import {z} from 'zod'

export type ParseResultSource = {type?: 'parse_result' | undefined, job_id: string};

export type GenerateDomainRequest = {description?: (string | null) | undefined, source?: (ParseResultSource | null) | undefined, sheet_name?: (string | null) | undefined, display_name?: (string | null) | undefined, slug?: (string | null) | undefined};

export type CreateApiV1DomainsGenerateArgs = {body: GenerateDomainRequest};

export type CreateApiV1DomainsGenerateOptions = {baseUrl: string, APIKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const taxonomyClass = z.object({group: z.string().max(64), subgroup: z.string().max(64), description: z.string(), aliases: z.array(z.string()).optional()});

export const taxonomyOutput = z.object({classes: z.array(taxonomyClass).optional(), allow_other: z.literal(true).optional()});

export const domainValidationError = z.object({code: z.string(), path: z.string(), message: z.string()});

export const domainValidation = z.object({valid: z.boolean(), errors: z.array(domainValidationError).optional(), effective_class_count: z.number().int()});

export const generateDomainResponse = z.object({taxonomy: taxonomyOutput, suggested_slug: z.string().max(64), suggested_display_name: z.string().min(1).max(200), validation: domainValidation});

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
};

/**
 * generate_domain
 * 
 * POST /v1/domains/generate
 */
export const createApiV1DomainsGenerate = async (args: CreateApiV1DomainsGenerateArgs, options: CreateApiV1DomainsGenerateOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/v1/domains/generate${query.size > 0 ? `?${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(generateDomainResponse, await res.json())
};