import {z} from 'zod'

export type SortMetric = 'SORT_METRIC_UNSPECIFIED' | 'SORT_METRIC_PRICE' | 'SORT_METRIC_LATENCY' | 'SORT_METRIC_THROUGHPUT' | 'SORT_METRIC_INTELLIGENCE' | 'SORT_METRIC_MATH' | 'SORT_METRIC_CODING';

export type SortDirection = 'SORT_DIRECTION_UNSPECIFIED' | 'SORT_DIRECTION_ASCENDING' | 'SORT_DIRECTION_DESCENDING';

export type SortCriteria = {metric: SortMetric, direction?: SortDirection | undefined};

export type ProviderConfig = {order?: Array<string> | undefined, allow_fallbacks?: boolean | undefined};

export type ModelSelection = {models?: Array<string> | undefined, sort?: Array<SortCriteria> | undefined, ignore?: Array<string> | undefined, provider?: ProviderConfig | undefined};

export type LogitBias = {token_id: string, bias_value: number};

export type ReasoningConfig = {effort?: ('unspecified' | 'none' | 'minimal' | 'low' | 'medium' | 'high' | 'xhigh') | undefined, max_tokens?: number | undefined, exclude?: boolean | undefined};

export type TextGenerationConfig = {max_tokens?: number | undefined, top_p?: number | undefined, temperature?: number | undefined, repetition_penalty?: number | undefined, frequency_penalty?: number | undefined, presence_penalty?: number | undefined, stop_sequences?: Array<string> | undefined, seed?: number | undefined, logit_bias?: Array<LogitBias> | undefined, reasoning?: ReasoningConfig | undefined};

export type ImageUrl = {url: string, detail?: ('auto' | 'low' | 'high') | undefined};

export type ContentItem = {text: string} | {image: ImageUrl};

export type ToolCall = {id: string, type: 'function', function: {name: string, arguments: string}};

export type MessageTemplate = {role: string, content?: string | undefined, content_items?: Array<ContentItem> | undefined, tool_calls?: Array<ToolCall> | undefined, tool_call_id?: string | undefined};

export type WebSearchConfig = {engine?: ('exa' | 'google') | undefined, max_results?: number | undefined, max_steps?: number | undefined};

export type Variant = {variant_id: string, model_id?: string | undefined, model_selection?: ModelSelection | undefined, text_generation_config?: TextGenerationConfig | undefined, message_templates?: Array<MessageTemplate> | undefined, web_search?: WebSearchConfig | undefined};

export type WeightedVariant = {variant: Variant, weight: number};

export type Route = {route_id: string, variants: Array<WeightedVariant>};

export type Condition = {cel_expression: string};

export type ConditionalRoute = {route: Route, condition: Condition};

export type RouterDefaults = {message_templates?: Array<MessageTemplate> | undefined, text_generation_config?: TextGenerationConfig | undefined};

export type Router = {name: string, displayName?: string | undefined, routes?: Array<ConditionalRoute> | undefined, defaultRoute?: Route | undefined, defaults?: RouterDefaults | undefined};

export type PatchApiRouterV1RoutersRouterIdArgs = {router_id: string, update_mask?: string | undefined, body: Router};

export type PatchApiRouterV1RoutersRouterIdOptions = {baseUrl?: string | undefined, inworldBasic?: string | undefined, fetch?: typeof fetch | undefined};

export const longrunningOperation = z.object({name: z.string().optional(), metadata: z.object({"@type": z.string().optional()}).and(z.record(z.string(), z.unknown())).optional(), done: z.boolean().optional(), error: z.object({code: z.number().int().optional(), message: z.string().optional(), details: z.array(z.object({})).optional()}).optional(), response: z.record(z.string(), z.unknown()).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
};

/**
 * Update router
 * 
 * PATCH /router/v1/routers/{router_id}
 */
export const patchApiRouterV1RoutersRouterId = async (args: PatchApiRouterV1RoutersRouterIdArgs, options?: PatchApiRouterV1RoutersRouterIdOptions) => {
const {baseUrl = "https://api.inworld.ai", fetch: fetchFn = fetch, inworldBasic} = options ?? {}

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

if (args.update_mask != null) query.append("update_mask", String(args.update_mask))
if (inworldBasic !== undefined) headers.set("Authorization", inworldBasic)

const url = `${baseUrl.replace(/\/+$/, '')}/router/v1/routers/${encodeURIComponent(String(args.router_id))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "PATCH", 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(longrunningOperation, await res.json())
};