import {z} from 'zod'

export type VcsProvider = 'github';

export type GetApiAlphaReposProviderOrgRepoSessionsSessionIdPatchArgs = {provider: VcsProvider, org: string, repo: string, sessionId: string, contextLines?: number | undefined, interhunkLines?: number | undefined};

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

export const patchSet = z.string();

export const sessionPatchResponse = z.object({patchSet: patchSet.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 /alpha/repos/{provider}/{org}/{repo}/sessions/{sessionId}/patch
 */
export const getApiAlphaReposProviderOrgRepoSessionsSessionIdPatch = async (args: GetApiAlphaReposProviderOrgRepoSessionsSessionIdPatchArgs, options?: GetApiAlphaReposProviderOrgRepoSessionsSessionIdPatchOptions) => {
const {baseUrl = "https://api.solverai.com", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (args.contextLines != null) query.append("contextLines", String(args.contextLines))
if (args.interhunkLines != null) query.append("interhunkLines", String(args.interhunkLines))
if (ApiKeyAuth !== undefined) headers.set("Authorization", ApiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/alpha/repos/${encodeURIComponent(String(args.provider))}/${encodeURIComponent(String(args.org))}/${encodeURIComponent(String(args.repo))}/sessions/${encodeURIComponent(String(args.sessionId))}/patch${query.size > 0 ? `?${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(sessionPatchResponse, await res.json())
};