import {z} from 'zod'

export type ChampionRequest = {training_job_id?: (string | null) | undefined, base_model?: (string | null) | undefined, reason?: (string | null) | undefined};

export type CreateApiV1ProjectsProjectIdVersionsVersionIdChampionArgs = {project_id: string, version_id: string, body: ChampionRequest};

export type CreateApiV1ProjectsProjectIdVersionsVersionIdChampionOptions = {baseUrl: string, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const projectVersionStatus = z.enum(["current", "frozen", "abandoned"]);

export const championRef = z.object({training_job_id: z.string().nullable().optional(), base_model: z.string().nullable().optional()});

export const projectVersionResponse = z.object({id: z.string(), project_id: z.string(), team_id: z.string(), version_number: z.number().int(), status: projectVersionStatus, objective: z.string().nullable(), carryover_summary: z.string(), champion: championRef.nullable(), created_by: z.string(), closed_by: z.string().nullable(), closed_at: z.string().nullable(), created_at: z.string()});

export const championResponse = z.object({version: projectVersionResponse, deployment_id: z.string(), active_model_id: z.string()});

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
};

/**
 * Select a milestone version's champion model
 * 
 * POST /v1/projects/{project_id}/versions/{version_id}/champion
 * 
 * Also accepts auth: BearerAuth
 */
export const createApiV1ProjectsProjectIdVersionsVersionIdChampion = async (args: CreateApiV1ProjectsProjectIdVersionsVersionIdChampionArgs, options: CreateApiV1ProjectsProjectIdVersionsVersionIdChampionOptions) => {
const {baseUrl, 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("X-API-Key", ApiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/projects/${encodeURIComponent(String(args.project_id))}/versions/${encodeURIComponent(String(args.version_id))}/champion${query.size > 0 ? `?${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(championResponse, await res.json())
};