import {z} from 'zod'

export type GetApiApiOrgIdRePatternsBuiltInArgs = {org_id: string, search?: string | undefined, tags?: Array<string> | undefined};

export type GetApiApiOrgIdRePatternsBuiltInOptions = {baseUrl: string, Authorization?: string | undefined, fetch?: typeof fetch | undefined};

export const patternExamples = z.object({Invalid: z.array(z.string()).optional(), Valid: z.array(z.string()).optional()});

export const builtInPatternResponse = z.object({description: z.string(), examples: patternExamples, name: z.string(), pattern: z.string(), rarity: z.number(), tags: z.array(z.string()), url: z.string().nullable().optional()});

export const builtInPatternsResponse = z.object({last_updated: z.number().int(), patterns: z.array(builtInPatternResponse), source_url: 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
};

/**
 * Get built-in regex patterns from GitHub
 * 
 * GET /api/{org_id}/re_patterns/built-in
 */
export const getApiApiOrgIdRePatternsBuiltIn = async (args: GetApiApiOrgIdRePatternsBuiltInArgs, options: GetApiApiOrgIdRePatternsBuiltInOptions) => {
const {baseUrl, fetch: fetchFn = fetch, Authorization} = options ?? {}

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

if (args.search != null) query.append("search", String(args.search))
for (const item of args.tags ?? []) query.append("tags", String(item))
if (Authorization !== undefined) headers.set("Authorization", Authorization)

const url = `${baseUrl.replace(/\/+$/, '')}/api/${encodeURIComponent(String(args.org_id))}/re_patterns/built-in${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(builtInPatternsResponse, await res.json())
};