import { describe, expect, test } from "bun:test";
import { renderToStaticMarkup } from "react-dom/server";
import { Hand, MousePointer2 } from "lucide-react";

import { FloatingDock } from "@/components/ui/aceternity/floating-dock";
import { CANVAS_MODE_TOOL_ID, defaultToolbarPrefs, migrateToolbarPrefs, resolveToolbarEntries, type ToolContext, type ToolbarHandlers } from "@/lib/canvas/tool-registry";

function createMainContext(canvasTool: "move" | "box-select" = "box-select"): ToolContext {
    return {
        selectedCount: 0,
        selectedNodeTypes: new Set(),
        selectedVideoCount: 0,
        canvasTool,
        workspaceMode: "professional",
        isProjectLinked: false,
        canUndo: false,
        canRedo: false,
        extractingVideoFrames: false,
        extractingAudio: false,
        trimmingVideo: false,
        mergingVideos: false,
        addPanelOpen: false,
        appearancePanelOpen: false,
        settingsPanelOpen: false,
        handlers: {} as ToolbarHandlers,
    };
}

describe("canvas toolbar mode switch", () => {
    test.each(["default", "compact"] as const)("renders %s canvas modes as an icon-only sliding switch", (size) => {
        const entries = resolveToolbarEntries("main", createMainContext(), null);
        const modeSwitch = entries.find((entry) => entry.kind === "switch");
        if (!modeSwitch) throw new Error("Missing canvas mode switch");
        const html = renderToStaticMarkup(<FloatingDock size={size} items={[modeSwitch]} />);
        const diameter = size === "compact" ? 24 : 26;

        expect(html).toContain(`width:${diameter}px;height:${diameter}px`);
        expect(html.match(/aceternity-dock-switch-thumb/g)).toHaveLength(1);
        expect(html).toContain("absolute top-1/2 rounded-full");
        expect(html).toContain("grid size-4 shrink-0 place-items-center");
        expect(html).not.toContain("is-labeled");
        expect(html).not.toContain("选择</span>");
        expect(html).not.toContain("移动</span>");
        expect(html).toContain('aria-label="区域选择"');
        expect(html).toContain('aria-label="抓手工具"');
    });

    test("renders grab and box-select as one dock switch", () => {
        const entries = resolveToolbarEntries("main", createMainContext("box-select"), null);
        const modeSwitch = entries.find((entry) => entry.kind === "switch" && entry.id === CANVAS_MODE_TOOL_ID);

        expect(modeSwitch?.kind).toBe("switch");
        if (modeSwitch?.kind !== "switch") return;
        expect(modeSwitch.value).toBe("box-select");
        expect(modeSwitch.options.map((option) => option.value)).toEqual(["box-select", "move"]);
        expect(entries.some((entry) => entry.id === "tool-move" || entry.id === "tool-box-select")).toBe(false);
    });

    test("reflects the active canvas tool on the switch", () => {
        const entries = resolveToolbarEntries("main", createMainContext("move"), null);
        const modeSwitch = entries.find((entry) => entry.kind === "switch");
        expect(modeSwitch?.kind === "switch" && modeSwitch.value).toBe("move");
    });

    test("migrates legacy separate tool prefs into the switch item", () => {
        const migrated = migrateToolbarPrefs("main", {
            order: ["tool-move", "tool-box-select", "tool-undo", "tool-add"],
            hidden: [],
        });
        expect(migrated.order[0]).toBe(CANVAS_MODE_TOOL_ID);
        expect(migrated.order).not.toContain("tool-move");
        expect(migrated.order).not.toContain("tool-box-select");
        expect(migrated.hidden).toEqual([]);
    });

    test("hides the switch only when both legacy tools were hidden", () => {
        const oneHidden = migrateToolbarPrefs("main", {
            order: ["tool-move", "tool-box-select", "tool-undo"],
            hidden: ["tool-move"],
        });
        expect(oneHidden.hidden).toEqual([]);

        const bothHidden = migrateToolbarPrefs("main", {
            order: ["tool-undo", "tool-move", "tool-box-select"],
            hidden: ["tool-move", "tool-box-select"],
        });
        expect(bothHidden.order[1]).toBe(CANVAS_MODE_TOOL_ID);
        expect(bothHidden.hidden).toEqual([CANVAS_MODE_TOOL_ID]);
    });

    test("leaves non-main toolbar prefs unchanged", () => {
        const prefs = { order: ["tool-move"], hidden: ["tool-box-select"] };
        expect(migrateToolbarPrefs("selection", prefs)).toEqual(prefs);
    });

    test("keeps the switch visible in default main toolbar prefs", () => {
        expect(defaultToolbarPrefs("main").order[0]).toBe(CANVAS_MODE_TOOL_ID);
        expect(defaultToolbarPrefs("main").hidden).toEqual([]);
    });

    test("hides rarely used arrange tools from the selection toolbar by default", () => {
        const prefs = defaultToolbarPrefs("selection");
        expect(prefs.hidden).toEqual(expect.arrayContaining([
            "selection-arrange-row",
            "selection-arrange-column",
            "selection-arrange-grid",
            "selection-arrange-flow",
            "selection-create-reference-group",
        ]));

        const entries = resolveToolbarEntries("selection", createMainContext(), null);
        expect(entries.some((entry) => entry.id === "selection-align-left")).toBe(true);
        expect(entries.some((entry) => entry.id === "selection-distribute-x")).toBe(true);
        expect(entries.some((entry) => entry.id === "selection-batch-connect")).toBe(true);
        expect(entries.some((entry) => entry.id === "selection-arrange-grid")).toBe(false);
        expect(entries.some((entry) => entry.id === "selection-create-reference-group")).toBe(false);
    });

    test("renders the pill switch with an active circular thumb", () => {
        const html = renderToStaticMarkup(
            <FloatingDock
                items={[{
                    kind: "switch",
                    id: CANVAS_MODE_TOOL_ID,
                    label: "抓手 / 框选",
                    value: "box-select",
                    options: [
                        { id: "box-select", label: "区域选择", icon: <MousePointer2 />, value: "box-select" },
                        { id: "move", label: "抓手工具", icon: <Hand />, value: "move" },
                    ],
                    onChange: () => {},
                }]}
            />,
        );

        expect(html).toContain('role="radiogroup"');
        expect(html).toContain("aceternity-dock-switch-track");
        expect(html).toContain("aceternity-dock-switch-thumb");
        expect(html).toContain('aria-label="区域选择"');
        expect(html).toContain('aria-label="抓手工具"');
        expect(html).toContain('aria-checked="true"');
        expect(html).toContain('aria-checked="false"');
    });
});