import {z} from 'zod'

export type ConversationInputField = {input_name: string, input_type: string, input_label: string, input_placeholder: string, is_mandatory: boolean, input_value?: string | undefined};

export type CreateApiConversationsArgs = {team_id?: string | undefined, kb_id?: string | undefined, name?: string | undefined, body: Array<ConversationInputField>};

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

export const conversationInputField = z.object({input_name: z.string(), input_type: z.string(), input_label: z.string(), input_placeholder: z.string(), is_mandatory: z.boolean(), input_value: z.string().optional()});

export const modelType = z.enum(["gpt-4.1", "gpt-4.1-mini", "gpt-4.1-nano", "gpt-4-omnimodel-mini", "gpt-4-omnimodel", "gpt-4-omnimodel-128k", "gpt-4-turbo", "gpt-4-turbo-128k", "gpt-4", "gpt-4-32k", "gpt-3.5-turbo", "gpt-3.5-turbo-1106", "gpt-3.5-turbo-16k", "falcon", "mistral", "wizardlm", "gemma", "llama2", "llama3", "llama3_8b", "cohere", "claude_3_opus_9k", "claude_3_opus_32k", "claude_3_opus_128k", "claude_3_opus_200k", "claude_3_sonnet", "claude_3_dot_5_sonnet", "claude_3_haiku", "claude_3_dot_7_sonnet", "claude_4_opus", "claude_4_sonnet", "gemini-2.0-flash", "gemini-2.5-flash", "gemini-2.0-flash-lite", "gpt-5", "gpt-5-mini", "gpt-5-nano", "claude_4_dot_5_sonnet", "claude_4_dot_1_opus", "claude_4_dot_5_haiku", "gemini-2.5-pro", "gemini-2.5-flash-lite", "gpt-5.1", "gemini-3-pro", "gpt-5.2", "gpt-5.4", "gemini-3-flash", "claude_4_dot_6_opus", "claude_4_6_sonnet", "gpt-5.4-mini", "gpt-5.4-nano", "gpt-5.5", "gpt-5.6-sol", "gpt-5.6-terra", "gpt-5.6-luna", "claude_4_7_opus", "claude_4_8_opus", "claude_5_opus", "claude_5_sonnet"]);

export const conversation = z.object({id: z.string().optional(), date_created: z.string().optional(), date_updated: z.string().optional(), kb_id: z.string().optional(), name: z.string().optional(), form_data: z.array(conversationInputField).optional(), user_id: z.string(), has_not_answered_questions: z.boolean().optional(), agent_responding: z.boolean().optional(), last_model_used: modelType.optional(), intercom_id: z.string().optional(), team_id: z.string().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
};

/**
 * Create Conversation
 * 
 * POST /conversations
 * 
 * Also accepts auth: OAuth2PasswordBearer
 */
export const createApiConversations = async (args: CreateApiConversationsArgs, options: CreateApiConversationsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

if (args.team_id != null) query.append("team_id", String(args.team_id))
if (args.kb_id != null) query.append("kb_id", String(args.kb_id))
if (args.name != null) query.append("name", String(args.name))
if (APIKeyHeader !== undefined) headers.set("x-api-key", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/conversations${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(conversation, await res.json())
};