import {z} from 'zod'

export type GetApiAnalyticsQueryArgs = {metrics: Array<string>, groupBy?: Array<string> | undefined, range?: string | undefined, start?: string | undefined, end?: string | undefined, asOf?: string | undefined, timeZone?: string | undefined, personaIds?: Array<string> | undefined, memberIds?: Array<string> | undefined, segmentIds?: Array<string> | undefined, sepDestinations?: Array<string> | undefined, repMetrics?: Array<string> | undefined, sort?: string | undefined, direction?: ('asc' | 'desc') | undefined, limit?: number | undefined, cursor?: string | undefined};

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

export const analyticsColumn = z.object({name: z.string(), role: z.string(), type: z.string().optional(), unit: z.string().optional(), temporality: z.string().optional(), nullable: z.boolean().optional()});

export const analyticsQueryResponse = z.object({success: z.literal(true), data: z.array(z.record(z.string(), z.union([z.string().nullable(), z.number().nullable(), z.array(z.string()).nullable()]))), meta: z.object({entity: z.string(), groupBy: z.array(z.string()), time: z.object({start: z.string().optional(), end: z.string().optional(), timeZone: z.string().optional(), asOf: z.string().optional()}), scope: z.object({teams: z.array(z.object({id: z.string(), name: z.string()})), repCount: z.number().int()}), columns: z.array(analyticsColumn), rowCount: z.number().int(), totalRows: z.number().int(), nextCursor: z.string().optional(), notes: z.array(z.string())})});

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
};

/**
 * Query analytics metrics
 * 
 * GET /analytics/query
 */
export const getApiAnalyticsQuery = async (args: GetApiAnalyticsQueryArgs, options?: GetApiAnalyticsQueryOptions) => {
const {baseUrl = "https://api.commonroom.io/api/v2", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

for (const item of args.metrics ?? []) query.append("metrics", String(item))
for (const item of args.groupBy ?? []) query.append("groupBy", String(item))
if (args.range != null) query.append("range", String(args.range))
if (args.start != null) query.append("start", String(args.start))
if (args.end != null) query.append("end", String(args.end))
if (args.asOf != null) query.append("asOf", String(args.asOf))
if (args.timeZone != null) query.append("timeZone", String(args.timeZone))
for (const item of args.personaIds ?? []) query.append("personaIds", String(item))
for (const item of args.memberIds ?? []) query.append("memberIds", String(item))
for (const item of args.segmentIds ?? []) query.append("segmentIds", String(item))
for (const item of args.sepDestinations ?? []) query.append("sepDestinations", String(item))
for (const item of args.repMetrics ?? []) query.append("repMetrics", String(item))
if (args.sort != null) query.append("sort", String(args.sort))
if (args.direction != null) query.append("direction", String(args.direction))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

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