import {z} from 'zod'

export type GetApi30ReportsArgs = {fields?: Array<string> | undefined, exclude_fields?: Array<string> | undefined, count?: number | undefined, offset?: number | undefined, type?: ('regular' | 'plaintext' | 'absplit' | 'rss' | 'variate') | undefined, before_send_time?: string | undefined, since_send_time?: string | undefined};

export type GetApi30ReportsOptions = {baseUrl?: string | undefined, bearerToken?: string | undefined, fetch?: typeof fetch | undefined};

export const getApi30ReportsResponse = z.object({_links: z.array(z.object({href: z.string().optional(), method: z.enum(["GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS", "HEAD"]).optional(), rel: z.string().optional(), schema: z.string().optional(), targetSchema: z.string().optional()})).optional(), reports: z.array(z.object({_links: z.array(z.object({href: z.string().optional(), method: z.enum(["GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS", "HEAD"]).optional(), rel: z.string().optional(), schema: z.string().optional(), targetSchema: z.string().optional()})).optional(), ab_split: z.object({a: z.object({abuse_reports: z.number().int().optional(), bounces: z.number().int().optional(), forwards: z.number().int().optional(), forwards_opens: z.number().int().optional(), last_open: z.string().optional(), opens: z.number().int().optional(), recipient_clicks: z.number().int().optional(), unique_opens: z.number().int().optional(), unsubs: z.number().int().optional()}).optional(), b: z.object({abuse_reports: z.number().int().optional(), bounces: z.number().int().optional(), forwards: z.number().int().optional(), forwards_opens: z.number().int().optional(), last_open: z.string().optional(), opens: z.number().int().optional(), recipient_clicks: z.number().int().optional(), unique_opens: z.number().int().optional(), unsubs: z.number().int().optional()}).optional()}).optional(), abuse_reports: z.number().int().optional(), bounces: z.object({hard_bounces: z.number().int().optional(), soft_bounces: z.number().int().optional(), syntax_errors: z.number().int().optional()}).optional(), campaign_title: z.string().optional(), clicks: z.object({click_rate: z.number().optional(), clicks_total: z.number().int().optional(), last_click: z.string().optional(), unique_clicks: z.number().int().optional(), unique_subscriber_clicks: z.number().int().optional()}).optional(), delivery_status: z.object({can_cancel: z.boolean().optional(), emails_canceled: z.number().int().optional(), emails_sent: z.number().int().optional(), enabled: z.boolean().optional(), status: z.enum(["delivering", "delivered", "canceling", "canceled"]).optional()}).optional(), ecommerce: z.object({currency_code: z.string().optional(), total_orders: z.number().int().optional(), total_revenue: z.number().optional(), total_spent: z.number().optional()}).optional(), emails_sent: z.number().int().optional(), facebook_likes: z.object({facebook_likes: z.number().int().optional(), recipient_likes: z.number().int().optional(), unique_likes: z.number().int().optional()}).optional(), forwards: z.object({forwards_count: z.number().int().optional(), forwards_opens: z.number().int().optional()}).optional(), id: z.string().optional(), industry_stats: z.object({abuse_rate: z.number().optional(), bounce_rate: z.number().optional(), click_rate: z.number().optional(), open_rate: z.number().optional(), type: z.string().optional(), unopen_rate: z.number().optional(), unsub_rate: z.number().optional()}).optional(), list_id: z.string().optional(), list_is_active: z.boolean().optional(), list_name: z.string().optional(), list_stats: z.object({click_rate: z.number().optional(), open_rate: z.number().optional(), proxy_excluded_open_rate: z.number().optional(), sub_rate: z.number().optional(), unsub_rate: z.number().optional()}).optional(), opens: z.object({last_open: z.string().optional(), open_rate: z.number().optional(), opens_total: z.number().int().optional(), proxy_excluded_open_rate: z.number().optional(), proxy_excluded_opens: z.number().int().optional(), proxy_excluded_unique_opens: z.number().int().optional(), unique_opens: z.number().int().optional()}).optional(), preview_text: z.string().optional(), rss_last_send: z.string().optional(), send_time: z.string().optional(), share_report: z.object({share_password: z.string().optional(), share_url: z.string().optional()}).optional(), subject_line: z.string().optional(), timeseries: z.array(z.object({emails_sent: z.number().int().optional(), proxy_excluded_unique_opens: z.number().int().optional(), recipients_clicks: z.number().int().optional(), timestamp: z.string().optional(), unique_opens: z.number().int().optional()})).optional(), timewarp: z.array(z.object({bounces: z.number().int().optional(), clicks: z.number().int().optional(), gmt_offset: z.number().int().optional(), last_click: z.string().optional(), last_open: z.string().optional(), opens: z.number().int().optional(), unique_clicks: z.number().int().optional(), unique_opens: z.number().int().optional()})).optional(), type: z.string().optional(), unsubscribed: z.number().int().optional()})).optional(), total_items: z.number().int().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
};

/**
 * List campaign reports
 * 
 * GET /3.0/reports
 * 
 * Also accepts auth: oauth2
 */
export const getApi30Reports = async (args: GetApi30ReportsArgs, options?: GetApi30ReportsOptions) => {
const {baseUrl = "https://api.mailchimp.com", fetch: fetchFn = fetch, bearerToken} = options ?? {}

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

if (args.fields != null) query.append("fields", args.fields.join(','))
if (args.exclude_fields != null) query.append("exclude_fields", args.exclude_fields.join(','))
if (args.count != null) query.append("count", String(args.count))
if (args.offset != null) query.append("offset", String(args.offset))
if (args.type != null) query.append("type", String(args.type))
if (args.before_send_time != null) query.append("before_send_time", String(args.before_send_time))
if (args.since_send_time != null) query.append("since_send_time", String(args.since_send_time))
if (bearerToken !== undefined) headers.set('authorization', `Bearer ${bearerToken}`)

const url = `${baseUrl.replace(/\/+$/, '')}/3.0/reports${query.size > 0 ? `?${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(getApi30ReportsResponse, await res.json())
};