"""Constantes globales de la aplicación."""

import sys
from pathlib import Path


def _resolve_app_dir() -> Path:
    """Directorio donde vive el ejecutable (persistente)."""
    if getattr(sys, "frozen", False):
        return Path(sys.executable).resolve().parent
    return Path(__file__).resolve().parent.parent


def _resolve_bundle_dir() -> Path:
    """Recursos embebidos en el binario PyInstaller onefile."""
    if getattr(sys, "frozen", False):
        return Path(sys._MEIPASS)
    platform = "windows" if sys.platform == "win32" else "linux"
    return _resolve_app_dir() / "packaging" / "bundled" / platform


APP_DIR = _resolve_app_dir()
CONFIG_DIR = APP_DIR / "config"
ENV_PATH = CONFIG_DIR / ".env"
DATA_DIR = CONFIG_DIR / "data"
LOGS_DIR = CONFIG_DIR / "logs"
ODBC_DIR = CONFIG_DIR / "odbc"
SEVEN_ZIP_DIR = CONFIG_DIR / "7zip"

IS_WINDOWS = sys.platform == "win32"
BUNDLE_DIR = _resolve_bundle_dir()
BUNDLED_SOURCE_7ZIP = BUNDLE_DIR / "bundled" / "7zip"
BUNDLED_SOURCE_ODBC = BUNDLE_DIR / "bundled" / "odbc"
def _default_7zip_name() -> str:
    if IS_WINDOWS:
        return "7z.exe"
    return "7zz"


BUNDLED_7ZIP_EXE = SEVEN_ZIP_DIR / _default_7zip_name()
BUNDLED_7ZIP_FALLBACK = SEVEN_ZIP_DIR / ("7za.exe" if IS_WINDOWS else "7zz")

# Carpetas de trabajo junto al ejecutable
DIR_ENTRADA = APP_DIR / "Entrada"
DIR_PROCESADOS = APP_DIR / "Procesados"
DIR_FALLADOS = APP_DIR / "Fallados"
DIR_TEMP = APP_DIR / "Temp"

DB_PATH = DATA_DIR / "app.db"

# Estados de jobs
class JobStatus:
    QUEUED = "queued"
    EXTRACTING = "extracting"
    RESTORING = "restoring"
    CLEANING = "cleaning"
    COMPLETED = "completed"
    FAILED = "failed"
    FAILED_RESTART = "failed_restart"
    CANCELLED = "cancelled"


class LogLevel:
    DEBUG = "DEBUG"
    INFO = "INFO"
    WARNING = "WARNING"
    ERROR = "ERROR"
    CRITICAL = "CRITICAL"


class StepType:
    STABILITY_CHECK = "stability_check"
    NODE_MAPPING = "node_mapping"
    EXTRACT = "extract"
    LOCATE_BAK = "locate_bak"
    SQL_CONNECT = "sql_connect"
    FILELIST = "filelist"
    RESTORE = "restore"
    CLEANUP = "cleanup"
    SFTP_COPY = "sftp_copy"
    FORWARD_ZIP = "forward_zip"


def default_seven_zip_path() -> str:
    for candidate in (BUNDLED_7ZIP_EXE, BUNDLED_7ZIP_FALLBACK):
        if candidate.exists():
            return str(candidate)
    return ""


def default_work_paths() -> dict[str, str]:
    return {
        "input_folder": str(DIR_ENTRADA),
        "processed_folder": str(DIR_PROCESADOS),
        "failed_folder": str(DIR_FALLADOS),
        "extract_folder": str(DIR_TEMP),
        "data_sql_folder": "",
        "seven_zip_exe": default_seven_zip_path(),
    }


DEFAULT_CONFIG = {
    "paths": default_work_paths(),
    "sql": {
        "server": "localhost",
        "use_windows_auth": IS_WINDOWS,
        "username": "",
        "password_encrypted": "",
    },
    "concurrency": {
        "extract_workers": 1,
        "restore_workers": 1,
    },
    "stability": {
        "check_enabled": True,
        "check_interval_seconds": 5,
        "stable_duration_seconds": 10,
        "use_ready_marker": False,
    },
    "timeouts": {
        "extract_minutes": 30,
        "restore_minutes": 60,
    },
    "retries": {
        "max_attempts": 3,
        "retry_delay_seconds": 60,
    },
    "features": {
        "dry_run_mode": False,
        "auto_scan_enabled": True,
        "scan_interval_seconds": 30,
    },
    "panel": {
        "api_url": "",
        "api_token": "",
        "instance_key": "",
        "verify_ssl": False,
    },
}