package main

import (
	"fmt"
	"io"
	"os"

	"github.com/spf13/cobra"
	"netdome.biz/paul/qmk-rgb/internal/device"
)

// version is set at build time via -ldflags.
var version = "dev"

var (
	targetDevice string
	targetZone   string
)

func newRootCommand() *cobra.Command {
	cmd := &cobra.Command{
		Use:           "qmk-rgb-tool",
		Short:         "QMK RGB CLI — control QMK keyboard lighting",
		SilenceErrors: true,
		SilenceUsage:  true,
	}
	cmd.PersistentFlags().StringVar(&targetDevice, "device", "", "Keyboard number as printed by 'keyboard info', starting at 1")
	cmd.PersistentFlags().StringVar(&targetZone, "zone", "", "RGB lighting channel: backlight, rgblight, rgb_matrix, audio or led_matrix, or the name this keyboard's definition gives it")
	cmd.PersistentFlags().StringVar(&definitionFlag, "definition", "", "VIA definition file to read effect names from, instead of the one in the data directory")
	cmd.PersistentFlags().BoolVar(&jsonOutput, "json", false, "Print JSON instead of text")
	return cmd
}

var rootCmd = newRootCommand()

func Execute() {
	if err := rootCmd.Execute(); err != nil {
		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
		os.Exit(1)
	}
}

func main() {
	Execute()
}

var keyboardCmd = &cobra.Command{
	Use:   "keyboard",
	Short: "Keyboard management commands",
}

// discoverAll is a seam for tests.
var discoverAll = device.DiscoverAll

// runKeyboardInfo writes the connected QMK keyboards, as text unless --json
// asks otherwise. The 1-based index that --device accepts is in the "index"
// field, so the machine shape emits no banner alongside it. Whether a keyboard
// has effect names is reported per keyboard, because it differs: one board may
// have a definition and the next may not.
func runKeyboardInfo(out io.Writer) error {
	devices, err := discoverAll()
	if err != nil {
		return err
	}

	if devices == nil {
		devices = []device.Device{}
	}

	lines := describeDevices(devices)
	if !jsonOutput {
		return printKeyboardInfoText(out, lines)
	}

	type info struct {
		Devices []keyboardLine `json:"devices"`
		Total   int            `json:"total"`
	}
	return encodeJSON(out, info{Devices: lines, Total: len(lines)})
}

var keyboardInfoCmd = &cobra.Command{
	Use:   "info",
	Short: "Discover connected QMK keyboards",
	Long: "Scan for connected QMK keyboards and print device info as JSON.\n" +
		"Each device carries the 1-based index that --device accepts.",
	Args: cobra.NoArgs,
	RunE: func(cmd *cobra.Command, args []string) error {
		return runKeyboardInfo(cmd.OutOrStdout())
	},
}

func init() {
	rootCmd.AddCommand(keyboardCmd)
	keyboardCmd.AddCommand(keyboardInfoCmd)

	rootCmd.AddCommand(NewEnableCmd())
	rootCmd.AddCommand(NewDisableCmd())
	rootCmd.AddCommand(NewInfoCmd())
	rootCmd.AddCommand(NewEffectCmd())
	rootCmd.AddCommand(NewBrightnessCmd())
	rootCmd.AddCommand(NewSpeedCmd())
	rootCmd.AddCommand(NewColorCmd())
	rootCmd.AddCommand(NewModeCmd())
	rootCmd.AddCommand(NewProfileSaveCmd())
	rootCmd.AddCommand(NewProfileLoadCmd())
	rootCmd.AddCommand(NewProfileListCmd())
	rootCmd.AddCommand(NewProfileDeleteCmd())
	rootCmd.AddCommand(NewDefinitionCmd())

	rootCmd.Version = version
	rootCmd.SetVersionTemplate("	qmk-rgb-tool {{.Version}}\n")
}