import {z} from 'zod'

export type ViewFilter = {[key: string]: Array<string>};

export type ViewConnectionsEmail = {addresses?: Array<string> | undefined, include_all_organizers?: boolean | undefined};

export type ViewConnectionsSlack = {id: string, name: string};

export type ViewConnections = {email?: ViewConnectionsEmail | undefined, slack?: Array<ViewConnectionsSlack> | undefined};

export type ViewPrincipalDimension = string;

export type ViewAnomaliesThresholdType = 'Automatic' | 'Percent';

export type ViewAnomaliesThresholdAmount = number;

export type ViewAnomalies = {enabled?: boolean | undefined, threshold_type?: ViewAnomaliesThresholdType | undefined, threshold_amount?: ViewAnomaliesThresholdAmount | undefined, min_cost_impact?: number | undefined};

export type ViewNotifications = {weekly?: boolean | undefined, monthly?: boolean | undefined};

export type ViewNew = {name: string, filter: ViewFilter, connections: ViewConnections, principal_dimension: ViewPrincipalDimension, anomalies?: ViewAnomalies | undefined, notifications?: ViewNotifications | undefined};

export type CreateApiV2ViewsArgs = {'cloudzero-idempotency-key'?: string | undefined, 'cloudzero-test-key'?: string | undefined, body: ViewNew};

export type CreateApiV2ViewsOptions = {baseUrl?: string | undefined, APIKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const viewFilter = z.record(z.string(), z.array(z.string()));

export const viewConnectionsEmail = z.object({addresses: z.array(z.string()).optional(), include_all_organizers: z.boolean().optional()});

export const viewConnectionsSlack = z.object({id: z.string(), name: z.string()});

export const viewConnections = z.object({email: viewConnectionsEmail.optional(), slack: z.array(viewConnectionsSlack).optional()});

export const viewPrincipalDimension = z.string();

export const viewAnomaliesThresholdType = z.enum(["Automatic", "Percent"]);

export const viewAnomaliesThresholdAmount = z.number().int();

export const viewAnomalies = z.object({enabled: z.boolean().optional(), threshold_type: viewAnomaliesThresholdType.optional(), threshold_amount: viewAnomaliesThresholdAmount.optional(), min_cost_impact: z.number().gte(0).optional()});

export const epoch = z.string();

export const isoDatetime = z.string();

export const viewCreateUpdateResponse = z.object({view: z.object({name: z.string(), filter: viewFilter, connections: viewConnections, principal_dimension: viewPrincipalDimension, anomalies: viewAnomalies.optional(), notifications: z.object({weekly: z.boolean(), monthly: z.boolean()}).optional(), id: z.string(), last_updated: epoch, last_edited: isoDatetime}).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
};

/**
 * Create a new View
 * 
 * POST /v2/views
 */
export const createApiV2Views = async (args: CreateApiV2ViewsArgs, options?: CreateApiV2ViewsOptions) => {
const {baseUrl = "https://api.cloudzero.com", fetch: fetchFn = fetch, APIKeyAuth} = options ?? {}

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

if (args['cloudzero-idempotency-key'] != null) headers.set("cloudzero-idempotency-key", String(args['cloudzero-idempotency-key']))
if (args['cloudzero-test-key'] != null) headers.set("cloudzero-test-key", String(args['cloudzero-test-key']))
if (APIKeyAuth !== undefined) headers.set("Authorization", APIKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/views${query.size > 0 ? `?${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(viewCreateUpdateResponse, await res.json())
};