import { describe, it, expect, vi } from 'vitest';
import { render, screen } from '@testing-library/svelte';
import userEvent from '@testing-library/user-event';
import RecipePicker from './RecipePicker.svelte';

const suggestions = [
	{ recipe: { id: 's1', name: 'Lachsfilet', effort: 'easy', cookTimeMin: 25 }, scoreDelta: 1.5, hasConflict: false },
	{ recipe: { id: 's2', name: 'Hähnchen-Curry', effort: 'easy', cookTimeMin: 35 }, scoreDelta: -1.5, hasConflict: true }
];

const allRecipes = [
	{ id: 'r1', name: 'Beef Bourguignon', effort: 'hard', cookTimeMin: 150 },
	{ id: 'r2', name: 'Spaghetti Carbonara', effort: 'easy', cookTimeMin: 20 },
	{ id: 'r3', name: 'Tomatensuppe', effort: 'easy', cookTimeMin: 30 }
];

const baseProps = {
	planId: 'plan-1',
	date: '2026-04-05',
	dateLabel: 'Samstag, 5. April',
	suggestions,
	allRecipes,
	onpick: vi.fn()
};

describe('RecipePicker', () => {
	it('shows date label in header', () => {
		render(RecipePicker, { props: baseProps });
		expect(screen.getByText('Samstag, 5. April')).toBeTruthy();
	});

	it('shows Empfohlen section', () => {
		render(RecipePicker, { props: baseProps });
		expect(screen.getByText(/Empfohlen/i)).toBeTruthy();
	});

	it('shows all suggestion recipe names', () => {
		render(RecipePicker, { props: baseProps });
		expect(screen.getByText('Lachsfilet')).toBeTruthy();
		expect(screen.getByText('Hähnchen-Curry')).toBeTruthy();
	});

	it('shows green badge when hasConflict is false', () => {
		render(RecipePicker, { props: baseProps });
		// Lachsfilet: hasConflict = false → green badge
		const badge = screen.getByTestId('badge-s1');
		expect(badge.getAttribute('data-type')).toBe('good');
	});

	it('shows yellow badge when hasConflict is true', () => {
		render(RecipePicker, { props: baseProps });
		// Hähnchen-Curry: hasConflict = true → yellow badge
		const badge = screen.getByTestId('badge-s2');
		expect(badge.getAttribute('data-type')).toBe('warning');
	});

	it('shows Alle Rezepte section', () => {
		render(RecipePicker, { props: baseProps });
		expect(screen.getByText(/Alle Rezepte/i)).toBeTruthy();
	});

	it('shows all recipe names in Alle Rezepte', () => {
		render(RecipePicker, { props: baseProps });
		expect(screen.getByText('Beef Bourguignon')).toBeTruthy();
		expect(screen.getByText('Spaghetti Carbonara')).toBeTruthy();
		expect(screen.getByText('Tomatensuppe')).toBeTruthy();
	});

	it('filters recipes by search query', async () => {
		render(RecipePicker, { props: baseProps });
		const input = screen.getByRole('searchbox');
		await userEvent.type(input, 'Spaghetti');
		expect(screen.queryByText('Beef Bourguignon')).toBeNull();
		expect(screen.getByText('Spaghetti Carbonara')).toBeTruthy();
	});

	it('calls onpick with recipeId and name when Wählen clicked for suggestion', async () => {
		const onpick = vi.fn();
		render(RecipePicker, { props: { ...baseProps, onpick } });
		const buttons = screen.getAllByRole('button', { name: /Wählen/i });
		await userEvent.click(buttons[0]);
		expect(onpick).toHaveBeenCalledWith('s1', 'Lachsfilet');
	});

	it('calls onpick when Wählen clicked for all-recipes item', async () => {
		const onpick = vi.fn();
		render(RecipePicker, { props: { ...baseProps, onpick } });
		const buttons = screen.getAllByRole('button', { name: /Wählen/i });
		// First 2 are suggestions, rest are allRecipes
		await userEvent.click(buttons[2]);
		expect(onpick).toHaveBeenCalledWith('r1', 'Beef Bourguignon');
	});

	it('shows empty state when search has no results', async () => {
		render(RecipePicker, { props: baseProps });
		const input = screen.getByRole('searchbox');
		await userEvent.type(input, 'xyznotfound');
		expect(screen.getByText(/Keine Treffer/i)).toBeTruthy();
	});

	it('shows loading skeleton instead of Empfohlen section when isLoading is true', () => {
		render(RecipePicker, { props: { ...baseProps, isLoading: true } });
		expect(screen.getByTestId('suggestions-loading')).toBeTruthy();
		expect(screen.queryByText(/Empfohlen/i)).toBeNull();
	});

	it('hides loading skeleton when isLoading is false and suggestions are present', () => {
		render(RecipePicker, { props: { ...baseProps, isLoading: false } });
		expect(screen.queryByTestId('suggestions-loading')).toBeNull();
		expect(screen.getByText(/Empfohlen/i)).toBeTruthy();
	});
});