from __future__ import annotations

from app.core.contracts import ToolResult, UserTask
from app.tools.base import BaseTool
from app.tools.sandbox import ToolSandbox


class FileReadTool(BaseTool):
    name = "file_read"

    def __init__(self, sandbox: ToolSandbox) -> None:
        self._sandbox = sandbox

    def execute(self, task: UserTask, args: dict[str, object]) -> ToolResult:
        path = args.get("path")
        if not path:
            return ToolResult(tool=self.name, ok=False, error="Missing path")
        resolved = self._sandbox.ensure_path_allowed(str(path))
        content = resolved.read_text(encoding="utf-8")
        return ToolResult(
            tool=self.name,
            ok=True,
            output=content,
            metadata={"path": str(resolved), "size": len(content)},
        )