import {z} from 'zod'

export type FieldTypes = 'textarea' | 'string' | 'boolean' | 'int' | 'double' | 'datetime' | 'date' | 'list';

export type FieldDefinitionRequest = {version?: number | undefined, name: string, fieldType: FieldTypes, label?: (string | null) | undefined, required?: boolean | undefined};

export type CreateObjectTypeRequest = {version?: number | undefined, sourceId: string, name: string, displayName: string, fieldDefinitions: Array<FieldDefinitionRequest>};

export type CreateApiV1ObjectTypesArgs = {body: CreateObjectTypeRequest};

export type CreateApiV1ObjectTypesOptions = {baseUrl?: string | undefined, HTTPBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const fieldDefinitionResponse = z.object({name: z.string(), fieldType: z.string(), label: z.string().nullable().optional(), required: z.boolean()});

export const objectTypeResponse = z.object({id: z.string(), sourceId: z.string(), name: z.string(), displayName: z.string(), fieldDefinitions: z.array(fieldDefinitionResponse), createdAt: z.string(), updatedAt: z.string()});

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 Object Type
 * 
 * POST /v1/object-types
 */
export const createApiV1ObjectTypes = async (args: CreateApiV1ObjectTypesArgs, options?: CreateApiV1ObjectTypesOptions) => {
const {baseUrl = "https://api.sybill.ai", 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 (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/object-types${query.size > 0 ? `?${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(objectTypeResponse, await res.json())
};