import {z} from 'zod'

export type GetApiSchedulesArgs = {page?: number | undefined, page_size?: number | undefined, environment?: string | undefined, app?: string | undefined, sort?: ('created_at' | 'updated_at') | undefined};

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

export const pagination = z.object({num_pages: z.number().int(), page: z.number().int(), page_size: z.number().int(), total: z.number().int()});

export const scheduleOwner = z.object({name: z.string().min(1), type: z.enum(["user", "service_account"])});

export const runParameter = z.object({hidden: z.boolean().optional(), is_override: z.boolean().nullable().optional(), name: z.string(), value: z.string()});

export const schedule = z.object({app_name: z.string(), app_status: z.enum(["active", "disabled"]), app_version: z.string().optional(), created_at: z.string(), cron: z.string(), environment: z.string(), id: z.string(), name: z.string(), overlap_policy: z.enum(["allow", "skip"]), owner: scheduleOwner.optional(), parameters: z.array(runParameter).optional(), status: z.enum(["active", "disabled"]), timezone: z.string(), updated_at: z.string()});

export const listSchedulesResponse = z.object({$schema: z.string().optional(), pages: pagination, schedules: z.array(schedule)});

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
};

/**
 * List schedules
 * 
 * GET /schedules
 * 
 * Also accepts auth: APIKeyAuth
 */
export const getApiSchedules = async (args: GetApiSchedulesArgs, options?: GetApiSchedulesOptions) => {
const {baseUrl = "https://api.tower.dev/v1", fetch: fetchFn = fetch, AccessTokenAuth} = options ?? {}

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

if (args.page != null) query.append("page", String(args.page))
if (args.page_size != null) query.append("page_size", String(args.page_size))
if (args.environment != null) query.append("environment", String(args.environment))
if (args.app != null) query.append("app", String(args.app))
if (args.sort != null) query.append("sort", String(args.sort))
if (AccessTokenAuth !== undefined) headers.set('authorization', `Bearer ${AccessTokenAuth}`)

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