"""Timing configuration for Phone Agent.

This module defines all configurable waiting times used throughout the application.
Users can customize these values by modifying this file or by setting environment variables.
"""

import os
from dataclasses import dataclass


@dataclass
class ActionTimingConfig:
    """Configuration for action handler timing delays."""

    # Text input related delays (in seconds)
    keyboard_switch_delay: float = 1.0  # Delay after switching to ADB keyboard
    text_clear_delay: float = 1.0  # Delay after clearing text
    text_input_delay: float = 1.0  # Delay after typing text
    keyboard_restore_delay: float = 1.0  # Delay after restoring original keyboard

    def __post_init__(self):
        """Load values from environment variables if present."""
        self.keyboard_switch_delay = float(
            os.getenv("PHONE_AGENT_KEYBOARD_SWITCH_DELAY", self.keyboard_switch_delay)
        )
        self.text_clear_delay = float(
            os.getenv("PHONE_AGENT_TEXT_CLEAR_DELAY", self.text_clear_delay)
        )
        self.text_input_delay = float(
            os.getenv("PHONE_AGENT_TEXT_INPUT_DELAY", self.text_input_delay)
        )
        self.keyboard_restore_delay = float(
            os.getenv("PHONE_AGENT_KEYBOARD_RESTORE_DELAY", self.keyboard_restore_delay)
        )


@dataclass
class DeviceTimingConfig:
    """Configuration for device operation timing delays."""

    # Default delays for various device operations (in seconds)
    default_tap_delay: float = 1.0  # Default delay after tap
    default_double_tap_delay: float = 1.0  # Default delay after double tap
    double_tap_interval: float = 0.1  # Interval between two taps in double tap
    default_long_press_delay: float = 1.0  # Default delay after long press
    default_swipe_delay: float = 1.0  # Default delay after swipe
    default_back_delay: float = 1.0  # Default delay after back button
    default_home_delay: float = 1.0  # Default delay after home button
    default_launch_delay: float = 1.0  # Default delay after launching app

    def __post_init__(self):
        """Load values from environment variables if present."""
        self.default_tap_delay = float(
            os.getenv("PHONE_AGENT_TAP_DELAY", self.default_tap_delay)
        )
        self.default_double_tap_delay = float(
            os.getenv("PHONE_AGENT_DOUBLE_TAP_DELAY", self.default_double_tap_delay)
        )
        self.double_tap_interval = float(
            os.getenv("PHONE_AGENT_DOUBLE_TAP_INTERVAL", self.double_tap_interval)
        )
        self.default_long_press_delay = float(
            os.getenv("PHONE_AGENT_LONG_PRESS_DELAY", self.default_long_press_delay)
        )
        self.default_swipe_delay = float(
            os.getenv("PHONE_AGENT_SWIPE_DELAY", self.default_swipe_delay)
        )
        self.default_back_delay = float(
            os.getenv("PHONE_AGENT_BACK_DELAY", self.default_back_delay)
        )
        self.default_home_delay = float(
            os.getenv("PHONE_AGENT_HOME_DELAY", self.default_home_delay)
        )
        self.default_launch_delay = float(
            os.getenv("PHONE_AGENT_LAUNCH_DELAY", self.default_launch_delay)
        )


@dataclass
class ConnectionTimingConfig:
    """Configuration for ADB connection timing delays."""

    # ADB server and connection delays (in seconds)
    adb_restart_delay: float = 2.0  # Wait time after enabling TCP/IP mode
    server_restart_delay: float = (
        1.0  # Wait time between killing and starting ADB server
    )

    def __post_init__(self):
        """Load values from environment variables if present."""
        self.adb_restart_delay = float(
            os.getenv("PHONE_AGENT_ADB_RESTART_DELAY", self.adb_restart_delay)
        )
        self.server_restart_delay = float(
            os.getenv("PHONE_AGENT_SERVER_RESTART_DELAY", self.server_restart_delay)
        )


@dataclass
class TimingConfig:
    """Master timing configuration combining all timing settings."""

    action: ActionTimingConfig
    device: DeviceTimingConfig
    connection: ConnectionTimingConfig

    def __init__(self):
        """Initialize all timing configurations."""
        self.action = ActionTimingConfig()
        self.device = DeviceTimingConfig()
        self.connection = ConnectionTimingConfig()


# Global timing configuration instance
# Users can modify these values at runtime or through environment variables
TIMING_CONFIG = TimingConfig()


def get_timing_config() -> TimingConfig:
    """
    Get the global timing configuration.

    Returns:
        The global TimingConfig instance.
    """
    return TIMING_CONFIG


def update_timing_config(
    action: ActionTimingConfig | None = None,
    device: DeviceTimingConfig | None = None,
    connection: ConnectionTimingConfig | None = None,
) -> None:
    """
    Update the global timing configuration.

    Args:
        action: New action timing configuration.
        device: New device timing configuration.
        connection: New connection timing configuration.

    Example:
        >>> from phone_agent.config.timing import update_timing_config, ActionTimingConfig
        >>> custom_action = ActionTimingConfig(
        ...     keyboard_switch_delay=0.5,
        ...     text_input_delay=0.5
        ... )
        >>> update_timing_config(action=custom_action)
    """
    global TIMING_CONFIG
    if action is not None:
        TIMING_CONFIG.action = action
    if device is not None:
        TIMING_CONFIG.device = device
    if connection is not None:
        TIMING_CONFIG.connection = connection


__all__ = [
    "ActionTimingConfig",
    "DeviceTimingConfig",
    "ConnectionTimingConfig",
    "TimingConfig",
    "TIMING_CONFIG",
    "get_timing_config",
    "update_timing_config",
]