package app

import (
	"fmt"
	"log"
	"strings"
	"time"

	"vrc_osc_go/internal/osc"
)

const discordDebounce = 300 * time.Millisecond

func handleDiscordSend(state *discordMuteState, args []osc.Value) error {
	state.mu.Lock()
	defer state.mu.Unlock()

	if len(args) == 0 {
		return fmt.Errorf("OSC args is empty")
	}
	isPressed, err := toBool(args[0])
	if err != nil {
		return err
	}

	now := time.Now()
	if !state.lastAction.IsZero() && now.Sub(state.lastAction) < discordDebounce {
		return nil
	}

	if isPressed && !state.buttonPressed {
		state.buttonPressed = true
		if state.muted {
			log.Printf("ACTION VRChat button pressed -> Discord unmute hotkey")
			if err := pressDiscordMuteHotkey(); err != nil {
				return err
			}
			state.muted = false
			SetDiscordMuted(state.muted)
			state.lastAction = now
		} else {
			log.Printf("INFO already unmuted")
		}
		return nil
	}

	if !isPressed && state.buttonPressed {
		state.buttonPressed = false
		if !state.muted {
			log.Printf("ACTION VRChat button released -> Discord mute hotkey")
			if err := pressDiscordMuteHotkey(); err != nil {
				return err
			}
			state.muted = true
			SetDiscordMuted(state.muted)
			state.lastAction = now
		} else {
			log.Printf("INFO already muted")
		}
	}

	return nil
}

func toBool(v osc.Value) (bool, error) {
	switch v.Type {
	case 'T':
		return true, nil
	case 'F':
		return false, nil
	case 'i':
		return v.Int != 0, nil
	case 'f':
		return v.Float != 0, nil
	case 's':
		switch strings.ToLower(strings.TrimSpace(v.Str)) {
		case "true", "1", "on", "yes":
			return true, nil
		case "false", "0", "off", "no":
			return false, nil
		default:
			return false, fmt.Errorf("unsupported OSC value: %q", v.Str)
		}
	case 0:
		return false, fmt.Errorf("unsupported OSC value")
	default:
		return false, fmt.Errorf("unsupported OSC type: %q", v.Type)
	}
}