import {z} from 'zod'

export type GetApiV1ExternalMessagesHistoryBotIdArgs = {botId: string, limit?: number | undefined, page?: number | undefined, startAt?: string | undefined, endAt?: string | undefined, clientId?: string | undefined, messageId?: string | undefined};

export type GetApiV1ExternalMessagesHistoryBotIdOptions = {baseUrl?: string | undefined, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const pagination = z.object({limit: z.number().int().optional(), page: z.number().int().optional(), total: z.number().int().optional(), offset: z.number().int().optional(), totalPages: z.number().int().optional()});

export const chatMessage = z.object({recipient: z.object({id: z.string().optional(), names: z.string().optional()}).optional(), sender: z.object({id: z.string().optional(), name: z.string().optional(), type: z.string().optional()}).optional(), by: z.enum(["bot", "user"]).optional(), messageId: z.string().optional(), status: z.string().optional(), bubble: z.object({type: z.string().optional(), text: z.string().optional(), mediaUrl: z.string().optional()}).optional(), createdAt: z.string().optional()});

export const chatHistoryResponse = z.object({pagination: pagination.optional(), _metadata: z.object({}).optional(), results: z.array(chatMessage).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
};

/**
 * Get Chat History
 * 
 * GET /v1/external/messages/history/{botId}
 */
export const getApiV1ExternalMessagesHistoryBotId = async (args: GetApiV1ExternalMessagesHistoryBotIdArgs, options?: GetApiV1ExternalMessagesHistoryBotIdOptions) => {
const {baseUrl = "https://api.jelou.ai", fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.page != null) query.append("page", String(args.page))
if (args.startAt != null) query.append("startAt", String(args.startAt))
if (args.endAt != null) query.append("endAt", String(args.endAt))
if (args.clientId != null) query.append("clientId", String(args.clientId))
if (args.messageId != null) query.append("messageId", String(args.messageId))
if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/external/messages/history/${encodeURIComponent(String(args.botId))}${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(chatHistoryResponse, await res.json())
};