import type { Command } from "commander";
import { defaultRuntime } from "../../runtime.js";
import { formatAge, parsePairingList } from "./format.js";
import { callGatewayCli, nodesCallOpts, resolveNodeId } from "./rpc.js";
import type { NodesRpcOpts } from "./types.js";

export function registerNodesPairingCommands(nodes: Command) {
  nodesCallOpts(
    nodes
      .command("pending")
      .description("List pending pairing requests")
      .action(async (opts: NodesRpcOpts) => {
        try {
          const result = (await callGatewayCli(
            "node.pair.list",
            opts,
            {},
          )) as unknown;
          const { pending } = parsePairingList(result);
          if (opts.json) {
            defaultRuntime.log(JSON.stringify(pending, null, 2));
            return;
          }
          if (pending.length === 0) {
            defaultRuntime.log("No pending pairing requests.");
            return;
          }
          for (const r of pending) {
            const name = r.displayName || r.nodeId;
            const repair = r.isRepair ? " (repair)" : "";
            const ip = r.remoteIp ? ` · ${r.remoteIp}` : "";
            const age =
              typeof r.ts === "number"
                ? ` · ${formatAge(Date.now() - r.ts)} ago`
                : "";
            defaultRuntime.log(`- ${r.requestId}: ${name}${repair}${ip}${age}`);
          }
        } catch (err) {
          defaultRuntime.error(`nodes pending failed: ${String(err)}`);
          defaultRuntime.exit(1);
        }
      }),
  );

  nodesCallOpts(
    nodes
      .command("approve")
      .description("Approve a pending pairing request")
      .argument("<requestId>", "Pending request id")
      .action(async (requestId: string, opts: NodesRpcOpts) => {
        try {
          const result = await callGatewayCli("node.pair.approve", opts, {
            requestId,
          });
          defaultRuntime.log(JSON.stringify(result, null, 2));
        } catch (err) {
          defaultRuntime.error(`nodes approve failed: ${String(err)}`);
          defaultRuntime.exit(1);
        }
      }),
  );

  nodesCallOpts(
    nodes
      .command("reject")
      .description("Reject a pending pairing request")
      .argument("<requestId>", "Pending request id")
      .action(async (requestId: string, opts: NodesRpcOpts) => {
        try {
          const result = await callGatewayCli("node.pair.reject", opts, {
            requestId,
          });
          defaultRuntime.log(JSON.stringify(result, null, 2));
        } catch (err) {
          defaultRuntime.error(`nodes reject failed: ${String(err)}`);
          defaultRuntime.exit(1);
        }
      }),
  );

  nodesCallOpts(
    nodes
      .command("rename")
      .description("Rename a paired node (display name override)")
      .requiredOption("--node <idOrNameOrIp>", "Node id, name, or IP")
      .requiredOption("--name <displayName>", "New display name")
      .action(async (opts: NodesRpcOpts) => {
        try {
          const nodeId = await resolveNodeId(opts, String(opts.node ?? ""));
          const name = String(opts.name ?? "").trim();
          if (!nodeId || !name) {
            defaultRuntime.error("--node and --name required");
            defaultRuntime.exit(1);
            return;
          }
          const result = await callGatewayCli("node.rename", opts, {
            nodeId,
            displayName: name,
          });
          if (opts.json) {
            defaultRuntime.log(JSON.stringify(result, null, 2));
            return;
          }
          defaultRuntime.log(`node rename ok: ${nodeId} -> ${name}`);
        } catch (err) {
          defaultRuntime.error(`nodes rename failed: ${String(err)}`);
          defaultRuntime.exit(1);
        }
      }),
  );
}