import {z} from 'zod'

export type GetApiAiProvidersArgs = {limit?: number | undefined, offset?: number | undefined};

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

export const aiProviderEnterpriseConfigurationActionRule = z.object({action: z.enum(["pre_translate", "alignment", "qa_check"]).optional(), availableAiModelIds: z.array(z.string()).optional()});

export const enterpriseAiProvider = z.object({id: z.number().int().optional(), name: z.string().optional(), type: z.string().optional(), credentials: z.union([z.object({apiKey: z.string(), baseUrl: z.string().optional(), headers: z.record(z.string(), z.string()).optional(), sendCustomHeadersOnly: z.boolean().optional()}), z.object({resourceName: z.string(), apiKey: z.string(), deploymentName: z.string(), apiVersion: z.string(), baseUrl: z.string().optional(), headers: z.record(z.string(), z.string()).optional(), sendCustomHeadersOnly: z.boolean().optional()}), z.object({project: z.string(), region: z.string(), serviceAccountKey: z.object({}).optional(), workloadIdentityFederationAudience: z.string().optional(), serviceAccountEmail: z.string().optional(), baseUrl: z.string().optional(), headers: z.record(z.string(), z.string()).optional(), sendCustomHeadersOnly: z.boolean().optional()}), z.object({apiKey: z.string(), baseUrl: z.string().optional(), headers: z.record(z.string(), z.string()).optional(), sendCustomHeadersOnly: z.boolean().optional()}), z.object({apiKey: z.string(), baseUrl: z.string().optional(), headers: z.record(z.string(), z.string()).optional(), sendCustomHeadersOnly: z.boolean().optional()}), z.object({apiKey: z.string(), baseUrl: z.string().optional(), headers: z.record(z.string(), z.string()).optional(), sendCustomHeadersOnly: z.boolean().optional()}), z.object({apiKey: z.string(), projectId: z.string(), region: z.string(), baseUrl: z.string().optional(), headers: z.record(z.string(), z.string()).optional(), sendCustomHeadersOnly: z.boolean().optional()}), z.object({apiKey: z.string(), baseUrl: z.string().optional(), headers: z.record(z.string(), z.string()).optional(), sendCustomHeadersOnly: z.boolean().optional()}), z.object({deployments: z.array(z.object({deploymentName: z.string(), targetUri: z.string(), apiKey: z.string()})), headers: z.record(z.string(), z.string()).optional(), sendCustomHeadersOnly: z.boolean().optional()}), z.object({identifier: z.string(), key: z.string()})]).nullable().optional(), config: z.object({actionRules: z.array(aiProviderEnterpriseConfigurationActionRule).optional()}).optional(), isEnabled: z.boolean().optional(), useSystemCredentials: z.boolean().optional(), createdAt: z.string().optional(), updatedAt: z.string().optional(), promptsCount: z.number().optional()});

export const enterpriseAiProviderResource = z.object({data: enterpriseAiProvider});

export const pagination = z.object({offset: z.number().int().optional(), limit: z.number().int().optional()});

export const enterpriseAiProviderCollectionResource = z.object({data: z.array(enterpriseAiProviderResource), pagination: pagination.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
};

/**
 * List AI Providers
 * 
 * GET /ai/providers
 */
export const getApiAiProviders = async (args: GetApiAiProvidersArgs, options?: GetApiAiProvidersOptions) => {
const {baseUrl = "https://api.crowdin.com/api/v2", fetch: fetchFn = fetch} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.offset != null) query.append("offset", String(args.offset))

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