import {z} from 'zod'

export type Message = {id: string, conversation_id: string, sender_id: string, sender_role: 'ConstructionManager' | 'TradePartner', recipient_ids: Array<string>, trade_names?: Array<string> | undefined, date: string, body: string, images?: Array<string> | undefined};

export type AdditionalContextImage = {image_url: string, description?: string | undefined};

export type AdditionalContext = {images?: Array<AdditionalContextImage> | undefined} | {[key: string]: unknown};

export type PredictionRequest = {messages: Array<Message>, additional_context?: AdditionalContext | undefined};

export type CreateApiV1LennarMessagesPredictArgs = {body: PredictionRequest};

export type CreateApiV1LennarMessagesPredictOptions = {baseUrl?: string | undefined, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const predictionGeneratedMessage = z.object({reasoning: z.string(), short_reasoning: z.string(), text: z.string(), confidence: z.enum(["high", "medium", "low"])});

export const predictionBoundingBox = z.object({x1: z.number(), y1: z.number(), x2: z.number(), y2: z.number()});

export const predictionAnnotation = z.object({title: z.string(), description: z.string(), confidence: z.enum(["high", "medium", "low"]), bounding_box: predictionBoundingBox});

export const predictionAnnotatedImage = z.object({image_url: z.string(), annotations: z.array(predictionAnnotation).optional()});

export const prediction = z.object({generated_messages: z.array(predictionGeneratedMessage), annotated_images: z.array(predictionAnnotatedImage)});

export const predictionResponse = z.object({prediction: prediction});

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
};

/**
 * Predict Messages
 * 
 * POST /v1/lennar/messages/predict
 */
export const createApiV1LennarMessagesPredict = async (args: CreateApiV1LennarMessagesPredictArgs, options?: CreateApiV1LennarMessagesPredictOptions) => {
const {baseUrl = "https://api.navigateai.co", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (ApiKeyAuth !== undefined) headers.set('authorization', `Bearer ${ApiKeyAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/lennar/messages/predict${query.size > 0 ? `?${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(predictionResponse, await res.json())
};