Source code for simvx.core.config

"""Unified application configuration for SimVX.

Merges editor and IDE settings into a single ``~/.config/simvx/config.json``
file with ``general``, ``editor``, and ``ide`` sections.  Legacy per-tool
config files (``editor.json``, ``ide.json``) are auto-migrated on first load.
"""

import json
import logging
from dataclasses import asdict, dataclass, field
from pathlib import Path

log = logging.getLogger(__name__)

CONFIG_DIR = Path.home() / ".config" / "simvx"
CONFIG_FILE = CONFIG_DIR / "config.json"

# ---------------------------------------------------------------------------
# Section dataclasses
# ---------------------------------------------------------------------------



@dataclass
class GeneralConfig:
    """Settings shared by both editor and IDE."""

    theme_preset: str = "dark"
    font_size: float = 11.0
    window_width: int = 1600
    window_height: int = 900
    recent_files: list[str] = field(default_factory=list)
    recent_folders: list[str] = field(default_factory=list)
    recent_projects: list[dict] = field(default_factory=list)
    custom_shortcuts: dict[str, str] = field(default_factory=dict)




@dataclass
class EditorSection:
    """Editor-specific settings."""

    dock_layout: dict = field(default_factory=dict)
    show_grid: bool = True
    grid_size: float = 1.0
    grid_subdivisions: int = 4
    snap_enabled: bool = False
    snap_size: float = 0.5
    auto_save_interval: int = 300
    hot_reload_enabled: bool = True




@dataclass
class IDESection:
    """IDE-specific settings."""

    tab_size: int = 4
    insert_spaces: bool = True
    show_line_numbers: bool = True
    show_minimap: bool = True
    show_code_folding: bool = True
    show_indent_guides: bool = True
    auto_save: bool = False
    format_on_save: bool = True
    sidebar_width: int = 250
    bottom_panel_height: int = 200
    sidebar_visible: bool = True
    bottom_panel_visible: bool = True
    lsp_enabled: bool = True
    lsp_command: str = "pylsp"
    lsp_args: list[str] = field(default_factory=list)
    lint_enabled: bool = True
    lint_on_save: bool = True
    lint_command: str = "ruff check --output-format=json"
    format_command: str = "ruff format"
    python_path: str = ""
    venv_path: str = ""
    auto_detect_venv: bool = True
    debug_adapter: str = "debugpy"
    keybindings: dict[str, str] = field(default_factory=dict)


# ---------------------------------------------------------------------------
# AppConfig
# ---------------------------------------------------------------------------



@dataclass
class AppConfig:
    """Unified config with sections, persisted in ``~/.config/simvx/config.json``."""

    general: GeneralConfig = field(default_factory=GeneralConfig)
    editor: EditorSection = field(default_factory=EditorSection)
    ide: IDESection = field(default_factory=IDESection)

    # -- Persistence ---------------------------------------------------------



    def load(self) -> None:
        """Load from ``config.json``. Missing or malformed file leaves defaults."""
        if not CONFIG_FILE.exists():
            return
        try:
            data = json.loads(CONFIG_FILE.read_text(encoding="utf-8"))
        except (json.JSONDecodeError, OSError):
            return
        self._apply_dict(data)




    def save(self) -> None:
        """Write current config to ``config.json``."""
        CONFIG_DIR.mkdir(parents=True, exist_ok=True)
        data = {
            "general": asdict(self.general),
            "editor": asdict(self.editor),
            "ide": asdict(self.ide),
        }
        CONFIG_FILE.write_text(json.dumps(data, indent=2) + "\n", encoding="utf-8")


    # -- Recent helpers ------------------------------------------------------



    def add_recent_file(self, path: str) -> None:
        if path in self.general.recent_files:
            self.general.recent_files.remove(path)
        self.general.recent_files.insert(0, path)
        self.general.recent_files = self.general.recent_files[:20]




    def add_recent_folder(self, path: str) -> None:
        if path in self.general.recent_folders:
            self.general.recent_folders.remove(path)
        self.general.recent_folders.insert(0, path)
        self.general.recent_folders = self.general.recent_folders[:10]


    # -- Internal helpers ----------------------------------------------------

    def _apply_dict(self, data: dict) -> None:
        """Apply a sectioned dict to this config."""
        if "general" in data:
            _update_dataclass(self.general, data["general"])
        if "editor" in data:
            _update_dataclass(self.editor, data["editor"])
        if "ide" in data:
            _update_dataclass(self.ide, data["ide"])


def _update_dataclass(obj: object, data: dict) -> None:
    """Set fields on *obj* from *data*, skipping unknown keys."""
    for key, value in data.items():
        if hasattr(obj, key):
            setattr(obj, key, value)