/**
 * buildDockhandOverrideFile: the .env.dockhand contents shared by both git-stack
 * deploy paths (local writeFileSync + Hawser stackFiles). A zero-var git stack must
 * still produce a (header-only) file so a compose referencing env_file: .env.dockhand
 * can resolve it (#1336).
 */
import { describe, it, expect } from 'bun:test';
import { buildDockhandOverrideFile } from '../src/lib/server/dockhand-override-file';

describe('buildDockhandOverrideFile', () => {
	it('returns a header-only file (no trailing blank line) for ZERO vars', () => {
		const out = buildDockhandOverrideFile({});
		expect(out).toBe(
			'# Auto-generated by Dockhand. Do not edit - changes will be overwritten on next deploy.\n'
		);
		// exactly one trailing newline - no empty value line that could clear a repo var
		expect(out.endsWith('\n')).toBe(true);
		expect(out.endsWith('\n\n')).toBe(false);
	});

	it('writes KEY=value lines under the header', () => {
		const out = buildDockhandOverrideFile({ A: '1', B: 'two' });
		expect(out).toContain('A=1');
		expect(out).toContain('B=two');
		expect(out.startsWith('# Auto-generated')).toBe(true);
		expect(out.endsWith('\n')).toBe(true);
	});

	it('keeps values verbatim (including = and spaces)', () => {
		const out = buildDockhandOverrideFile({ URL: 'https://x/y?a=b c' });
		expect(out).toContain('URL=https://x/y?a=b c');
	});
});