApiInstitutionTickerOwnershipArgs, options?: GetApiApiInstitutionTickerOwnershipOptions) => {
const {baseUrl = "https://api.unusualwhales.com", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (args.date != null) query.append("date", String(args.date))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.order != null) query.append("order", String(args.order))
if (args.order_direction != null) query.append("order_direction", String(args.order_direction))
if (args.page != null) query.append("page", String(args.page))
for (const item of args.tags ?? []) query.append("tags", String(item))
if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/institution/${encodeURIComponent(String(args.ticker))}/ownership${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(institutionOwnershipResponse, await res.json())
};