import {z} from 'zod'

export type GetApiCampaignsAudienceBuildsBuildIdBriefArgs = {build_id: string};

export type GetApiCampaignsAudienceBuildsBuildIdBriefOptions = {baseUrl: string, HTTPBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const campaignBriefMessage = z.object({role: z.enum(["operator", "assistant"]), text: z.string(), at: z.string()});

export const campaignBriefOffer = z.object({name: z.string().optional(), price: z.string().optional(), includes: z.array(z.string()).optional(), terms: z.array(z.string()).optional()});

export const campaignBriefPromotion = z.object({name: z.string().optional(), details: z.string().optional(), valid_until: z.string().optional()});

export const campaignBriefData = z.object({summary: z.string().optional(), offers: z.array(campaignBriefOffer).optional(), promotions: z.array(campaignBriefPromotion).optional(), sample_messages: z.array(z.string()).optional(), tone: z.string().optional(), must_say: z.array(z.string()).optional(), must_not_say: z.array(z.string()).optional(), handling_rules: z.array(z.string()).optional(), escalate_when: z.array(z.string()).optional(), facts: z.array(z.string()).optional(), office_handles_booking: z.boolean().optional()});

export const campaignBriefBudget = z.object({used_tokens: z.number().int(), limit_tokens: z.number().int(), percent: z.number().int(), state: z.enum(["ok", "approaching", "full"])});

export const campaignBrief = z.object({id: z.string(), build_id: z.string(), campaign_id: z.string().nullable().optional(), status: z.enum(["collecting", "ready"]), messages: z.array(campaignBriefMessage).optional(), brief: campaignBriefData.optional(), open_questions: z.array(z.string()).optional(), rendered_instructions: z.string().optional(), budget: campaignBriefBudget, updated_at: z.string().nullable().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
};

/**
 * Get Campaign Brief
 * 
 * GET /campaigns/audience-builds/{build_id}/brief
 */
export const getApiCampaignsAudienceBuildsBuildIdBrief = async (args: GetApiCampaignsAudienceBuildsBuildIdBriefArgs, options: GetApiCampaignsAudienceBuildsBuildIdBriefOptions) => {
const {baseUrl, fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

if (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/campaigns/audience-builds/${encodeURIComponent(String(args.build_id))}/brief${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(campaignBrief, await res.json())
};