import {z} from 'zod'

export type CustomPipelineType = 'JAVA' | 'PYTHON';

export type CustomPipelineProperties = {secrets?: Array<string> | undefined, flink_version?: string | undefined, additional_metrics?: Array<string> | undefined, flink_configuration?: {[key: string]: string} | undefined};

export type SnapshotConfiguration = {enabled?: boolean | undefined, cron?: string | undefined, retention_period_seconds?: number | undefined};

export type CustomPipelineRequestCommon = {name?: string | undefined, description?: string | undefined, type?: CustomPipelineType | undefined, job_file_sha?: string | undefined, job_arguments?: string | undefined, entry_class?: string | undefined, properties?: CustomPipelineProperties | undefined, snapshot_configuration?: SnapshotConfiguration | undefined};

export type CreateApiPipelinesCustomArgs = {body: CustomPipelineRequestCommon};

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

export const resourceId = z.string();

export const snapshotConfiguration = z.object({enabled: z.boolean().optional(), cron: z.string().optional(), retention_period_seconds: z.number().optional()});

export const autoscaleConfiguration = z.object({pause_conditions: z.record(z.string(), z.string().nullable()).nullable().optional(), resume_conditions: z.record(z.string(), z.string().nullable()).nullable().optional()}).nullable();

export const resourceVersionNumber = z.number().int();

export const resourceIsLatestFlag = z.boolean();

export const runtimeError = z.object({message: z.string().optional(), raw_exception: z.string().optional(), timestamp: z.string().optional()});

export const requestedTasks = z.number().int();

export const actualTasks = z.number().int();

export const requestedTaskSize = z.string().nullable();

export const actualTaskSize = z.string().nullable();

export const pipeline = z.object({id: resourceId, name: z.string(), description: z.string().optional(), type: z.enum(["JAVA", "PYTHON"]), sql: z.string().optional(), snapshot_configuration: snapshotConfiguration.optional(), autoscale_configuration: autoscaleConfiguration.optional(), properties: z.object({secrets: z.array(z.string()).optional(), flink_version: z.string().optional(), additional_metrics: z.array(z.string()).optional(), flink_configuration: z.record(z.string(), z.string()).optional()}).optional(), job_file_sha: z.string().optional(), job_arguments: z.string().optional(), entry_class: z.string().optional(), version: resourceVersionNumber, is_latest: resourceIsLatestFlag.optional(), active_version: z.number().int().nullable().optional(), latest_version: z.number().int().optional(), last_runtime_error: runtimeError.optional(), last_activated_time: z.string().optional(), target_state: z.enum(["RUNNING", "STOPPED"]).optional(), actual_state: z.enum(["UNKNOWN", "STARTING", "RUNNING", "FAILED", "FINISHED", "STOPPED", "PAUSING", "PAUSED"]).optional(), create_time: z.string(), update_time: z.string().optional(), requested_tasks: requestedTasks.optional(), actual_tasks: actualTasks.optional(), requested_task_size: requestedTaskSize.optional(), actual_task_size: actualTaskSize.optional()}).and(z.record(z.string(), z.string().nullable())).nullable();

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
};

/**
 * Create a pipeline using a custom job file.
 * 
 * POST /pipelines/custom
 * 
 * Also accepts auth: oauth2
 */
export const createApiPipelinesCustom = async (args: CreateApiPipelinesCustomArgs, options?: CreateApiPipelinesCustomOptions) => {
const {baseUrl = "https://replace-with-account.api.decodable.co/v1alpha2", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

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

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

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