import {z} from 'zod'

export type RepoSelectionRequest = {repositoryId: string, baseBranch?: string | undefined};

export type CreateApiReposArgs = {body: RepoSelectionRequest};

export type CreateApiReposOptions = {baseUrl?: string | undefined, BoxBearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const selectedRepository = z.object({id: z.number().int().optional(), databaseId: z.string().optional(), name: z.string().optional(), fullName: z.string().optional(), private: z.boolean().optional(), permissions: z.string().optional(), pushedAt: z.string().nullable().optional(), baseBranch: z.string().optional(), setupRoutineId: z.string().nullable().optional(), setupScript: z.string().optional(), setupBlocking: z.boolean().optional(), preCommitHooks: z.array(z.object({id: z.string().optional(), script: z.string().optional(), blocking: z.boolean().optional()})).optional()}).and(z.record(z.string(), z.unknown()));

export const repoSelectionResponse = z.object({ok: z.boolean(), type: z.string(), success: z.boolean(), environmentId: z.string(), selectedRepositories: z.array(selectedRepository)});

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 repository for Boxes
 * 
 * POST /repos
 */
export const createApiRepos = async (args: CreateApiReposArgs, options?: CreateApiReposOptions) => {
const {baseUrl = "https://ascii.dev/api/box/v1", fetch: fetchFn = fetch, BoxBearerAuth} = options ?? {}

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

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

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