import {z} from 'zod'

export type CustomUiNavItem = {label?: string | undefined, url?: string | undefined};

export type CustomUiUpdateRequest = {banner_url?: (string | null) | undefined, banner_style?: (string | null) | undefined, banner_title?: (string | null) | undefined, banner_subtext?: (string | null) | undefined, banner_title_color?: (string | null) | undefined, banner_bg_color?: (string | null) | undefined, header_nav_items?: (Array<CustomUiNavItem> | null) | undefined, footer_text?: (string | null) | undefined};

export type PatchApiBlogsCustomUiArgs = {body: CustomUiUpdateRequest};

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

export const customUiNavItem = z.object({label: z.string().optional(), url: z.string().optional()});

export const customUiResponse = z.object({banner_url: z.string().nullable().optional(), banner_style: z.string().nullable().optional(), banner_title: z.string().nullable().optional(), banner_subtext: z.string().nullable().optional(), banner_title_color: z.string().nullable().optional(), banner_bg_color: z.string().nullable().optional(), header_nav_items: z.array(customUiNavItem).nullable().optional(), footer_text: z.string().nullable().optional()});

export const customUiEnvelopeResponse = z.object({data: customUiResponse.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
};

/**
 * Update Banner & UI Settings
 * 
 * PATCH /blogs/custom-ui
 */
export const patchApiBlogsCustomUi = async (args: PatchApiBlogsCustomUiArgs, options?: PatchApiBlogsCustomUiOptions) => {
const {baseUrl = "https://inblog.ai/api/v1", 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 = `${baseUrl.replace(/\/+$/, '')}/blogs/custom-ui${query.size > 0 ? `?${query}` : ''}`

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