import {z} from 'zod'

export type GetApiV1ReportsContextsContextIdDashboardMetricsArgs = {'X-Request-Id'?: string | undefined, contextId: string, date_from: string, date_to: string, source_id?: string | undefined};

export type GetApiV1ReportsContextsContextIdDashboardMetricsOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const ageBucketDTO = z.object({bucket: z.string().optional(), value: z.number().int().optional()});

export const ruleMatchCountDTO = z.object({count: z.number().int().optional(), id: z.string().optional(), name: z.string().optional()});

export const breakdownMetricsResponse = z.object({byAge: z.array(ageBucketDTO).optional(), byReason: z.record(z.string(), z.number().int()).optional(), byRule: z.array(ruleMatchCountDTO).optional(), bySeverity: z.record(z.string(), z.number().int()).optional()});

export const summaryMetricsResponse = z.object({criticalExposure: z.string().optional(), matchRate: z.number().optional(), oldestExceptionAgeHours: z.number().optional(), pendingExceptions: z.number().int().optional(), totalMatches: z.number().int().optional(), totalTransactions: z.number().int().optional()});

export const trendMetricsResponse = z.object({dates: z.array(z.string()).optional(), exceptions: z.array(z.number().int()).optional(), ingestion: z.array(z.number().int()).optional(), matchRates: z.array(z.number()).optional(), matches: z.array(z.number().int()).optional()});

export const matcherDashboardMetricsResponse = z.object({breakdowns: breakdownMetricsResponse.optional(), summary: summaryMetricsResponse.optional(), trends: trendMetricsResponse.optional(), updatedAt: z.string().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
};

/**
 * Get comprehensive dashboard metrics
 * 
 * GET /v1/reports/contexts/{contextId}/dashboard/metrics
 */
export const getApiV1ReportsContextsContextIdDashboardMetrics = async (args: GetApiV1ReportsContextsContextIdDashboardMetricsArgs, options?: GetApiV1ReportsContextsContextIdDashboardMetricsOptions) => {
const {baseUrl = "https://identity.sandbox.lerian.net", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (args['X-Request-Id'] != null) headers.set("X-Request-Id", String(args['X-Request-Id']))
if (args.date_from != null) query.append("date_from", String(args.date_from))
if (args.date_to != null) query.append("date_to", String(args.date_to))
if (args.source_id != null) query.append("source_id", String(args.source_id))
if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/reports/contexts/${encodeURIComponent(String(args.contextId))}/dashboard/metrics${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(matcherDashboardMetricsResponse, await res.json())
};