import { describe, it, expect } from 'vitest';

// Test the TYPE_CONFIG structure and CodeBlockPlaceholder behavior through type checks
describe('CodeBlockPlaceholder types', () => {
    // Test constants matching the component's config
    const TYPE_LABELS: Record<string, string> = {
        chart: 'chart',
        mermaid: 'diagram',
        proposal: 'options',
        code: 'code',
        image: 'image',
        link: 'link',
    };

    const TYPE_HEIGHTS: Record<string, number> = {
        chart: 200,
        mermaid: 150,
        proposal: 100,
        code: 80,
        image: 150,
        link: 24,
    };

    it('should have config for all code block types', () => {
        const types = ['chart', 'mermaid', 'proposal', 'code', 'image', 'link'];
        types.forEach(type => {
            expect(TYPE_LABELS[type]).toBeTruthy();
            expect(TYPE_HEIGHTS[type]).toBeGreaterThan(0);
        });
    });

    it('should have appropriate default heights', () => {
        // Chart placeholders should be tall enough to show a chart preview
        expect(TYPE_HEIGHTS.chart).toBeGreaterThanOrEqual(200);

        // Link placeholders should be inline (small height)
        expect(TYPE_HEIGHTS.link).toBeLessThan(50);

        // Image placeholders should have reasonable height
        expect(TYPE_HEIGHTS.image).toBeGreaterThanOrEqual(100);
    });

    it('should have unique labels for user feedback', () => {
        const labels = Object.values(TYPE_LABELS);
        const uniqueLabels = new Set(labels);
        expect(uniqueLabels.size).toBe(labels.length);
    });
});

describe('CodeBlockErrorBoundary behavior', () => {
    it('should be a React Component (verified by import)', async () => {
        // This test verifies the component can be imported without error
        const { CodeBlockErrorBoundary } = await import('./CodeBlockPlaceholder');
        expect(CodeBlockErrorBoundary).toBeDefined();
        expect(typeof CodeBlockErrorBoundary).toBe('function');
    });
});