import {z} from 'zod'

export type GetApiKgV3EnhanceCombineArgs = {type?: 'Person' | undefined, name?: Array<string> | undefined, url?: Array<string> | undefined, phone?: string | undefined, email?: string | undefined, employer?: string | undefined, title?: string | undefined, school?: string | undefined, location?: string | undefined, ip?: string | undefined, customId?: string | undefined, threshold?: number | undefined, refresh?: boolean | undefined, search?: boolean | undefined, nonCanonicalFacts?: boolean | undefined, jsonmode?: (' ' | 'extended') | undefined, filter?: string | undefined, filterExclude?: string | undefined};

export type GetApiKgV3EnhanceCombineOptions = {baseUrl?: string | undefined, tokenscheme?: string | undefined, fetch?: typeof fetch | undefined};

export const fieldWrapper = z.object({empty: z.boolean().optional()});

export const requestContext: z.ZodType<RequestContext> = z.object({query: z.union([z.object({type: z.string().optional(), location: z.string().optional(), ip: z.string().optional(), phone: z.string().optional(), description: z.string().optional()}), z.object({type: z.string().optional(), location: z.string().optional(), ip: z.string().optional(), phone: z.string().optional(), description: z.string().optional(), email: fieldWrapper.optional(), employer: z.string().optional(), title: z.string().optional(), school: z.string().optional()})]).optional(), query_ctx: z.record(z.string(), z.object({})).optional(), threshold: z.lazy(() => requestContext.optional()), customId: z.lazy(() => requestContext.optional())});

export const objectNode = z.object({});

export const refreshDebugInformation = z.object({url: z.string().optional(), hasResult: z.boolean().optional(), lastCrawlTime: z.number().int().optional(), message: z.string().optional()});

export const delta = z.object({});

export const data = z.object({score: z.number().optional(), entity: objectNode.optional(), errors: z.array(z.string()).optional(), refreshInfo: z.record(z.string(), refreshDebugInformation).optional(), refreshDelta: delta.optional(), entity_ctx: z.record(z.string(), z.object({})).optional()});

export const searchCandidate = z.object({mlScore: z.number().optional(), baseMlScore: z.number().optional(), debugInfo: refreshDebugInformation.optional()});

export const enhanceResponse = z.object({version: z.number().int().optional(), hits: z.number().int().optional(), kgversion: z.string().optional(), request_ctx: requestContext.optional(), data: z.array(data).optional(), errors: z.array(z.string()).optional(), searchInfo: z.record(z.string(), searchCandidate).optional()});

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
};

/**
 * Combine
 * 
 * GET /kg/v3/enhance/combine
 */
export const getApiKgV3EnhanceCombine = async (args: GetApiKgV3EnhanceCombineArgs, options?: GetApiKgV3EnhanceCombineOptions) => {
const {baseUrl = "https://llm.diffbot.com/api/v1/web_search", fetch: fetchFn = fetch, tokenscheme} = options ?? {}

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

if (args.type != null) query.append("type", String(args.type))
for (const item of args.name ?? []) query.append("name", String(item))
for (const item of args.url ?? []) query.append("url", String(item))
if (args.phone != null) query.append("phone", String(args.phone))
if (args.email != null) query.append("email", String(args.email))
if (args.employer != null) query.append("employer", String(args.employer))
if (args.title != null) query.append("title", String(args.title))
if (args.school != null) query.append("school", String(args.school))
if (args.location != null) query.append("location", String(args.location))
if (args.ip != null) query.append("ip", String(args.ip))
if (args.customId != null) query.append("customId", String(args.customId))
if (args.threshold != null) query.append("threshold", String(args.threshold))
if (args.refresh != null) query.append("refresh", String(args.refresh))
if (args.search != null) query.append("search", String(args.search))
if (args.nonCanonicalFacts != null) query.append("nonCanonicalFacts", String(args.nonCanonicalFacts))
if (args.jsonmode != null) query.append("jsonmode", String(args.jsonmode))
if (args.filter != null) query.append("filter", String(args.filter))
if (args.filterExclude != null) query.append("filterExclude", String(args.filterExclude))
if (tokenscheme !== undefined) query.set("token", tokenscheme)

const url = `${baseUrl.replace(/\/+$/, '')}/kg/v3/enhance/combine${query.size > 0 ? `?${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(enhanceResponse, await res.json())
};