import {z} from 'zod'

export type GetApiV1AdminSpendLimitOptions = {baseUrl?: string | undefined, AdminApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const usageLimits = z.object({no_monthly_limit: z.boolean().optional(), monthly_limit_reached: z.boolean(), usage: z.number().nullable().optional(), vibe_usage: z.number().nullable().optional(), total_usage: z.number().nullable().optional(), usage_limit: z.number().nullable().optional()});

export const limitsContext = z.object({completion: usageLimits, last_payment_failure: z.boolean(), last_payment_failure_protection: z.boolean().nullable(), currency: z.string()});

export const limitsOUT = z.object({limits: limitsContext});

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 Spend Limits
 * 
 * GET /v1/admin/spend-limit
 */
export const getApiV1AdminSpendLimit = async (options?: GetApiV1AdminSpendLimitOptions) => {
const {baseUrl = "https://api.mistral.ai", fetch: fetchFn = fetch, AdminApiKey} = options ?? {}

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

if (AdminApiKey !== undefined) headers.set('authorization', `Bearer ${AdminApiKey}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/admin/spend-limit${query.size > 0 ? `?${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(limitsOUT, await res.json())
};