import {z} from 'zod'

export type GetApiV1TemplateTemplateSlugChannelChannelSlugArgs = {template_slug: string, channel_slug: string};

export type GetApiV1TemplateTemplateSlugChannelChannelSlugOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiV1TemplateTemplateSlugChannelChannelSlugResponse = z.object({id: z.number().int().optional(), channel: z.object({name: z.string().optional(), slug: z.string().optional(), is_template_approval_needed: z.boolean().optional()}).optional(), is_active: z.boolean().optional(), is_enabled: z.boolean().optional(), created_at: z.string().optional(), updated_at: z.string().optional(), disabled_languages: z.array(z.string()).optional(), versions: z.array(z.object({id: z.number().int().optional(), templates: z.array(z.object({id: z.number().int().optional(), language: z.object({name: z.string().optional(), slug: z.string().optional()}).optional(), is_enabled: z.boolean().optional(), approval_status: z.string().optional(), content: z.object({}).optional(), created_at: z.string().optional(), updated_at: z.string().optional(), updated_by: z.object({name: z.string().optional(), email: z.string().optional()}).optional(), approval_cycle: z.string().nullable().optional(), is_approval_needed: z.boolean().optional(), is_cloned_from_last_version: z.boolean().optional()})).optional(), status: z.string().optional(), version_tag: z.string().optional(), created_at: z.string().optional(), updated_at: z.string().optional(), updated_by: z.object({}).optional(), version_tag_user: z.string().optional(), published_languages: z.array(z.string()).optional(), apparent_published_languages: z.array(z.string()).optional(), system_approval_info: z.object({}).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
};

/**
 * Fetch Template content for a channel
 * 
 * GET /v1/template/{template_slug}/channel/{channel_slug}/
 */
export const getApiV1TemplateTemplateSlugChannelChannelSlug = async (args: GetApiV1TemplateTemplateSlugChannelChannelSlugArgs, options?: GetApiV1TemplateTemplateSlugChannelChannelSlugOptions) => {
const {baseUrl = "https://hub.suprsend.com", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/template/${encodeURIComponent(String(args.template_slug))}/channel/${encodeURIComponent(String(args.channel_slug))}/${query.size > 0 ? `?${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(getApiV1TemplateTemplateSlugChannelChannelSlugResponse, await res.json())
};