import {z} from 'zod'

export type BatchAction = {kind: 'create' | 'patch' | 'delete', entity: 'node' | 'annotation' | 'vertex' | 'segment' | 'association' | 'arrow' | 'flow_direction' | 'logical_line' | 'visual_reference' | 'subgraph', id?: (string | null) | undefined, body?: ({[key: string]: unknown} | null) | undefined};

export type BatchRequest = {actions: Array<BatchAction>};

export type CreateApiApiV0ComponentsComponentIdSchematicBatchArgs = {component_id: string, vc_id: string, body: BatchRequest};

export type CreateApiApiV0ComponentsComponentIdSchematicBatchOptions = {baseUrl: string, HTTPBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const batchError = z.object({action_index: z.number().int(), description: z.string(), message: z.string()});

export const batchResponse = z.object({status: z.enum(["ok", "error"]), completed: z.number().int(), error: batchError.nullable().optional(), skipped: z.array(batchError).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
};

/**
 * Apply an ordered list of schematic actions atomically
 * 
 * POST /api/v0/components/{component_id}/schematic/batch
 */
export const createApiApiV0ComponentsComponentIdSchematicBatch = async (args: CreateApiApiV0ComponentsComponentIdSchematicBatchArgs, options: CreateApiApiV0ComponentsComponentIdSchematicBatchOptions) => {
const {baseUrl, fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

if (args.vc_id != null) query.append("vc_id", String(args.vc_id))
if (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v0/components/${encodeURIComponent(String(args.component_id))}/schematic/batch${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(batchResponse, await res.json())
};