/**
 * @license
 * Copyright 2025 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import { describe, it, expect, beforeEach, afterEach } from 'vitest';
import { PolicyDecision, ApprovalMode, PRIORITY_SUBAGENT_TOOL, } from './types.js';
import * as fs from 'node:fs/promises';
import * as path from 'node:path';
import * as os from 'node:os';
import { fileURLToPath } from 'node:url';
import { loadPoliciesFromToml, validateMcpPolicyToolNames, } from './toml-loader.js';
import { PolicyEngine } from './policy-engine.js';
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
/** Returns only errors (severity !== 'warning') from a PolicyLoadResult. */
function getErrors(result) {
    return result.errors.filter((e) => e.severity !== 'warning');
}
/** Returns only warnings (severity === 'warning') from a PolicyLoadResult. */
function getWarnings(result) {
    return result.errors.filter((e) => e.severity === 'warning');
}
describe('policy-toml-loader', () => {
    let tempDir;
    beforeEach(async () => {
        tempDir = await fs.mkdtemp(path.join(os.tmpdir(), 'policy-test-'));
    });
    afterEach(async () => {
        if (tempDir) {
            await fs.rm(tempDir, {
                recursive: true,
                force: true,
                maxRetries: 3,
                retryDelay: 10,
            });
        }
    });
    async function runLoadPoliciesFromToml(tomlContent, fileName = 'test.toml') {
        await fs.writeFile(path.join(tempDir, fileName), tomlContent);
        const getPolicyTier = (_dir) => 1;
        return loadPoliciesFromToml([tempDir], getPolicyTier);
    }
    describe('loadPoliciesFromToml', () => {
        it('should load and parse a simple policy file', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "glob"
decision = "allow"
priority = 100
`);
            expect(result.rules).toHaveLength(1);
            expect(result.rules[0]).toEqual({
                toolName: 'glob',
                decision: PolicyDecision.ALLOW,
                priority: 1.1, // tier 1 + 100/1000
                source: 'Default: test.toml',
            });
            expect(result.checkers).toHaveLength(0);
            expect(result.errors).toHaveLength(0);
        });
        it('should expand commandPrefix array to multiple rules', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "run_shell_command"
commandPrefix = ["git status", "git log"]
decision = "allow"
priority = 100
`);
            expect(result.rules).toHaveLength(2);
            expect(result.rules[0].toolName).toBe('run_shell_command');
            expect(result.rules[1].toolName).toBe('run_shell_command');
            expect(result.rules[0].argsPattern?.test('{"command":"git status"}')).toBe(true);
            expect(result.rules[1].argsPattern?.test('{"command":"git log"}')).toBe(true);
            expect(result.errors).toHaveLength(0);
        });
        it('should parse toolAnnotations from TOML', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "annotated-tool"
toolAnnotations = { readOnlyHint = true, custom = "value" }
decision = "allow"
priority = 70
`);
            expect(result.rules).toHaveLength(1);
            expect(result.rules[0].toolName).toBe('annotated-tool');
            expect(result.rules[0].toolAnnotations).toEqual({
                readOnlyHint: true,
                custom: 'value',
            });
            expect(result.errors).toHaveLength(0);
        });
        it('should transform mcpName = "*" to wildcard toolName', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "*"
mcpName = "*"
decision = "ask_user"
priority = 10
`);
            expect(result.rules).toHaveLength(1);
            expect(result.rules[0].toolName).toBe('mcp_*');
            expect(result.rules[0].decision).toBe(PolicyDecision.ASK_USER);
            expect(result.errors).toHaveLength(0);
        });
        it('should transform mcpName = "*" and specific toolName to wildcard prefix', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
mcpName = "*"
toolName = "search"
decision = "allow"
priority = 10
`);
            expect(result.rules).toHaveLength(1);
            expect(result.rules[0].toolName).toBe('mcp_*_search');
            expect(result.errors).toHaveLength(0);
        });
        it('should transform commandRegex to argsPattern', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "run_shell_command"
commandRegex = "git (status|log).*"
decision = "allow"
priority = 100
`);
            expect(result.rules).toHaveLength(1);
            expect(result.rules[0].argsPattern?.test('{"command":"git status"}')).toBe(true);
            expect(result.rules[0].argsPattern?.test('{"command":"git log --all"}')).toBe(true);
            expect(result.rules[0].argsPattern?.test('{"command":"git branch"}')).toBe(false);
            expect(result.errors).toHaveLength(0);
        });
        it('should NOT match if ^ is used in commandRegex because it matches against full JSON', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "run_shell_command"
commandRegex = "^git status"
decision = "allow"
priority = 100
`);
            expect(result.rules).toHaveLength(1);
            // The generated pattern is "command":"^git status
            // This will NOT match '{"command":"git status"}' because of the '{"' at the start.
            expect(result.rules[0].argsPattern?.test('{"command":"git status"}')).toBe(false);
            expect(result.errors).toHaveLength(0);
        });
        it('should expand toolName array', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = ["glob", "grep", "read"]
decision = "allow"
priority = 100
`);
            expect(result.rules).toHaveLength(3);
            expect(result.rules.map((r) => r.toolName)).toEqual([
                'glob',
                'grep',
                'read',
            ]);
            expect(getErrors(result)).toHaveLength(0);
        });
        it('should transform mcpName to composite toolName', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
mcpName = "google-workspace"
toolName = ["calendar.list", "calendar.get"]
decision = "allow"
priority = 100
`);
            expect(result.rules).toHaveLength(2);
            expect(result.rules[0].toolName).toBe('mcp_google-workspace_calendar.list');
            expect(result.rules[1].toolName).toBe('mcp_google-workspace_calendar.get');
            expect(result.errors).toHaveLength(0);
        });
        it('should NOT filter rules by mode at load time but preserve modes property', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "glob"
decision = "allow"
priority = 100
modes = ["default", "yolo"]

[[rule]]
toolName = "grep"
decision = "allow"
priority = 100
modes = ["yolo"]
`);
            // Both rules should be included
            expect(result.rules).toHaveLength(2);
            expect(result.rules[0].toolName).toBe('glob');
            expect(result.rules[0].modes).toEqual(['default', 'yolo']);
            expect(result.rules[1].toolName).toBe('grep');
            expect(result.rules[1].modes).toEqual(['yolo']);
            expect(getErrors(result)).toHaveLength(0);
        });
        it('should parse and transform allow_redirection property', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "run_shell_command"
commandPrefix = "echo"
decision = "allow"
priority = 100
allow_redirection = true
`);
            expect(result.rules).toHaveLength(1);
            expect(result.rules[0].allowRedirection).toBe(true);
            expect(result.errors).toHaveLength(0);
        });
        it('should parse and transform allowRedirection property (camelCase)', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "run_shell_command"
commandPrefix = "echo"
decision = "allow"
priority = 100
allowRedirection = true
`);
            expect(result.rules).toHaveLength(1);
            expect(result.rules[0].allowRedirection).toBe(true);
            expect(result.errors).toHaveLength(0);
        });
        it('should parse deny_message property', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "rm"
decision = "deny"
priority = 100
deny_message = "Deletion is permanent"
`);
            expect(result.rules).toHaveLength(1);
            expect(result.rules[0].decision).toBe(PolicyDecision.DENY);
            expect(result.rules[0].denyMessage).toBe('Deletion is permanent');
            expect(getErrors(result)).toHaveLength(0);
        });
        it('should parse denyMessage property (camelCase)', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "rm"
decision = "deny"
priority = 100
denyMessage = "Deletion is permanent"
`);
            expect(result.rules).toHaveLength(1);
            expect(result.rules[0].decision).toBe(PolicyDecision.DENY);
            expect(result.rules[0].denyMessage).toBe('Deletion is permanent');
            expect(getErrors(result)).toHaveLength(0);
        });
        it('should support modes property for Tier 4 and Tier 5 policies', async () => {
            await fs.writeFile(path.join(tempDir, 'tier4.toml'), `
[[rule]]
toolName = "tier4-tool"
decision = "allow"
priority = 100
modes = ["autoEdit"]
`);
            const getPolicyTier4 = (_dir) => 4; // Tier 4 (User)
            const result4 = await loadPoliciesFromToml([tempDir], getPolicyTier4);
            expect(result4.rules).toHaveLength(1);
            expect(result4.rules[0].toolName).toBe('tier4-tool');
            expect(result4.rules[0].modes).toEqual(['autoEdit']);
            expect(result4.rules[0].source).toBe('User: tier4.toml');
            const getPolicyTier2 = (_dir) => 2; // Tier 2 (Extension)
            const result2 = await loadPoliciesFromToml([tempDir], getPolicyTier2);
            expect(result2.rules[0].source).toBe('Extension: tier4.toml');
            const getPolicyTier5 = (_dir) => 5; // Tier 5 (Admin)
            const result5 = await loadPoliciesFromToml([tempDir], getPolicyTier5);
            expect(result5.rules[0].source).toBe('Admin: tier4.toml');
            expect(result5.errors).toHaveLength(0);
        });
        it('should handle TOML parse errors', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]
toolName = "glob"
decision = "allow"
priority = 100
`);
            expect(result.rules).toHaveLength(0);
            expect(result.errors).toHaveLength(1);
            expect(result.errors[0].errorType).toBe('toml_parse');
            expect(result.errors[0].fileName).toBe('test.toml');
        });
        it('should handle schema validation errors', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "glob"
priority = 100
`);
            expect(result.rules).toHaveLength(0);
            expect(result.errors).toHaveLength(1);
            expect(result.errors[0].errorType).toBe('schema_validation');
            expect(result.errors[0].details).toContain('decision');
        });
        it('should reject commandPrefix without run_shell_command', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "glob"
commandPrefix = "git status"
decision = "allow"
priority = 100
`);
            expect(result.errors).toHaveLength(1);
            expect(result.errors[0].errorType).toBe('rule_validation');
            expect(result.errors[0].details).toContain('run_shell_command');
        });
        it('should reject commandPrefix + argsPattern combination', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "run_shell_command"
commandPrefix = "git status"
argsPattern = "test"
decision = "allow"
priority = 100
`);
            expect(result.errors).toHaveLength(1);
            expect(result.errors[0].errorType).toBe('rule_validation');
            expect(result.errors[0].details).toContain('mutually exclusive');
        });
        it('should handle invalid regex patterns', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "run_shell_command"
commandRegex = "git (status|branch"
decision = "allow"
priority = 100
`);
            expect(result.rules).toHaveLength(0);
            expect(result.errors).toHaveLength(1);
            expect(result.errors[0].errorType).toBe('regex_compilation');
            expect(result.errors[0].details).toContain('git (status|branch');
        });
        it('should escape regex special characters in commandPrefix', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "run_shell_command"
commandPrefix = "git log *.txt"
decision = "allow"
priority = 100
`);
            expect(result.rules).toHaveLength(1);
            // The regex should have escaped the * and .
            expect(result.rules[0].argsPattern?.test('{"command":"git log file.txt"}')).toBe(false);
            expect(result.rules[0].argsPattern?.test('{"command":"git log *.txt"}')).toBe(true);
            expect(result.errors).toHaveLength(0);
        });
        it('should handle a mix of valid and invalid policy files', async () => {
            await fs.writeFile(path.join(tempDir, 'valid.toml'), `
[[rule]]
toolName = "glob"
decision = "allow"
priority = 100
`);
            await fs.writeFile(path.join(tempDir, 'invalid.toml'), `
[[rule]]
toolName = "grep"
decision = "allow"
priority = -1
`);
            const getPolicyTier = (_dir) => 1;
            const result = await loadPoliciesFromToml([tempDir], getPolicyTier);
            expect(result.rules).toHaveLength(1);
            expect(result.rules[0].toolName).toBe('glob');
            expect(result.errors).toHaveLength(1);
            expect(result.errors[0].fileName).toBe('invalid.toml');
            expect(result.errors[0].errorType).toBe('schema_validation');
        });
        it('should transform safety checker priorities based on tier', async () => {
            const result = await runLoadPoliciesFromToml(`
[[safety_checker]]
toolName = "write_file"
priority = 100
[safety_checker.checker]
type = "in-process"
name = "allowed-path"
`);
            expect(result.checkers).toHaveLength(1);
            expect(result.checkers[0].priority).toBe(1.1); // tier 1 + 100/1000
            expect(result.checkers[0].source).toBe('Default: test.toml');
        });
    });
    describe('Negative Tests', () => {
        it('should return a schema_validation error if toolName is missing in safety_checker', async () => {
            const result = await runLoadPoliciesFromToml(`
[[safety_checker]]
priority = 100
[safety_checker.checker]
type = "in-process"
name = "allowed-path"
`);
            expect(result.errors).toHaveLength(1);
            const error = result.errors[0];
            expect(error.errorType).toBe('schema_validation');
            expect(error.details).toContain('toolName');
            expect(error.details).toContain('Invalid input');
        });
        it('should return a schema_validation error if priority is missing', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "test"
decision = "allow"
`);
            expect(result.errors).toHaveLength(1);
            const error = result.errors[0];
            expect(error.errorType).toBe('schema_validation');
            expect(error.details).toContain('priority');
        });
        it('should return a schema_validation error if priority is a float', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "test"
decision = "allow"
priority = 1.5
`);
            expect(result.errors).toHaveLength(1);
            const error = result.errors[0];
            expect(error.errorType).toBe('schema_validation');
            expect(error.details).toContain('priority');
            expect(error.details).toContain('integer');
        });
        it('should return a schema_validation error if priority is negative', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "test"
decision = "allow"
priority = -1
`);
            expect(result.errors).toHaveLength(1);
            const error = result.errors[0];
            expect(error.errorType).toBe('schema_validation');
            expect(error.details).toContain('priority');
            expect(error.details).toContain('>= 0');
        });
        it('should return a schema_validation error if priority is much lower than 0', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "test"
decision = "allow"
priority = -9999
`);
            expect(result.errors).toHaveLength(1);
            const error = result.errors[0];
            expect(error.errorType).toBe('schema_validation');
            expect(error.details).toContain('priority');
            expect(error.details).toContain('>= 0');
        });
        it('should return a schema_validation error if priority is >= 1000', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "test"
decision = "allow"
priority = 1000
`);
            expect(result.errors).toHaveLength(1);
            const error = result.errors[0];
            expect(error.errorType).toBe('schema_validation');
            expect(error.details).toContain('priority');
            expect(error.details).toContain('<= 999');
        });
        it('should return a schema_validation error if priority is much higher than 1000', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "test"
decision = "allow"
priority = 9999
`);
            expect(result.errors).toHaveLength(1);
            const error = result.errors[0];
            expect(error.errorType).toBe('schema_validation');
            expect(error.details).toContain('priority');
            expect(error.details).toContain('<= 999');
        });
        it('should return a schema_validation error if decision is invalid', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "test"
decision = "maybe"
priority = 100
`);
            expect(result.errors).toHaveLength(1);
            const error = result.errors[0];
            expect(error.errorType).toBe('schema_validation');
            expect(error.details).toContain('decision');
        });
        it('should return a schema_validation error if toolName is missing', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
decision = "allow"
priority = 100
`);
            expect(result.errors).toHaveLength(1);
            const error = result.errors[0];
            expect(error.errorType).toBe('schema_validation');
            expect(error.details).toContain('toolName');
            expect(error.details).toContain('Invalid input');
        });
        it('should return a schema_validation error if toolName is not a string or array', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = 123
decision = "allow"
priority = 100
`);
            expect(result.errors).toHaveLength(1);
            const error = result.errors[0];
            expect(error.errorType).toBe('schema_validation');
            expect(error.details).toContain('toolName');
        });
        it('should return a rule_validation error if commandRegex is used with wrong toolName', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "not_shell"
commandRegex = ".*"
decision = "allow"
priority = 100
`);
            expect(getErrors(result)).toHaveLength(1);
            const error = getErrors(result)[0];
            expect(error.errorType).toBe('rule_validation');
            expect(error.details).toContain('run_shell_command');
        });
        it('should return a rule_validation error if commandPrefix and commandRegex are combined', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "run_shell_command"
commandPrefix = "git"
commandRegex = ".*"
decision = "allow"
priority = 100
`);
            expect(result.errors).toHaveLength(1);
            const error = result.errors[0];
            expect(error.errorType).toBe('rule_validation');
            expect(error.details).toContain('mutually exclusive');
        });
        it('should return a regex_compilation error for invalid argsPattern', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "test"
argsPattern = "([a-z)"
decision = "allow"
priority = 100
`);
            expect(getErrors(result)).toHaveLength(1);
            const error = getErrors(result)[0];
            expect(error.errorType).toBe('regex_compilation');
            expect(error.message).toBe('Invalid regex pattern');
        });
        it('should load an individual policy file', async () => {
            const filePath = path.join(tempDir, 'single-rule.toml');
            await fs.writeFile(filePath, '[[rule]]\ntoolName = "test-tool"\ndecision = "allow"\npriority = 500\n');
            const getPolicyTier = (_dir) => 1;
            const result = await loadPoliciesFromToml([filePath], getPolicyTier);
            expect(getErrors(result)).toHaveLength(0);
            expect(result.rules).toHaveLength(1);
            expect(result.rules[0].toolName).toBe('test-tool');
            expect(result.rules[0].decision).toBe(PolicyDecision.ALLOW);
        });
        it('should return a file_read error if stat fails with something other than ENOENT', async () => {
            // We can't easily trigger a stat error other than ENOENT without mocks,
            // but we can test that it handles it.
            // For this test, we'll just check that it handles a non-existent file gracefully (no error)
            const filePath = path.join(tempDir, 'non-existent.toml');
            const getPolicyTier = (_dir) => 1;
            const result = await loadPoliciesFromToml([filePath], getPolicyTier);
            expect(result.errors).toHaveLength(0);
            expect(result.rules).toHaveLength(0);
        });
    });
    describe('Tool name validation', () => {
        it('should warn for unrecognized tool names with suggestions', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "grob"
decision = "allow"
priority = 100
`);
            const warnings = getWarnings(result);
            expect(warnings).toHaveLength(1);
            expect(warnings[0].errorType).toBe('tool_name_warning');
            expect(warnings[0].severity).toBe('warning');
            expect(warnings[0].details).toContain('Unrecognized tool name "grob"');
            expect(warnings[0].details).toContain('glob');
            // Rules should still load despite warnings
            expect(result.rules).toHaveLength(1);
            expect(result.rules[0].toolName).toBe('grob');
        });
        it('should not warn for valid built-in tool names', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "glob"
decision = "allow"
priority = 100

[[rule]]
toolName = "read_file"
decision = "allow"
priority = 100
`);
            expect(getWarnings(result)).toHaveLength(0);
            expect(getErrors(result)).toHaveLength(0);
            expect(result.rules).toHaveLength(2);
        });
        it('should not warn for wildcard "*"', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "*"
decision = "allow"
priority = 100
`);
            expect(getWarnings(result)).toHaveLength(0);
            expect(getErrors(result)).toHaveLength(0);
        });
        it('should not warn for MCP format tool names', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "mcp_my-server_my-tool"
decision = "allow"
priority = 100

[[rule]]
toolName = "mcp_my-server_*"
decision = "allow"
priority = 100
`);
            expect(getWarnings(result)).toHaveLength(0);
            expect(getErrors(result)).toHaveLength(0);
        });
        it('should not warn when mcpName is present (skips validation)', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
mcpName = "my-server"
toolName = "nonexistent"
decision = "allow"
priority = 100
`);
            expect(getWarnings(result)).toHaveLength(0);
            expect(getErrors(result)).toHaveLength(0);
        });
        it('should not warn for legacy aliases', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "search_file_content"
decision = "allow"
priority = 100
`);
            expect(getWarnings(result)).toHaveLength(0);
            expect(getErrors(result)).toHaveLength(0);
        });
        it('should not warn for discovered tool prefix', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "discovered_tool_my_custom_tool"
decision = "allow"
priority = 100
`);
            expect(getWarnings(result)).toHaveLength(0);
            expect(getErrors(result)).toHaveLength(0);
        });
        it('should warn for each invalid name in a toolName array', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = ["grob", "glob", "replce"]
decision = "allow"
priority = 100
`);
            const warnings = getWarnings(result);
            expect(warnings).toHaveLength(2);
            expect(warnings[0].details).toContain('"grob"');
            expect(warnings[1].details).toContain('"replce"');
            // All rules still load
            expect(result.rules).toHaveLength(3);
        });
        it('should not warn for names far from any built-in (dynamic/agent tools)', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "delegate_to_agent"
decision = "allow"
priority = 100

[[rule]]
toolName = "my_custom_tool"
decision = "allow"
priority = 100
`);
            expect(getWarnings(result)).toHaveLength(0);
            expect(getErrors(result)).toHaveLength(0);
            expect(result.rules).toHaveLength(2);
        });
        it('should not warn for catch-all rules (toolName = "*")', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "*"
decision = "deny"
priority = 100
`);
            expect(getWarnings(result)).toHaveLength(0);
            expect(getErrors(result)).toHaveLength(0);
            expect(result.rules).toHaveLength(1);
        });
        it('should still load rules even with warnings', async () => {
            const result = await runLoadPoliciesFromToml(`
[[rule]]
toolName = "wrte_file"
decision = "deny"
priority = 50

[[rule]]
toolName = "glob"
decision = "allow"
priority = 100
`);
            expect(getWarnings(result)).toHaveLength(1);
            expect(getErrors(result)).toHaveLength(0);
            expect(result.rules).toHaveLength(2);
            expect(result.rules[0].toolName).toBe('wrte_file');
            expect(result.rules[1].toolName).toBe('glob');
        });
    });
    describe('Built-in Plan Mode Policy', () => {
        it('should allow MCP tools with readOnlyHint annotation in Plan Mode (ASK_USER, not DENY)', async () => {
            const planTomlPath = path.resolve(__dirname, 'policies', 'plan.toml');
            const fileContent = await fs.readFile(planTomlPath, 'utf-8');
            const tempPolicyDir = await fs.mkdtemp(path.join(os.tmpdir(), 'plan-annotation-test-'));
            try {
                await fs.writeFile(path.join(tempPolicyDir, 'plan.toml'), fileContent);
                const getPolicyTier = () => 1; // Default tier
                // 1. Load the actual Plan Mode policies
                const result = await loadPoliciesFromToml([tempPolicyDir], getPolicyTier);
                expect(result.errors).toHaveLength(0);
                // Verify annotation rule was loaded correctly
                const annotationRule = result.rules.find((r) => r.toolAnnotations !== undefined);
                expect(annotationRule, 'Should have loaded a rule with toolAnnotations').toBeDefined();
                expect(annotationRule.toolName).toBe('mcp_*');
                expect(annotationRule.mcpName).toBe('*');
                expect(annotationRule.toolAnnotations).toEqual({
                    readOnlyHint: true,
                });
                expect(annotationRule.decision).toBe(PolicyDecision.ASK_USER);
                // Priority 50 in tier 1 => 1.050
                expect(annotationRule.priority).toBe(1.05);
                // Verify deny rule was loaded correctly
                const denyRule = result.rules.find((r) => r.decision === PolicyDecision.DENY &&
                    r.toolName === '*' &&
                    r.denyMessage?.includes('Plan Mode'));
                expect(denyRule, 'Should have loaded the catch-all deny rule').toBeDefined();
                // Priority 40 in tier 1 => 1.040
                expect(denyRule.priority).toBe(1.04);
                // 2. Initialize Policy Engine in Plan Mode
                const engine = new PolicyEngine({
                    rules: result.rules,
                    approvalMode: ApprovalMode.PLAN,
                });
                // 3. MCP tool with readOnlyHint=true and serverName should get ASK_USER
                const askResult = await engine.check({ name: 'github__list_issues' }, 'github', { readOnlyHint: true });
                expect(askResult.decision, 'MCP tool with readOnlyHint=true should be ASK_USER, not DENY').toBe(PolicyDecision.ASK_USER);
                // 4. MCP tool WITHOUT annotations should be DENIED
                const denyResult = await engine.check({ name: 'mcp_github_create_issue' }, 'github', undefined);
                expect(denyResult.decision, 'MCP tool without annotations should be DENIED in Plan Mode').toBe(PolicyDecision.DENY);
                // 5. MCP tool with readOnlyHint=false should also be DENIED
                const denyResult2 = await engine.check({ name: 'mcp_github_delete_issue' }, 'github', { readOnlyHint: false });
                expect(denyResult2.decision, 'MCP tool with readOnlyHint=false should be DENIED in Plan Mode').toBe(PolicyDecision.DENY);
                // 6. Test with qualified tool name format (mcp_server_tool) but no separate serverName
                const qualifiedResult = await engine.check({ name: 'mcp_github_list_repos' }, undefined, { readOnlyHint: true });
                expect(qualifiedResult.decision, 'Qualified MCP tool name with readOnlyHint=true should be ASK_USER even without separate serverName').toBe(PolicyDecision.ASK_USER);
                // 7. Non-MCP tool (no server context) should be DENIED despite having annotations
                const builtinResult = await engine.check({ name: 'some_random_tool' }, undefined, { readOnlyHint: true });
                expect(builtinResult.decision, 'Non-MCP tool should be DENIED even with readOnlyHint (no server context for *__* match)').toBe(PolicyDecision.DENY);
            }
            finally {
                await fs.rm(tempPolicyDir, { recursive: true, force: true });
            }
        });
        it('should override default subagent rules when in Plan Mode for unknown subagents', async () => {
            const planTomlPath = path.resolve(__dirname, 'policies', 'plan.toml');
            const readOnlyTomlPath = path.resolve(__dirname, 'policies', 'read-only.toml');
            const planContent = await fs.readFile(planTomlPath, 'utf-8');
            const readOnlyContent = await fs.readFile(readOnlyTomlPath, 'utf-8');
            const tempPolicyDir = await fs.mkdtemp(path.join(os.tmpdir(), 'plan-policy-test-'));
            try {
                await fs.writeFile(path.join(tempPolicyDir, 'plan.toml'), planContent);
                await fs.writeFile(path.join(tempPolicyDir, 'read-only.toml'), readOnlyContent);
                const getPolicyTier = () => 1; // Default tier
                // 1. Load the actual Plan Mode policies
                const result = await loadPoliciesFromToml([tempPolicyDir], getPolicyTier);
                // 2. Initialize Policy Engine with these rules
                const engine = new PolicyEngine({
                    rules: result.rules,
                    approvalMode: ApprovalMode.PLAN,
                });
                // 3. Simulate an unknown Subagent being registered (Dynamic Rule)
                engine.addRule({
                    toolName: 'invoke_agent',
                    argsPattern: /"agent_name":\s*"unknown_subagent"/,
                    decision: PolicyDecision.ALLOW,
                    priority: PRIORITY_SUBAGENT_TOOL,
                    source: 'AgentRegistry (Dynamic)',
                });
                // 4. Verify Behavior:
                // The Plan Mode "Catch-All Deny" (from plan.toml) should override the Subagent Allow
                // Plan Mode Deny (1.04) > Subagent Allow (1.03)
                const checkResult = await engine.check({ name: 'invoke_agent', args: { agent_name: 'unknown_subagent' } }, undefined);
                expect(checkResult.decision, 'Unknown subagent should be DENIED in Plan Mode').toBe(PolicyDecision.DENY);
                // 5. Verify Explicit Allows still work
                // e.g. 'read_file' should be allowed because its priority in read-only.toml (50) is higher than the deny (40)
                const readResult = await engine.check({ name: 'read_file' }, undefined);
                expect(readResult.decision, 'Explicitly allowed tools (read_file) should be ALLOWED in Plan Mode').toBe(PolicyDecision.ALLOW);
                // 6. Verify Built-in Research Subagents are ALLOWED
                // codebase_investigator is priority 50 in read-only.toml
                const codebaseResult = await engine.check({
                    name: 'invoke_agent',
                    args: { agent_name: 'codebase_investigator' },
                }, undefined);
                expect(codebaseResult.decision, 'codebase_investigator should be ALLOWED in Plan Mode').toBe(PolicyDecision.ALLOW);
                const cliHelpResult = await engine.check({ name: 'invoke_agent', args: { agent_name: 'cli_help' } }, undefined);
                expect(cliHelpResult.decision, 'cli_help should be ALLOWED in Plan Mode').toBe(PolicyDecision.ALLOW);
            }
            finally {
                await fs.rm(tempPolicyDir, { recursive: true, force: true });
            }
        });
    });
    describe('validateMcpPolicyToolNames', () => {
        it('should warn for MCP tool names that are likely typos', () => {
            const warnings = validateMcpPolicyToolNames('google-workspace', ['people.getMe', 'calendar.list', 'calendar.get'], [
                {
                    toolName: 'mcp_google-workspace_people.getxMe',
                    mcpName: 'google-workspace',
                    source: 'User: workspace.toml',
                },
            ]);
            expect(warnings).toHaveLength(1);
            expect(warnings[0]).toContain('people.getxMe');
            expect(warnings[0]).toContain('google-workspace');
            expect(warnings[0]).toContain('people.getMe');
        });
        it('should not warn for matching MCP tool names', () => {
            const warnings = validateMcpPolicyToolNames('google-workspace', ['people.getMe', 'calendar.list'], [
                {
                    toolName: 'mcp_google-workspace_people.getMe',
                    mcpName: 'google-workspace',
                },
                {
                    toolName: 'mcp_google-workspace_calendar.list',
                    mcpName: 'google-workspace',
                },
            ]);
            expect(warnings).toHaveLength(0);
        });
        it('should not warn for wildcard MCP rules', () => {
            const warnings = validateMcpPolicyToolNames('my-server', ['tool1', 'tool2'], [{ toolName: 'mcp_my-server_*', mcpName: 'my-server' }]);
            expect(warnings).toHaveLength(0);
        });
        it('should not warn for rules targeting other servers', () => {
            const warnings = validateMcpPolicyToolNames('server-a', ['tool1'], [{ toolName: 'mcp_server-b_toolx', mcpName: 'server-b' }]);
            expect(warnings).toHaveLength(0);
        });
        it('should not warn for tool names far from any discovered tool', () => {
            const warnings = validateMcpPolicyToolNames('my-server', ['tool1', 'tool2'], [
                {
                    toolName: 'mcp_my-server_completely_different_name',
                    mcpName: 'my-server',
                },
            ]);
            expect(warnings).toHaveLength(0);
        });
        it('should skip wildcard rules (matching all tools)', () => {
            const warnings = validateMcpPolicyToolNames('my-server', ['tool1'], [{ toolName: '*', mcpName: 'my-server' }]);
            expect(warnings).toHaveLength(0);
        });
        it('should include source in warning when available', () => {
            const warnings = validateMcpPolicyToolNames('my-server', ['tool1'], [
                {
                    toolName: 'mcp_my-server_tol1',
                    mcpName: 'my-server',
                    source: 'User: custom.toml',
                },
            ]);
            expect(warnings).toHaveLength(1);
            expect(warnings[0]).toContain('User: custom.toml');
        });
    });
});
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