import {z} from 'zod'

export type GetApiConnectionsArgs = {'X-End-User-Wallet-Id'?: string | undefined, order?: ('ASC' | 'DESC') | undefined, filter?: ({id?: string | undefined, userId?: string | undefined, vaultAccountId?: number | undefined, connectionMethod?: string | undefined, feeLevel?: string | undefined, appUrl?: string | undefined, appName?: string | undefined}) | undefined, sort?: ('id' | 'userId' | 'vaultAccountId' | 'createdAt' | 'feeLevel' | 'appUrl' | 'appName') | undefined, pageSize?: number | undefined, next?: string | undefined};

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

export const sessionMetadata = z.object({appUrl: z.string(), appName: z.string().optional(), appDescription: z.string().optional(), appIcon: z.string().optional()});

export const sessionDTO = z.object({id: z.string(), userId: z.string(), sessionMetadata: sessionMetadata, vaultAccountId: z.number(), feeLevel: z.enum(["MEDIUM", "HIGH"]), chainIds: z.array(z.string()), connectionType: z.literal("WalletConnect"), connectionMethod: z.enum(["DESKTOP", "MOBILE", "API"]), creationDate: z.string()});

export const paging = z.object({next: z.string()});

export const getConnectionsResponse = z.object({data: z.array(sessionDTO), paging: paging.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 all open Web3 connections.
 * 
 * GET /connections
 */
export const getApiConnections = async (args: GetApiConnectionsArgs, options?: GetApiConnectionsOptions) => {
const {baseUrl = "https://api.fireblocks.io/v1", fetch: fetchFn = fetch} = options ?? {}

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

if (args['X-End-User-Wallet-Id'] != null) headers.set("X-End-User-Wallet-Id", String(args['X-End-User-Wallet-Id']))
if (args.order != null) query.append("order", String(args.order))
if (args.filter != null) query.append("filter", JSON.stringify(args.filter))
if (args.sort != null) query.append("sort", String(args.sort))
if (args.pageSize != null) query.append("pageSize", String(args.pageSize))
if (args.next != null) query.append("next", String(args.next))

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