import { describe, expect, it } from "vitest";
import { evaluatePluginClientBundle } from "./evaluate";

function bundle(body: string): string {
  return `(function() {
    const module = { exports: {} };
    module.exports.default = function(plugin) { ${body}; return function() {}; };
    return module.exports;
  })`;
}

describe("evaluatePluginClientBundle", () => {
  it("collects a surface and its sidebar placement", () => {
    const plugin = evaluatePluginClientBundle(
      "example",
      bundle(`
        function Surface() { return null; }
        plugin.addSurface("main", Surface);
        plugin.addSidebarItem({ id: "main", title: "Example", icon: "Blocks", surface: "main" });
      `),
    );

    expect(plugin.id).toBe("example");
    expect(plugin.surfaces.map((surface) => surface.id)).toEqual(["main"]);
    expect(plugin.sidebarItems).toEqual([
      { id: "main", title: "Example", icon: "Blocks", surface: "main" },
    ]);
  });

  it("collects a declarative attachment source", () => {
    const plugin = evaluatePluginClientBundle(
      "linear",
      bundle(`
        plugin.addAttachmentSource({
          id: "issues",
          title: "Linear issue",
          icon: "CircleDot",
          pickerTitle: "Attach Linear issue",
          searchPlaceholder: "Search by identifier or title",
          search: { name: "issues.search", input: {}, output: {} },
        });
      `),
    );

    expect(plugin.attachmentSources).toEqual([
      {
        id: "issues",
        title: "Linear issue",
        icon: "CircleDot",
        pickerTitle: "Attach Linear issue",
        searchPlaceholder: "Search by identifier or title",
        search: { name: "issues.search", input: {}, output: {} },
      },
    ]);
  });

  it("collects contextual workspace panels and Command Center items", () => {
    const plugin = evaluatePluginClientBundle(
      "review",
      bundle(`
        function ReviewPanel() { return null; }
        plugin.addWorkspacePanel({
          id: "review",
          title: "Review",
          icon: "Scan",
          context: "agent",
          Component: ReviewPanel,
        });
        plugin.addCommandCenterItem({
          id: "open-review",
          title: "Open review",
          icon: "Scan",
          context: "agent",
          onSelect() {},
        });
      `),
    );

    expect(
      plugin.workspacePanels.map(({ id, title, icon, context }) => ({
        id,
        title,
        icon,
        context,
      })),
    ).toEqual([{ id: "review", title: "Review", icon: "Scan", context: "agent" }]);
    expect(
      plugin.commandCenterItems.map(({ id, title, icon, context }) => ({
        id,
        title,
        icon,
        context,
      })),
    ).toEqual([{ id: "open-review", title: "Open review", icon: "Scan", context: "agent" }]);
  });

  it("rejects duplicate workspace panel and Command Center ids", () => {
    expect(() =>
      evaluatePluginClientBundle(
        "review",
        bundle(`
          function Panel() { return null; }
          const panel = { id: "review", title: "Review", icon: "Scan", context: "workspace", Component: Panel };
          plugin.addWorkspacePanel(panel);
          plugin.addWorkspacePanel(panel);
        `),
      ),
    ).toThrow("Duplicate workspace panel: review");

    expect(() =>
      evaluatePluginClientBundle(
        "review",
        bundle(`
          const item = { id: "review", title: "Review", icon: "Scan", context: "global", onSelect() {} };
          plugin.addCommandCenterItem(item);
          plugin.addCommandCenterItem(item);
        `),
      ),
    ).toThrow("Duplicate Command Center item: review");
  });

  it("rejects duplicate attachment source ids", () => {
    expect(() =>
      evaluatePluginClientBundle(
        "linear",
        bundle(`
          const source = {
            id: "issues",
            title: "Linear issue",
            icon: "CircleDot",
            pickerTitle: "Attach Linear issue",
            searchPlaceholder: "Search",
            search: { name: "issues.search", input: {}, output: {} },
          };
          plugin.addAttachmentSource(source);
          plugin.addAttachmentSource(source);
        `),
      ),
    ).toThrow("Duplicate attachment source: issues");
  });

  it("rejects a sidebar placement whose surface does not exist", () => {
    expect(() =>
      evaluatePluginClientBundle(
        "example",
        bundle(`
          plugin.addSidebarItem({ id: "main", title: "Example", icon: "Blocks", surface: "missing" });
        `),
      ),
    ).toThrow("references missing surface missing");
  });

  it("rejects a bundle without a default contribution function", () => {
    expect(() => evaluatePluginClientBundle("example", `(function() { return {}; })`)).toThrow(
      "must default export a function",
    );
  });

  it("requires a cleanup function", () => {
    expect(() =>
      evaluatePluginClientBundle("example", `(function() { return { default: function() {} }; })`),
    ).toThrow("must return a cleanup function");
  });

  it("does not publish partial contributions when setup fails", () => {
    expect(() =>
      evaluatePluginClientBundle(
        "example",
        `(function() { return { default: function(plugin) {
          plugin.addSurface("main", function() { return null; });
          throw new Error("setup exploded");
        } }; })`,
      ),
    ).toThrow("setup exploded");
  });
});