import {z} from 'zod'

export type Configv1DerivedMetricLabelMatcherMatcherType = 'EXACT';

export type Configv1DerivedMetricLabelMatcher = {type?: Configv1DerivedMetricLabelMatcherMatcherType | undefined, name?: string | undefined, value?: string | undefined};

export type DerivedMetricSelector = {labels?: Array<Configv1DerivedMetricLabelMatcher> | undefined};

export type DerivedMetricVariable = {name?: string | undefined, default_prometheus_selector?: string | undefined};

export type DerivedMetricQuery = {prometheus_expr?: string | undefined, variables?: Array<DerivedMetricVariable> | undefined};

export type DerivedMetricSelectorQuery = {selector?: DerivedMetricSelector | undefined, query?: DerivedMetricQuery | undefined};

export type Configv1DerivedMetric = {name?: string | undefined, slug?: string | undefined, created_at?: string | undefined, updated_at?: string | undefined, metric_name?: string | undefined, description?: string | undefined, queries?: Array<DerivedMetricSelectorQuery> | undefined};

export type Configv1CreateDerivedMetricRequest = {derived_metric?: Configv1DerivedMetric | undefined, dry_run?: boolean | undefined};

export type CreateApiApiV1ConfigDerivedMetricsArgs = {body: Configv1CreateDerivedMetricRequest};

export type CreateApiApiV1ConfigDerivedMetricsOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const configv1DerivedMetricLabelMatcherMatcherType = z.literal("EXACT");

export const configv1DerivedMetricLabelMatcher = z.object({type: configv1DerivedMetricLabelMatcherMatcherType.optional(), name: z.string().optional(), value: z.string().optional()});

export const derivedMetricSelector = z.object({labels: z.array(configv1DerivedMetricLabelMatcher).optional()});

export const derivedMetricVariable = z.object({name: z.string().optional(), default_prometheus_selector: z.string().optional()});

export const derivedMetricQuery = z.object({prometheus_expr: z.string().optional(), variables: z.array(derivedMetricVariable).optional()});

export const derivedMetricSelectorQuery = z.object({selector: derivedMetricSelector.optional(), query: derivedMetricQuery.optional()});

export const configv1DerivedMetric = z.object({name: z.string().optional(), slug: z.string().optional(), created_at: z.string().optional(), updated_at: z.string().optional(), metric_name: z.string().optional(), description: z.string().optional(), queries: z.array(derivedMetricSelectorQuery).optional()});

export const configv1CreateDerivedMetricResponse = z.object({derived_metric: configv1DerivedMetric.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
};

/**
 * POST /api/v1/config/derived-metrics
 */
export const createApiApiV1ConfigDerivedMetrics = async (args: CreateApiApiV1ConfigDerivedMetricsArgs, options: CreateApiApiV1ConfigDerivedMetricsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/config/derived-metrics${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(configv1CreateDerivedMetricResponse, await res.json())
};