from __future__ import annotations

import json
import sys
from pathlib import Path

import pytest

sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "src"))

from cc_slim.tools import (
    _safe_path,
    bash_tool,
    edit_tool,
    glob_tool,
    grep_tool,
    read_tool,
    write_tool,
)


def test_safe_path_allows_workspace_children(tmp_path: Path) -> None:
    path = _safe_path(tmp_path, "a/b.txt")

    assert path == (tmp_path / "a/b.txt").resolve()


def test_safe_path_blocks_escape(tmp_path: Path) -> None:
    with pytest.raises(ValueError, match="路径越过工作区边界"):
        _safe_path(tmp_path, "../outside.txt")


def test_write_edit_read_glob_grep_flow(tmp_path: Path) -> None:
    created = write_tool(tmp_path, {"path": "hello.py", "content": "print('hello')\n"})
    edited = edit_tool(tmp_path, {"path": "hello.py", "content": "print('world')\n"})
    read_back = read_tool(tmp_path, {"path": "hello.py"})
    globbed = glob_tool(tmp_path, {"pattern": "*.py"})
    grepped = grep_tool(tmp_path, {"pattern": "world", "path": "."})

    assert created == "已创建文件: hello.py"
    assert edited == "已修改文件: hello.py"
    assert "1: print('world')" in read_back
    assert globbed == "hello.py"
    assert "hello.py:1: print('world')" in grepped


def test_bash_tool_success(tmp_path: Path) -> None:
    result = bash_tool(tmp_path, {"command": "cmd /c exit 0"})
    payload = json.loads(result)

    assert payload["returncode"] == 0


def test_edit_requires_existing_file(tmp_path: Path) -> None:
    result = edit_tool(tmp_path, {"path": "missing.txt", "content": "x"})

    assert result == "文件不存在: missing.txt"