package config

import (
	"errors"
	"fmt"
	"log/slog"

	"github.com/spf13/cobra"
	"github.com/spf13/viper"

	"git.avsdev.uk/Go/job-search/internal/cli"
	"git.avsdev.uk/Go/job-search/internal/config"
)

func commandSet(opts *cli.Options) *cobra.Command {
	cmd := &cobra.Command{
		Use:   "set [config_key] [config_value]",
		Args:  cobra.MatchAll(cobra.MinimumNArgs(1), cobra.MaximumNArgs(2)),
		Short: "Set a value to configuration",
		PersistentPreRun: func(cmd *cobra.Command, args []string) {
			slog.Debug("command persistent pre-run", "command", "config.set")
		},
		PersistentPostRun: func(cmd *cobra.Command, args []string) {
			slog.Debug("command persistent post-run", "command", "config.set")
		},
		RunE: func(cmd *cobra.Command, args []string) error {
			slog.Debug("command run", "command", "config.set")

			if err := cobra.MinimumNArgs(1)(cmd, args); err != nil {
				return err
			}
			if err := cobra.MaximumNArgs(2)(cmd, args); err != nil {
				return err
			}

			unset, unsetFlagErr := cmd.Flags().GetBool("unset")
			if unsetFlagErr != nil {
				return unsetFlagErr
			}
			if err := cobra.ExactArgs(2)(cmd, args); err != nil && !unset {
				return err
			}

			conf, err := opts.RunSetup(cmd, true, true)
			if err != nil {
				return fmt.Errorf("no configuration loaded (%w)", err)
			}

			if viper.ConfigFileUsed() == "" {
				return errors.New("no configuration file exists")
			}

			if unset {
				return config.PurgeValue(conf, args[0])
			}

			confValue, confType, err := config.StoreValue(conf, args[0], args[1])
			if err != nil {
				return err
			}

			fmt.Print(args[0], " = ", confValue, " <", confType, ">\n")

			return nil
		},
	}
	cmd.Flags().BoolP("unset", "x", false, "clear configuration setting")
	return cmd
}