import { describe, expect, it } from "vitest";
import {
  actionKeyForEvent, bindDesktopSlot, defaultUiLayout, desktopSlotForKey,
  exportUiPreferences, importUiPreferences, normalizeActionKey, normalizeUiPreferences,
} from "./uiLayout";

describe("personal UI layouts", () => {
  it("migrates old accounts to independent Mobile and PC layouts with exactly six empty slots", () => {
    const ui = normalizeUiPreferences(undefined);
    expect(ui.slots.mobile).toEqual([null, null, null]);
    expect(ui.slots.pc).toEqual([null, null, null]);
    ui.current.pc.elements.party.visible = false;
    expect(ui.current.mobile.elements.party.visible).toBe(true);
    expect(ui.current.pc.bars).toHaveLength(5);
    expect(ui.current.pc.bars.every((bar) => bar.slots.length === 12)).toBe(true);
  });
  it("round trips named slots, positions, hidden elements, geometry, assignments, and key chords", () => {
    const ui = normalizeUiPreferences(null);
    const layout = ui.current.pc;
    layout.wowBars = true; layout.barCount = 5;
    layout.elements.party = { visible: false, position: { x: .32, y: .45 }, width: 200 };
    layout.bars[4].columns = 3;
    layout.bars[4].slots[11] = { abilityId: "test-heal", key: "Ctrl+Shift+KeyQ" };
    ui.slots.pc[2] = { name: "Raid night", layout };
    ui.slots.mobile[0] = { name: "Travel", layout: defaultUiLayout() };
    expect(importUiPreferences(exportUiPreferences(ui))).toEqual(ui);
  });
  it("reassigns conflicts even from hidden bars, accepts modifiers and clears a binding", () => {
    let layout = defaultUiLayout(); layout.wowBars = true; layout.barCount = 5;
    layout = bindDesktopSlot(layout, 4, 11, "Digit1");
    expect(layout.bars[0].slots[0].key).toBeNull();
    expect(desktopSlotForKey(layout, "Digit1")).toBe(layout.bars[4].slots[11]);
    layout.elements["bar-5"].visible = false;
    expect(desktopSlotForKey(layout, "Digit1")).not.toBeNull();
    layout.barCount = 4;
    expect(desktopSlotForKey(layout, "Digit1")).toBeNull();
    layout = bindDesktopSlot(layout, 4, 11, null);
    expect(layout.bars[4].slots[11].key).toBeNull();
    expect(actionKeyForEvent({ code: "KeyQ", ctrlKey: true, shiftKey: true, altKey: false, metaKey: false })).toBe("Ctrl+Shift+KeyQ");
    expect(normalizeActionKey("Escape")).toBe("Escape");
    expect(normalizeActionKey("ShiftLeft")).toBeNull();
  });
  it.each([
    ["unsupported versions", (data: any) => { data.version = 99; }],
    ["extra slots", (data: any) => { data.slots.mobile.push(null); }],
    ["invalid coordinates", (data: any) => { data.current.pc.elements.party.position = { x: "bad", y: 0 }; }],
    ["invalid bar geometry", (data: any) => { data.current.pc.bars[0].columns = 7; }],
    ["invalid keys", (data: any) => { data.current.pc.bars[0].slots[0].key = "NotAKey"; }],
    ["duplicate chords", (data: any) => { data.current.pc.bars[0].slots[1].key = "Digit1"; }],
    ["missing buttons", (data: any) => { data.current.pc.bars[0].slots.pop(); }],
  ])("rejects %s without mutating the original preferences", (_, mutate) => {
    const ui = normalizeUiPreferences(null);
    const original = exportUiPreferences(ui);
    const data = JSON.parse(original); mutate(data);
    expect(() => importUiPreferences(JSON.stringify(data))).toThrow();
    expect(exportUiPreferences(ui)).toBe(original);
  });
  it("rejects malformed and oversized imports", () => {
    expect(() => importUiPreferences("{")).toThrow("valid JSON");
    expect(() => importUiPreferences(" ".repeat(256001))).toThrow("256 KB");
  });
});