import {z} from 'zod'

export type GetApiMessagesMessageIdArgs = {message_id: number, cookie_name?: (string | null) | undefined};

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

export const toolCallProgressStepOut = z.object({name: z.string(), message: z.string(), step_index: z.number().int()});

export const toolCallOut = z.object({id: z.number().int(), call_id: z.string(), tool_name: z.string(), call_group: z.number().int(), call_index: z.number().int(), state: z.string().nullable(), is_error: z.boolean().nullable(), description: z.string().nullable(), progress_steps: z.array(toolCallProgressStepOut)});

export const messageFileOut = z.object({id: z.number().int(), filename: z.string(), content_type: z.string().nullable()});

export const messageDetailOut = z.object({id: z.number().int(), chat_id: z.number().int(), parent_id: z.number().int().nullable(), role: z.string(), content: z.string(), state: z.string().nullable(), error: z.string().nullable(), hint: z.string().nullable(), created_at: z.string(), updated_at: z.string(), usage: z.record(z.string(), z.unknown()).nullable(), tool_calls: z.array(toolCallOut), files: z.array(messageFileOut)});

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 a message
 * 
 * GET /messages/{message_id}
 */
export const getApiMessagesMessageId = async (args: GetApiMessagesMessageIdArgs, options?: GetApiMessagesMessageIdOptions) => {
const {baseUrl = "https://api.your-domain.com", fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

if (args.cookie_name != null) query.append("cookie_name", String(args.cookie_name))
if (APIKeyHeader !== undefined) headers.set("X-API-KEY", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/messages/${encodeURIComponent(String(args.message_id))}${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(messageDetailOut, await res.json())
};