import {z} from 'zod'

export type GetApiCiOwnerRepositoriesRepositoryTestSelectionFailureFirstArgs = {repository: string, owner: string};

export type GetApiCiOwnerRepositoriesRepositoryTestSelectionFailureFirstOptions = {baseUrl: string, AdminApplicationKey?: string | undefined, fetch?: typeof fetch | undefined};

export const failureFirstStatus = z.object({state: z.enum(["not_served", "active"]), since: z.string(), steps: z.number().int(), stopped_early_steps: z.number().int(), estimated_test_time_saved_ms: z.number().int(), unmeasured_stopped_early_jobs: z.number().int()});

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 what Fail First did on a repository
 * 
 * GET /ci/{owner}/repositories/{repository}/test-selection/failure-first
 * 
 * Also accepts auth: MergifyTokenBearerAuth, GitHubTokenBearerAuth
 */
export const getApiCiOwnerRepositoriesRepositoryTestSelectionFailureFirst = async (args: GetApiCiOwnerRepositoriesRepositoryTestSelectionFailureFirstArgs, options: GetApiCiOwnerRepositoriesRepositoryTestSelectionFailureFirstOptions) => {
const {baseUrl, fetch: fetchFn = fetch, AdminApplicationKey} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/ci/${encodeURIComponent(String(args.owner))}/repositories/${encodeURIComponent(String(args.repository))}/test-selection/failure-first${query.size > 0 ? `?${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(failureFirstStatus, await res.json())
};