import {z} from 'zod'

export type ProviderControlledIntentResolveRequest = {attribution_token: string};

export type CreateApiProviderActionTicketsResolveArgs = {body: ProviderControlledIntentResolveRequest};

export type CreateApiProviderActionTicketsResolveOptions = {baseUrl?: string | undefined, ProviderKey?: string | undefined, fetch?: typeof fetch | undefined};

export const providerControlledIntent = z.object({demand_topic: z.enum(["payments", "commerce", "jobs", "data", "search", "weather", "maps", "email", "messaging", "image", "video", "audio", "documents", "security", "finance", "health", "education", "news", "analytics", "automation", "productivity", "identity", "storage", "ai-tools", "developer-tools", "other"]), region_code: z.string().optional(), budget_band: z.enum(["unspecified", "under_100", "100_499", "500_1999", "2000_plus"]), urgency: z.enum(["unspecified", "now", "7_days", "30_days", "researching"]), requirement_flags: z.array(z.enum(["api_access", "mcp", "sandbox", "self_serve", "enterprise", "compliance", "multilingual", "human_support"]))});

export const providerControlledIntentResolution = z.object({resolver_contract_version: z.literal("nhs-provider-controlled-intent-resolver-v1"), ticket_id: z.string(), offer_id: z.string(), offer_version: z.number().int().gte(1), action_type: z.enum(["lead", "demo", "trial", "signup", "purchase", "quote", "application", "booking"]), controlled_intent: providerControlledIntent, observed_at: z.string(), intent_available_until: z.string(), consent_version: z.literal("nhs-provider-controlled-intent-disclosure-consent-v1")});

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
};

/**
 * Resolve separately consented controlled intent after an observed handoff
 * 
 * POST /provider/action-tickets/resolve
 */
export const createApiProviderActionTicketsResolve = async (args: CreateApiProviderActionTicketsResolveArgs, options?: CreateApiProviderActionTicketsResolveOptions) => {
const {baseUrl = "https://nothumansearch.ai/api/v1", fetch: fetchFn = fetch, ProviderKey} = options ?? {}

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

if (ProviderKey !== undefined) headers.set("X-NHS-Provider-Key", ProviderKey)

const url = `${baseUrl.replace(/\/+$/, '')}/provider/action-tickets/resolve${query.size > 0 ? `?${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(providerControlledIntentResolution, await res.json())
};