import {z} from 'zod'

export type GetApiV1AiModerationSettingsOptions = {baseUrl?: string | undefined, apiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const aIRecommendation = z.enum(["NO_ACTION", "REVIEW_REQUIRED", "DELETE_CONTENT", "BAN_USER", "DELETE_AND_BAN"]);

export const aIModerationMode = z.enum(["DISABLED", "ADVISORY"]);

export const aIModerationSettingsResponseDto = z.object({enabled: z.boolean(), escalationConfidenceThreshold: z.number().gte(0).lte(1), escalationRecommendations: z.array(aIRecommendation), frameInterval: z.number(), maxFrames: z.number(), mode: aIModerationMode, provider: z.string(), quickScanFrames: z.number(), quickScanWidth: z.number(), tieredAnalysisEnabled: z.boolean()});

export const getAIModerationSettingsResponseDto = z.object({settings: aIModerationSettingsResponseDto});

export const getApiV1AiModerationSettingsResponse = z.object({error: z.literal(false), message: z.string(), status: z.number(), data: getAIModerationSettingsResponseDto});

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 AI moderation settings
 * 
 * GET /v1/ai-moderation/settings
 * 
 * Also accepts auth: bearer
 */
export const getApiV1AiModerationSettings = async (options?: GetApiV1AiModerationSettingsOptions) => {
const {baseUrl = "https://lpad-backend.stage.defi.ovh.gala.com", fetch: fetchFn = fetch, apiKeyAuth} = options ?? {}

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

if (apiKeyAuth !== undefined) headers.set("x-api-key", apiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/ai-moderation/settings${query.size > 0 ? `?${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(getApiV1AiModerationSettingsResponse, await res.json())
};