import {z} from 'zod'

export type AiGatewayBudgetInstanceResetAttributes = {instance_key: string, reason?: string | undefined};

export type AiGatewayBudgetInstanceType = 'budget-instances';

export type AiGatewayBudgetInstanceResetData = {attributes: AiGatewayBudgetInstanceResetAttributes, type: AiGatewayBudgetInstanceType};

export type AiGatewayBudgetInstanceResetRequest = {data: AiGatewayBudgetInstanceResetData};

export type CreateApiApiV2BudgetsIdInstancesResetArgs = {id: string, body: AiGatewayBudgetInstanceResetRequest};

export type CreateApiApiV2BudgetsIdInstancesResetOptions = {baseUrl?: string | undefined, apiKeyAuth?: string | undefined, appKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const aiGatewayBudgetInstanceAttributes = z.object({budget_id: z.string(), effective_capacity_microcents: z.number().int(), instance_key: z.string(), modified_at: z.string(), spend_microcents: z.number().int(), split_dims: z.record(z.string(), z.string()), window_start: z.string()});

export const aiGatewayBudgetInstanceType = z.literal("budget-instances");

export const aiGatewayBudgetInstanceResource = z.object({attributes: aiGatewayBudgetInstanceAttributes, id: z.string(), type: aiGatewayBudgetInstanceType});

export const aiGatewayBudgetInstanceResponse = z.object({data: aiGatewayBudgetInstanceResource});

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
};

/**
 * Reset a budget instance's spend
 * 
 * POST /api/v2/budgets/{id}/instances/reset
 * 
 * Also accepts auth: AuthZ
 */
export const createApiApiV2BudgetsIdInstancesReset = async (args: CreateApiApiV2BudgetsIdInstancesResetArgs, options?: CreateApiApiV2BudgetsIdInstancesResetOptions) => {
const {baseUrl = "https://api.datadoghq.com", fetch: fetchFn = fetch, apiKeyAuth, appKeyAuth} = options ?? {}

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

if (apiKeyAuth !== undefined) headers.set("DD-API-KEY", apiKeyAuth)
if (appKeyAuth !== undefined) headers.set("DD-APPLICATION-KEY", appKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v2/budgets/${encodeURIComponent(String(args.id))}/instances/reset${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(aiGatewayBudgetInstanceResponse, await res.json())
};