/**
 * mavi network preference (this browser).
 * Used for balance, send, and test fund.
 */

export type MaviNetworkId = "private-anvil" | "public-anvil";

export type MaviNetwork = {
  id: MaviNetworkId;
  label: string;
  /** Short label for badges */
  shortLabel: string;
  rpcUrl: string;
  chainId: number;
  /** Dev fund from anvil #0 only makes sense on local anvils */
  canFund: boolean;
  hint: string;
};

export const MAVI_NETWORKS: Record<MaviNetworkId, MaviNetwork> = {
  "private-anvil": {
    id: "private-anvil",
    label: "Private local (anvil)",
    shortLabel: "Private :8545",
    rpcUrl: "http://127.0.0.1:8545",
    chainId: 31337,
    canFund: true,
    hint: "Permissioned stand-in — docker compose private-anvil",
  },
  "public-anvil": {
    id: "public-anvil",
    label: "Public local (anvil)",
    shortLabel: "Public :8546",
    rpcUrl: "http://127.0.0.1:8546",
    chainId: 31338,
    canFund: true,
    hint: "Anchor stand-in — docker compose public-anvil",
  },
};

const KEY = "mavi_network_v1";

export function listMaviNetworks(): MaviNetwork[] {
  return Object.values(MAVI_NETWORKS);
}

export function readNetworkId(): MaviNetworkId {
  if (typeof window === "undefined") return "private-anvil";
  try {
    const v = window.localStorage.getItem(KEY);
    if (v === "private-anvil" || v === "public-anvil") return v;
  } catch {
    /* ignore */
  }
  return "private-anvil";
}

export function getActiveNetwork(): MaviNetwork {
  return MAVI_NETWORKS[readNetworkId()];
}

export function setNetworkId(id: MaviNetworkId): void {
  if (typeof window === "undefined") return;
  try {
    window.localStorage.setItem(KEY, id);
    window.dispatchEvent(new Event("mavi-network"));
  } catch {
    /* ignore */
  }
}