//
//  FilePermissionTests.swift
//  FileOtterTests
//
//  Created by Sami Samhuri on 2025-08-19.
//

@testable import FileOtter
import XCTest

final class FilePermissionTests: XCTestCase {
    var tempDir: URL!
    var testFile: URL!
    var readOnlyFile: URL!
    var executableFile: URL!
    
    override func setUpWithError() throws {
        tempDir = URL.temporaryDirectory
            .appendingPathComponent("FilePermissionTests-\(UUID().uuidString)")
        try FileManager.default.createDirectory(at: tempDir, withIntermediateDirectories: true)
        
        testFile = tempDir.appendingPathComponent("test.txt")
        try "Test content".write(to: testFile, atomically: true, encoding: .utf8)
        
        readOnlyFile = tempDir.appendingPathComponent("readonly.txt")
        try "Read only".write(to: readOnlyFile, atomically: true, encoding: .utf8)
        
        executableFile = tempDir.appendingPathComponent("script.sh")
        try "#!/bin/sh\necho hello".write(to: executableFile, atomically: true, encoding: .utf8)
    }
    
    override func tearDownWithError() throws {
        if FileManager.default.fileExists(atPath: tempDir.path) {
            try FileManager.default.removeItem(at: tempDir)
        }
    }
    
    // MARK: - Basic Permission Tests
    
    func testIsReadable() throws {
        // TODO: Implement
        // File.isReadable(url) returns true for readable files
    }
    
    func testIsWritable() throws {
        // TODO: Implement
        // File.isWritable(url) returns true for writable files
    }
    
    func testIsExecutable() throws {
        // TODO: Implement
        // File.isExecutable(url) returns true for executable files
    }
    
    func testIsExecutableForNonExecutable() throws {
        // TODO: Implement
        // File.isExecutable(url) returns false for non-executable
    }
    
    // MARK: - Ownership Tests
    
    func testIsOwned() throws {
        // TODO: Implement
        // File.isOwned(url) returns true for files owned by effective user
    }
    
    func testIsGroupOwned() throws {
        // TODO: Implement
        // File.isGroupOwned(url) returns true for files owned by effective group
    }
    
    // MARK: - World Permission Tests
    
    func testIsWorldReadable() throws {
        // TODO: Implement
        // File.isWorldReadable(url) returns permission bits if world readable
    }
    
    func testIsWorldReadableForPrivate() throws {
        // TODO: Implement
        // File.isWorldReadable(url) returns nil if not world readable
    }
    
    func testIsWorldWritable() throws {
        // TODO: Implement
        // File.isWorldWritable(url) returns permission bits if world writable
    }
    
    func testIsWorldWritableForProtected() throws {
        // TODO: Implement
        // File.isWorldWritable(url) returns nil if not world writable
    }
    
    // MARK: - Special Bit Tests
    
    func testIsSetuid() throws {
        // TODO: Implement
        // File.isSetuid(url) returns true if setuid bit is set
    }
    
    func testIsSetgid() throws {
        // TODO: Implement
        // File.isSetgid(url) returns true if setgid bit is set
    }
    
    func testIsSticky() throws {
        // TODO: Implement
        // File.isSticky(url) returns true if sticky bit is set
    }
    
    // MARK: - chmod Tests
    
    func testChmod() throws {
        // TODO: Implement
        // File.chmod(url, permissions) changes file permissions
    }
    
    func testChmodThrowsForNonExistent() throws {
        // TODO: Implement
    }
    
    func testLchmod() throws {
        // TODO: Implement
        // File.lchmod(url, permissions) changes symlink permissions
    }
    
    func testInstanceChmod() throws {
        // TODO: Implement
        // file.chmod(permissions) changes open file permissions
    }
    
    // MARK: - chown Tests
    
    func testChown() throws {
        // TODO: Implement
        // File.chown(url, owner, group) changes ownership
        // Note: May require special privileges
    }
    
    func testChownWithNilValues() throws {
        // TODO: Implement
        // nil owner or group means don't change that value
    }
    
    func testLchown() throws {
        // TODO: Implement
        // File.lchown(url, owner, group) changes symlink ownership
    }
    
    func testInstanceChown() throws {
        // TODO: Implement
        // file.chown(owner, group) changes open file ownership
    }
    
    // MARK: - umask Tests
    
    func testUmask() throws {
        // TODO: Implement
        // File.umask() returns current umask
    }
    
    func testUmaskSet() throws {
        // TODO: Implement
        // File.umask(mask) sets umask and returns previous value
    }
}