import {z} from 'zod'

export type GetApiApiV1PerformanceTunerStateOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const power = z.object({watt: z.number().int().gte(0)});

export const timestamp = z.object({nanos: z.number().int(), seconds: z.number().int()});

export const gigaHashrate = z.object({gigahash_per_second: z.number()});

export const powerTargetProfile = z.object({created: timestamp.nullable().optional(), estimated_power_consumption: power.nullable().optional(), measured_hashrate: gigaHashrate.nullable().optional(), target: power.nullable().optional()});

export const powerTargetModeState = z.object({current_target: power.nullable().optional(), profile: powerTargetProfile.nullable().optional()});

export const teraHashrate = z.object({terahash_per_second: z.number()});

export const hashrateTargetProfile = z.object({created: timestamp.nullable().optional(), estimated_power_consumption: power.nullable().optional(), measured_hashrate: gigaHashrate.nullable().optional(), target: teraHashrate.nullable().optional()});

export const hashrateTargetModeState = z.object({current_target: teraHashrate.nullable().optional(), profile: hashrateTargetProfile.nullable().optional()});

export const modeState = z.union([z.object({powertargetmodestate: powerTargetModeState}), z.object({hashratetargetmodestate: hashrateTargetModeState})]);

export const getTunerStateResponse = z.object({mode_state: modeState.nullable().optional(), overall_tuner_state: z.number().int()});

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 tuner state
 * 
 * GET /api/v1/performance/tuner-state
 */
export const getApiApiV1PerformanceTunerState = async (options?: GetApiApiV1PerformanceTunerStateOptions) => {
const {baseUrl = "http://miner", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/performance/tuner-state${query.size > 0 ? `?${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(getTunerStateResponse, await res.json())
};