import {z} from 'zod'

export type KCExternalStateChangeRequest = {kcId: string, state: 'START' | 'PAUSE', envs?: (Array<'PRODUCTION' | 'INTEGRATION' | 'QA' | 'STAGE'>) | undefined};

export type UpdateApiV1KcbotStateArgs = {body: KCExternalStateChangeRequest};

export type UpdateApiV1KcbotStateOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const responseEntity = z.object({body: z.object({}).optional(), statusCode: z.enum(["100", "101", "102", "103", "200", "201", "202", "203", "204", "205", "206", "207", "208", "226", "300", "301", "302", "303", "304", "305", "307", "308", "400", "401", "402", "403", "404", "405", "406", "407", "408", "409", "410", "411", "412", "413", "414", "415", "416", "417", "418", "419", "420", "421", "422", "423", "424", "426", "428", "429", "431", "451", "500", "501", "502", "503", "504", "505", "506", "507", "508", "509", "510", "511"]).optional(), statusCodeValue: z.number().int().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
};

/**
 * Set KC state
 * 
 * PUT /v1/kcbot/state
 */
export const updateApiV1KcbotState = async (args: UpdateApiV1KcbotStateArgs, options?: UpdateApiV1KcbotStateOptions) => {
const {baseUrl = "https://app.aptrinsic.com", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/v1/kcbot/state${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "PUT", 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(responseEntity, await res.json())
};