"""Tests for local Git operations."""

import subprocess
import tempfile
from pathlib import Path
from typing import Any

import pytest

from app.git.operations import LocalGitOperations


@pytest.fixture
def local_git() -> LocalGitOperations:
    return LocalGitOperations()


@pytest.fixture
def temp_repo() -> Any:
    with tempfile.TemporaryDirectory() as tmpdir:
        repo_path = Path(tmpdir) / "repo"
        repo_path.mkdir()
        subprocess.run(
            ["git", "init", "--initial-branch=main"],
            cwd=repo_path,
            capture_output=True,
            text=True,
            check=True,
        )
        subprocess.run(
            ["git", "config", "user.email", "test@example.com"],
            cwd=repo_path,
            capture_output=True,
            text=True,
            check=True,
        )
        subprocess.run(
            ["git", "config", "user.name", "Test User"],
            cwd=repo_path,
            capture_output=True,
            text=True,
            check=True,
        )
        yield repo_path


def test_clone_raises_not_implemented_error(local_git: LocalGitOperations) -> None:
    with pytest.raises(NotImplementedError):
        local_git.clone("https://example.com/repo.git", Path("/tmp/dest"), "cred-id")


def test_fetch_raises_not_implemented_error(local_git: LocalGitOperations, temp_repo: Path) -> None:
    with pytest.raises(NotImplementedError):
        local_git.fetch(temp_repo, "cred-id")


def test_push_raises_not_implemented_error(local_git: LocalGitOperations, temp_repo: Path) -> None:
    with pytest.raises(NotImplementedError):
        local_git.push(temp_repo, "cred-id")


def test_get_status_on_non_git_directory_raises(local_git: LocalGitOperations) -> None:
    with tempfile.TemporaryDirectory() as tmpdir:
        with pytest.raises(RuntimeError, match="Not a git repository"):
            local_git.get_status(Path(tmpdir))


def test_get_status_clean_repo(local_git: LocalGitOperations, temp_repo: Path) -> None:
    status = local_git.get_status(temp_repo)
    assert status["branch"] == "main"
    assert status["clean"] is True
    assert status["untracked"] == []
    assert status["modified"] == []
    assert status["staged"] == []
    assert status["deleted"] == []


def test_get_status_untracked_file(local_git: LocalGitOperations, temp_repo: Path) -> None:
    (temp_repo / "newfile.txt").write_text("hello")
    status = local_git.get_status(temp_repo)
    assert "newfile.txt" in status["untracked"]
    assert status["clean"] is False


def test_get_status_staged_file(local_git: LocalGitOperations, temp_repo: Path) -> None:
    file_path = temp_repo / "newfile.txt"
    file_path.write_text("hello")
    subprocess.run(
        ["git", "add", "newfile.txt"],
        cwd=temp_repo,
        capture_output=True,
        text=True,
        check=True,
    )
    status = local_git.get_status(temp_repo)
    assert "newfile.txt" in status["staged"]
    assert status["clean"] is False


def test_get_status_modified_file(local_git: LocalGitOperations, temp_repo: Path) -> None:
    file_path = temp_repo / "newfile.txt"
    file_path.write_text("hello")
    subprocess.run(
        ["git", "add", "newfile.txt"],
        cwd=temp_repo,
        capture_output=True,
        text=True,
        check=True,
    )
    file_path.write_text("world")
    status = local_git.get_status(temp_repo)
    assert "newfile.txt" in status["modified"]
    assert status["clean"] is False


def test_get_status_deleted_file(local_git: LocalGitOperations, temp_repo: Path) -> None:
    file_path = temp_repo / "newfile.txt"
    file_path.write_text("hello")
    subprocess.run(
        ["git", "add", "newfile.txt"],
        cwd=temp_repo,
        capture_output=True,
        text=True,
        check=True,
    )
    subprocess.run(
        ["git", "commit", "-m", "add file"],
        cwd=temp_repo,
        capture_output=True,
        text=True,
        check=True,
    )
    file_path.unlink()
    status = local_git.get_status(temp_repo)
    assert "newfile.txt" in status["deleted"]
    assert status["clean"] is False


def test_get_status_branch_name(local_git: LocalGitOperations, temp_repo: Path) -> None:
    subprocess.run(
        ["git", "checkout", "-b", "feature-branch"],
        cwd=temp_repo,
        capture_output=True,
        text=True,
        check=True,
    )
    status = local_git.get_status(temp_repo)
    assert status["branch"] == "feature-branch"