import {z} from 'zod'

export type GetApiApiV2TemplatesSearchArgs = {page?: number | undefined, limit?: number | undefined, ids?: string | undefined, name?: string | undefined, content?: string | undefined};

export type GetApiApiV2TemplatesSearchOptions = {baseUrl?: string | undefined, BasicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const messageTemplate = z.object({id: z.number().int(), name: z.string(), content: z.string(), lastModified: z.string().nullable()});

export const searchTemplatesPaginatedResponse = z.object({page: z.number().int(), pageCount: z.number().int(), limit: z.number().int(), resources: z.array(messageTemplate)});

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
};

/**
 * Find templates by criteria
 * 
 * GET /api/v2/templates/search
 */
export const getApiApiV2TemplatesSearch = async (args: GetApiApiV2TemplatesSearchArgs, options?: GetApiApiV2TemplatesSearchOptions) => {
const {baseUrl = "https://rest.textmagic.com", fetch: fetchFn = fetch, BasicAuth} = options ?? {}

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

if (args.page != null) query.append("page", String(args.page))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.ids != null) query.append("ids", String(args.ids))
if (args.name != null) query.append("name", String(args.name))
if (args.content != null) query.append("content", String(args.content))
if (BasicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${BasicAuth.username}:${BasicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v2/templates/search${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(searchTemplatesPaginatedResponse, await res.json())
};