import { TestBed } from '@angular/core/testing';
import { ActivatedRoute, provideRouter } from '@angular/router';
import { MatDialog } from '@angular/material/dialog';
import { of, Subject, throwError } from 'rxjs';
import { vi } from 'vitest';
import {
	FinalizeLeaseRequest,
	FinalizationMetadata,
	LeaseFinalizationService,
	LeaseFinalizationState,
} from '../../services/lease-finalization.service';
import { WorkspaceService } from '../../services/workspace.service';
import { LeaseFinalizationPage } from './lease-finalization-page';

describe('LeaseFinalizationPage', () => {
	const revision = {
		number: 4,
		templateVersion: '2026.10',
		sourceFingerprint: 'source',
		sha256: 'sha256',
		generatedAt: '2026-07-19T10:00:00Z',
		authorId: 'owner-1',
		furnitureInventory: { templateVersion: 'FR-MEUBLE-2025-01', lines: [] },
		privateAreas: [],
		annexes: [],
		warningCodes: [],
		warnings: [],
	};
	const state: LeaseFinalizationState = {
		revision,
		guaranteeSimulatorUrl: 'https://www.service-public.fr/simulateur',
		warningCodes: ['SECURITY_DEPOSIT_ABOVE_TWO_MONTHS'],
		warnings: [{ code: 'SECURITY_DEPOSIT_ABOVE_TWO_MONTHS', ruleVersion: '2026-07-01' }],
		guaranteeRequirements: [],
		suggestedInventoryCorrections: [],
		finalization: null,
	};
	const finalization: FinalizationMetadata = {
		revisionNumber: 4,
		templateVersion: '2026.10',
		lastSignatureDate: '2026-07-19',
		signedFileName: 'bail-signe.pdf',
		signedSha256: 'signed-sha256',
		authorId: 'owner-1',
		finalizedAt: '2026-07-19T10:30:00Z',
		overrides: [],
		entryInventoryDiscrepancies: false,
		inventoryCorrections: [],
		allInventoryCorrectionsInitialed: false,
	};
	const lease = {
		id: 'lease-1',
		apartmentId: 'apartment-1',
		tenantIds: ['tenant-1'],
		guarantors: [],
		specialClauses: [],
		leaseType: 'STANDARD' as const,
		startDate: '2026-07-01',
		endDate: '2027-06-30',
		monthlyRent: 800,
		monthlyCharges: 50,
		securityDeposit: 800,
		dueDay: 5,
		chargeMethod: 'FLAT_RATE' as const,
		indexFlatRate: false,
		status: 'ACTIVE' as const,
	};
	const getState = vi.fn();
	const uploadGuaranteeDeed = vi.fn();
	const finalize = vi.fn();
	const workspace = { acceptLeaseFinalization: vi.fn() };
	const dialog = { open: vi.fn() };

	beforeEach(() => {
		vi.clearAllMocks();
		getState.mockReturnValue(of(state));
		dialog.open.mockReturnValue({ afterClosed: () => of(true) });
		TestBed.configureTestingModule({
			providers: [
				provideRouter([]),
				{
					provide: ActivatedRoute,
					useValue: { snapshot: { paramMap: { get: () => 'lease-1' } } },
				},
				{
					provide: LeaseFinalizationService,
					useValue: { getState, uploadGuaranteeDeed, finalize },
				},
				{ provide: WorkspaceService, useValue: workspace },
				{ provide: MatDialog, useValue: dialog },
			],
		});
	});

	it('shows a skeleton, then a retryable load error', () => {
		const response = new Subject<LeaseFinalizationState>();
		getState.mockReturnValueOnce(response);
		const fixture = TestBed.createComponent(LeaseFinalizationPage);
		fixture.detectChanges();
		expect(fixture.nativeElement.querySelector('.finalization-skeleton')).not.toBeNull();

		response.error({ error: { message: 'Bail introuvable' } });
		fixture.detectChanges();
		expect(fixture.nativeElement.textContent).toContain('Bail introuvable');

		getState.mockReturnValueOnce(of(state));
		fixture.nativeElement.querySelector('.load-error button').click();
		fixture.detectChanges();
		expect(getState).toHaveBeenCalledTimes(2);
		expect(fixture.nativeElement.textContent).toContain('Révision 4 · modèle 2026.10');
	});

	it('instructs the landlord to generate a revision when none exists', () => {
		getState.mockReturnValueOnce(of({ ...state, revision: null }));
		const fixture = TestBed.createComponent(LeaseFinalizationPage);
		fixture.detectChanges();

		expect(fixture.nativeElement.textContent).toContain("Générez d'abord le bail");
		expect(fixture.nativeElement.querySelector('app-lease-finalization-form')).toBeNull();
	});

	it('asks for final confirmation, prevents duplicates, and publishes success', () => {
		const response = new Subject<{
			lease: typeof lease;
			rentDues: [];
			finalization: FinalizationMetadata;
		}>();
		finalize.mockReturnValue(response);
		const fixture = TestBed.createComponent(LeaseFinalizationPage);
		fixture.detectChanges();
		const request: FinalizeLeaseRequest = {
			signedLease: new File(['lease'], 'bail-signe.pdf', { type: 'application/pdf' }),
			revisionNumber: 4,
			lastSignatureDate: '2026-07-19',
			allPartiesSigned: true,
			revisionMatches: true,
			confirmedWarningCodes: ['SECURITY_DEPOSIT_ABOVE_TWO_MONTHS'],
			entryInventoryDiscrepancies: false,
			inventoryCorrections: [],
			allInventoryCorrectionsInitialed: false,
		};

		fixture.componentInstance.requestFinalization(request);
		fixture.componentInstance.requestFinalization(request);

		expect(dialog.open).toHaveBeenCalledOnce();
		expect(finalize).toHaveBeenCalledWith('lease-1', request);
		expect(fixture.componentInstance.submitting()).toBe(true);

		response.next({ lease, rentDues: [], finalization });
		response.complete();
		fixture.detectChanges();

		expect(workspace.acceptLeaseFinalization).toHaveBeenCalledWith(lease, []);
		expect(fixture.nativeElement.textContent).toContain('Bail finalisé et désormais immuable');
		expect(fixture.nativeElement.querySelector('app-lease-finalization-form')).toBeNull();
	});

	it('renders an immutable summary when the lease was already finalized', () => {
		getState.mockReturnValueOnce(of({ ...state, finalization }));
		const fixture = TestBed.createComponent(LeaseFinalizationPage);
		fixture.detectChanges();

		expect(fixture.nativeElement.textContent).toContain('bail-signe.pdf');
		expect(fixture.nativeElement.textContent).toContain('signed-sha256');
		expect(fixture.nativeElement.querySelector('input')).toBeNull();
	});

	it('keeps a finalization failure actionable without showing success', () => {
		finalize.mockReturnValue(
			throwError(() => ({ status: 409, error: { message: 'PDF signé refusé' } })),
		);
		const fixture = TestBed.createComponent(LeaseFinalizationPage);
		fixture.detectChanges();
		const request: FinalizeLeaseRequest = {
			signedLease: new File(['lease'], 'bail-signe.pdf', { type: 'application/pdf' }),
			revisionNumber: 4,
			lastSignatureDate: '2026-07-19',
			allPartiesSigned: true,
			revisionMatches: true,
			confirmedWarningCodes: ['SECURITY_DEPOSIT_ABOVE_TWO_MONTHS'],
			entryInventoryDiscrepancies: false,
			inventoryCorrections: [],
			allInventoryCorrectionsInitialed: false,
		};

		fixture.componentInstance.requestFinalization(request);
		fixture.detectChanges();

		expect(fixture.nativeElement.textContent).toContain('PDF signé refusé');
		expect(fixture.nativeElement.textContent).not.toContain('désormais immuable');
		expect(fixture.componentInstance.submitting()).toBe(false);
	});
});