import {z} from 'zod'

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

export const workspaceDashboardSummary = z.object({workspace_id: z.string(), workspace_name: z.string().optional(), total_tokens: z.number().int().gte(0).optional(), total_events: z.number().int().gte(0).optional(), pots_count: z.number().int().gte(0).optional()});

export const dashboardResponse = z.object({integrator_id: z.string(), integrator_name: z.string().optional(), plan: z.string().nullable().optional(), period: z.string(), total_tokens_used: z.number().int().gte(0).optional(), total_tokens_limit: z.number().int().nullable().optional(), tokens_remaining: z.number().int().nullable().optional(), usage_percentage: z.number().gte(0).lte(100).nullable().optional(), bonus_tokens: z.number().int().gte(0).optional(), days_remaining_in_period: z.number().int().gte(0), total_events: z.number().int().gte(0).optional(), top_workspaces: z.array(workspaceDashboardSummary).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 integrator consumption dashboard
 * 
 * GET /integrator/dashboard
 */
export const getApiIntegratorDashboard = async (options: GetApiIntegratorDashboardOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

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