/**
 * @license
 * Copyright 2025 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import * as path from 'node:path';
import fs from 'node:fs';
import * as os from 'node:os';
import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
import { ExtensionEnablementManager, Override } from './extensionEnablement.js';
import { coreEvents, GEMINI_DIR, } from 'sixth-cli-core';
vi.mock('os', async (importOriginal) => {
    const mockedOs = await importOriginal();
    return {
        ...mockedOs,
        homedir: vi.fn(),
    };
});
// Helper to create a temporary directory for testing
function createTestDir() {
    const dirPath = fs.mkdtempSync(path.join(os.tmpdir(), 'gemini-test-'));
    return {
        path: dirPath,
        cleanup: () => fs.rmSync(dirPath, { recursive: true, force: true }),
    };
}
let testDir;
let manager;
describe('ExtensionEnablementManager', () => {
    beforeEach(() => {
        testDir = createTestDir();
        vi.mocked(os.homedir).mockReturnValue(path.join(testDir.path, GEMINI_DIR));
        manager = new ExtensionEnablementManager();
    });
    afterEach(() => {
        testDir.cleanup();
        // Reset the singleton instance for test isolation
        // eslint-disable-next-line @typescript-eslint/no-explicit-any
        ExtensionEnablementManager.instance = undefined;
    });
    describe('isEnabled', () => {
        it('should return true if extension is not configured', () => {
            expect(manager.isEnabled('ext-test', '/any/path')).toBe(true);
        });
        it('should return true if no overrides match', () => {
            manager.disable('ext-test', false, '/another/path');
            expect(manager.isEnabled('ext-test', '/any/path')).toBe(true);
        });
        it('should enable a path based on an override rule', () => {
            manager.disable('ext-test', true, '/');
            manager.enable('ext-test', true, '/home/user/projects/');
            expect(manager.isEnabled('ext-test', '/home/user/projects/my-app')).toBe(true);
        });
        it('should disable a path based on a disable override rule', () => {
            manager.enable('ext-test', true, '/');
            manager.disable('ext-test', true, '/home/user/projects/');
            expect(manager.isEnabled('ext-test', '/home/user/projects/my-app')).toBe(false);
        });
        it('should respect the last matching rule (enable wins)', () => {
            manager.disable('ext-test', true, '/home/user/projects/');
            manager.enable('ext-test', false, '/home/user/projects/my-app');
            expect(manager.isEnabled('ext-test', '/home/user/projects/my-app')).toBe(true);
        });
        it('should respect the last matching rule (disable wins)', () => {
            manager.enable('ext-test', true, '/home/user/projects/');
            manager.disable('ext-test', false, '/home/user/projects/my-app');
            expect(manager.isEnabled('ext-test', '/home/user/projects/my-app')).toBe(false);
        });
        it('should handle', () => {
            manager.enable('ext-test', true, '/home/user/projects');
            manager.disable('ext-test', false, '/home/user/projects/my-app');
            expect(manager.isEnabled('ext-test', '/home/user/projects/my-app')).toBe(false);
            expect(manager.isEnabled('ext-test', '/home/user/projects/something-else')).toBe(true);
        });
    });
    describe('includeSubdirs', () => {
        it('should add a glob when enabling with includeSubdirs', () => {
            manager.enable('ext-test', true, '/path/to/dir');
            const config = manager.readConfig();
            expect(config['ext-test'].overrides).toContain('/path/to/dir/*');
        });
        it('should not add a glob when enabling without includeSubdirs', () => {
            manager.enable('ext-test', false, '/path/to/dir');
            const config = manager.readConfig();
            expect(config['ext-test'].overrides).toContain('/path/to/dir/');
            expect(config['ext-test'].overrides).not.toContain('/path/to/dir/*');
        });
        it('should add a glob when disabling with includeSubdirs', () => {
            manager.disable('ext-test', true, '/path/to/dir');
            const config = manager.readConfig();
            expect(config['ext-test'].overrides).toContain('!/path/to/dir/*');
        });
        it('should remove conflicting glob rule when enabling without subdirs', () => {
            manager.enable('ext-test', true, '/path/to/dir'); // Adds /path/to/dir*
            manager.enable('ext-test', false, '/path/to/dir'); // Should remove the glob
            const config = manager.readConfig();
            expect(config['ext-test'].overrides).toContain('/path/to/dir/');
            expect(config['ext-test'].overrides).not.toContain('/path/to/dir/*');
        });
        it('should remove conflicting non-glob rule when enabling with subdirs', () => {
            manager.enable('ext-test', false, '/path/to/dir'); // Adds /path/to/dir
            manager.enable('ext-test', true, '/path/to/dir'); // Should remove the non-glob
            const config = manager.readConfig();
            expect(config['ext-test'].overrides).toContain('/path/to/dir/*');
            expect(config['ext-test'].overrides).not.toContain('/path/to/dir/');
        });
        it('should remove conflicting rules when disabling', () => {
            manager.enable('ext-test', true, '/path/to/dir'); // enabled with glob
            manager.disable('ext-test', false, '/path/to/dir'); // disabled without
            const config = manager.readConfig();
            expect(config['ext-test'].overrides).toContain('!/path/to/dir/');
            expect(config['ext-test'].overrides).not.toContain('/path/to/dir/*');
        });
        it('should correctly evaluate isEnabled with subdirs', () => {
            manager.disable('ext-test', true, '/');
            manager.enable('ext-test', true, '/path/to/dir');
            expect(manager.isEnabled('ext-test', '/path/to/dir/')).toBe(true);
            expect(manager.isEnabled('ext-test', '/path/to/dir/sub/')).toBe(true);
            expect(manager.isEnabled('ext-test', '/path/to/another/')).toBe(false);
        });
        it('should correctly evaluate isEnabled without subdirs', () => {
            manager.disable('ext-test', true, '/*');
            manager.enable('ext-test', false, '/path/to/dir');
            expect(manager.isEnabled('ext-test', '/path/to/dir')).toBe(true);
            expect(manager.isEnabled('ext-test', '/path/to/dir/sub')).toBe(false);
        });
    });
    describe('pruning child rules', () => {
        it('should remove child rules when enabling a parent with subdirs', () => {
            // Pre-existing rules for children
            manager.enable('ext-test', false, '/path/to/dir/subdir1');
            manager.disable('ext-test', true, '/path/to/dir/subdir2');
            manager.enable('ext-test', false, '/path/to/another/dir');
            // Enable the parent directory
            manager.enable('ext-test', true, '/path/to/dir');
            const config = manager.readConfig();
            const overrides = config['ext-test'].overrides;
            // The new parent rule should be present
            expect(overrides).toContain(`/path/to/dir/*`);
            // Child rules should be removed
            expect(overrides).not.toContain('/path/to/dir/subdir1/');
            expect(overrides).not.toContain(`!/path/to/dir/subdir2/*`);
            // Unrelated rules should remain
            expect(overrides).toContain('/path/to/another/dir/');
        });
        it('should remove child rules when disabling a parent with subdirs', () => {
            // Pre-existing rules for children
            manager.enable('ext-test', false, '/path/to/dir/subdir1');
            manager.disable('ext-test', true, '/path/to/dir/subdir2');
            manager.enable('ext-test', false, '/path/to/another/dir');
            // Disable the parent directory
            manager.disable('ext-test', true, '/path/to/dir');
            const config = manager.readConfig();
            const overrides = config['ext-test'].overrides;
            // The new parent rule should be present
            expect(overrides).toContain(`!/path/to/dir/*`);
            // Child rules should be removed
            expect(overrides).not.toContain('/path/to/dir/subdir1/');
            expect(overrides).not.toContain(`!/path/to/dir/subdir2/*`);
            // Unrelated rules should remain
            expect(overrides).toContain('/path/to/another/dir/');
        });
        it('should not remove child rules if includeSubdirs is false', () => {
            manager.enable('ext-test', false, '/path/to/dir/subdir1');
            manager.enable('ext-test', false, '/path/to/dir'); // Not including subdirs
            const config = manager.readConfig();
            const overrides = config['ext-test'].overrides;
            expect(overrides).toContain('/path/to/dir/subdir1/');
            expect(overrides).toContain('/path/to/dir/');
        });
    });
    it('should enable a path based on an enable override', () => {
        manager.disable('ext-test', true, '/Users/chrstn');
        manager.enable('ext-test', true, '/Users/chrstn/gemini-cli');
        expect(manager.isEnabled('ext-test', '/Users/chrstn/gemini-cli')).toBe(true);
    });
    it('should ignore subdirs', () => {
        manager.disable('ext-test', false, '/Users/chrstn');
        expect(manager.isEnabled('ext-test', '/Users/chrstn/gemini-cli')).toBe(true);
    });
    describe('extension overrides (-e <name>)', () => {
        beforeEach(() => {
            manager = new ExtensionEnablementManager(['ext-test']);
        });
        it('can enable extensions, case-insensitive', () => {
            manager.disable('ext-test', true, '/');
            expect(manager.isEnabled('ext-test', '/')).toBe(true);
            expect(manager.isEnabled('Ext-Test', '/')).toBe(true);
            // Double check that it would have been disabled otherwise
            expect(new ExtensionEnablementManager().isEnabled('ext-test', '/')).toBe(false);
        });
        it('disable all other extensions', () => {
            manager = new ExtensionEnablementManager(['ext-test']);
            manager.enable('ext-test-2', true, '/');
            expect(manager.isEnabled('ext-test-2', '/')).toBe(false);
            // Double check that it would have been enabled otherwise
            expect(new ExtensionEnablementManager().isEnabled('ext-test-2', '/')).toBe(true);
        });
        it('none disables all extensions', () => {
            manager = new ExtensionEnablementManager(['none']);
            manager.enable('ext-test', true, '/');
            expect(manager.isEnabled('ext-test', '/path/to/dir')).toBe(false);
            // Double check that it would have been enabled otherwise
            expect(new ExtensionEnablementManager().isEnabled('ext-test', '/')).toBe(true);
        });
    });
    describe('validateExtensionOverrides', () => {
        let coreEventsEmitSpy;
        beforeEach(() => {
            coreEventsEmitSpy = vi.spyOn(coreEvents, 'emitFeedback');
        });
        afterEach(() => {
            coreEventsEmitSpy.mockRestore();
        });
        it('should not log an error if enabledExtensionNamesOverride is empty', () => {
            const manager = new ExtensionEnablementManager([]);
            manager.validateExtensionOverrides([]);
            expect(coreEventsEmitSpy).not.toHaveBeenCalled();
        });
        it('should not log an error if all enabledExtensionNamesOverride are valid', () => {
            const manager = new ExtensionEnablementManager(['ext-one', 'ext-two']);
            const extensions = [
                { name: 'ext-one' },
                { name: 'ext-two' },
            ];
            manager.validateExtensionOverrides(extensions);
            expect(coreEventsEmitSpy).not.toHaveBeenCalled();
        });
        it('should log an error for each invalid extension name in enabledExtensionNamesOverride', () => {
            const manager = new ExtensionEnablementManager([
                'ext-one',
                'ext-invalid',
                'ext-another-invalid',
            ]);
            const extensions = [
                { name: 'ext-one' },
                { name: 'ext-two' },
            ];
            manager.validateExtensionOverrides(extensions);
            expect(coreEventsEmitSpy).toHaveBeenCalledTimes(2);
            expect(coreEventsEmitSpy).toHaveBeenCalledWith('error', 'Extension not found: ext-invalid');
            expect(coreEventsEmitSpy).toHaveBeenCalledWith('error', 'Extension not found: ext-another-invalid');
        });
        it('should not log an error if "none" is in enabledExtensionNamesOverride', () => {
            const manager = new ExtensionEnablementManager(['none']);
            manager.validateExtensionOverrides([]);
            expect(coreEventsEmitSpy).not.toHaveBeenCalled();
        });
    });
});
describe('Override', () => {
    it('should create an override from input', () => {
        const override = Override.fromInput('/path/to/dir', true);
        expect(override.baseRule).toBe(`/path/to/dir/`);
        expect(override.isDisable).toBe(false);
        expect(override.includeSubdirs).toBe(true);
    });
    it('should create a disable override from input', () => {
        const override = Override.fromInput('!/path/to/dir', false);
        expect(override.baseRule).toBe(`/path/to/dir/`);
        expect(override.isDisable).toBe(true);
        expect(override.includeSubdirs).toBe(false);
    });
    it('should create an override from a file rule', () => {
        const override = Override.fromFileRule('/path/to/dir');
        expect(override.baseRule).toBe('/path/to/dir');
        expect(override.isDisable).toBe(false);
        expect(override.includeSubdirs).toBe(false);
    });
    it('should create a disable override from a file rule', () => {
        const override = Override.fromFileRule('!/path/to/dir/');
        expect(override.isDisable).toBe(true);
        expect(override.baseRule).toBe('/path/to/dir/');
        expect(override.includeSubdirs).toBe(false);
    });
    it('should create an override with subdirs from a file rule', () => {
        const override = Override.fromFileRule('/path/to/dir/*');
        expect(override.baseRule).toBe('/path/to/dir/');
        expect(override.isDisable).toBe(false);
        expect(override.includeSubdirs).toBe(true);
    });
    it('should correctly identify conflicting overrides', () => {
        const override1 = Override.fromInput('/path/to/dir', true);
        const override2 = Override.fromInput('/path/to/dir', false);
        expect(override1.conflictsWith(override2)).toBe(true);
    });
    it('should correctly identify non-conflicting overrides', () => {
        const override1 = Override.fromInput('/path/to/dir', true);
        const override2 = Override.fromInput('/path/to/another/dir', true);
        expect(override1.conflictsWith(override2)).toBe(false);
    });
    it('should correctly identify equal overrides', () => {
        const override1 = Override.fromInput('/path/to/dir', true);
        const override2 = Override.fromInput('/path/to/dir', true);
        expect(override1.isEqualTo(override2)).toBe(true);
    });
    it('should correctly identify unequal overrides', () => {
        const override1 = Override.fromInput('/path/to/dir', true);
        const override2 = Override.fromInput('!/path/to/dir', true);
        expect(override1.isEqualTo(override2)).toBe(false);
    });
    it('should generate the correct regex', () => {
        const override = Override.fromInput('/path/to/dir', true);
        const regex = override.asRegex();
        expect(regex.test('/path/to/dir/')).toBe(true);
        expect(regex.test('/path/to/dir/subdir')).toBe(true);
        expect(regex.test('/path/to/another/dir')).toBe(false);
    });
    it('should correctly identify child overrides', () => {
        const parent = Override.fromInput('/path/to/dir', true);
        const child = Override.fromInput('/path/to/dir/subdir', false);
        expect(child.isChildOf(parent)).toBe(true);
    });
    it('should correctly identify child overrides with glob', () => {
        const parent = Override.fromInput('/path/to/dir/*', true);
        const child = Override.fromInput('/path/to/dir/subdir', false);
        expect(child.isChildOf(parent)).toBe(true);
    });
    it('should correctly identify non-child overrides', () => {
        const parent = Override.fromInput('/path/to/dir', true);
        const other = Override.fromInput('/path/to/another/dir', false);
        expect(other.isChildOf(parent)).toBe(false);
    });
    it('should generate the correct output string', () => {
        const override = Override.fromInput('/path/to/dir', true);
        expect(override.output()).toBe(`/path/to/dir/*`);
    });
    it('should generate the correct output string for a disable override', () => {
        const override = Override.fromInput('!/path/to/dir', false);
        expect(override.output()).toBe(`!/path/to/dir/`);
    });
    it('should disable a path based on a disable override rule', () => {
        const override = Override.fromInput('!/path/to/dir', false);
        expect(override.output()).toBe(`!/path/to/dir/`);
    });
});
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