import {z} from 'zod'

export type GetApiChatsArgs = {'filter[external_id]'?: string | undefined, 'filter[type]'?: ('chat' | 'email') | undefined, 'filter[title]'?: string | undefined, 'filter[participant_name]'?: string | undefined, 'filter[scorecard_id]'?: Array<string> | undefined, 'filter[user_id]'?: Array<string> | undefined, 'filter[team_id]'?: Array<string> | undefined, from_date_time?: string | undefined, to_date_time?: string | undefined, exclude_transcript?: boolean | undefined, page?: number | undefined, size?: number | undefined};

export type GetApiChatsOptions = {baseUrl?: string | undefined, APIKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const chatParticipant = z.object({externalId: z.string().optional(), name: z.string().optional(), email: z.string().optional(), participantType: z.enum(["prospect", "user", "bot"]).optional(), userUuid: z.string().optional()});

export const chatTranscriptItem = z.object({sentence: z.string().optional(), author: z.string().optional(), authorEmail: z.string().optional(), datetime: z.string().optional()});

export const chat = z.object({id: z.string().optional(), externalId: z.string().optional(), applicationName: z.string().optional(), title: z.string().optional(), type: z.enum(["chat", "email"]).optional(), userId: z.string().optional(), teamId: z.string().optional(), participants: z.array(chatParticipant).optional(), transcript: z.array(chatTranscriptItem).optional(), dateStart: z.string().optional(), createdAt: z.string().optional()});

export const meta = z.object({pageCount: z.number().int().optional(), totalRecords: z.number().int().optional(), pageNumber: z.number().int().optional(), pageSize: z.number().int().optional()});

export const listChatsResponse = z.object({data: z.array(chat).optional(), meta: meta.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 Chats
 * 
 * GET /chats
 */
export const getApiChats = async (args: GetApiChatsArgs, options?: GetApiChatsOptions) => {
const {baseUrl = "https://api.attention.tech/v2", fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

if (args['filter[external_id]'] != null) query.append("filter[external_id]", String(args['filter[external_id]']))
if (args['filter[type]'] != null) query.append("filter[type]", String(args['filter[type]']))
if (args['filter[title]'] != null) query.append("filter[title]", String(args['filter[title]']))
if (args['filter[participant_name]'] != null) query.append("filter[participant_name]", String(args['filter[participant_name]']))
if (args['filter[scorecard_id]'] != null) query.append("filter[scorecard_id]", args['filter[scorecard_id]'].join(','))
if (args['filter[user_id]'] != null) query.append("filter[user_id]", args['filter[user_id]'].join(','))
if (args['filter[team_id]'] != null) query.append("filter[team_id]", args['filter[team_id]'].join(','))
if (args.from_date_time != null) query.append("from_date_time", String(args.from_date_time))
if (args.to_date_time != null) query.append("to_date_time", String(args.to_date_time))
if (args.exclude_transcript != null) query.append("exclude_transcript", String(args.exclude_transcript))
if (args.page != null) query.append("page", String(args.page))
if (args.size != null) query.append("size", String(args.size))
if (APIKeyHeader !== undefined) headers.set("Authorization", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/chats${query.size > 0 ? `?${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(listChatsResponse, await res.json())
};