import {z} from 'zod'

export type GetApiV1ReportingArgs = {'x-checkly-account'?: string | undefined, from?: string | undefined, to?: string | undefined, quickRange?: ('last24Hrs' | 'last7Days' | 'last30Days' | 'thisWeek' | 'thisMonth' | 'lastWeek' | 'lastMonth') | undefined, filterByTags?: Array<string> | undefined, deactivated?: (boolean | null) | undefined, granularity?: ('day' | 'week' | 'month') | undefined, timezone?: string | undefined};

export type GetApiV1ReportingOptions = {baseUrl?: string | undefined, Bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const reportingTagList = z.array(z.string());

export const reportingAggregate = z.object({successRatio: z.number().gte(0), avg: z.number().gte(0), p95: z.number().gte(0), p99: z.number().gte(0)});

export const reportingBucketAggregate = z.object({successRatio: z.number().gte(0), avg: z.number().gte(0), p95: z.number().gte(0), p99: z.number().gte(0), from: z.string(), to: z.string()});

export const reportingBucketAggregateList = z.array(reportingBucketAggregate);

export const reporting = z.object({name: z.string(), checkId: z.string(), checkType: z.string(), deactivated: z.boolean(), tags: reportingTagList, aggregate: reportingAggregate.optional(), aggregates: reportingBucketAggregateList.optional()});

export const reportingList = z.array(reporting);

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 a report with aggregate statistics for checks and check groups.
 * 
 * GET /v1/reporting
 */
export const getApiV1Reporting = async (args: GetApiV1ReportingArgs, options?: GetApiV1ReportingOptions) => {
const {baseUrl = "https://api.checklyhq.com", fetch: fetchFn = fetch, Bearer} = options ?? {}

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

if (args['x-checkly-account'] != null) headers.set("x-checkly-account", String(args['x-checkly-account']))
if (args.from != null) query.append("from", String(args.from))
if (args.to != null) query.append("to", String(args.to))
if (args.quickRange != null) query.append("quickRange", String(args.quickRange))
for (const item of args.filterByTags ?? []) query.append("filterByTags", String(item))
if (args.deactivated != null) query.append("deactivated", String(args.deactivated))
if (args.granularity != null) query.append("granularity", String(args.granularity))
if (args.timezone != null) query.append("timezone", String(args.timezone))
if (Bearer !== undefined) headers.set('authorization', `Bearer ${Bearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/reporting${query.size > 0 ? `?${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(reportingList, await res.json())
};