import {z} from 'zod'

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

export type GetApiCompaniesSlugOptions = {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 nullableCompanyReference = z.object({id: z.string().optional(), name: z.string().optional(), slug: z.string().optional(), logo_url: z.string().nullable().optional()}).nullable();

export const companyRelationship = z.object({relationship_type: z.enum(["subsidiary", "brand", "division", "joint_venture"]).optional(), ownership_pct: z.number().nullable().optional(), started_on: z.string().nullable().optional(), company: z.object({id: z.string().optional(), slug: z.string().optional(), name: z.string().optional(), logo_url: z.string().nullable().optional()}).optional()});

export const companyProfile = 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(), short_description: z.string().nullable().optional(), long_description: z.string().nullable().optional(), industries: z.array(z.string()).nullable().optional(), hq_city: z.string().nullable().optional(), hq_state: z.string().nullable().optional(), hq_country: z.string().nullable().optional(), employee_count_range: z.string().nullable().optional(), total_funding_raised: z.number().int().nullable().optional(), operating_status: z.string().nullable().optional(), founded_year: z.number().int().nullable().optional(), last_valuation: z.number().int().nullable().optional(), last_valuation_date: z.string().nullable().optional(), load_states: z.object({relationships: profileLoadState.optional(), acquisitions: profileLoadState.optional(), acquirer: profileLoadState.optional(), parent_company: profileLoadState.optional(), valuation_events: profileLoadState.optional(), technologies: profileLoadState.optional(), app_stack: profileLoadState.optional()}).optional(), acquirer: nullableCompanyReference.optional(), parent_company: nullableCompanyReference.optional(), owners: z.array(companyRelationship).optional(), subsidiaries: z.array(companyRelationship).optional(), acquisitions: z.array(z.object({id: z.string().optional(), name: z.string().optional(), slug: z.string().optional(), 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(), acquisition_date: z.string().nullable().optional(), acquisition_price_usd: z.number().int().nullable().optional()})).optional(), valuation_events: z.array(z.object({id: z.string().optional(), event_type: z.string().optional(), amount_raised_usd: z.number().int().nullable().optional(), announced_date: z.string().nullable().optional(), participants: z.array(z.object({is_lead: z.boolean().optional(), investor: z.object({id: z.string().optional(), name: z.string().optional(), slug: z.string().optional(), investor_type: z.string().nullable().optional()}).optional()})).optional()})).optional(), technologies: z.array(z.object({technology_name: z.string().optional(), category: z.string().nullable().optional(), stack_type: z.literal("tech").optional()})).optional(), app_stack: z.array(z.object({technology_name: z.string().optional(), category: z.string().nullable().optional(), stack_type: z.literal("app").optional()})).optional()});

export const getApiCompaniesSlugResponse = z.object({data: companyProfile});

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 company by slug
 * 
 * GET /companies/{slug}
 */
export const getApiCompaniesSlug = async (args: GetApiCompaniesSlugArgs, options?: GetApiCompaniesSlugOptions) => {
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 = `${baseUrl.replace(/\/+$/, '')}/companies/${encodeURIComponent(String(args.slug))}${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(getApiCompaniesSlugResponse, await res.json())
};