import {z} from 'zod'

export type GetApiV1SecuritiesTickerHolderTargetsArgs = {ticker: string, limit?: number | undefined, offset?: number | undefined, sort?: string | undefined};

export type GetApiV1SecuritiesTickerHolderTargetsOptions = {baseUrl?: string | undefined, ApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const listingNotice = z.object({status: z.string().nullable().optional(), ticker: z.string().nullable().optional(), delistedOn: z.string().nullable().optional(), successorTicker: z.string().nullable().optional()});

export const overlapPeerDto = z.object({rank: z.number().int().optional(), ticker: z.string().nullable().optional(), company: z.string().nullable().optional(), sharedHolders: z.number().int().optional(), similarity: z.number().optional()});

export const holderTargetDto = z.object({rank: z.number().int().optional(), cik: z.string().nullable().optional(), name: z.string().nullable().optional(), holderType: z.string().nullable().optional(), style: z.string().nullable().optional(), peerValue: z.number().int().optional(), peerWeight: z.number().optional(), peersHeld: z.number().int().optional(), topPeers: z.array(z.string()).nullable().optional(), bookValue: z.number().int().optional()});

export const pageMeta = z.object({limit: z.number().int().optional(), offset: z.number().int().optional(), count: z.number().int().optional(), hasMore: z.boolean().optional(), total: z.number().int().nullable().optional()});

export const holderTargetsResponse = z.object({listingNotice: listingNotice.optional(), ticker: z.string().nullable().optional(), reportDate: z.string().nullable().optional(), sort: z.string().nullable().optional(), sectorFallback: z.boolean().optional(), sector: z.string().nullable().optional(), peers: z.array(overlapPeerDto).nullable().optional(), data: z.array(holderTargetDto).nullable().optional(), meta: pageMeta.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
};

/**
 * Shareholder targeting: the 13F filers of the newest closed quarter that hold the stock's
 * holder-overlap peers (stocks whose active holders overlap most) but no class of the stock
 * itself, ranked by dollars held in the peers or by the peers' share of the filer's book. A
 * stock with no overlap peers falls back to its sector's largest 13F holdings (sectorFallback).
 * Each target carries its 13F book, holder type from regulatory records and measured style.
 * 
 * GET /v1/securities/{ticker}/holder-targets
 */
export const getApiV1SecuritiesTickerHolderTargets = async (args: GetApiV1SecuritiesTickerHolderTargetsArgs, options?: GetApiV1SecuritiesTickerHolderTargetsOptions) => {
const {baseUrl = "https://api.equibles.com", 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.offset != null) query.append("offset", String(args.offset))
if (args.sort != null) query.append("sort", String(args.sort))
if (ApiKey !== undefined) headers.set('authorization', `Bearer ${ApiKey}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/securities/${encodeURIComponent(String(args.ticker))}/holder-targets${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(holderTargetsResponse, await res.json())
};