import {z} from 'zod'

export type FieldTypeEnum = 'checkbox' | 'collect_file' | 'date' | 'dropdown' | 'initials' | 'payment_details' | 'radio_buttons' | 'signature' | 'stamp' | 'text';

export type DocumentFieldOptionCreate = {text: string, position?: ({offset_x?: number | undefined, offset_y?: number | undefined}) | undefined};

export type DocumentFieldSettingsCreate = {required?: boolean | undefined, placeholder?: string | undefined, masked?: boolean | undefined, multiline?: boolean | undefined, show_values?: boolean | undefined, options?: Array<DocumentFieldOptionCreate> | undefined};

export type DocumentFieldAnchorPointEnum = 'topleft' | 'topright' | 'bottomleft' | 'bottomright';

export type DocumentFieldsLayout = {page: number, position: {offset_x: number, offset_y: number, anchor_point: DocumentFieldAnchorPointEnum}, style: {width: number, height: number}};

export type DocumentFieldsFieldCreate = {field_id?: string | undefined, merge_field?: string | undefined, type: FieldTypeEnum, assigned_to?: string | undefined, settings?: DocumentFieldSettingsCreate | undefined, layout: DocumentFieldsLayout};

export type CreateDocumentFieldsRequest = {fields?: Array<DocumentFieldsFieldCreate> | undefined};

export type CreateApiPublicV1DocumentsIdFieldsArgs = {id: string, body: CreateDocumentFieldsRequest};

export type CreateApiPublicV1DocumentsIdFieldsOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const fieldTypeEnum = z.enum(["checkbox", "collect_file", "date", "dropdown", "initials", "payment_details", "radio_buttons", "signature", "stamp", "text"]);

export const documentFieldAnchorPointEnum = z.enum(["topleft", "topright", "bottomleft", "bottomright"]);

export const documentFieldsLayout = z.object({page: z.number().int(), position: z.object({offset_x: z.number().gte(0), offset_y: z.number().gte(0), anchor_point: documentFieldAnchorPointEnum}), style: z.object({width: z.number().int().gte(0), height: z.number().int().gte(0)})});

export const documentFieldsField = z.object({uuid: z.string().optional(), name: z.string().optional(), title: z.string().optional(), value: z.unknown(), is_filled: z.boolean().optional(), field_id: z.string().optional(), type: fieldTypeEnum.optional(), placeholder: z.string().optional(), assigned_to: z.object({id: z.string().optional(), first_name: z.string().optional(), last_name: z.string().optional(), email: z.string().optional(), phone: z.string().optional(), recipient_type: z.string().optional(), has_completed: z.boolean().optional(), signing_order: z.unknown(), delivery_methods: z.unknown(), redirect: z.unknown(), type: z.string().optional()}).optional(), layout: documentFieldsLayout.optional(), section_uuid: z.string().optional()});

export const createDocumentFieldsResponse = z.object({fields: z.array(documentFieldsField).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
};

/**
 * Create Document Fields
 * 
 * POST /public/v1/documents/{id}/fields
 * 
 * Also accepts auth: oauth2
 */
export const createApiPublicV1DocumentsIdFields = async (args: CreateApiPublicV1DocumentsIdFieldsArgs, options?: CreateApiPublicV1DocumentsIdFieldsOptions) => {
const {baseUrl = "https://api.pandadoc.com", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (apiKey !== undefined) headers.set("Authorization", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/public/v1/documents/${encodeURIComponent(String(args.id))}/fields${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(createDocumentFieldsResponse, await res.json())
};