import {z} from 'zod'

export type GetApiInvestorsSlugArgs = {slug: string, depth?: ('slim' | 'standard' | 'full') | undefined};

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

export const profileLoadState = z.object({status: z.enum(["ok", "partial", "unavailable", "failed"]), cause: z.enum(["outage", "defect"]).optional()});

export const investorProfile = z.object({id: z.string(), name: z.string(), slug: z.string(), data_as_of: z.string().nullable().optional(), logo_url: z.string().nullable().optional(), website: z.string().nullable().optional(), investor_type: z.string().nullable().optional(), description: z.string().nullable().optional(), hq_city: z.string().nullable().optional(), hq_country: z.string().nullable().optional(), total_investments_count: z.number().int().nullable().optional(), portfolio_company_count: z.number().int().nullable().optional(), total_capital_deployed: z.number().int().nullable().optional(), avg_check_size: z.number().int().nullable().optional(), typical_check_size_min: z.number().int().nullable().optional(), typical_check_size_max: z.number().int().nullable().optional(), load_states: z.object({portfolio: profileLoadState.optional(), investments: profileLoadState.optional(), family: profileLoadState.optional(), co_investors: profileLoadState.optional()}).optional(), portfolio_companies: z.array(z.object({company_name: z.string().optional(), company_slug: z.string().optional(), company_logo_url: z.string().nullable().optional(), industries: z.array(z.string()).optional(), hq_country: z.string().nullable().optional()})).optional(), investments: z.array(z.object({company_name: z.string().optional(), company_slug: z.string().optional(), event_type: z.string().optional(), date: z.string().nullable().optional(), amount: z.number().int().nullable().optional(), is_lead: z.boolean().optional()})).optional(), sub_funds: z.array(z.object({id: z.string().optional(), name: z.string().optional(), slug: z.string().optional()})).optional()});

export const getApiInvestorsSlugResponse = z.object({data: investorProfile});

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
};

/**
 * Get investor by slug
 * 
 * GET /investors/{slug}
 */
export const getApiInvestorsSlug = async (args: GetApiInvestorsSlugArgs, options?: GetApiInvestorsSlugOptions) => {
const {baseUrl = "https://indexed.vc/api/v1", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (args.depth != null) query.append("depth", String(args.depth))
if (ApiKeyAuth !== undefined) headers.set("X-API-Key", ApiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/investors/${encodeURIComponent(String(args.slug))}${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(getApiInvestorsSlugResponse, await res.json())
};