import {z} from 'zod'

export type GetApiV1PluginsArgs = {page?: number | undefined, pageSize?: number | undefined, q?: string | undefined, category?: string | undefined, partnerId?: string | undefined};

export type GetApiV1PluginsOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const pluginPublicDto = z.object({id: z.string(), packageName: z.string(), slug: z.string(), name: z.string(), description: z.string().nullable(), registry: z.string(), repositoryUrl: z.string().nullable(), iconUrl: z.string().nullable(), downloadCount: z.number(), latestVersion: z.string().nullable(), lastPublish: z.string().nullable(), compatibility: z.string().nullable(), readme: z.string().nullable(), changelog: z.string().nullable(), docs: z.string().nullable(), metadataVersion: z.string().nullable(), partnerId: z.string().nullable(), categories: z.array(z.string()), createdAt: z.string()});

export const pagedPluginPublicDto = z.object({items: z.array(pluginPublicDto), total: z.number(), page: z.number(), pageSize: z.number()});

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 APPROVED plugins with optional q / category / partner filters
 * 
 * GET /v1/plugins
 */
export const getApiV1Plugins = async (args: GetApiV1PluginsArgs, options: GetApiV1PluginsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.page != null) query.append("page", String(args.page))
if (args.pageSize != null) query.append("pageSize", String(args.pageSize))
if (args.q != null) query.append("q", String(args.q))
if (args.category != null) query.append("category", String(args.category))
if (args.partnerId != null) query.append("partnerId", String(args.partnerId))

const url = `${baseUrl.replace(/\/+$/, '')}/v1/plugins${query.size > 0 ? `?${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(pagedPluginPublicDto, await res.json())
};