package hardware

import (
	"context"
	"fmt"
	"math/rand"
	"strings"

	"github.com/rs/zerolog/log"
)

// OS2LDriver represents how the protocol is defined
type OS2LDriver struct {
	peripherals map[string]Peripheral // The list of peripherals
}

// NewOS2LDriver creates a new OS2L driver
func NewOS2LDriver() *OS2LDriver {
	log.Trace().Str("file", "OS2LDriver").Msg("OS2L driver created")
	return &OS2LDriver{
		peripherals: make(map[string]Peripheral),
	}
}

// Initialize initializes the MIDI driver
func (d *OS2LDriver) Initialize() error {
	log.Trace().Str("file", "OS2LDriver").Msg("OS2L driver initialized")
	return nil
}

// CreatePeripheral creates a new OS2L peripheral
func (d *OS2LDriver) CreatePeripheral(ctx context.Context) (Peripheral, error) {
	// Create a random serial number for this peripheral
	randomSerialNumber := strings.ToUpper(fmt.Sprintf("%08x", rand.Intn(1<<32)))
	log.Trace().Str("file", "OS2LDriver").Str("serialNumber", randomSerialNumber).Msg("OS2L peripheral created")
	peripheral := NewOS2LPeripheral("OS2L", randomSerialNumber)
	d.peripherals[randomSerialNumber] = peripheral
	log.Info().Str("file", "OS2LDriver").Str("serialNumber", randomSerialNumber).Msg("OS2L peripheral created and registered")
	return peripheral, nil
}

// RemovePeripheral removes an OS2L dev
func (d *OS2LDriver) RemovePeripheral(serialNumber string) error {
	delete(d.peripherals, serialNumber)
	log.Info().Str("file", "OS2LDriver").Str("serialNumber", serialNumber).Msg("OS2L peripheral removed")
	return nil
}

// GetName returns the name of the driver
func (d *OS2LDriver) GetName() string {
	return "OS2L"
}

// GetPeripheral gets the peripheral that correspond to the specified ID
func (d *OS2LDriver) GetPeripheral(peripheralID string) (Peripheral, bool) {
	// Return the specified peripheral
	peripheral, found := d.peripherals[peripheralID]
	if !found {
		log.Error().Str("file", "OS2LDriver").Str("peripheralID", peripheralID).Msg("unable to get this peripheral in the OS2L driver")
		return nil, false
	}
	log.Trace().Str("file", "OS2LDriver").Str("peripheralID", peripheralID).Msg("OS2L peripheral found in the driver")
	return peripheral, true
}

// Scan scans the interfaces compatible with the MIDI protocol
func (d *OS2LDriver) Scan(ctx context.Context) error {
	return nil
}