import * as vscode from "vscode";
import { listWorkspaces, normalizeAnythingLlmBaseUrl } from "./anythingllmClient";
import type { AnythingWorkspace } from "./types";

const CONFIG_SECTION = "anythingllm";

const readConfig = (): { baseUrl: string; apiKey: string } => {
  const cfg = vscode.workspace.getConfiguration(CONFIG_SECTION);
  const baseUrl = typeof cfg.get("baseUrl") === "string" ? cfg.get("baseUrl") as string : "";
  const apiKey = typeof cfg.get("apiKey") === "string" ? cfg.get("apiKey") as string : "";
  return { baseUrl, apiKey };
};

const workspaceLabel = (w: AnythingWorkspace): string => `${w.name} (${w.slug})`;

const openWorkspaceInBrowser = async (baseUrl: string, slug: string): Promise<void> => {
  const root = normalizeAnythingLlmBaseUrl(baseUrl);
  const path = `/workspace/${encodeURIComponent(slug)}`;
  const uri = vscode.Uri.parse(`${root}${path}`);
  await vscode.env.openExternal(uri);
};

export const activate = (context: vscode.ExtensionContext): void => {
  const listCmd = vscode.commands.registerCommand("anythingllm.listWorkspaces", async () => {
    const { baseUrl, apiKey } = readConfig();
    try {
      const workspaces = await listWorkspaces(baseUrl, apiKey);
      if (workspaces.length === 0) {
        void vscode.window.showInformationMessage("AnythingLLM: no workspaces.");
        return;
      }
      const picked = await vscode.window.showQuickPick(
        workspaces.map((w) => ({
          label: workspaceLabel(w),
          workspace: w,
        })),
        { placeHolder: "Select a workspace" },
      );
      if (picked === undefined) {
        return;
      }
      await openWorkspaceInBrowser(baseUrl, picked.workspace.slug);
    } catch (e) {
      const message = e instanceof Error ? e.message : String(e);
      void vscode.window.showErrorMessage(`AnythingLLM: ${message}`);
    }
  });

  const openUiCmd = vscode.commands.registerCommand("anythingllm.openWebUi", async () => {
    const { baseUrl } = readConfig();
    try {
      const root = normalizeAnythingLlmBaseUrl(baseUrl);
      await vscode.env.openExternal(vscode.Uri.parse(root));
    } catch (e) {
      const message = e instanceof Error ? e.message : String(e);
      void vscode.window.showErrorMessage(`AnythingLLM: ${message}`);
    }
  });

  context.subscriptions.push(listCmd, openUiCmd);
};

export const deactivate = (): void => {
  /* no-op */
};