import {z} from 'zod'

export type GetApiV1AppIdConversationsConversationIdMessagesArgs = {appId: string, conversationId: string, startingAfter?: string | undefined, limit?: number | undefined};

export type GetApiV1AppIdConversationsConversationIdMessagesOptions = {baseUrl?: string | undefined, JWTAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const message = z.object({id: z.string().optional(), type: z.enum(["UserMessage", "SystemMessage"]).optional(), origin: z.enum(["web", "rest", "email", "import"]).optional(), location: z.array(z.number()).optional(), text: z.string().nullable().optional(), custom: z.record(z.string(), z.string()).optional(), attachment: z.object({dimensions: z.object({height: z.number().int().optional(), width: z.number().int().optional()}).optional(), size: z.number().int().optional(), url: z.string().optional()}).nullable().optional(), conversationId: z.string().optional(), createdAt: z.number().nullable().optional(), senderId: z.string().nullable().optional(), editedAt: z.number().int().optional(), referencedMessageId: z.string().nullable().optional(), readBy: z.array(z.unknown()).nullable().optional()});

export const messages = z.object({data: z.array(message).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 messages in a conversation
 * 
 * GET /v1/{appId}/conversations/{conversationId}/messages
 * 
 * Also accepts auth: ApiKeyAuth
 */
export const getApiV1AppIdConversationsConversationIdMessages = async (args: GetApiV1AppIdConversationsConversationIdMessagesArgs, options?: GetApiV1AppIdConversationsConversationIdMessagesOptions) => {
const {baseUrl = "https://api.talkjs.com", fetch: fetchFn = fetch, JWTAuth} = options ?? {}

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

if (args.startingAfter != null) query.append("startingAfter", String(args.startingAfter))
if (args.limit != null) query.append("limit", String(args.limit))
if (JWTAuth !== undefined) headers.set('authorization', `Bearer ${JWTAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/${encodeURIComponent(String(args.appId))}/conversations/${encodeURIComponent(String(args.conversationId))}/messages${query.size > 0 ? `?${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(messages, await res.json())
};