import {z} from 'zod'

export type SchemaAnnotationType = 'note' | 'highlight' | 'bookmark';

export type SchemaAnnotation = {book_id?: string | undefined, cfi?: string | undefined, chapter?: string | undefined, color?: string | undefined, content?: string | undefined, ctime?: number | undefined, device_id?: string | undefined, id?: number | undefined, page_number?: number | undefined, position?: string | undefined, selected_text?: string | undefined, type?: SchemaAnnotationType | undefined, user_id?: number | undefined, utime?: number | undefined};

export type CreateApiSyncAnnotationsArgs = {body: {annotations?: Array<SchemaAnnotation> | undefined, device_id?: string | undefined, last_sync_time?: number | undefined}};

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

export const schemaAnnotationType = z.enum(["note", "highlight", "bookmark"]);

export const schemaAnnotation = z.object({book_id: z.string().optional(), cfi: z.string().optional(), chapter: z.string().optional(), color: z.string().optional(), content: z.string().optional(), ctime: z.number().int().optional(), device_id: z.string().optional(), id: z.number().int().optional(), page_number: z.number().int().optional(), position: z.string().optional(), selected_text: z.string().optional(), type: schemaAnnotationType.optional(), user_id: z.number().int().optional(), utime: z.number().int().optional()});

export const createApiSyncAnnotationsResponse = z.object({data: z.object({annotations: z.array(schemaAnnotation).optional(), sync_time: z.number().int().optional(), synced: z.number().int().optional()}).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
};

/**
 * Sync annotations
 * 
 * POST /sync/annotations
 */
export const createApiSyncAnnotations = async (args: CreateApiSyncAnnotationsArgs, options: CreateApiSyncAnnotationsOptions) => {
const {baseUrl, 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", BearerAuth)

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