import {z} from 'zod'

export type GetApiEvaluationsOptions = {baseUrl?: string | undefined, Bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const model = z.object({_id: z.string(), provider: z.string(), name: z.string(), model_name: z.string()});

export const dataset = z.object({_id: z.string(), name: z.string()});

export const skill = z.object({_id: z.string(), name: z.string()});

export const evalRun = z.object({_id: z.string(), name: z.string(), date: z.string(), comment: z.string().optional(), model: model.optional(), nb_questions: z.number().int().gte(0), status: z.enum(["in progress", "terminated", "pending", "failed"]), progress: z.number().gte(0).lte(100), score: z.number().gte(0).lte(100)});

export const evaluation = z.object({_id: z.string(), updatedAt: z.string(), createdAt: z.string(), name: z.string(), comment: z.string().optional(), nb_questions: z.number().int().gte(0), score: z.number().gte(0).lte(100), progress: z.number().gte(0).lte(100), status: z.enum(["in progress", "terminated", "pending", "failed"]), model: model, dataset: dataset, skill: skill, evals: z.record(z.string(), evalRun).optional(), data_length: z.number().int().gte(0)});

export const getApiEvaluationsResponse = z.object({evaluations: z.array(evaluation).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
};

/**
 * Get all evaluations
 * 
 * GET /evaluations
 */
export const getApiEvaluations = async (options?: GetApiEvaluationsOptions) => {
const {baseUrl = "https://apis.smartly.ai", fetch: fetchFn = fetch, Bearer} = options ?? {}

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

if (Bearer !== undefined) headers.set("Authorization", Bearer)

const url = `${baseUrl.replace(/\/+$/, '')}/evaluations${query.size > 0 ? `?${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(getApiEvaluationsResponse, await res.json())
};