import {z} from 'zod'

export type CreateApiCompaniesLookupArgs = {body: {domains: Array<string>}};

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

export const domainMatch = z.object({queried: z.string(), canonical_domain: z.string().nullable(), matched_via: z.enum(["canonical_domain", "alias_domain", "former_website"])});

export const companyCard = z.object({id: z.string(), name: z.string(), slug: z.string(), logo_url: z.string().nullable().optional(), website: z.string().nullable().optional(), short_description: z.string().nullable().optional(), industries: z.array(z.string()).nullable().optional(), hq_city: z.string().nullable().optional(), hq_country: z.string().nullable().optional(), employee_count_range: z.enum(["1-10", "11-50", "51-200", "201-500", "501-1000", "1001-5000", "5001-10000", "10001+", "null"]).nullable().optional(), total_funding_raised: z.number().int().nullable().optional(), operating_status: z.enum(["active", "acquired", "ipo", "closed", "null"]).nullable().optional(), _revealed: z.boolean(), domain_match: domainMatch.optional()});

export const companyDomainLookupItem = z.union([z.object({domain: z.string(), status: z.literal("hit"), credits_charged: z.literal(1), data: companyCard}), z.object({domain: z.string(), status: z.literal("miss"), coverage_requested: z.boolean(), coverage_status: z.enum(["queued", "not_queued", "pending_enrichment", "scope_review", "not_in_coverage_scope"]).optional(), coverage_eta_days: z.number().int().nullable(), credits_charged: z.literal(0)}), z.object({domain: z.string(), status: z.literal("insufficient_credits"), credits_charged: z.literal(0)})]);

export const companyDomainLookupSummary = z.object({total_requested: z.number().int(), total_hits: z.number().int(), total_misses: z.number().int(), total_insufficient_credits: z.number().int(), total_credits_charged: z.number().int()});

export const createApiCompaniesLookupResponse = z.object({data: z.array(companyDomainLookupItem), summary: companyDomainLookupSummary});

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
};

/**
 * Look up up to 100 company domains
 * 
 * POST /companies/lookup
 */
export const createApiCompaniesLookup = async (args: CreateApiCompaniesLookupArgs, options?: CreateApiCompaniesLookupOptions) => {
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 = `${baseUrl.replace(/\/+$/, '')}/companies/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(createApiCompaniesLookupResponse, await res.json())
};