import {z} from 'zod'

export type FunctionUpdateRequest = {function: {name?: string | undefined, slug?: string | undefined, lock_version?: number | undefined, description?: string | undefined, code?: string | undefined, invoke_response_mode?: ('wrapped' | 'passthrough') | undefined, runtime_config?: {[key: string]: unknown} | undefined, public_endpoint?: boolean | undefined}};

export type PatchApiFunctionsFunctionIdArgs = {body: FunctionUpdateRequest};

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

export const function = z.object({id: z.string(), name: z.string(), slug: z.string(), lock_version: z.number().int().optional(), description: z.string().nullable().optional(), code: z.string().optional(), version: z.number().int().nullable().optional(), status: z.enum(["draft", "deployed", "error"]), last_deployed_at: z.string().nullable().optional(), function_type: z.enum(["cloudflare_worker", "supabase_function"]), invoke_response_mode: z.enum(["wrapped", "passthrough"]).optional(), public_endpoint: z.boolean().optional(), runtime_config: z.record(z.string(), z.unknown()).nullable().optional(), endpoint_url: z.string().nullable().optional(), project_id: z.string().optional(), created_by_id: z.string().nullable().optional(), created_at: z.string(), updated_at: z.string()});

export const functionResponse = z.object({data: function});

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
};

/**
 * Update function
 * 
 * PATCH /functions/{function_id}
 */
export const patchApiFunctionsFunctionId = async (args: PatchApiFunctionsFunctionIdArgs, options?: PatchApiFunctionsFunctionIdOptions) => {
const {baseUrl = "https://api.kapso.ai/platform/v1", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (ApiKeyAuth !== undefined) headers.set("X-API-Key", ApiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/functions/${encodeURIComponent(String(args.function_id))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "PATCH", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(functionResponse, await res.json())
};