import {z} from 'zod'

export type SecurityType = 'stock' | 'etf' | 'mf' | 'cef' | 'fund';

export type GetApiApiLookupSearchArgs = {searchString: string, type?: SecurityType | undefined, exchange?: string | undefined, sector?: string | undefined, includeDelisted?: boolean | undefined, limit?: number | undefined};

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

export const symbolSearchResult = z.object({symbol: z.string().nullable().optional(), exchange: z.string().nullable().optional(), name: z.string().optional(), cik: z.number().int().optional(), seriesId: z.number().int().optional(), type: z.enum(["stock", "etf", "mf", "cef", "fund"]).optional(), sector: z.string().nullable().optional(), industry: z.string().nullable().optional(), industryGroup: z.string().nullable().optional(), compositeFigi: z.string().nullable().optional(), ein: z.number().int().nullable().optional(), formerNames: z.array(z.string()).optional(), status: z.enum(["operating", "delisted"]).optional(), priorTickers: z.array(z.object({symbol: z.string().optional(), exchange: z.string().optional(), lastSeen: z.string().nullable().optional()})).optional()});

export const getApiApiLookupSearchResponse = z.array(symbolSearchResult);

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
};

/**
 * Search symbols
 * 
 * GET /api/lookup/search
 */
export const getApiApiLookupSearch = async (args: GetApiApiLookupSearchArgs, options?: GetApiApiLookupSearchOptions) => {
const {baseUrl = "https://api.stockfit.io/v1", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.searchString != null) query.append("searchString", String(args.searchString))
if (args.type != null) query.append("type", String(args.type))
if (args.exchange != null) query.append("exchange", String(args.exchange))
if (args.sector != null) query.append("sector", String(args.sector))
if (args.includeDelisted != null) query.append("includeDelisted", String(args.includeDelisted))
if (args.limit != null) query.append("limit", String(args.limit))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/lookup/search${query.size > 0 ? `?${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(getApiApiLookupSearchResponse, await res.json())
};