import {z} from 'zod'

export type GetApiV2FeatureCapabilitiesArgs = {Authorization?: string | undefined};

export type GetApiV2FeatureCapabilitiesOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const bluenteInternalCourseV2ServiceFeatureConflictResult = z.object({feature_key: z.string().optional(), reason: z.string().optional()});

export const bluenteInternalCourseV2ModelFeatureAccessOption = z.object({icon: z.string().optional(), label: z.string().optional(), value: z.unknown()});

export const bluenteInternalCourseV2ModelFeatureAccessValueType = z.enum(["string", "int", "float", "bool", "array", "object"]);

export const bluenteInternalCourseV2ModelFeatureAccessExtraConfig = z.object({config_value: z.unknown(), default_value: z.unknown(), description: z.string().optional(), max: z.number().optional(), min: z.number().optional(), options: z.array(bluenteInternalCourseV2ModelFeatureAccessOption).optional(), value_type: bluenteInternalCourseV2ModelFeatureAccessValueType.optional()});

export const bluenteInternalCourseV2ServiceTranslationFeatureCapability = z.object({active: z.boolean().optional(), applicable_document_modes: z.array(z.string()).optional(), applicable_file_types: z.array(z.string()).optional(), conflicts_with: z.array(bluenteInternalCourseV2ServiceFeatureConflictResult).optional(), description: z.string().optional(), display_name: z.string().optional(), enabled: z.boolean().optional(), extra_config: bluenteInternalCourseV2ModelFeatureAccessExtraConfig.optional(), feature_key: z.string().optional(), grantable: z.boolean().optional(), selection_group: z.string().optional(), selection_type: z.string().optional(), sort_order: z.number().int().optional(), source: z.string().optional()});

export const getApiV2FeatureCapabilitiesResponse = z.object({code: z.number().int().optional(), data: z.object({features: z.array(bluenteInternalCourseV2ServiceTranslationFeatureCapability).optional(), policy_version: z.string().optional()}).optional(), message: z.string().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
};

/**
 * 获取翻译功能权限和选择规则
 * 
 * GET /v2/feature/capabilities
 */
export const getApiV2FeatureCapabilities = async (args: GetApiV2FeatureCapabilitiesArgs, options: GetApiV2FeatureCapabilitiesOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.Authorization != null) headers.set("Authorization", String(args.Authorization))

const url = `${baseUrl.replace(/\/+$/, '')}/v2/feature/capabilities${query.size > 0 ? `?${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(getApiV2FeatureCapabilitiesResponse, await res.json())
};