import {z} from 'zod'

export type GetApiApiV1SlaReportsPkStatsArgs = {pk: string, start_date?: string | undefined, end_date?: string | undefined, output?: ('json' | 'pdf' | 'xls') | undefined};

export type GetApiApiV1SlaReportsPkStatsOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const sLAReportStats = z.object({start_date: z.string().optional(), end_date: z.string().optional(), output: z.enum(["json", "pdf", "xls"]).optional(), has_response_time_data: z.boolean().optional(), uses_daily_response_time_data: z.boolean().optional(), uptime: z.object({}).optional(), groups: z.array(z.object({})).optional(), response_time: z.array(z.object({})).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
};

/**
 * Generates the report for the specified time period
 * 
 * GET /api/v1/sla-reports/{pk}/stats/
 */
export const getApiApiV1SlaReportsPkStats = async (args: GetApiApiV1SlaReportsPkStatsArgs, options: GetApiApiV1SlaReportsPkStatsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.start_date != null) query.append("start_date", String(args.start_date))
if (args.end_date != null) query.append("end_date", String(args.end_date))
if (args.output != null) query.append("output", String(args.output))

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/sla-reports/${encodeURIComponent(String(args.pk))}/stats/${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(sLAReportStats, await res.json())
};