import {z} from 'zod'

export type AudienceInsightType = 'YOUR_TOTAL_AUDIENCE' | 'YOUR_ENGAGED_AUDIENCE' | 'PINTEREST_TOTAL_AUDIENCE';

export type GetApiAdAccountsAdAccountIdAudienceInsightsArgs = {ad_account_id: string, audience_insight_type: AudienceInsightType};

export type GetApiAdAccountsAdAccountIdAudienceInsightsOptions = {baseUrl?: string | undefined, pinterestOauth2?: string | undefined, fetch?: typeof fetch | undefined};

export const audienceSubcategory = z.object({id: z.string().optional(), index: z.number().optional(), key: z.string().optional(), name: z.string().optional(), ratio: z.number().optional()});

export const audienceCategory = z.object({id: z.string().optional(), index: z.number().optional(), key: z.string().optional(), name: z.string().optional(), ratio: z.number().optional(), subcategories: z.array(audienceSubcategory).optional()});

export const audienceDemographicValue = z.object({key: z.string().optional(), name: z.string().optional(), ratio: z.number().optional()});

export const audienceDemographics = z.object({ages: z.array(audienceDemographicValue).optional(), countries: z.array(audienceDemographicValue).optional(), devices: z.array(audienceDemographicValue).optional(), genders: z.array(audienceDemographicValue).optional(), metros: z.array(audienceDemographicValue).optional()});

export const audienceInsightType = z.enum(["YOUR_TOTAL_AUDIENCE", "YOUR_ENGAGED_AUDIENCE", "PINTEREST_TOTAL_AUDIENCE"]);

export const audienceInsights = z.object({categories: z.array(audienceCategory).optional(), date: z.string().nullable().optional(), demographics: audienceDemographics.optional(), size: z.number().int().optional(), size_is_upper_bound: z.boolean().optional(), type: audienceInsightType.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 audience insights
 * 
 * GET /ad_accounts/{ad_account_id}/audience_insights
 * 
 * Also accepts auth: client_credentials
 */
export const getApiAdAccountsAdAccountIdAudienceInsights = async (args: GetApiAdAccountsAdAccountIdAudienceInsightsArgs, options?: GetApiAdAccountsAdAccountIdAudienceInsightsOptions) => {
const {baseUrl = "https://api.pinterest.com/v5", fetch: fetchFn = fetch, pinterestOauth2} = options ?? {}

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

if (args.audience_insight_type != null) query.append("audience_insight_type", String(args.audience_insight_type))
if (pinterestOauth2 !== undefined) headers.set('authorization', `Bearer ${pinterestOauth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/ad_accounts/${encodeURIComponent(String(args.ad_account_id))}/audience_insights${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(audienceInsights, await res.json())
};