import {z} from 'zod'

export type CreateApiInvestorsLookupArgs = {body: {domains: Array<string>, names?: Array<string> | undefined} | {domains?: Array<string> | undefined, names: Array<string>}};

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

export const investorCard = z.object({id: z.string(), name: z.string(), slug: z.string(), logo_url: z.string().nullable().optional(), website: z.string().nullable().optional(), investor_type: z.enum(["vc", "pe", "growth_equity", "hedge_fund", "cvc", "family_office", "sovereign_wealth", "accelerator", "incubator", "angel_group", "angel", "individual", "bank", "other", "null"]).nullable().optional(), hq_city: z.string().nullable().optional(), hq_country: z.string().nullable().optional(), total_investments_count: z.number().int().nullable().optional(), _revealed: z.boolean()});

export const investorLookupItem = z.union([z.object({domain: z.string(), name: z.string().optional(), status: z.enum(["hit", "miss", "ambiguous", "insufficient_credits"]), credits_charged: z.number().int().gte(0), data: investorCard.optional(), coverage_requested: z.boolean().optional(), coverage_status: z.enum(["queued", "not_queued"]).optional(), total_matches: z.number().int().gte(2).optional(), has_more: z.boolean().optional(), next_action: z.literal("refine_domain_or_name").optional(), matches: z.array(z.object({id: z.string(), slug: z.string(), name: z.string(), investor_type: z.string().nullable(), hq_country: z.string().nullable(), profile_path: z.string()})).optional()}), z.object({domain: z.string().optional(), name: z.string(), status: z.enum(["hit", "miss", "ambiguous", "insufficient_credits"]), credits_charged: z.number().int().gte(0), data: investorCard.optional(), coverage_requested: z.boolean().optional(), coverage_status: z.enum(["queued", "not_queued"]).optional(), total_matches: z.number().int().gte(2).optional(), has_more: z.boolean().optional(), next_action: z.literal("refine_domain_or_name").optional(), matches: z.array(z.object({id: z.string(), slug: z.string(), name: z.string(), investor_type: z.string().nullable(), hq_country: z.string().nullable(), profile_path: z.string()})).optional()})]);

export const investorLookupSummary = z.object({total_requested: z.number().int().gte(0).lte(100), total_hits: z.number().int().gte(0), total_misses: z.number().int().gte(0), total_ambiguous: z.number().int().gte(0), total_insufficient_credits: z.number().int().gte(0), total_credits_charged: z.number().int().gte(0)});

export const createApiInvestorsLookupResponse = z.object({data: z.array(investorLookupItem), summary: investorLookupSummary});

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
};

/**
 * Resolve up to 100 investor domains or names
 * 
 * POST /investors/lookup
 */
export const createApiInvestorsLookup = async (args: CreateApiInvestorsLookupArgs, options?: CreateApiInvestorsLookupOptions) => {
const {baseUrl = "https://indexed.vc/api/v1", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (ApiKeyAuth !== undefined) headers.set("X-API-Key", ApiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/investors/lookup${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(createApiInvestorsLookupResponse, await res.json())
};