import {z} from 'zod'

export type GetApiV3PortalsEmailTemplatesOptions = {baseUrl?: string | undefined, personalAccessToken?: string | undefined, fetch?: typeof fetch | undefined};

export const defaultEmailTemplateContent = z.object({subject: z.string(), title: z.string(), body: z.string(), button_label: z.string().optional()});

export const emailTemplateVariableName = z.enum(["portal_display_name", "portal_domain", "developer_email", "developer_fullname", "dev_portal_reply_to", "developer_status", "api_documentation_url", "api_name", "api_version", "application_name", "credential_name", "credential_expires_at"]);

export const emailTemplateName = z.enum(["confirm-email-address", "app-registration-approved", "app-registration-rejected", "app-registration-revoked", "reset-password", "account-access-approved", "account-access-rejected", "account-access-revoked", "api-key-expiring-soon", "api-key-expired", "developer-invitation"]);

export const defaultEmailTemplate = z.object({default_content: defaultEmailTemplateContent, variables: z.array(emailTemplateVariableName), name: emailTemplateName, label: z.string()});

export const getApiV3PortalsEmailTemplatesResponse = z.object({data: z.array(defaultEmailTemplate).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
};

/**
 * List default email templates
 * 
 * GET /v3/portals/email-templates
 * 
 * Also accepts auth: systemAccountAccessToken, konnectAccessToken, serviceAccessToken
 */
export const getApiV3PortalsEmailTemplates = async (options?: GetApiV3PortalsEmailTemplatesOptions) => {
const {baseUrl = "https://global.api.konghq.com", fetch: fetchFn = fetch, personalAccessToken} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/v3/portals/email-templates${query.size > 0 ? `?${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(getApiV3PortalsEmailTemplatesResponse, await res.json())
};