import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
import { newFixture, type Fixture } from '../helpers/fixture.js';
import {
    manifestVersion,
    parseScriptVersions,
    scriptVersionError
} from '../../src/lib/script-version.js';
import { artifactVersionLabel } from '../../src/lib/artifact-version.js';

it('validates numeric release versions and exact manifest filenames', () => {
    for (const value of [
        undefined,
        null,
        '',
        ' ',
        'v1.0.0',
        '01.0.0',
        '1.0',
        '1.0.0-beta',
        '1.0.0\nextra',
        '1.'.repeat(50)
    ])
        expect(scriptVersionError(value)).not.toBe('');
    for (const value of ['0.0.0', '1.20.3', ' 1.2.0 ']) expect(scriptVersionError(value)).toBe('');
    expect(manifestVersion({}, 'constructor')).toBe('');
    expect(parseScriptVersions('{"hud.gsc":"1.2.0","HUD.gsc":"2.0.0","t5-plugin":"tag"}')).toEqual({
        'hud.gsc': '1.2.0',
        'HUD.gsc': '2.0.0'
    });
    for (const text of [
        'oops',
        '[]',
        'null',
        '{}',
        '{"hud.gsc":1}',
        '{"hud.gsc":"1"}',
        '{"path/hud.gsc":"1.0.0"}'
    ])
        expect(() => parseScriptVersions(text)).toThrow();
});

it('distinguishes historical script uploads from publisher versions', () => {
    expect(artifactVersionLabel({ version: 3 }, 'script')).toBe('Unversioned (upload 3)');
    expect(artifactVersionLabel({ version: 3, release_version: '1.2.0' }, 'script')).toBe(
        '1.2.0 (upload 3)'
    );
    expect(artifactVersionLabel({ version: 3 }, 'config')).toBe('v3');
});

let fixture: Fixture;
beforeEach(async () => {
    vi.resetModules();
    fixture = await newFixture();
});
afterEach(async () => {
    await fixture.cleanup();
});
const script = { name: 'HUD', targetRelPath: 'hud.gsc', content: Buffer.from('main(){}') };

describe('mandatory script releases', () => {
    it('rejects missing and invalid versions without creating records', async () => {
        const { createScript, uploadNewVersion, listScripts, listVersions } =
            await import('../../src/lib/server/fleet/scripts.js');
        for (const releaseVersion of [undefined, '', 'v1.0.0', '1.0', '1.0.0-rc1']) {
            expect(() => createScript({ ...script, releaseVersion })).toThrow(/release version/);
        }
        expect(listScripts()).toHaveLength(0);
        const saved = createScript({ ...script, releaseVersion: ' 1.0.0 ' });
        expect(saved.version.release_version).toBe('1.0.0');
        expect(() => uploadNewVersion(saved.script.id, script.content)).toThrow(/required/);
        expect(listVersions(saved.script.id)).toHaveLength(1);
    });

    it('reuses identical releases, rejects changed contents and accepts older versions', async () => {
        const { createScript, uploadNewVersion, listVersions } =
            await import('../../src/lib/server/fleet/scripts.js');
        const saved = createScript({ ...script, releaseVersion: '2.0.0' });
        expect(uploadNewVersion(saved.script.id, script.content, 'retry', '2.0.0')).toEqual(
            saved.version
        );
        expect(() =>
            uploadNewVersion(saved.script.id, Buffer.from('changed'), undefined, '2.0.0')
        ).toThrow(/Bump/);
        const older = uploadNewVersion(
            saved.script.id,
            Buffer.from('old release'),
            undefined,
            '1.0.0'
        );
        expect(older).toMatchObject({ version: 2, release_version: '1.0.0' });
        expect(listVersions(saved.script.id)).toHaveLength(2);
        expect(
            createScript({ ...script, name: 'Other', releaseVersion: '2.0.0' }).version
                .release_version
        ).toBe('2.0.0');
    });

    it('preserves legacy content and does not infer a release from matching bytes', async () => {
        const { createScript, uploadNewVersion, getVersion, getVersionContent } =
            await import('../../src/lib/server/fleet/scripts.js');
        const { db } = await import('../../src/lib/server/db/index.js');
        const saved = createScript({ ...script, releaseVersion: '1.0.0' });
        db()
            .prepare('UPDATE script_versions SET release_version = NULL WHERE id = ?')
            .run(saved.version.id);
        const next = uploadNewVersion(saved.script.id, script.content, undefined, '1.0.0');
        expect(next).toMatchObject({ version: 2, release_version: '1.0.0' });
        expect(getVersion(saved.version.id)!.release_version).toBeNull();
        expect(getVersionContent(saved.version.id)).toEqual(script.content);
    });

    it('enforces the API contract even when reuseExisting is requested', async () => {
        const create = await import('../../src/routes/api/scripts/+server.js');
        const upload = await import('../../src/routes/api/scripts/[id]/versions/+server.js');
        const { listScripts, listVersions } = await import('../../src/lib/server/fleet/scripts.js');
        const url = new URL('http://test/api/scripts');
        const form = new FormData();
        form.set('name', 'HUD');
        form.set('content', new File(['main(){}'], 'hud.gsc'));
        const request = () => new Request(url, { method: 'POST', body: form });
        expect((await create.POST({ url, request: request() })).status).toBe(400);
        expect(listScripts()).toHaveLength(0);
        form.set('releaseVersion', '1.0.0');
        const saved = await (await create.POST({ url, request: request() })).json();
        const params = { id: String(saved.script.id) };
        form.set('reuseExisting', 'true');
        form.delete('releaseVersion');
        expect((await upload.POST({ params, request: request() })).status).toBe(400);
        form.set('releaseVersion', '1.0.0');
        expect(await (await upload.POST({ params, request: request() })).json()).toMatchObject({
            reused: true,
            version: { id: saved.versionId, release_version: '1.0.0' }
        });
        form.set('content', new File(['different'], 'hud.gsc'));
        expect((await upload.POST({ params, request: request() })).status).toBe(409);
        expect(listVersions(saved.script.id)).toHaveLength(1);
        form.set('releaseVersion', '0.9.0');
        expect((await upload.POST({ params, request: request() })).status).toBe(200);
    });
});