import {z} from 'zod'

export type GetApiCabinetReferralPartnerCampaignsCampaignIdStatsArgs = {campaign_id: number};

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

export const dailyStatItem = z.object({date: z.string(), referrals_count: z.number().int().optional(), earnings_kopeks: z.number().int().optional()});

export const periodStats = z.object({days: z.number().int(), referrals_count: z.number().int().optional(), earnings_kopeks: z.number().int().optional()});

export const appCabinetSchemasPartnersPeriodChange = z.object({absolute: z.number().int().optional(), percent: z.number().optional(), trend: z.string().optional()});

export const periodComparison = z.object({current: periodStats, previous: periodStats, referrals_change: appCabinetSchemasPartnersPeriodChange, earnings_change: appCabinetSchemasPartnersPeriodChange});

export const campaignReferralItem = z.object({id: z.number().int(), full_name: z.string(), created_at: z.string(), has_paid: z.boolean().optional(), is_active: z.boolean().optional(), total_earnings_kopeks: z.number().int().optional()});

export const partnerCampaignDetailedStats = z.object({campaign_id: z.number().int(), campaign_name: z.string(), registrations_count: z.number().int().optional(), referrals_count: z.number().int().optional(), earnings_kopeks: z.number().int().optional(), conversion_rate: z.number().optional(), earnings_today: z.number().int().optional(), earnings_week: z.number().int().optional(), earnings_month: z.number().int().optional(), daily_stats: z.array(dailyStatItem).optional(), period_comparison: periodComparison, top_referrals: z.array(campaignReferralItem).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 Stats
 * 
 * GET /cabinet/referral/partner/campaigns/{campaign_id}/stats
 */
export const getApiCabinetReferralPartnerCampaignsCampaignIdStats = async (args: GetApiCabinetReferralPartnerCampaignsCampaignIdStatsArgs, options: GetApiCabinetReferralPartnerCampaignsCampaignIdStatsOptions) => {
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 = `${baseUrl.replace(/\/+$/, '')}/cabinet/referral/partner/campaigns/${encodeURIComponent(String(args.campaign_id))}/stats${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(partnerCampaignDetailedStats, await res.json())
};