import {z} from 'zod'

export type GetApiV1AdsCampaignsCampaignIdAdScheduleArgs = {campaignId: string, platform?: 'google' | undefined, includePerformance?: boolean | undefined, windowDays?: number | undefined, fromDate?: string | undefined, toDate?: string | undefined};

export type GetApiV1AdsCampaignsCampaignIdAdScheduleOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const adScheduleWindow = z.object({criterionId: z.string().optional(), resourceName: z.string().optional(), dayOfWeek: z.enum(["MONDAY", "TUESDAY", "WEDNESDAY", "THURSDAY", "FRIDAY", "SATURDAY", "SUNDAY"]).optional(), startHour: z.number().int().gte(0).lte(23).optional(), startMinute: z.union([z.literal(0), z.literal(15), z.literal(30), z.literal(45)]).optional(), endHour: z.number().int().gte(0).lte(24).optional(), endMinute: z.union([z.literal(0), z.literal(15), z.literal(30), z.literal(45)]).optional(), bidModifier: z.number().nullable().optional()});

export const getApiV1AdsCampaignsCampaignIdAdScheduleResponse = z.object({campaignId: z.string().optional(), schedule: z.array(adScheduleWindow).optional(), servesAroundTheClock: z.boolean().optional(), cachedAt: z.string().nullable().optional(), stale: z.boolean().optional(), performance: z.object({windowDays: z.number().int().nullable().optional(), byDayOfWeek: z.array(z.object({dayOfWeek: z.enum(["MONDAY", "TUESDAY", "WEDNESDAY", "THURSDAY", "FRIDAY", "SATURDAY", "SUNDAY"]).optional(), impressions: z.number().int().optional(), clicks: z.number().int().optional(), cost: z.number().optional(), conversions: z.number().optional()})).optional(), byHour: z.array(z.object({hour: z.number().int().gte(0).lte(23).optional(), impressions: z.number().int().optional(), clicks: z.number().int().optional(), cost: z.number().optional(), conversions: z.number().optional()})).optional()}).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
};

/**
 * Read a campaign's ad schedule (dayparting)
 * 
 * GET /v1/ads/campaigns/{campaignId}/ad-schedule
 */
export const getApiV1AdsCampaignsCampaignIdAdSchedule = async (args: GetApiV1AdsCampaignsCampaignIdAdScheduleArgs, options?: GetApiV1AdsCampaignsCampaignIdAdScheduleOptions) => {
const {baseUrl = "https://zernio.com/api", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.platform != null) query.append("platform", String(args.platform))
if (args.includePerformance != null) query.append("includePerformance", String(args.includePerformance))
if (args.windowDays != null) query.append("windowDays", String(args.windowDays))
if (args.fromDate != null) query.append("fromDate", String(args.fromDate))
if (args.toDate != null) query.append("toDate", String(args.toDate))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/ads/campaigns/${encodeURIComponent(String(args.campaignId))}/ad-schedule${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(getApiV1AdsCampaignsCampaignIdAdScheduleResponse, await res.json())
};