import { DatePipe } from "@angular/common";
import { Component } from "@angular/core";
import { ComponentFixture, fakeAsync, TestBed, tick } from "@angular/core/testing";
import { mock, MockProxy } from "jest-mock-extended";

import { AuditService } from "@bitwarden/common/abstractions/audit.service";
import { I18nService } from "@bitwarden/common/platform/abstractions/i18n.service";
import { CipherView } from "@bitwarden/common/vault/models/view/cipher.view";
import { Fido2CredentialView } from "@bitwarden/common/vault/models/view/fido2-credential.view";
import { LoginView } from "@bitwarden/common/vault/models/view/login.view";
import { ToastService } from "@bitwarden/components";

import { CipherFormGenerationService } from "../../abstractions/cipher-form-generation.service";
import { TotpCaptureService } from "../../abstractions/totp-capture.service";
import { CipherFormContainer } from "../../cipher-form-container";
import { AutofillOptionsComponent } from "../autofill-options/autofill-options.component";

import { LoginDetailsSectionComponent } from "./login-details-section.component";

@Component({
  standalone: true,
  selector: "vault-autofill-options",
  template: "",
})
class MockAutoFillOptionsComponent {}

describe("LoginDetailsSectionComponent", () => {
  let component: LoginDetailsSectionComponent;
  let fixture: ComponentFixture<LoginDetailsSectionComponent>;

  let cipherFormContainer: MockProxy<CipherFormContainer>;
  let generationService: MockProxy<CipherFormGenerationService>;
  let auditService: MockProxy<AuditService>;
  let toastService: MockProxy<ToastService>;
  let totpCaptureService: MockProxy<TotpCaptureService>;
  let i18nService: MockProxy<I18nService>;

  beforeEach(async () => {
    cipherFormContainer = mock<CipherFormContainer>();

    generationService = mock<CipherFormGenerationService>();
    auditService = mock<AuditService>();
    toastService = mock<ToastService>();
    totpCaptureService = mock<TotpCaptureService>();
    i18nService = mock<I18nService>();

    await TestBed.configureTestingModule({
      imports: [LoginDetailsSectionComponent],
      providers: [
        { provide: CipherFormContainer, useValue: cipherFormContainer },
        { provide: CipherFormGenerationService, useValue: generationService },
        { provide: AuditService, useValue: auditService },
        { provide: ToastService, useValue: toastService },
        { provide: TotpCaptureService, useValue: totpCaptureService },
        { provide: I18nService, useValue: i18nService },
      ],
    })
      .overrideComponent(LoginDetailsSectionComponent, {
        remove: {
          imports: [AutofillOptionsComponent],
        },
        add: {
          imports: [MockAutoFillOptionsComponent],
        },
      })
      .compileComponents();

    fixture = TestBed.createComponent(LoginDetailsSectionComponent);
    component = fixture.componentInstance;
    fixture.detectChanges();
  });

  afterEach(() => {
    jest.clearAllMocks();
  });

  it("registers 'loginDetailsForm' form with CipherFormContainer", () => {
    expect(cipherFormContainer.registerChildForm).toHaveBeenCalledWith(
      "loginDetails",
      component.loginDetailsForm,
    );
  });

  it("patches 'loginDetailsForm' changes to CipherFormContainer", () => {
    component.loginDetailsForm.patchValue({
      username: "new-username",
      password: "secret-password",
      totp: "123456",
    });

    expect(cipherFormContainer.patchCipher).toHaveBeenCalled();
    const patchFn = cipherFormContainer.patchCipher.mock.lastCall[0];

    const updatedCipher = patchFn(new CipherView());

    expect(updatedCipher.login.username).toBe("new-username");
    expect(updatedCipher.login.password).toBe("secret-password");
    expect(updatedCipher.login.totp).toBe("123456");
  });

  it("disables 'loginDetailsForm' when in partial-edit mode", async () => {
    cipherFormContainer.config.mode = "partial-edit";

    await component.ngOnInit();

    expect(component.loginDetailsForm.disabled).toBe(true);
  });

  it("initializes 'loginDetailsForm' with original cipher view values", async () => {
    (cipherFormContainer.originalCipherView as CipherView) = {
      viewPassword: true,
      login: {
        password: "original-password",
        username: "original-username",
        totp: "original-totp",
      } as LoginView,
    } as CipherView;

    await component.ngOnInit();

    expect(component.loginDetailsForm.value).toEqual({
      username: "original-username",
      password: "original-password",
      totp: "original-totp",
    });
  });

  it("initializes 'loginDetailsForm' with generated password when creating a new cipher", async () => {
    generationService.generateInitialPassword.mockResolvedValue("generated-password");

    await component.ngOnInit();

    expect(component.loginDetailsForm.controls.password.value).toBe("generated-password");
  });

  describe("viewHiddenFields", () => {
    beforeEach(() => {
      (cipherFormContainer.originalCipherView as CipherView) = {
        viewPassword: false,
        login: {
          password: "original-password",
        } as LoginView,
      } as CipherView;
    });

    it("returns value of originalCipher.viewPassword", () => {
      (cipherFormContainer.originalCipherView as CipherView).viewPassword = true;

      expect(component.viewHiddenFields).toBe(true);

      (cipherFormContainer.originalCipherView as CipherView).viewPassword = false;

      expect(component.viewHiddenFields).toBe(false);
    });

    it("returns true when creating a new cipher", () => {
      (cipherFormContainer.originalCipherView as CipherView) = null;

      expect(component.viewHiddenFields).toBe(true);
    });

    it("disables the password and totp fields when passwords are hidden for the original cipher", async () => {
      await component.ngOnInit();

      expect(component.loginDetailsForm.controls.password.disabled).toBe(true);
      expect(component.loginDetailsForm.controls.totp.disabled).toBe(true);
    });

    it("still provides original values for hidden fields when passwords are hidden", async () => {
      await component.ngOnInit();

      component.loginDetailsForm.patchValue({
        username: "new-username",
      });

      expect(cipherFormContainer.patchCipher).toHaveBeenCalled();
      const patchFn = cipherFormContainer.patchCipher.mock.lastCall[0];

      const updatedCipher = patchFn(new CipherView());

      expect(updatedCipher.login.username).toBe("new-username");
      expect(updatedCipher.login.password).toBe("original-password");
    });
  });

  describe("username", () => {
    const getGenerateUsernameBtn = () =>
      fixture.nativeElement.querySelector("button[data-testid='generate-username-button']");

    it("should show generate username button when editable", () => {
      expect(getGenerateUsernameBtn()).not.toBeNull();
    });

    it("should hide generate username button when not editable", fakeAsync(() => {
      component.loginDetailsForm.controls.username.disable();
      fixture.detectChanges();
      expect(getGenerateUsernameBtn()).toBeNull();
    }));

    it("should generate a username when the generate username button is clicked", fakeAsync(() => {
      generationService.generateUsername.mockResolvedValue("generated-username");

      getGenerateUsernameBtn().click();

      tick();

      expect(component.loginDetailsForm.controls.username.value).toEqual("generated-username");
    }));

    it("should not replace an existing username if generation returns null", fakeAsync(() => {
      generationService.generateUsername.mockResolvedValue(null);

      getGenerateUsernameBtn().click();

      tick();

      const usernameSpy = jest.spyOn(component.loginDetailsForm.controls.username, "patchValue");

      expect(usernameSpy).not.toHaveBeenCalled();
    }));
  });

  describe("password", () => {
    const getGeneratePasswordBtn = () =>
      fixture.nativeElement.querySelector("button[data-testid='generate-password-button']");

    const getCheckPasswordBtn = () =>
      fixture.nativeElement.querySelector("button[data-testid='check-password-button']");

    const getTogglePasswordVisibilityBtn = () =>
      fixture.nativeElement.querySelector("button[data-testid='toggle-password-visibility']");

    it("should show the password visibility toggle button based on viewHiddenFields", () => {
      jest.spyOn(component, "viewHiddenFields", "get").mockReturnValue(true);
      fixture.detectChanges();
      expect(getTogglePasswordVisibilityBtn()).not.toBeNull();

      jest.spyOn(component, "viewHiddenFields", "get").mockReturnValue(false);
      fixture.detectChanges();
      expect(getTogglePasswordVisibilityBtn()).toBeNull();
    });

    describe("password generation", () => {
      it("should show generate password button when editable", () => {
        expect(getGeneratePasswordBtn()).not.toBeNull();
      });

      it("should hide generate password button when not editable", fakeAsync(() => {
        component.loginDetailsForm.controls.password.disable();
        fixture.detectChanges();

        expect(getGeneratePasswordBtn()).toBeNull();
      }));

      it("should generate a password when the generate password button is clicked", fakeAsync(() => {
        generationService.generatePassword.mockResolvedValue("generated-password");

        getGeneratePasswordBtn().click();

        tick();

        expect(component.loginDetailsForm.controls.password.value).toEqual("generated-password");
      }));

      it("should not replace an existing password if generation returns null", fakeAsync(() => {
        generationService.generatePassword.mockResolvedValue(null);

        getGeneratePasswordBtn().click();

        tick();

        const passwordSpy = jest.spyOn(component.loginDetailsForm.controls.password, "patchValue");

        expect(passwordSpy).not.toHaveBeenCalled();
      }));
    });

    describe("password checking", () => {
      it("should show the password check button when a password is present and editable", () => {
        component.loginDetailsForm.controls.password.setValue("password");
        fixture.detectChanges();
        expect(getCheckPasswordBtn()).not.toBeNull();
      });

      it("should hide the password check button when the password is missing", () => {
        component.loginDetailsForm.controls.password.setValue(null);
        fixture.detectChanges();
        expect(getCheckPasswordBtn()).toBeNull();
      });

      it("should hide the password check button when the password is not editable", () => {
        component.loginDetailsForm.controls.password.disable();
        fixture.detectChanges();
        expect(getCheckPasswordBtn()).toBeNull();
      });

      it("should call checkPassword when the password check button is clicked", fakeAsync(() => {
        component.checkPassword = jest.fn();
        component.loginDetailsForm.controls.password.setValue("password");

        fixture.detectChanges();

        getCheckPasswordBtn().click();

        tick();

        expect(component.checkPassword).toHaveBeenCalled();
      }));

      describe("checkPassword", () => {
        it("should not call the audit service when the password is empty", async () => {
          component.loginDetailsForm.controls.password.setValue(null);

          await component.checkPassword();

          expect(auditService.passwordLeaked).not.toHaveBeenCalled();
          expect(toastService.showToast).not.toHaveBeenCalled();
        });

        it("should show a warning toast when the password has been exposed in a data breach", async () => {
          component.loginDetailsForm.controls.password.setValue("password");
          auditService.passwordLeaked.mockResolvedValue(1);
          i18nService.t.mockReturnValue("passwordExposedMsg");

          await component.checkPassword();

          expect(auditService.passwordLeaked).toHaveBeenCalledWith("password");
          expect(toastService.showToast).toHaveBeenCalledWith({
            variant: "warning",
            title: null,
            message: "passwordExposedMsg",
          });
          expect(i18nService.t).toHaveBeenCalledWith("passwordExposed", "1");
        });

        it("should show a success toast when the password has not been exposed in a data breach", async () => {
          component.loginDetailsForm.controls.password.setValue("password");
          auditService.passwordLeaked.mockResolvedValue(0);
          i18nService.t.mockReturnValue("passwordSafeMsg");

          await component.checkPassword();

          expect(auditService.passwordLeaked).toHaveBeenCalledWith("password");
          expect(toastService.showToast).toHaveBeenCalledWith({
            variant: "success",
            title: null,
            message: "passwordSafeMsg",
          });
          expect(i18nService.t).toHaveBeenCalledWith("passwordSafe");
        });
      });
    });
  });

  describe("totp", () => {
    const getToggleTotpVisibilityBtn = () =>
      fixture.nativeElement.querySelector("button[data-testid='toggle-totp-visibility']");

    const getCaptureTotpBtn = () =>
      fixture.nativeElement.querySelector("button[data-testid='capture-totp-button']");

    it("should show the totp visibility toggle button based on viewHiddenFields", () => {
      jest.spyOn(component, "viewHiddenFields", "get").mockReturnValue(true);
      fixture.detectChanges();
      expect(getToggleTotpVisibilityBtn()).not.toBeNull();

      jest.spyOn(component, "viewHiddenFields", "get").mockReturnValue(false);
      fixture.detectChanges();
      expect(getToggleTotpVisibilityBtn()).toBeNull();
    });

    it("should show the totp capture button based on canCaptureTotp", () => {
      jest.spyOn(component, "canCaptureTotp", "get").mockReturnValue(true);
      fixture.detectChanges();
      expect(getCaptureTotpBtn()).not.toBeNull();

      jest.spyOn(component, "canCaptureTotp", "get").mockReturnValue(false);
      fixture.detectChanges();
      expect(getCaptureTotpBtn()).toBeNull();
    });

    it("should call captureTotp when the capture totp button is clicked", fakeAsync(() => {
      component.captureTotp = jest.fn();
      fixture.detectChanges();

      getCaptureTotpBtn().click();

      tick();

      expect(component.captureTotp).toHaveBeenCalled();
    }));

    describe("canCaptureTotp", () => {
      it("should return true when totpCaptureService is present and totp is editable", () => {
        component.loginDetailsForm.controls.totp.enable();
        expect(component.canCaptureTotp).toBe(true);
      });

      it("should return false when totpCaptureService is missing", () => {
        (component as any).totpCaptureService = null;
        expect(component.canCaptureTotp).toBe(false);
      });

      it("should return false when totp is disabled", () => {
        component.loginDetailsForm.controls.totp.disable();
        expect(component.canCaptureTotp).toBe(false);
      });
    });

    describe("captureTotp", () => {
      it("should not call totpCaptureService.captureTotpSecret when canCaptureTotp is false", async () => {
        jest.spyOn(component, "canCaptureTotp", "get").mockReturnValue(false);
        await component.captureTotp();
        expect(totpCaptureService.captureTotpSecret).not.toHaveBeenCalled();
      });

      it("should patch the totp value when totpCaptureService.captureTotpSecret returns a value", async () => {
        jest.spyOn(component, "canCaptureTotp", "get").mockReturnValue(true);
        totpCaptureService.captureTotpSecret.mockResolvedValue("some-totp-secret");
        i18nService.t.mockReturnValue("totpCaptureSuccessMsg");

        await component.captureTotp();

        expect(component.loginDetailsForm.controls.totp.value).toBe("some-totp-secret");
        expect(toastService.showToast).toHaveBeenCalledWith({
          variant: "success",
          title: null,
          message: "totpCaptureSuccessMsg",
        });
      });

      it("should show an error toast when totpCaptureService.captureTotpSecret throws", async () => {
        jest.spyOn(component, "canCaptureTotp", "get").mockReturnValue(true);
        totpCaptureService.captureTotpSecret.mockRejectedValue(new Error());
        i18nService.t.mockReturnValueOnce("errorOccurredMsg");
        i18nService.t.mockReturnValueOnce("totpCaptureErrorMsg");

        const totpSpy = jest.spyOn(component.loginDetailsForm.controls.totp, "patchValue");

        await component.captureTotp();

        expect(totpSpy).not.toHaveBeenCalled();
        expect(toastService.showToast).toHaveBeenCalledWith({
          variant: "error",
          title: "errorOccurredMsg",
          message: "totpCaptureErrorMsg",
        });
      });
    });
  });

  describe("passkeys", () => {
    const passkeyDate = new Date();
    const dateSpy = jest
      .spyOn(DatePipe.prototype, "transform")
      .mockReturnValue(passkeyDate.toString());

    const getRemovePasskeyBtn = () =>
      fixture.nativeElement.querySelector("button[data-testid='remove-passkey-button']");

    const getPasskeyField = () =>
      fixture.nativeElement.querySelector("input[data-testid='passkey-field']");

    beforeEach(() => {
      (cipherFormContainer.originalCipherView as CipherView) = {
        login: Object.assign(new LoginView(), {
          fido2Credentials: [{ creationDate: passkeyDate } as Fido2CredentialView],
        }),
      } as CipherView;

      fixture = TestBed.createComponent(LoginDetailsSectionComponent);
      component = fixture.componentInstance;

      jest.spyOn(component, "viewHiddenFields", "get").mockReturnValue(true);
    });

    it("renders the passkey field when available", () => {
      i18nService.t.mockReturnValue("Created");

      fixture.detectChanges();

      const passkeyField = getPasskeyField();

      expect(passkeyField).not.toBeNull();
      expect(dateSpy).toHaveBeenLastCalledWith(passkeyDate, "short");
      expect(passkeyField.value).toBe("Created " + passkeyDate.toString());
    });

    it("renders the passkey remove button when editable", () => {
      fixture.detectChanges();

      expect(getRemovePasskeyBtn()).not.toBeNull();
    });

    it("does not render the passkey remove button when not editable", () => {
      cipherFormContainer.config.mode = "partial-edit";

      fixture.detectChanges();

      expect(getRemovePasskeyBtn()).toBeNull();
    });

    it("does not render the passkey remove button when viewHiddenFields is false", () => {
      jest.spyOn(component, "viewHiddenFields", "get").mockReturnValue(false);

      fixture.detectChanges();

      expect(getRemovePasskeyBtn()).toBeNull();
    });

    it("hides the passkey field when missing a passkey", () => {
      (cipherFormContainer.originalCipherView as CipherView).login.fido2Credentials = [];

      fixture.detectChanges();

      expect(getPasskeyField()).toBeNull();
    });

    it("should remove the passkey when the remove button is clicked", fakeAsync(() => {
      fixture.detectChanges();

      getRemovePasskeyBtn().click();

      tick();

      expect(cipherFormContainer.patchCipher).toHaveBeenCalled();
      const patchFn = cipherFormContainer.patchCipher.mock.lastCall[0];

      const updatedCipher = patchFn(new CipherView());

      expect(updatedCipher.login.fido2Credentials).toBeNull();
      expect(component.hasPasskey).toBe(false);
    }));
  });
});