/**
 * ContactListItem Component Tests
 *
 * Comprehensive test suite for the ContactListItem component.
 * Tests component rendering, props, events, and user interactions.
 *
 * @author Matthew Raymer
 */

import { describe, it, expect, beforeEach } from "vitest";
import { mount } from "@vue/test-utils";
import ContactListItem from "@/components/ContactListItem.vue";
import { createStandardMockContact } from "@/test/factories/contactFactory";
import {
  createComponentWrapper,
  testLifecycleEvents,
  testPerformance,
  testAccessibility,
  testErrorHandling,
} from "@/test/utils/componentTestUtils";

describe("ContactListItem", () => {
  let wrapper: any;

  beforeEach(() => {
    wrapper = null;
  });

  const mountComponent = (props = {}) => {
    return mount(ContactListItem, {
      props: {
        contact: createStandardMockContact(),
        activeDid: "did:ethr:test:active",
        showCheckbox: false,
        showActions: false,
        isSelected: false,
        showGiveTotals: true,
        showGiveConfirmed: true,
        givenToMeDescriptions: {},
        givenToMeConfirmed: {},
        givenToMeUnconfirmed: {},
        givenByMeDescriptions: {},
        givenByMeConfirmed: {},
        givenByMeUnconfirmed: {},
        ...props,
      },
      global: {
        stubs: {
          EntityIcon: {
            template: '<div class="entity-icon-stub">EntityIcon</div>',
            props: ["contact", "iconSize"],
          },
          "font-awesome": {
            template: '<span class="font-awesome-stub">FontAwesome</span>',
          },
        },
      },
    });
  };

  describe("Component Rendering", () => {
    it("should render with correct structure when all props are provided", () => {
      wrapper = mountComponent();

      expect(wrapper.exists()).toBe(true);
      expect(wrapper.find('[data-testid="contactListItem"]').exists()).toBe(
        true,
      );
      expect(wrapper.find(".entity-icon-stub").exists()).toBe(true);
      expect(wrapper.find("h2").exists()).toBe(true);
    });

    it("should display contact name correctly", () => {
      const contact = createStandardMockContact({ name: "Test Contact" });
      wrapper = mountComponent({ contact });

      expect(
        wrapper
          .find("h2")
          .text()
          .replace(/\u00A0/g, " "),
      ).toContain("Test Contact");
    });

    it("should display contact DID correctly", () => {
      const contact = createStandardMockContact({ did: "did:ethr:test:123" });
      wrapper = mountComponent({ contact });

      expect(wrapper.text()).toContain("did:ethr:test:123");
    });

    it("should display contact notes when available", () => {
      const contact = createStandardMockContact({ notes: "Test notes" });
      wrapper = mountComponent({ contact });

      expect(wrapper.text()).toContain("Test notes");
    });
  });

  describe("Checkbox Functionality", () => {
    it("should show checkbox when showCheckbox is true", () => {
      wrapper = mountComponent({ showCheckbox: true });

      expect(wrapper.find('[data-testid="contactCheckOne"]').exists()).toBe(
        true,
      );
    });

    it("should not show checkbox when showCheckbox is false", () => {
      wrapper = mountComponent({ showCheckbox: false });

      expect(wrapper.find('[data-testid="contactCheckOne"]').exists()).toBe(
        false,
      );
    });

    it("should emit toggle-selection event when checkbox is clicked", () => {
      const contact = createStandardMockContact({ did: "did:ethr:test:123" });
      wrapper = mountComponent({ showCheckbox: true, contact });

      wrapper.find('[data-testid="contactCheckOne"]').trigger("click");

      expect(wrapper.emitted("toggle-selection")).toBeTruthy();
      expect(wrapper.emitted("toggle-selection")[0]).toEqual([
        "did:ethr:test:123",
      ]);
    });

    it("should reflect isSelected prop in checkbox state", () => {
      wrapper = mountComponent({ showCheckbox: true, isSelected: true });

      const checkbox = wrapper.find('[data-testid="contactCheckOne"]');
      expect(checkbox.attributes("checked")).toBeDefined();
    });
  });

  describe("Actions Section", () => {
    it("should show actions when showActions is true and contact is not active", () => {
      wrapper = mountComponent({
        showActions: true,
        contact: createStandardMockContact({ did: "did:ethr:test:other" }),
      });

      expect(wrapper.find('[data-testid="offerButton"]').exists()).toBe(true);
    });

    it("should not show actions when contact is active", () => {
      const contact = createStandardMockContact({
        did: "did:ethr:test:active",
      });
      wrapper = mountComponent({
        showActions: true,
        contact,
        activeDid: "did:ethr:test:active",
      });

      expect(wrapper.find('[data-testid="offerButton"]').exists()).toBe(false);
    });

    it("should emit show-identicon event when EntityIcon is clicked", () => {
      const contact = createStandardMockContact();
      wrapper = mountComponent({ contact });

      wrapper.find(".entity-icon-stub").trigger("click");

      expect(wrapper.emitted("show-identicon")).toBeTruthy();
      expect(wrapper.emitted("show-identicon")[0]).toEqual([contact]);
    });

    it("should emit open-offer-dialog event when offer button is clicked", () => {
      wrapper = mountComponent({
        showActions: true,
        contact: createStandardMockContact({ did: "did:ethr:test:other" }),
      });

      wrapper.find('[data-testid="offerButton"]').trigger("click");

      expect(wrapper.emitted("open-offer-dialog")).toBeTruthy();
      expect(wrapper.emitted("open-offer-dialog")[0][0]).toBe(
        "did:ethr:test:other",
      );
    });
  });

  describe("Give Amounts Display", () => {
    it("should display give amounts correctly for given to me", () => {
      const contact = createStandardMockContact({ did: "did:ethr:test:123" });
      wrapper = mountComponent({
        contact,
        showActions: true,
        givenToMeConfirmed: { "did:ethr:test:123": 50 },
        givenToMeUnconfirmed: { "did:ethr:test:123": 25 },
      });

      const buttons = wrapper.findAll("button");
      if (buttons.length > 0) {
        expect(buttons[0].text()).toBe("75"); // 50 + 25
      }
    });

    it("should display give amounts correctly for given by me", () => {
      const contact = createStandardMockContact({ did: "did:ethr:test:123" });
      wrapper = mountComponent({
        contact,
        showActions: true,
        givenByMeConfirmed: { "did:ethr:test:123": 30 },
        givenByMeUnconfirmed: { "did:ethr:test:123": 20 },
      });

      const buttons = wrapper.findAll("button");
      if (buttons.length > 1) {
        expect(buttons[1].text()).toBe("50"); // 30 + 20
      }
    });

    it("should show only confirmed amounts when showGiveConfirmed is true", () => {
      const contact = createStandardMockContact({ did: "did:ethr:test:123" });
      wrapper = mountComponent({
        contact,
        showActions: true,
        showGiveTotals: false,
        showGiveConfirmed: true,
        givenToMeConfirmed: { "did:ethr:test:123": 50 },
        givenToMeUnconfirmed: { "did:ethr:test:123": 25 },
      });

      const buttons = wrapper.findAll("button");
      if (buttons.length > 0) {
        expect(buttons[0].text()).toBe("50"); // Only confirmed
      }
    });

    it("should show only unconfirmed amounts when showGiveConfirmed is false", () => {
      const contact = createStandardMockContact({ did: "did:ethr:test:123" });
      wrapper = mountComponent({
        contact,
        showActions: true,
        showGiveTotals: false,
        showGiveConfirmed: false,
        givenToMeConfirmed: { "did:ethr:test:123": 50 },
        givenToMeUnconfirmed: { "did:ethr:test:123": 25 },
      });

      const buttons = wrapper.findAll("button");
      if (buttons.length > 0) {
        expect(buttons[0].text()).toBe("25"); // Only unconfirmed
      }
    });
  });

  describe("Error Handling", () => {
    it("should handle undefined contact name gracefully", () => {
      const contact = createStandardMockContact({ name: undefined });
      wrapper = mountComponent({ contact });

      expect(
        wrapper
          .find("h2")
          .text()
          .replace(/\u00A0/g, " "),
      ).toContain("(no name)");
    });

    it("should handle missing give amounts gracefully", () => {
      const contact = createStandardMockContact({ did: "did:ethr:test:123" });
      wrapper = mountComponent({
        contact,
        showActions: true,
        givenToMeConfirmed: {},
        givenToMeUnconfirmed: {},
        givenByMeConfirmed: {},
        givenByMeUnconfirmed: {},
      });

      const buttons = wrapper.findAll("button");
      if (buttons.length > 0) {
        expect(buttons[0].text()).toBe("0");
      }
      if (buttons.length > 1) {
        expect(buttons[1].text()).toBe("0");
      }
    });

    it("should handle rapid prop changes gracefully", () => {
      wrapper = mountComponent();

      for (let i = 0; i < 10; i++) {
        wrapper.setProps({
          isSelected: i % 2 === 0,
          showCheckbox: i % 3 === 0,
          showActions: i % 4 === 0,
        });
      }

      expect(wrapper.exists()).toBe(true);
    });
  });

  describe("Performance Testing", () => {
    it("should render within performance threshold", () => {
      const performanceResult = testPerformance(() => {
        mountComponent();
      }, 50);

      expect(performanceResult.passed).toBe(true);
      expect(performanceResult.duration).toBeLessThan(50);
    });

    it("should handle multiple re-renders efficiently", () => {
      wrapper = mountComponent();

      const start = performance.now();
      for (let i = 0; i < 50; i++) {
        wrapper.setProps({ isSelected: i % 2 === 0 });
      }
      const end = performance.now();

      expect(end - start).toBeLessThan(200);
    });

    it("should establish performance baseline", () => {
      const start = performance.now();
      wrapper = mountComponent();
      const end = performance.now();

      console.log("Performance Baseline:", {
        renderTime: end - start,
      });

      expect(end - start).toBeLessThan(100);
    });
  });

  describe("Integration Testing", () => {
    it("should integrate with EntityIcon component correctly", () => {
      const contact = createStandardMockContact();
      wrapper = mountComponent({ contact });

      const entityIcon = wrapper.find(".entity-icon-stub");
      expect(entityIcon.exists()).toBe(true);
    });

    it("should handle multiple concurrent events", () => {
      wrapper = mountComponent({ showCheckbox: true, showActions: true });

      // Simulate multiple rapid interactions
      wrapper.find('[data-testid="contactCheckOne"]').trigger("click");
      wrapper.find(".entity-icon-stub").trigger("click");
      wrapper.find('[data-testid="offerButton"]').trigger("click");

      expect(wrapper.emitted("toggle-selection")).toBeTruthy();
      expect(wrapper.emitted("show-identicon")).toBeTruthy();
      expect(wrapper.emitted("open-offer-dialog")).toBeTruthy();
    });
  });

  describe("Snapshot Testing", () => {
    it("should maintain consistent DOM structure", () => {
      wrapper = mountComponent();
      const html = wrapper.html();

      expect(html).toMatch(/<li[^>]*class="[^"]*border-b[^"]*"[^>]*>/);
      expect(html).toMatch(/<div[^>]*class="[^"]*flex[^"]*"[^>]*>/);
      expect(html).toContain("EntityIcon");
      expect(html).toContain('data-testid="contactListItem"');
    });

    it("should maintain consistent structure with different prop combinations", () => {
      const propCombinations = [
        { showCheckbox: true, showActions: false },
        { showCheckbox: false, showActions: true },
        { showCheckbox: true, showActions: true },
        { showCheckbox: false, showActions: false },
      ];

      propCombinations.forEach((props) => {
        const testWrapper = mountComponent(props);
        const html = testWrapper.html();

        expect(html).toMatch(/<li[^>]*class="[^"]*border-b[^"]*"[^>]*>/);
        expect(html).toContain("EntityIcon");

        if (props.showCheckbox) {
          expect(html).toContain('data-testid="contactCheckOne"');
        } else {
          expect(html).not.toContain('data-testid="contactCheckOne"');
        }
      });
    });
  });

  describe("Accessibility Testing", () => {
    it("should meet WCAG accessibility standards", () => {
      wrapper = mountComponent();
      const listItem = wrapper.find('[data-testid="contactListItem"]');
      const checkbox = wrapper.find('[data-testid="contactCheckOne"]');
      const offerButton = wrapper.find('[data-testid="offerButton"]');

      // Semantic structure
      expect(listItem.exists()).toBe(true);
      expect(listItem.element.tagName.toLowerCase()).toBe("li");

      // Form control accessibility
      if (checkbox.exists()) {
        expect(checkbox.attributes("type")).toBe("checkbox");
      }

      // Button accessibility
      if (offerButton.exists()) {
        expect(offerButton.text()).toBe("Offer");
      }
    });

    it("should support keyboard navigation", () => {
      wrapper = mountComponent({ showCheckbox: true, showActions: true });

      const checkbox = wrapper.find('[data-testid="contactCheckOne"]');
      const offerButton = wrapper.find('[data-testid="offerButton"]');

      // Test that controls are clickable (supports keyboard navigation)
      expect(checkbox.exists()).toBe(true);
      expect(offerButton.exists()).toBe(true);

      checkbox.trigger("click");
      expect(wrapper.emitted("toggle-selection")).toBeTruthy();

      offerButton.trigger("click");
      expect(wrapper.emitted("open-offer-dialog")).toBeTruthy();
    });

    it("should have descriptive content", () => {
      const contact = createStandardMockContact({ name: "Test Contact" });
      wrapper = mountComponent({ contact });

      expect(wrapper.text().replace(/\u00A0/g, " ")).toContain("Test Contact");
      expect(wrapper.text()).toContain("did:ethr:test");
    });

    it("should maintain accessibility with different prop combinations", () => {
      const testCases = [
        { showCheckbox: true, showActions: false },
        { showCheckbox: false, showActions: true },
        { showCheckbox: true, showActions: true },
      ];

      testCases.forEach((props) => {
        const testWrapper = mountComponent(props);
        const listItem = testWrapper.find('[data-testid="contactListItem"]');

        expect(listItem.exists()).toBe(true);
        expect(testWrapper.find(".entity-icon-stub").exists()).toBe(true);
      });
    });
  });

  describe("Centralized Utility Testing", () => {
    it("should use centralized component wrapper", () => {
      const wrapperFactory = createComponentWrapper(ContactListItem, {
        contact: createStandardMockContact(),
        activeDid: "did:ethr:test:active",
        showCheckbox: false,
        showActions: false,
        isSelected: false,
        showGiveTotals: true,
        showGiveConfirmed: true,
        givenToMeDescriptions: {},
        givenToMeConfirmed: {},
        givenToMeUnconfirmed: {},
        givenByMeDescriptions: {},
        givenByMeConfirmed: {},
        givenByMeUnconfirmed: {},
      });

      const testWrapper = wrapperFactory();
      expect(testWrapper.exists()).toBe(true);
      expect(testWrapper.find('[data-testid="contactListItem"]').exists()).toBe(
        true,
      );
    });

    it("should test lifecycle events using centralized utilities", async () => {
      wrapper = mountComponent();
      const results = await testLifecycleEvents(wrapper, [
        "mounted",
        "updated",
      ]);

      expect(results).toHaveLength(2);
      expect(results.every((r) => r.success)).toBe(true);
    });

    it("should test performance using centralized utilities", () => {
      const performanceResult = testPerformance(() => {
        mountComponent();
      }, 50);

      expect(performanceResult.passed).toBe(true);
      expect(performanceResult.duration).toBeLessThan(50);
    });

    it("should test accessibility using centralized utilities", () => {
      wrapper = mountComponent();
      const accessibilityChecks = [
        {
          name: "has list item",
          test: (wrapper: any) =>
            wrapper.find('[data-testid="contactListItem"]').exists(),
        },
        {
          name: "has entity icon",
          test: (wrapper: any) => wrapper.find(".entity-icon-stub").exists(),
        },
        {
          name: "has contact name",
          test: (wrapper: any) => wrapper.find("h2").exists(),
        },
      ];

      const results = testAccessibility(wrapper, accessibilityChecks);
      expect(results).toHaveLength(3);
      expect(results.every((r) => r.success && r.passed)).toBe(true);
    });

    it("should test error handling using centralized utilities", async () => {
      wrapper = mountComponent();
      const errorScenarios = [
        {
          name: "invalid props",
          action: async (wrapper: any) => {
            await wrapper.setProps({ isSelected: "invalid" as any });
          },
          expectedBehavior: "should handle gracefully",
        },
      ];

      const results = await testErrorHandling(wrapper, errorScenarios);
      expect(results).toHaveLength(1);
      expect(results.every((r) => r.success)).toBe(true);
    });
  });
});