import {z} from 'zod'

export type IssueState = 'open' | 'closed';

export type GetApiApiV0MilestonesArgs = {organization?: (string | null) | undefined, repository?: (string | null) | undefined, state?: (IssueState | null) | undefined, ordering?: ('created_at' | '-created_at' | 'updated_at' | '-updated_at' | null) | undefined, page?: number | undefined, page_size?: number | undefined};

export type GetApiApiV0MilestonesOptions = {baseUrl?: string | undefined, ApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const issueState = z.enum(["open", "closed"]);

export const milestone = z.object({created_at: z.string(), number: z.number().int(), state: issueState, title: z.string(), updated_at: z.string(), url: z.string()});

export const pagedMilestone = z.object({current_page: z.number().int(), has_next: z.boolean(), has_previous: z.boolean(), items: z.array(milestone), total_count: z.number().int(), total_pages: 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
};

/**
 * List milestones
 * 
 * GET /api/v0/milestones/
 */
export const getApiApiV0Milestones = async (args: GetApiApiV0MilestonesArgs, options?: GetApiApiV0MilestonesOptions) => {
const {baseUrl = "https://nest.owasp.org", fetch: fetchFn = fetch, ApiKey} = options ?? {}

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

if (args.organization != null) query.append("organization", String(args.organization))
if (args.repository != null) query.append("repository", String(args.repository))
if (args.state != null) query.append("state", String(args.state))
if (args.ordering != null) query.append("ordering", String(args.ordering))
if (args.page != null) query.append("page", String(args.page))
if (args.page_size != null) query.append("page_size", String(args.page_size))
if (ApiKey !== undefined) headers.set("X-API-Key", ApiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v0/milestones/${query.size > 0 ? `?${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(pagedMilestone, await res.json())
};