import codecs
import os
import shutil
import sys
import tempfile
from io import StringIO
from pathlib import Path
from unittest import TestCase

import git

from aider.coders import Coder
from aider.commands import Commands
from aider.dump import dump  # noqa: F401
from aider.io import InputOutput
from aider.models import Model
from aider.utils import ChdirTemporaryDirectory, GitTemporaryDirectory, make_repo


class TestCommands(TestCase):
    def setUp(self):
        self.original_cwd = os.getcwd()
        self.tempdir = tempfile.mkdtemp()
        os.chdir(self.tempdir)

        self.GPT35 = Model("gpt-3.5-turbo")

    def tearDown(self):
        os.chdir(self.original_cwd)
        shutil.rmtree(self.tempdir, ignore_errors=True)

    def test_cmd_add(self):
        # Initialize the Commands and InputOutput objects
        io = InputOutput(pretty=False, yes=True)
        from aider.coders import Coder

        coder = Coder.create(self.GPT35, None, io)
        commands = Commands(io, coder)

        # Call the cmd_add method with 'foo.txt' and 'bar.txt' as a single string
        commands.cmd_add("foo.txt bar.txt")

        # Check if both files have been created in the temporary directory
        self.assertTrue(os.path.exists("foo.txt"))
        self.assertTrue(os.path.exists("bar.txt"))

    def test_cmd_add_bad_glob(self):
        # https://github.com/paul-gauthier/aider/issues/293

        io = InputOutput(pretty=False, yes=False)
        from aider.coders import Coder

        coder = Coder.create(self.GPT35, None, io)
        commands = Commands(io, coder)

        commands.cmd_add("**.txt")

    def test_cmd_add_with_glob_patterns(self):
        # Initialize the Commands and InputOutput objects
        io = InputOutput(pretty=False, yes=True)
        from aider.coders import Coder

        coder = Coder.create(self.GPT35, None, io)
        commands = Commands(io, coder)

        # Create some test files
        with open("test1.py", "w") as f:
            f.write("print('test1')")
        with open("test2.py", "w") as f:
            f.write("print('test2')")
        with open("test.txt", "w") as f:
            f.write("test")

        # Call the cmd_add method with a glob pattern
        commands.cmd_add("*.py")

        # Check if the Python files have been added to the chat session
        self.assertIn(str(Path("test1.py").resolve()), coder.abs_fnames)
        self.assertIn(str(Path("test2.py").resolve()), coder.abs_fnames)

        # Check if the text file has not been added to the chat session
        self.assertNotIn(str(Path("test.txt").resolve()), coder.abs_fnames)

    def test_cmd_add_no_match(self):
        # yes=False means we will *not* create the file when it is not found
        io = InputOutput(pretty=False, yes=False)
        from aider.coders import Coder

        coder = Coder.create(self.GPT35, None, io)
        commands = Commands(io, coder)

        # Call the cmd_add method with a non-existent file pattern
        commands.cmd_add("*.nonexistent")

        # Check if no files have been added to the chat session
        self.assertEqual(len(coder.abs_fnames), 0)

    def test_cmd_add_no_match_but_make_it(self):
        # yes=True means we *will* create the file when it is not found
        io = InputOutput(pretty=False, yes=True)
        from aider.coders import Coder

        coder = Coder.create(self.GPT35, None, io)
        commands = Commands(io, coder)

        fname = Path("[abc].nonexistent")

        # Call the cmd_add method with a non-existent file pattern
        commands.cmd_add(str(fname))

        # Check if no files have been added to the chat session
        self.assertEqual(len(coder.abs_fnames), 1)
        self.assertTrue(fname.exists())

    def test_cmd_add_drop_directory(self):
        # Initialize the Commands and InputOutput objects
        io = InputOutput(pretty=False, yes=False)
        from aider.coders import Coder

        coder = Coder.create(self.GPT35, None, io)
        commands = Commands(io, coder)

        # Create a directory and add files to it using pathlib
        Path("test_dir").mkdir()
        Path("test_dir/another_dir").mkdir()
        Path("test_dir/test_file1.txt").write_text("Test file 1")
        Path("test_dir/test_file2.txt").write_text("Test file 2")
        Path("test_dir/another_dir/test_file.txt").write_text("Test file 3")

        # Call the cmd_add method with a directory
        commands.cmd_add("test_dir test_dir/test_file2.txt")

        # Check if the files have been added to the chat session
        self.assertIn(str(Path("test_dir/test_file1.txt").resolve()), coder.abs_fnames)
        self.assertIn(str(Path("test_dir/test_file2.txt").resolve()), coder.abs_fnames)
        self.assertIn(str(Path("test_dir/another_dir/test_file.txt").resolve()), coder.abs_fnames)

        commands.cmd_drop("test_dir/another_dir")
        self.assertIn(str(Path("test_dir/test_file1.txt").resolve()), coder.abs_fnames)
        self.assertIn(str(Path("test_dir/test_file2.txt").resolve()), coder.abs_fnames)
        self.assertNotIn(
            str(Path("test_dir/another_dir/test_file.txt").resolve()), coder.abs_fnames
        )

        # Issue #139 /add problems when cwd != git_root

        # remember the proper abs path to this file
        abs_fname = str(Path("test_dir/another_dir/test_file.txt").resolve())

        # chdir to someplace other than git_root
        Path("side_dir").mkdir()
        os.chdir("side_dir")

        # add it via it's git_root referenced name
        commands.cmd_add("test_dir/another_dir/test_file.txt")

        # it should be there, but was not in v0.10.0
        self.assertIn(abs_fname, coder.abs_fnames)

        # drop it via it's git_root referenced name
        commands.cmd_drop("test_dir/another_dir/test_file.txt")

        # it should be there, but was not in v0.10.0
        self.assertNotIn(abs_fname, coder.abs_fnames)

    def test_cmd_drop_with_glob_patterns(self):
        # Initialize the Commands and InputOutput objects
        io = InputOutput(pretty=False, yes=True)
        from aider.coders import Coder

        coder = Coder.create(self.GPT35, None, io)
        commands = Commands(io, coder)

        subdir = Path("subdir")
        subdir.mkdir()
        (subdir / "subtest1.py").touch()
        (subdir / "subtest2.py").touch()

        Path("test1.py").touch()
        Path("test2.py").touch()

        # Add some files to the chat session
        commands.cmd_add("*.py")

        self.assertEqual(len(coder.abs_fnames), 2)

        # Call the cmd_drop method with a glob pattern
        commands.cmd_drop("*2.py")

        self.assertIn(str(Path("test1.py").resolve()), coder.abs_fnames)
        self.assertNotIn(str(Path("test2.py").resolve()), coder.abs_fnames)

    def test_cmd_add_bad_encoding(self):
        # Initialize the Commands and InputOutput objects
        io = InputOutput(pretty=False, yes=True)
        from aider.coders import Coder

        coder = Coder.create(self.GPT35, None, io)
        commands = Commands(io, coder)

        # Create a new file foo.bad which will fail to decode as utf-8
        with codecs.open("foo.bad", "w", encoding="iso-8859-15") as f:
            f.write("ÆØÅ")  # Characters not present in utf-8

        commands.cmd_add("foo.bad")

        self.assertEqual(coder.abs_fnames, set())

    def test_cmd_git(self):
        # Initialize the Commands and InputOutput objects
        io = InputOutput(pretty=False, yes=True)

        with GitTemporaryDirectory() as tempdir:
            # Create a file in the temporary directory
            with open(f"{tempdir}/test.txt", "w") as f:
                f.write("test")

            coder = Coder.create(self.GPT35, None, io)
            commands = Commands(io, coder)

            # Run the cmd_git method with the arguments "commit -a -m msg"
            commands.cmd_git("add test.txt")
            commands.cmd_git("commit -a -m msg")

            # Check if the file has been committed to the repository
            repo = git.Repo(tempdir)
            files_in_repo = repo.git.ls_files()
            self.assertIn("test.txt", files_in_repo)

    def test_cmd_tokens(self):
        # Initialize the Commands and InputOutput objects
        io = InputOutput(pretty=False, yes=True)

        coder = Coder.create(self.GPT35, None, io)
        commands = Commands(io, coder)

        commands.cmd_add("foo.txt bar.txt")

        # Redirect the standard output to an instance of io.StringIO
        stdout = StringIO()
        sys.stdout = stdout

        commands.cmd_tokens("")

        # Reset the standard output
        sys.stdout = sys.__stdout__

        # Get the console output
        console_output = stdout.getvalue()

        self.assertIn("foo.txt", console_output)
        self.assertIn("bar.txt", console_output)

    def test_cmd_add_from_subdir(self):
        repo = git.Repo.init()
        repo.config_writer().set_value("user", "name", "Test User").release()
        repo.config_writer().set_value("user", "email", "testuser@example.com").release()

        # Create three empty files and add them to the git repository
        filenames = ["one.py", Path("subdir") / "two.py", Path("anotherdir") / "three.py"]
        for filename in filenames:
            file_path = Path(filename)
            file_path.parent.mkdir(parents=True, exist_ok=True)
            file_path.touch()
            repo.git.add(str(file_path))
        repo.git.commit("-m", "added")

        filenames = [str(Path(fn).resolve()) for fn in filenames]

        ###

        os.chdir("subdir")

        io = InputOutput(pretty=False, yes=True)
        coder = Coder.create(self.GPT35, None, io)
        commands = Commands(io, coder)

        # this should get added
        commands.cmd_add(str(Path("anotherdir") / "three.py"))

        # this should add one.py
        commands.cmd_add("*.py")

        self.assertIn(filenames[0], coder.abs_fnames)
        self.assertNotIn(filenames[1], coder.abs_fnames)
        self.assertIn(filenames[2], coder.abs_fnames)

    def test_cmd_add_from_subdir_again(self):
        with GitTemporaryDirectory():
            io = InputOutput(pretty=False, yes=False)
            from aider.coders import Coder

            coder = Coder.create(self.GPT35, None, io)
            commands = Commands(io, coder)

            Path("side_dir").mkdir()
            os.chdir("side_dir")

            # add a file that is in the side_dir
            with open("temp.txt", "w"):
                pass

            # this was blowing up with GitCommandError, per:
            # https://github.com/paul-gauthier/aider/issues/201
            commands.cmd_add("temp.txt")

    def test_cmd_commit(self):
        with GitTemporaryDirectory():
            fname = "test.txt"
            with open(fname, "w") as f:
                f.write("test")
            repo = git.Repo()
            repo.git.add(fname)
            repo.git.commit("-m", "initial")

            io = InputOutput(pretty=False, yes=True)
            coder = Coder.create(self.GPT35, None, io)
            commands = Commands(io, coder)

            self.assertFalse(repo.is_dirty())
            with open(fname, "w") as f:
                f.write("new")
            self.assertTrue(repo.is_dirty())

            commit_message = "Test commit message"
            commands.cmd_commit(commit_message)
            self.assertFalse(repo.is_dirty())

    def test_cmd_add_from_outside_root(self):
        with ChdirTemporaryDirectory() as tmp_dname:
            root = Path("root")
            root.mkdir()
            os.chdir(str(root))

            io = InputOutput(pretty=False, yes=False)
            from aider.coders import Coder

            coder = Coder.create(self.GPT35, None, io)
            commands = Commands(io, coder)

            outside_file = Path(tmp_dname) / "outside.txt"
            outside_file.touch()

            # This should not be allowed!
            # https://github.com/paul-gauthier/aider/issues/178
            commands.cmd_add("../outside.txt")

            self.assertEqual(len(coder.abs_fnames), 0)

    def test_cmd_add_from_outside_git(self):
        with ChdirTemporaryDirectory() as tmp_dname:
            root = Path("root")
            root.mkdir()
            os.chdir(str(root))

            make_repo()

            io = InputOutput(pretty=False, yes=False)
            from aider.coders import Coder

            coder = Coder.create(self.GPT35, None, io)
            commands = Commands(io, coder)

            outside_file = Path(tmp_dname) / "outside.txt"
            outside_file.touch()

            # This should not be allowed!
            # It was blowing up with GitCommandError, per:
            # https://github.com/paul-gauthier/aider/issues/178
            commands.cmd_add("../outside.txt")

            self.assertEqual(len(coder.abs_fnames), 0)

    def test_cmd_add_filename_with_special_chars(self):
        with ChdirTemporaryDirectory():
            io = InputOutput(pretty=False, yes=False)
            from aider.coders import Coder

            coder = Coder.create(self.GPT35, None, io)
            commands = Commands(io, coder)

            fname = Path("with[brackets].txt")
            fname.touch()

            commands.cmd_add(str(fname))

            self.assertIn(str(fname.resolve()), coder.abs_fnames)

    def test_cmd_add_dirname_with_special_chars(self):
        with ChdirTemporaryDirectory():
            io = InputOutput(pretty=False, yes=False)
            from aider.coders import Coder

            coder = Coder.create(self.GPT35, None, io)
            commands = Commands(io, coder)

            dname = Path("with[brackets]")
            dname.mkdir()
            fname = dname / "filename.txt"
            fname.touch()

            commands.cmd_add(str(dname))

            self.assertIn(str(fname.resolve()), coder.abs_fnames)

    def test_cmd_add_abs_filename(self):
        with ChdirTemporaryDirectory():
            io = InputOutput(pretty=False, yes=False)
            from aider.coders import Coder

            coder = Coder.create(self.GPT35, None, io)
            commands = Commands(io, coder)

            fname = Path("file.txt")
            fname.touch()

            commands.cmd_add(str(fname.resolve()))

            self.assertIn(str(fname.resolve()), coder.abs_fnames)

    def test_cmd_add_quoted_filename(self):
        with ChdirTemporaryDirectory():
            io = InputOutput(pretty=False, yes=False)
            from aider.coders import Coder

            coder = Coder.create(self.GPT35, None, io)
            commands = Commands(io, coder)

            fname = Path("file with spaces.txt")
            fname.touch()

            commands.cmd_add(f'"{fname}"')

            self.assertIn(str(fname.resolve()), coder.abs_fnames)

    def test_cmd_add_existing_with_dirty_repo(self):
        with GitTemporaryDirectory():
            repo = git.Repo()

            files = ["one.txt", "two.txt"]
            for fname in files:
                Path(fname).touch()
                repo.git.add(fname)
            repo.git.commit("-m", "initial")

            commit = repo.head.commit.hexsha

            # leave a dirty `git rm`
            repo.git.rm("one.txt")

            io = InputOutput(pretty=False, yes=True)
            from aider.coders import Coder

            coder = Coder.create(self.GPT35, None, io)
            commands = Commands(io, coder)

            # There's no reason this /add should trigger a commit
            commands.cmd_add("two.txt")

            self.assertEqual(commit, repo.head.commit.hexsha)

            # Windows is throwing:
            # PermissionError: [WinError 32] The process cannot access
            # the file because it is being used by another process

            repo.git.commit("-m", "cleanup")

            del coder
            del commands
            del repo

    def test_cmd_add_unicode_error(self):
        # Initialize the Commands and InputOutput objects
        io = InputOutput(pretty=False, yes=True)
        from aider.coders import Coder

        coder = Coder.create(self.GPT35, None, io)
        commands = Commands(io, coder)

        fname = "file.txt"
        encoding = "utf-16"
        some_content_which_will_error_if_read_with_encoding_utf8 = "ÅÍÎÏ".encode(encoding)
        with open(fname, "wb") as f:
            f.write(some_content_which_will_error_if_read_with_encoding_utf8)

        commands.cmd_add("file.txt")
        self.assertEqual(coder.abs_fnames, set())

    def test_cmd_add_drop_untracked_files(self):
        with GitTemporaryDirectory():
            repo = git.Repo()

            io = InputOutput(pretty=False, yes=False)
            from aider.coders import Coder

            coder = Coder.create(self.GPT35, None, io)
            commands = Commands(io, coder)

            fname = Path("test.txt")
            fname.touch()

            self.assertEqual(len(coder.abs_fnames), 0)

            commands.cmd_add(str(fname))

            files_in_repo = repo.git.ls_files()
            self.assertNotIn(str(fname), files_in_repo)

            self.assertEqual(len(coder.abs_fnames), 1)

            commands.cmd_drop(str(fname))

            self.assertEqual(len(coder.abs_fnames), 0)

    def test_cmd_undo_with_dirty_files_not_in_last_commit(self):
        with GitTemporaryDirectory() as repo_dir:
            repo = git.Repo(repo_dir)
            io = InputOutput(pretty=False, yes=True)
            coder = Coder.create(self.GPT35, None, io)
            commands = Commands(io, coder)

            other_path = Path(repo_dir) / "other_file.txt"
            other_path.write_text("other content")
            repo.git.add(str(other_path))

            # Create and commit a file
            filename = "test_file.txt"
            file_path = Path(repo_dir) / filename
            file_path.write_text("first content")
            repo.git.add(filename)
            repo.git.commit("-m", "first commit")

            file_path.write_text("second content")
            repo.git.add(filename)
            repo.git.commit("-m", "second commit")

            # Store the commit hash
            last_commit_hash = repo.head.commit.hexsha[:7]
            coder.aider_commit_hashes.add(last_commit_hash)

            file_path.write_text("dirty content")

            # Attempt to undo the last commit
            commands.cmd_undo("")

            # Check that the last commit is still present
            self.assertEqual(last_commit_hash, repo.head.commit.hexsha[:7])

            # Put back the initial content (so it's not dirty now)
            file_path.write_text("second content")
            other_path.write_text("dirty content")

            commands.cmd_undo("")
            self.assertNotEqual(last_commit_hash, repo.head.commit.hexsha[:7])

            self.assertEqual(file_path.read_text(), "first content")
            self.assertEqual(other_path.read_text(), "dirty content")

            del coder
            del commands
            del repo

    def test_cmd_add_aiderignored_file(self):
        with GitTemporaryDirectory():
            repo = git.Repo()

            fname1 = "ignoreme1.txt"
            fname2 = "ignoreme2.txt"
            fname3 = "dir/ignoreme3.txt"

            Path(fname2).touch()
            repo.git.add(str(fname2))
            repo.git.commit("-m", "initial")

            aignore = Path(".aiderignore")
            aignore.write_text(f"{fname1}\n{fname2}\ndir\n")

            io = InputOutput(yes=True)
            coder = Coder.create(
                self.GPT35, None, io, fnames=[fname1, fname2], aider_ignore_file=str(aignore)
            )
            commands = Commands(io, coder)

            commands.cmd_add(f"{fname1} {fname2} {fname3}")

            self.assertNotIn(fname1, str(coder.abs_fnames))
            self.assertNotIn(fname2, str(coder.abs_fnames))
            self.assertNotIn(fname3, str(coder.abs_fnames))