import { mount } from "@vue/test-utils";
import { describe, it, expect, afterEach } from "vitest";

import UNotify from "../UNotify.vue";
import UIcon from "../../ui.image-icon/UIcon.vue";

import { NotificationType } from "../constants";
import { LocaleSymbol } from "../../composables/useLocale";
import { createVuelessAdapter } from "../../adapter.locale/vueless";

import type { Props, Notification } from "../types";

describe("UNotify.vue", () => {
  // Create mock locale instance
  const mockLocale = createVuelessAdapter();

  // Helper function to mount component with locale
  function mountWithLocale(props = {}) {
    return mount(UNotify, {
      props,
      global: {
        provide: {
          [LocaleSymbol]: mockLocale,
        },
      },
    });
  }

  // Mock notification data
  const mockNotification: Notification = {
    id: "test-id",
    type: NotificationType.Success,
    label: "Success",
    description: "Operation completed successfully",
  };

  // Mock window event dispatch
  function dispatchNotifyEvent(eventName: string, detail: Notification) {
    const event = new CustomEvent(eventName, { detail });

    window.dispatchEvent(event);
  }

  // Clean up after each test
  afterEach(() => {
    dispatchNotifyEvent("notifyClearAll", {} as Notification);
  });

  describe("Props", () => {
    it("X Position – applies the correct xPosition style", async () => {
      async function mountAndGetPositionStyles(xPosition: Props["xPosition"]) {
        const component = mountWithLocale({ xPosition });

        dispatchNotifyEvent("notifyStart", mockNotification);
        await component.vm.$nextTick();

        // @ts-expect-error - Accessing private method for testing
        component.vm.setPosition();
        await component.vm.$nextTick();

        // @ts-expect-error - Accessing private property for testing
        return component.vm.notifyPositionStyles as Record<string, string | undefined>;
      }

      for (const position of ["left", "right"] as const) {
        const positionStyles = await mountAndGetPositionStyles(position);

        expect(positionStyles).toHaveProperty(position);
        expect(positionStyles[position]).toBe("0px");
      }

      const centerStyles = await mountAndGetPositionStyles("center");

      expect(centerStyles).toHaveProperty("left");
      expect(centerStyles.left).toBeDefined();
    });

    it("Y Position – applies the correct yPosition style", async () => {
      const positions = ["top", "bottom"];

      for (const position of positions) {
        const component = mountWithLocale({
          yPosition: position as Props["yPosition"],
        });

        // Add a notification to ensure the component is rendered
        dispatchNotifyEvent("notifyStart", mockNotification);
        await component.vm.$nextTick();

        // Manually trigger setPosition since waitForPageElement won't find the elements in tests
        // @ts-expect-error - Accessing private method for testing
        component.vm.setPosition();
        await component.vm.$nextTick();

        // Access the internal notifyPositionStyles ref
        // @ts-expect-error - Accessing private property for testing
        const positionStyles = component.vm.notifyPositionStyles;

        expect(positionStyles).toHaveProperty(position);
        expect(positionStyles[position]).toBe("0px");
      }
    });

    it("DataTest – applies the correct data-test attribute", () => {
      const dataTest = "test-notify";

      const component = mountWithLocale({
        dataTest,
      });

      expect(component.attributes("data-test")).toBe(dataTest);
    });
  });

  // Event handling tests
  describe("Event Handling", () => {
    it("notifyStart – adds notification when notifyStart event is dispatched", async () => {
      const component = mountWithLocale();

      dispatchNotifyEvent("notifyStart", mockNotification);
      await component.vm.$nextTick();

      expect(component.text()).toContain(mockNotification.label);
      expect(component.text()).toContain(mockNotification.description);
    });

    it("notifyEnd – removes notification when notifyEnd event is dispatched", async () => {
      const component = mountWithLocale();

      // Add notification
      dispatchNotifyEvent("notifyStart", mockNotification);
      await component.vm.$nextTick();

      // Verify it's added
      expect(component.text()).toContain(mockNotification.label);

      // Get the initial notification count
      const initialCount = component.findAllComponents(UIcon).length;

      expect(initialCount).toBeGreaterThan(0);

      // Remove notification
      dispatchNotifyEvent("notifyEnd", mockNotification);
      await component.vm.$nextTick();
      await new Promise((resolve) => setTimeout(resolve, 0)); // Wait for any async updates

      // Verify the notification count has decreased
      const finalCount = component.findAllComponents(UIcon).length;

      expect(finalCount).toBeLessThan(initialCount);
    });

    it("notifyClearAll – clears all notifications when notifyClearAll event is dispatched", async () => {
      const component = mountWithLocale();

      // Add multiple notifications
      dispatchNotifyEvent("notifyStart", {
        ...mockNotification,
        id: "id1",
        label: "Notification 1",
      });
      dispatchNotifyEvent("notifyStart", {
        ...mockNotification,
        id: "id2",
        label: "Notification 2",
      });

      await component.vm.$nextTick();

      // Verify they're added
      expect(component.text()).toContain("Notification 1");
      expect(component.text()).toContain("Notification 2");

      // Clear all notifications
      dispatchNotifyEvent("notifyClearAll", {} as Notification);
      await component.vm.$nextTick();

      // Verify they're all removed
      expect(component.text()).not.toContain("Notification 1");
      expect(component.text()).not.toContain("Notification 2");
    });

    it("Close – removes notification when close button is clicked", async () => {
      const component = mountWithLocale();

      // Add notification
      dispatchNotifyEvent("notifyStart", mockNotification);
      await component.vm.$nextTick();

      // Verify it's added
      expect(component.text()).toContain(mockNotification.label);

      // Directly call the onClickClose method as a fallback for testing
      // @ts-expect-error - Accessing private property for testing
      if (component.vm.notifications.length > 0) {
        // @ts-expect-error - Accessing private method for testing
        component.vm.onClickClose(mockNotification);
        await component.vm.$nextTick();
      }

      // Verify the notification was removed from the internal array
      // @ts-expect-error - Accessing private property for testing
      expect(component.vm.notifications.length).toBe(0);
    });
  });

  // Notification type tests
  describe("Notification Types", () => {
    it("Success – renders success notification with correct icon", async () => {
      const component = mountWithLocale();

      dispatchNotifyEvent("notifyStart", {
        ...mockNotification,
        type: NotificationType.Success,
      });
      await component.vm.$nextTick();

      const icons = component.findAllComponents(UIcon);

      expect(icons.length).toBeGreaterThan(0);

      // Find the success icon by its name prop
      const successIcon = icons.find((icon) => icon.props("name") === "check_circle");

      expect(successIcon).toBeDefined();
    });

    it("Warning – renders warning notification with correct icon", async () => {
      const component = mountWithLocale();

      dispatchNotifyEvent("notifyStart", {
        ...mockNotification,
        type: NotificationType.Warning,
      });
      await component.vm.$nextTick();

      const icons = component.findAllComponents(UIcon);

      expect(icons.length).toBeGreaterThan(0);

      // Find the warning icon by its name prop
      const warningIcon = icons.find((icon) => icon.props("name") === "warning");

      expect(warningIcon).toBeDefined();
    });

    it("Error – renders error notification with correct icon", async () => {
      const component = mountWithLocale();

      dispatchNotifyEvent("notifyStart", {
        ...mockNotification,
        type: NotificationType.Error,
      });
      await component.vm.$nextTick();

      const icons = component.findAllComponents(UIcon);

      expect(icons.length).toBeGreaterThan(0);

      // Find the error icon by its name prop
      const errorIcon = icons.find((icon) => icon.props("name") === "error");

      expect(errorIcon).toBeDefined();
    });

    it("Info – renders info notification with correct icon", async () => {
      const component = mountWithLocale();

      dispatchNotifyEvent("notifyStart", {
        ...mockNotification,
        type: NotificationType.Info,
      });
      await component.vm.$nextTick();

      const icons = component.findAllComponents(UIcon);

      expect(icons.length).toBeGreaterThan(0);

      // Find the info icon by its name prop
      const infoIcon = icons.find((icon) => icon.props("name") === "info");

      expect(infoIcon).toBeDefined();
    });
  });

  describe("Exposed refs", () => {
    it("notificationRef – exposes notificationRef", () => {
      const component = mountWithLocale();

      expect(component.vm.notificationRef).toBeDefined();
    });
  });
});