import {z} from 'zod'

export type GetApiAnalyticsChartsChartCodeMetaArgs = {chart_code: 'proceeds' | 'active-subscriptions' | 'paid-subscriptions-movement' | 'users-overview' | 'free-trials' | 'active-trials' | 'trials-movement' | 'user-to-trial' | 'trial-to-paid' | 'user-to-paid' | 'sales' | 'refunds' | 'refund-rate' | 'arppu' | 'arpu' | 'trial-cancellation' | 'subscription-cancellation' | 'subscriptions-overview' | 'new-subscriptions' | 'mrr' | 'arr' | 'mrr-movement' | 'arr-movement' | 'user-to-trial-conversion' | 'subscription-cancellation-rate', from?: number | undefined, to?: number | undefined, environment?: (0 | 1) | undefined};

export type GetApiAnalyticsChartsChartCodeMetaOptions = {baseUrl?: string | undefined, secretAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const v4AnalyticsSegmentation = z.object({code: z.string(), label: z.string(), category: z.string().optional()});

export const v4AnalyticsFilterCondition = z.object({attribute: z.string(), category: z.string().optional(), label: z.string(), type: z.enum(["list", "text"]), multiple: z.boolean().optional(), persistent: z.boolean().optional(), values: z.array(z.object({code: z.string(), label: z.string()})).optional()});

export const v4AnalyticsChartMeta = z.object({object: z.literal("analytics_chart_meta"), url: z.string(), code: z.string(), title: z.string(), description: z.string().optional(), docUrl: z.string().optional(), isAvailable: z.boolean(), availabilityMessage: z.string().optional(), type_default: z.string().optional(), types: z.array(z.enum(["line", "column", "area", "bar", "pie"])).optional(), units_available: z.array(z.enum(["hour", "day", "week", "month"])), segmentations: z.array(v4AnalyticsSegmentation), filter_conditions: z.array(v4AnalyticsFilterCondition)});

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 analytics chart metadata
 * 
 * GET /analytics/charts/{chart_code}/meta
 */
export const getApiAnalyticsChartsChartCodeMeta = async (args: GetApiAnalyticsChartsChartCodeMetaArgs, options?: GetApiAnalyticsChartsChartCodeMetaOptions) => {
const {baseUrl = "https://api.qonversion.io/v4", fetch: fetchFn = fetch, secretAuth} = options ?? {}

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

if (args.from != null) query.append("from", String(args.from))
if (args.to != null) query.append("to", String(args.to))
if (args.environment != null) query.append("environment", String(args.environment))
if (secretAuth !== undefined) headers.set('authorization', `Bearer ${secretAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/analytics/charts/${encodeURIComponent(String(args.chart_code))}/meta${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(v4AnalyticsChartMeta, await res.json())
};