import {z} from 'zod'

export type ModelType = '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 type IntegrationMode = 'TEXT' | 'AVATAR';

export type CreateApiModelQueryStreamArgs = {team_id?: string | undefined, model_type?: ModelType | undefined, integration_mode?: IntegrationMode | undefined, avatar_id?: string | undefined, question: string, conversation_id: string, user_generated_id?: string | undefined};

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

export const createApiModelQueryStreamResponse = z.unknown();

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
};

/**
 * Make Query Stream
 * 
 * POST /model/query-stream
 * 
 * Also accepts auth: OAuth2PasswordBearer
 */
export const createApiModelQueryStream = async (args: CreateApiModelQueryStreamArgs, options: CreateApiModelQueryStreamOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

if (args.team_id != null) query.append("team_id", String(args.team_id))
if (args.model_type != null) query.append("model_type", String(args.model_type))
if (args.integration_mode != null) query.append("integration_mode", String(args.integration_mode))
if (args.avatar_id != null) query.append("avatar_id", String(args.avatar_id))
if (args.question != null) query.append("question", String(args.question))
if (args.conversation_id != null) query.append("conversation_id", String(args.conversation_id))
if (args.user_generated_id != null) query.append("user_generated_id", String(args.user_generated_id))
if (APIKeyHeader !== undefined) headers.set("x-api-key", APIKeyHeader)

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

const res = await fetchFn(url, {method: "POST", headers})

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

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