"""Pydantic models for request/response schemas."""

from __future__ import annotations

from enum import Enum
from typing import Any, Optional

from pydantic import BaseModel, Field


# ─── MCP Protocol Models ───────────────────────────────────────────

class MCPToolInput(BaseModel):
    """MCP tool call input."""
    name: str = Field(..., description="Tool name")
    arguments: dict[str, Any] = Field(default_factory=dict, description="Tool arguments")


class MCPToolResult(BaseModel):
    """MCP tool call result."""
    content: list[dict[str, Any]] = Field(default_factory=list)
    isError: bool = False


class MCPListToolsResponse(BaseModel):
    """MCP list tools response."""
    tools: list[dict[str, Any]]


# ─── Tool-Specific Request Models ──────────────────────────────────

class ExecuteCodeRequest(BaseModel):
    """Request to execute Python code."""
    code: str = Field(..., description="Python code to execute", min_length=1)
    filename: Optional[str] = Field(
        default=None,
        description="Optional filename (without extension)",
        max_length=255,
    )


class InstallDependenciesRequest(BaseModel):
    """Request to install Python packages."""
    packages: list[str] = Field(
        ..., description="List of package names to install", min_length=1
    )


class CheckInstalledPackagesRequest(BaseModel):
    """Request to check if packages are installed."""
    packages: list[str] = Field(
        ..., description="List of package names to check", min_length=1
    )


class ConfigureEnvironmentRequest(BaseModel):
    """Request to configure the execution environment."""
    type: str = Field(..., description="Environment type: conda, venv, or venv-uv")
    conda_name: Optional[str] = Field(default=None, description="Conda environment name")
    venv_path: Optional[str] = Field(default=None, description="Virtualenv path")
    uv_venv_path: Optional[str] = Field(default=None, description="UV virtualenv path")


class InitializeCodeFileRequest(BaseModel):
    """Request to initialize a new code file."""
    content: str = Field(..., description="Initial file content", min_length=1)
    filename: Optional[str] = Field(
        default=None,
        description="Optional filename (without extension)",
        max_length=255,
    )


class AppendToCodeFileRequest(BaseModel):
    """Request to append content to an existing code file."""
    file_path: str = Field(..., description="Path to the existing code file")
    content: str = Field(..., description="Content to append", min_length=1)


class FilePathRequest(BaseModel):
    """Request with just a file path."""
    file_path: str = Field(..., description="Path to the code file")


# ─── Response Models ───────────────────────────────────────────────

class ExecutionResult(BaseModel):
    """Code execution result."""
    success: bool
    stdout: str = ""
    stderr: str = ""
    return_code: int = 0
    file_path: str = ""
    execution_time: float = 0.0


class FileResult(BaseModel):
    """File operation result."""
    success: bool
    file_path: str = ""
    message: str = ""
    content: Optional[str] = None


class PackageCheckResult(BaseModel):
    """Package check result."""
    package: str
    installed: bool
    version: Optional[str] = None


class EnvironmentConfig(BaseModel):
    """Current environment configuration."""
    env_type: str
    conda_env_name: Optional[str] = None
    venv_path: Optional[str] = None
    uv_venv_path: Optional[str] = None
    python_executable: str
    code_storage_dir: str


class HealthResponse(BaseModel):
    """Health check response."""
    status: str = "healthy"
    version: str = "1.0.0"
    environment: str = ""
    code_storage_dir: str = ""
    max_concurrent: int = 0