package configparser

import (
	"fmt"
	"strings"

	"git.annabunches.net/annabunches/joyful/internal/logger"
	"github.com/holoplot/go-evdev"
)

// InitPhysicalDevices will create InputDevices corresponding to any registered
// devices with type = physical.
//
// This function assumes Parse() has been called.
//
// This function should only be called once.
func (parser *ConfigParser) InitPhysicalDevices() map[string]*evdev.InputDevice {
	deviceMap := make(map[string]*evdev.InputDevice)

	for _, deviceConfig := range parser.config.Devices {
		if strings.ToLower(deviceConfig.Type) != DeviceTypePhysical {
			continue
		}

		deviceConfig := deviceConfig.Config.(DeviceConfigPhysical)

		var infoName string
		var device *evdev.InputDevice
		var err error

		if deviceConfig.DevicePath != "" {
			infoName = deviceConfig.DevicePath
			device, err = evdev.Open(deviceConfig.DevicePath)
		} else {
			infoName = deviceConfig.DeviceName
			device, err = evdev.OpenByName(deviceConfig.DeviceName)
		}

		if err != nil {
			logger.LogError(err, "Failed to open physical device, skipping. Confirm the device name or path with 'evinfo'")
			continue
		}

		if deviceConfig.Lock {
			logger.LogDebugf("Locking device '%s'", infoName)
			err := device.Grab()
			if err != nil {
				logger.LogError(err, "Failed to grab device for exclusive access")
			}
		}

		logger.Log(fmt.Sprintf("Connected to '%s' as '%s'", infoName, deviceConfig.Name))
		deviceMap[deviceConfig.Name] = device
	}

	return deviceMap
}