import {z} from 'zod'

export type GetApiApiV4MessagingConversationsArgs = {limit?: number | undefined, offset?: number | undefined};

export type GetApiApiV4MessagingConversationsOptions = {baseUrl: string, StaticKey?: string | undefined, fetch?: typeof fetch | undefined};

export const channelProfileShort = z.object({id: z.number().int().optional(), channel: z.enum(["chat", "facebook", "instagram", "telegram", "viber", "whatsapp"]).optional(), identifier: z.string().nullable().optional(), name: z.string().optional()});

export const channelAccount = z.object({id: z.string().optional(), channel: z.enum(["chat", "facebook", "instagram", "telegram", "viber", "whatsapp"]).optional(), identifier: z.string().optional(), data: z.object({name: z.string().nullable(), username: z.string().nullable().optional()}).optional()});

export const userShort = z.object({id: z.number().int().optional(), name: z.string().optional(), email: z.string().optional()});

export const flowShort = z.object({id: z.string().optional(), name: z.string().optional()});

export const queueShort = z.object({id: z.number().int().optional(), name: z.string().optional()});

export const conversation = z.object({id: z.string().optional(), channel_profile: channelProfileShort.nullable().optional(), contact_channel_account: channelAccount.optional(), user: userShort.nullable().optional(), flow: flowShort.nullable().optional(), queue: queueShort.nullable().optional(), status: z.enum(["initial", "active", "archived", "business_initiated", "business_initiated_waiting", "contact_disconnected", "dropped", "flow_ai_waiting", "flow_controlled", "flow_initiated", "flow_initiated_waiting", "flow_waiting", "force_closed", "forwarding", "rejected", "ringing", "system_initiated_waiting", "terminated", "waiting", "window_waiting"]).optional(), created_at: z.string().optional(), updated_at: z.string().optional()});

export const metadata = z.object({total: z.number().int().optional(), next_cursor: z.string().nullable().optional()});

export const getApiApiV4MessagingConversationsResponse = z.object({conversations: z.array(conversation).optional(), metadata: metadata.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 list of conversations
 * 
 * GET /api/v4/messaging/conversations
 */
export const getApiApiV4MessagingConversations = async (args: GetApiApiV4MessagingConversationsArgs, options: GetApiApiV4MessagingConversationsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, StaticKey} = 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.offset != null) query.append("offset", String(args.offset))
if (StaticKey !== undefined) headers.set('authorization', `Bearer ${StaticKey}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v4/messaging/conversations${query.size > 0 ? `?${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(getApiApiV4MessagingConversationsResponse, await res.json())
};